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 [Search a list of Patent Appplications for class 525]   CLASS 525,SYNTHETIC RESINS OR NATURAL RUBBERS -- PART OF THE CLASS 520 SERIES
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SECTION I - CLASS DEFINITION

Class 525 provides for all processes or products wherein a solid polymer is chemically modified or admixed with an additional solid polymer. It also provides for processes or products involving nonsolid specified intermediate condensation products which are admixed with an additional specified intermediate condensation product or specified polymer forming ingredients. In addition, this class provides for vinyl alcohol polymers or modified forms thereof and for polyesters admixed with an ethylenic reactant.

SECTION II - LINES WITH OTHER CLASSES AND WITHIN THIS CLASS

(A) Listed below are rules to be followed in placing patents into and in determining the appropriate subclasses to be searched in Class 525.

(1) ETHYLENIC POLYMERS — The following rules are applicable to subclasses 55-388.

(a) When a polymer derived from ethylenic reactants only is not specified as a liquid or terms which are generally regarded as indicating a liquid (e.g., wax, waxy, etc.) it will be regarded as being a solid (e.g., polyethylene, polystyrene, etc.).

(b) Products are classified on the basis of their preparation. A product identified by a structure is to be placed with the process of its preparation; for instance, a product identified, as illustrated below, and which product from the disclosures is prepared by the reaction of polyacryloamide and formaldehyde is classified on the basis of polyacryloamide reacted with formaldehyde in a case involving rubber (e.g., halogenated, etc.) classification is on the basis of a solid polymer derived from isoprene.

Image 1 for class 525 subclass 0

(c) All subclasses are based on a process of mixing. Products, per se, therefore are classified on the basis of the process of mixing.

(d) All solid polymers (subclasses 191+) are classified on the basis of the initial solid polymer derived from ethylenic reactants (e.g., a mixture of a halogenated polybutadiene and polyethylene is classified as an original in subclass 232 rather than as a halogen containing reactant, for example, in subclass 213).

(e) A process of halogenating polybutadiene and subsequently blending same with polyethylene is classified as in (D) above.

(f) In those subclasses which require the combination of two or more reactants (e.g., subclass 165 or subclass 178, etc.) the two reactants need not be added simultaneously to the ethylenic polymer, nor need they be reacted together prior to addition with the ethylenic polymer. They may be added subsequently, or there may be an intermediate reactant which is not, per se, the type required in these subclasses (e.g., other than amine, polycarboxylic acid, polyol, etc.). However, if the intermediate reactant is provided higher in the schedule (e.g., isocyanate, polyepoxide) it is classified in the higher provided subclass, etc.

(g) Compositions which have been admixed and are not in a reacted state are classified on the basis of the reactants in the schedule hierarchy.

(h) The following rules apply to subclasses 100+, 107+, 123+, 132+, 153, 154+, 165+, and 178+. Each of the above subclasses provide for:

(i) The reaction of an ethylenic polymer and a saturated reactant required by that subclass or polymer thereof (e.g., aldehyde, phenols, etc.).

(ii) The physical blend of an ethylenic polymer and a solid polymer derived from a saturated reactant required by that subclass.

(iii) The physical blend of an ethylenic polymer and a solid polymer derived from at least one ethylenic reactant required by that subclass and at least one saturated coreactant.

(iv) The mixture of an ethylenically unsaturated polymer and a specified intermediate condensation product, specified polymer forming ingredients, or solid polymer thereof, which is other than solely derived from ethylenic materials and wherein an ingredient required by that subclass is ethylenic and is part of the specified intermediate condensation product, specified polymer forming ingredient system, or solid polymer; or wherein the material required by that subclass is ethylenic and is in addition to a solid polymer, polymer forming ingredient system, or intermediate condensation containing at least one saturated reactant.

(v) Excluded from these subclasses are those processes or products wherein an ethylenic polymer is admixed with ethylenic material (e.g., polyacrolein or acrolein) only or polymers thereof.

(vi) Included herein are those situations wherein a treatment is effected on a polymer with part of a specified polymer forming ingredient system and in which a later reactant is added which forms a specified polymer-forming ingredient system therewith. The ehtylenic reactant which is required by that subclass can be part of the polymer-forming ingredient system or it may be part of the specified intermediate condensation product.

(2) CONDENSATES - PROCESSES: The following rules are applicable to subclasses 389-540.

(a) Processes of preparing products are classified with the product in the absence of any specified process subclass.

(b) Processes of treating a previously treated product are classified on the basis of the original solid polymer originally formed, e.g., treating a starting halogenated polyamide with an epoxy is classified as an original in the first appearing subclass of the schedule that provides for treating a polyamide with a halogen or epoxy, etc. If the process of preparing the starting materials is not claimed and the claimed step is provided in a lower subclass than the process if claimed of preparing the starting material, then a cross-reference into the claimed process is appropriate, e.g., Schedule reads as follows:

Polyamide

. treating with halogen

. treating with epoxy

Claim reads:

Halogenated polyamide is treated with an epoxy. The original is placed into the halogen subclass and should be cross-referenced into the epoxy subclass. If, however, the steps of halogenating and epoxidizing are claimed, the original is placed into the halogenating subclass and a cross-reference into the epoxy subclass is deemed to be optional.

(c) When a condensate polymer is not specified as a solid or identified by properties which identify it as a solid e.g., melting point, etc., then it is considered a liquid and as such is treated as a reactant.

(d) When a condensate polymer is noted in generic terms or is identified by a trade name or manufacturer, it is to be regarded as follows:

polyester = reaction product of a saturated dicarboxylic acid or derivative and ethylene glycol.

polyamide = reaction product of a saturated dicarboxylic acid or derivative and a diamine.

polyamide = identified as a nylon 6 is the reaction product of a caprolactam.

polyphenyleneoxide = reaction product of a monohydric phenol.

polyarylene sulfide = polyphenylene sulfide reaction product of an alkali metal sulfide reactant and a halogenated aromatic reactant.

polyoxymethylene = formaldehyde polymer.

polycarbonate = reaction product of halhal or OO and a dihydric aromatic dialcohol.

polyurethane = reaction product of R-(N=C=X)2(X is chalcogen) and ethylene glycol.

polyurea = reaction product of R-(N=C=X)2(X is chalcogen) and a diamine.

novalac = reaction product of formaldehyde and a monohydric phenol.

resole = reaction product of formaldehyde and a monohydric phenol.

aminoplast = reaction product of formaldehyde and an amine.

phenoplast = reaction product of formaldehyde and a monohydric phenol.

(e) In a multistep process of treating a polymer the first appearing step of treating in the schedule array provides for the original placement.

Claim reads:

polyamide treated sequentially with X, Y, and Z

Schedule reads:

polyamide

. treating with y

. treating with z

. treating with x

The original with Y, which is the first appearing subclass in schedule

(f) In those processes wherein two reactants are required to treat a solid polymer material (e.g., polyamide treated with a polyol and a polycarboxylic acid, the polyol and carboxylic acid can be added concurrently, sequentially, or even an intermittent step of adding material between the addition of the polyol and polycarboxylic acid may be involved).

(g)(i) In a multistep process wherein materials are reacted together and an intermediate solid polymer is formed which is subsequently reacted, all of the materials recited up to the step of preparing the intermediate solid polymer are regarded as reactants in preparing a solid polymer, and all materials which are reacted with the intermediate solid polymer are regarded as treating agents.

A + BC (no identity recited) to solid

C + D[E] Intermediate solid polymer [E] hal" hal [E]

(ii) Reactants to prepare intermediate solid polymer are A, B, and D.

A + BC (no identity recited as to solid nature)

C + DE D is a solid polymer higher in schedule array than (C) if it were a solid polymer, therefore classified as original with (D)

(iii) A + BC (no identity as to solid nature)

C + DE D is a solid polymer lower in the schedule array than C if C was solid.

Classified as original with (D) and cross-referenced to (C). In this situation (C) is regarded for cross-referencing purposes as if it were a solid.

(h) A process of preparing a reactable composition is classified on the basis of the reactants involved in preparing the composition.

(3) PRODUCTS - CONDENSATES

(a) All products must be classified on the basis of their preparation as indicated by the disclosure.

(b) When products are to be classified all rules to processes described hereinbefore are applicable.

(c) A method of preparing a polymerizable composition is classified as a process on the basis of the reactants recited in preparing the polymerizable composition.

(4) ETHYLENIC OR CONDENSATION POLYMERS For purposes of classification:

(a) A solid polymer is always considered as being a reactant.

(b) A solid polymer is always classified on the reactants utilized in its preparation, e.g., natural rubber is classified as based on isoprene.

(c) In this class once the solid polymer is identified, all modifications thereof are included in the indents thereunder "specified as mixed". For instance, mixing a solid polyphenylene oxide with a silicon modified polyester is classified in subclass 393. Subclass 393 provides for processes starting with or treating a solid polyphenylene oxide with a silicon containing reactant and subsequently admixing same with a silicon or nonsilicon containing polyester, or for processes of admixing a solid polyphe

nylene oxide with a silicon containing polyester, or treating a mixture of a solid polyphenylene oxide and polyester with a silicon containing reactant.

(d) Processes wherein two or more reactants (ethylenic or nonethylenic) are reacted at preferential conditions so that one reactant forms a solid polymer while the other reactant is substantially unchanged and which other reactant is then subsequentially reacted with the formed solid polymer are classified in Class 526, 527, or 528. When, however, such a product is admixed with an additional solid polymer, specified polymer forming ingredients, or with a specified intermediate condensation product it is proper for this class (525). When the product is derived from ethylenic monomers only and is identified as a block or graft polymer and is subsequently admixed with an additional solid polymer, specified intermediate condensation product, or specified polymer forming ingredients, it is classified in this class (525) as if it were a block or graft copolymer. When the patentee discloses that a polymeric mixture is prepared by the interpolymerization of two or more reactants, A + B polymer, AB + polymer A, etc., such a product or process is proper in Classes 526, 527, or 528.

(e) Aftertreatment of a solid inorganic polymer with an organic compound to form an organic group containing polymer is proper in Class 526, 527, or 528. To be proper for this class (525) a solid organic polymer must be chemically treated.

(f) Patents in subclasses 192-196, 337, 338, and 503-508 which recite "chemical treating agent" are classified as follows:

(i) A "chemical treating agent" for purposes of this class is a chemical material which is added to the formed polymer and which causes or is present during a process wherein a change in a bond of the polymer is effected.

(ii) These subclasses provide for all chemical aftertreatments of a previously formed polymer derived from only ethylenic monomers when such aftertreatments are performed in the presence of a chemical agent, including treatments that are performed with chemical agents that are not specific as to identity or amount of the chemical agent, with the exception of mere reference to cross-linking, curing, or vulcanizing.

(iii) Claims are classified in these subclasses on the basis of the first-appearing material utilized as part of the chemical agent. No attempt has been made to classify on the basis of the chemically active material and therefore all materials in a composition are regarded equally (e.g., diluent, reactant, catalyst, etc.).

(iv) Claims to a composition or method of preparing (e.g., polymer plus a chemical reactive material) are classified as if they were process claims and as if the actual process has gone to completion.

(g) This class (525) includes processes of preparing solid polymers or resinifiable intermediate condensation products from a mixture of reactants wherein one of the initial reactants is used in an excessive amount with the expressed purpose of being used in a subsequent step to form with an added reactant a specified polymer-forming mixture. The original reaction mixture must produce a solid polymer or resinifiable intermediate condensation product and the process must recite the addition of the added reactant which, together with the excess of original reactant, forms the specified polymer-forming ingredients.

(B) Listed below are lines between particular Clas 525 subclasses and other areas (e.g., other Class 525 areas or other Classes).

(1) Lines relative to subclases 192+

A chemical agent is a material which can react with the polymer to cause a modification in the polymer"s chemical structure. Proper for this subclass would be, e.g., chemical reactions as halogenation, sulfonation, nitration, vulcanization, etc. Additionally, the treating agent if an ethylenic reactant, may preferentially homo- or copolymerize with other reactants to produce additional polymers. A patent which claims both product and process for producing a polymeric mixture containing a graft copolymer starting with two ethylenically derived polymers and an ethylenic reactant, requires that the original be classified Class 525 subclasses 192+ and should be crossed into the graft copolymer subclasses 63+. See Class 523, subclasses 1+ for a mixture of polymers with nonpolymeric material whose only purpose is, e.g., to enhance processibility of the polymers, stabilize against deterioration or aid deterioration after a given time (prodegradant), or act as a nucleating or crystallizing agent, etc. Search Class 528, subclasses 480+ for the treating of polymeric mixture in order to destroy residual catalyst or remove or neutralizimpurities. However, the neutralization of a polymeric salt with an acid or base is classified here. Included here also are processes wherein one or more polymers are chemically aftertreated and subsequently blended with themselves or with other polymers.

(2) Lines relative to subclases 242+

Subclass 242+ and indented subclasses also contain polymers prepared from a combination of ethylenic reactants mixed with nonethylenic reactants when reacted in the presence of ethylenically polymerized polymers, e.g., ethylene-ethylene oxide copolymer, propylene-sulfur dioxide copolymer. However, for the process of mixing such polymers see this class, subclass 185. Product claims are classified on the basis of ethylenic reactants either in the polymerized or unpolymerized state and cross-referenced to the nonethylenic reactant as being specified materials in this class, subclasses 244+. Process claims, of course, are classified according to claimed specified materials and, if lacking, then they are classified on the basis of the product.

(3) Lines relative to subclases 267

This subclass excludes the presence of a preformed polymer derived from ethylenic reactants only. This subclass is to be clearly distinguished from subclass 244 wherein the solid polymer, whether or not prepared in situ, is contacted both by an ethylenic reactant and a specified material. In the present subclasses the in situ prepared polymer is contacted with an ethylenic reactant. Typically, the polymer is not isolated or purified but is further reacted with an ethylenic reactant. For example, styrene is contacted with lithium butyl catalyst which results in formation of lithium terminated polystyrene block. The in situ-prepared polymer is then reacted with butadiene to produce polybutadiene-polystyrene block copolymer.

(4) Lines relative to subclases 326.1 through 388

(a) The following rules apply in classifying a claim into this area of the Class 525 schedule:

(i) For purposes of clarification in this part of the schedule, subclasses 326.1 to 334.1 are deemed to be chemically modified product subclasses; and subclasses 337 to 388 are deemed to be chemical modification process subclasses.

(ii) Patents that claim a chemically treated product and process, wherein both the product and the process are specifically provided for in the schedule, are classified in the product area (326.1 to 334.1) and cross referenced to the process area (337 to 388).

(iii) Patents that claim both a product (326.1 to 334.1) and a provided for process (337 to 388) and wherein the product is claimed in process terms are classified on the basis of the product (326.1 to 334.1) and cross-referenced to the process (337 to 388) on the basis of the chemical treating agent first appearing in the classification hierarchy.

(iv) Patents that claim a chemically modified product solely in process terms are classified on the basis of the product (326.1 to 334.1) and are desireably cross-referenced to the process (337 to 388) on the basis of the chemical treating agent first appearing in the classification hierarchy.

(v) Patents that claim nominally vulcanized, cured, or crosslinked solid polymers from ethylenic monomers only, (or nominal process claims directed to vulcanizing, curing or cross-linking) are classified as polymers as appropriate in Class 526; see also Class 526, subclass 72 (1) Note (A8).

(vi) Patents that claim vulcanized, cured or cross-linked solid polymers from ethylenic monomers only, wherein the vulcanizing, curing or cross-linking agent is identified by an atom (e.g., sulfur containing vulcanizing agent, etc.), by an amount (e.g., cured using 2% by weight of a vulcanizing agent, etc.) or by a significant process step (e.g., cured by heating to a specific temperature in presence of a vulcanizing agent, etc.) are classified as chemically modified products (326.1 to 334.1).

(b) Claims to an aftertreated product are classified on the basis of the initial monomers or monomers that are polymerized; except where certain chemical modifications or chemical treating agents are specifically provided for as an indented subclass under a monomer. In certain cases this determination is made from the disclosure. An example of such a situation is a treated halogenated polyethylene wherein the disclosure recites halogenation of a previously formed polyethylene polymer. In this case, classification is made on the basis of polyethylene rather than on halogenated polyethylene.

(c) Vulcanizable compositions are not subject matter for this subclass unless prior to the vulcanization or cross-linking step there is present a chemically modified solid polymer derived from ethylenic monomers only.

(d) The final product need not contain an atom of the chemical treating agent employed. For example, polyvinyl chloride which has been treated with a dehalogenating agent, is classified in subclass 331.5.

(e) Examples of patent placement within this and the indented subclasses. Patentee claims:

(i) Polyethlyene which has been chlorosulfonated by treatment with SO2 and CL2 at elevated temperature and pressure. There are also claims directed to this process of chlorosulfonation of polyethylene. The original classification is in subclass 333.9 with a mandatory cross-reference to subclass 344. This represents an inversion of the classification rule and process versus product in hierarchy of class 526.

(ii) A vulcanizable polyethylene composition comprising a mixture of polyethylene and zinc oxide as vulcanizing agent. The original classification is with the process subclass 373 since this product claim does not encompass a chemically modified solid polymer.

(iii) A vulcanizable chlorosulfonated polyethylene composition comprising a mixture of chlorosulfonated polyethylene and zinc oxide as vulcanizing agent. Disclosure states that the chlorosulfonated polyethylene is prepared by modification of previously formed solid polyethylene. The original classification of this product is in subclass 333.9 since the product claim encompasses a chemically modified solid polymer, i.e., chlorosulfonated polyethylene.

(5) Lines relative to subclases 501.5

Class 525, subclass 501.5 provides for, e.g., mixtures of phenol-formaldehyde resin (SICP) with an ethylenic agent such as an unsaturated fatty acid glyceride or unsaturated fatty acid derived therefrom, e.g., linseed oil or linseed fatty acid, etc. However, a phenolic SICP (not described as a solid polymer) admixed with a saturated fatty glyceride or saturated fatty acid, e.g., coconut oil or coconut fatty acids, etc., is classified in Class 528, subclass 158.5, since Class 525, subclasses 50+ do not encompass an admixture of a liquid SICP with a chemical treating agent; therefore, when saturated fatty glycerides or saturated fatty acid derived therefrom are reactants in the system of this subclass there must additionally be present a complete system for Class 525, subclass 480.

(6) Lines relative to subclases 517.5

Class 525, subclass 517.5 provides for mixtures of SICP (e.g., aminoplast resin, etc.) with an ethylenic agent such as unsaturated fatty acid glycerides or unsaturated fatty acids derived therefrom, e.g., linseed oil or linseed fatty acid, etc. However, an aminoplast SICP (not described as a solid polymer) admixed with a saturated fatty glyceride or saturated fatty acid, e.g., coconut oil or coconut fatty acid, etc., is placed in Class 528, subclass 245.5 since Class 525, subclasses 50+ do not encompass an admixture of a liquid SICP with a chemical treating agent; therefore, when saturated fatty glycerides or saturated fatty acid derived therefrom are reactants in the system of this subclass there must additionally be a complete system for Class 525, subclass 509.

SUBCLASSES

[List of Patents for class 525 subclass 7]    7ETHYLENICALLY UNSATURATED REACTANT ADMIXED WITH A PREFORMED REACTION PRODUCT DERIVED FROM: (A) AT LEAST ONE POLYCARBOXYLIC ACID, ESTER, OR ANHYDRIDE; (B) AT LEAST ONE FATTY ACID GLYCEROL ESTER, A FATTY ACID OR SALT DERIVED FROM A NATURALLY OCCURRING GLYCERIDE, TALL OIL, OR A TALL OIL FATTY ACID:
 This subclass is indented under Class 520, subclass 1.  Subject matter which are polyester-unsaturated reactant mixtures wherein (a) the polyester is prepared from a polycarboxylic acid, ester, or anhydride, and a polyol, and at least one fatty acid glycerol ester, a fatty acid or salt derived from a naturally occurring gylceride, tall oil, or a fatty acid derived from tall oil, and (b) there is at least one unsaturated reactant other than solely fatty glyceride, an unsaturated fatty acid or salt derived from a naturally occurring fatty glyceride, tall oil, or an unsaturated fatty acid derived from tall oil, or mixtures thereof.
(1) Note. Dehydrated castor oil or dehydrated castor oil fatty acids are treated as if they were unsaturated naturally occurring glyceride or unsaturated fatty acids derived from naturally occurring fatty glycerides.
(2) Note. A buffering agent to improve storage stability is regarded as a catalytic agent and therefore treated as specified material.

SEE OR SEARCH CLASS:

520Synthetic Resins or Natural Rubbers,   the Glossary, for definitions of the terms "specified material" and "fatty acid".
  
[List of Patents for class 525 subclass 7.1]    7.1Mixed in the presence of a specified material:
 This subclass is indented under subclass 7.  Subject matter wherein a specified material is present.

SEE OR SEARCH CLASS:

520Synthetic Resins or Natural Rubbers,   the Glossary, for a definition of the term "specified material".
  
[List of Patents for class 525 subclass 7.2]    7.2Mixed with silicon-containing reactant or polymer derived therefrom:
 This subclass is indented under subclass 7.  Subject matter wherein there is additionally present a silicon-containing reactant or a silicon-containing solid polymer, SICP, or SPFI therefrom.
  
[List of Patents for class 525 subclass 7.3]    7.3Mixed with aldehyde or derivative as reactant or polymer derived therefrom:
 This subclass is indented under subclass 7.  Subject matter wherein there is additionally present an aldehyde or derivative as reactant or a SP, SICP, or SPFI therefrom.

SEE OR SEARCH CLASS:

520Synthetic Resins or Natural Rubbers,   the Glossary, for definitions of the terms "aldehyde" and "aldehyde derivative".
  
[List of Patents for class 525 subclass 7.4]    7.4Mixed with previously formed solid polymer or SPFI:
 This subclass is indented under subclass 7.  Subject matter wherein there is additionally present another SP or SPFI system.
  
[List of Patents for class 525 subclass 8]    8ETHYLENICALLY UNSATURATED REACTANT ADMIXED WITH A PREFORMED REACTION PRODUCT DERIVED FROM: (A) AT LEAST ONE POLYCARBOXYLIC ACID, ESTER, OR ANHYDRIDE; (B) AT LEAST ONE POLYHYDROXY COMPOUND AND; (C) AT LEAST ONE NATURAL RESIN, PROTEIN OR BIOLOGICALLY ACTIVE POLYPEPTIDE, OR CARBOHYDRATE OR DERIVATIVE:
 This subclass is indented under Class 520, subclass 1.  Subject matter wherein an ethylenically unsaturated reactant is admixed with a preformed polyester formed from a polyol; polycarboxylic acid, ester, or anhydride; and a natural resin, protein, biologically active polypeptide, carbohydrate, or derivative.

SEE OR SEARCH THIS CLASS, SUBCLASS:

54.1+,for a system under Class 525, subclass 50 containing chemically combined protein or biologically active polypeptide and a polyester or polyester forming SPFI system.
54.2+,for a preformed solid polyester (or polyester derived from ethylenic reactants only) chemically treated with a carbohydrate or derivative.
54.3+,for a previously formed solid polyester containing chemically combined carbohydrate admixed with a SP, SICP, or chemical treating agent.
54.4+,for a system under Class 525, subclass 50 containing chemically combined natural resin or derivative and a polyester or polyester forming SPFI system.
54.5+,for a system under Class 525, subclass 50 containing chemically combined coal, bituminous material or fatty still residue and a polyester or polyester forming SPFI system.

SEE OR SEARCH CLASS:

520Synthetic Resins or Natural Rubbers,   the Glossary, for definitions of the terms "natural resin derivative", "protein", "biologically active polypeptide", and "carbohydrate derivative".
527Synthetic Resins or Natural Rubbers,   100+ for polyesters containing chemically bound: cellular material derived from plants or animals; 200+ for protein or biologically active polypeptide; 300+ for carbohydrate or derivative; 400+ for lignin or tannin; 500+ for coal or bituminous material; 600+ for natural resin.
  
[List of Patents for class 525 subclass 10]    10ETHYLENICALLY UNSATURATED REACTANT ADMIXED WITH EITHER (A) A POLYMER DERIVED FROM A SATURATED DI- OR HIGHER ESTER OF A POLYCARBOXYLIC ACID AS SOLE REACTANT, OR (B) REACTION PRODUCT OF ONLY POLYCARBOXYLIC ACIDS OR ANHYDRIDES WITH ONLY COMPOUNDS HAVING AT LEAST TWO HYDROXY GROUPS AT LEAST ONE OF WHICH IS SATURATED AND WHEREIN THE REACTION PRODUCT FORMED IS NOT AFTERTREATED PRIOR TO ADMIXTURE WITH THE UNSATURATED REACTANT EXCEPT WITH A POLYCARBOXYLIC ACID POLYCARBOXYLIC ACID ANHYDRIDE, OR A POLYOL, AND WHEREIN NO SOLID POLYMER DERIVED FROM ETHYLENIC REACTANTS ONLY IS MIXED THEREWITH:
 This subclass is indented under Class 520, subclass 1.  Subject matter under involving a polymer derived from nonethylenic di- or higher esters of a polycarboxylic acid as sole reactant, or the reaction product of only polycarboxylic acids or anhydrides with only compounds having at least two hydroxy groups, at least one of which is saturated, mixed with at least one ethylenically unsaturated reactant and wherein the polymer or reaction product formed from the di- or higher ester or from the polycarboxylic acid or anhydride and polyhydroxy compound is not aftertreated prior to mixing with the unsaturated reactant except with a polycarboxylic acid, polycarboxylic acid anhydride, or a polyhydroxy compound, and wherein no solid polymer derived from ethylenic reactants only is mixed therein; processes of preparing or reacting the above mixtures and compositions resulting from the mixing or reacting processes.
(1) Note. Included herein are all polyester-unsaturated reactant mixtures defined above except those cases in which the document specified that a mere diester is formed.
(2) Note. Excluded from this subclass is a mixture of a polymer derived from an unsaturated carboxylic acid ester as sole reactant, e.g., diallyl phthalate, diallyl maleate, etc., and an ethylenic reactant.
(3) Note. Excluded from this and the indented subclasses are those unsaturated reactants which have been prereacted and are part of a specified polymer-forming system (e.g., liquid reaction product of unsaturated diisocyanate and a polyol, etc.).

SEE OR SEARCH THIS CLASS, SUBCLASS:

55+,for a solid polymer derived from ethylenic monomers only mixed with the polyester-unsaturated reactant mixture.
242+,for a mixture of ethylenic reactant with a polymer formed of ethylenic reactants only.
418+,for those instances wherein the polyester is treated with reactants other than those specified in the title of this subclass if a solid polymer is formed.

SEE OR SEARCH CLASS:

528Synthetic Resins or Natural Rubbers,   for those instances wherein the polyester is treated with reactants other than those specified in the title of this subclass if the polyester is not a solid.
  
[List of Patents for class 525 subclass 11]    11Mixed in presence of specified material or a polymerizable composition contains a specified material:
 This subclass is indented under subclass 10.  Subject matter wherein a polymer derived from a di- or higher ester of a polycarboxylic acid as sole reactant or derived from a polycarboxylic acid or anhydride and polyhydroxy compound is mixed with an ethylenic reactant in the presence of a specified material which is not a reactant or wherein the polymerizable polyester-unsaturated reactant composition contains a specified material.

SEE OR SEARCH CLASS:

520Synthetic Resins or Natural Rubbers,   the Glossary, for a definition of the term "specified material". The term as used usually includes solvents, catalysts, inhibitors, accelerators, etc.
  
[List of Patents for class 525 subclass 12]    12Specified material contains boron or silicon atom:
 This subclass is indented under subclass 11.  Subject matter wherein the specified material contains a silicon or boron atom.
  
[List of Patents for class 525 subclass 13]    13Specified material contains metal atom other than from group IA metal atom (Li, Na, K, Rb, Cs, Fr):
 This subclass is indented under subclass 11.  Subject matter wherein the specified material contains a metal atom other than Group IA metal atom (Li, Na, K, Rb, Cs, Fr).
  
[List of Patents for class 525 subclass 14]    14Material contains group IB metal atom (Cu, Ag, Au):
 This subclass is indented under subclass 13.  Subject matter wherein the specified material contains a Group IB metal atom (Cu, Ag, Au).
  
[List of Patents for class 525 subclass 15]    15Material contains group IIB metal atom (Zn, Cd, Hg) or IIIA metal atom (Al, Ga, In, Tl):
 This subclass is indented under subclass 13.  Subject matter wherein the specified material contains a Group IIB or IIIA metal atom (Zn, Cd, Hg, Al, Ga, In, Ti).
  
[List of Patents for class 525 subclass 16]    16Material contains group VB metal atom (V, Nb, Ta):
 This subclass is indented under subclass 13.  Subject matter wherein the specified material contains a Group VB metal atom (V, Nb, Ta).
  
[List of Patents for class 525 subclass 17]    17Material contains group VIII metal atom (Fe, Co, Ni, Ru, Rh, Pd, Os, Ir, Pt):
 This subclass is indented under subclass 13.  Subject matter wherein the specified material contains a Group VIII metal atom (Fe, Co, Ni, Ru, Rh, Pd, Os, Ir, Pt).
  
[List of Patents for class 525 subclass 18]    18Material contains group IVA metal atom (Ge, Sn, Pb):
 This subclass is indented under subclass 13.  Subject matter wherein the specified material contains a Group IVA metal atom (Ge, Sn, Pb).
  
[List of Patents for class 525 subclass 19]    19Material contains group IIA metal atom (Be, Mg, Ca, Sr, Ba, Ra):
 This subclass is indented under subclass 13.  Subject matter wherein the specified material contains a Group IIA metal atom (Be, Mg, Ca, Sr, Ba, Ra).
  
[List of Patents for class 525 subclass 20]    20Specified material contains phosphorus atom:
 This subclass is indented under subclass 11.  Subject matter wherein the specified material contains phosphorus atom.
  
[List of Patents for class 525 subclass 21]    21Specified material contains ketone group:
 This subclass is indented under subclass 11.  Subject matter wherein the specified material contains a ketone group.

SEE OR SEARCH CLASS:

520Synthetic Resins or Natural Rubbers,   the Glossary, for a definition of the term "ketone".
  
[List of Patents for class 525 subclass 22]    22Specified material contains an aldehyde or derivative thereof:
 This subclass is indented under subclass 11.  Subject matter wherein the specified material contains an aldehyde group or is a derivative thereof.

SEE OR SEARCH CLASS:

520Synthetic Resins or Natural Rubbers,   the Glossary for a definition of the term "aldehyde derivative".
  
[List of Patents for class 525 subclass 23]    23Specified material contains sulfur atom:
 This subclass is indented under subclass 11.  Subject matter wherein the specified material contains a sulfur atom.
  
[List of Patents for class 525 subclass 24]    24Sulfur is part of heterocyclic ring:
 This subclass is indented under subclass 23.  Subject matter wherein a sulfur atom is present as part of a heterocyclic ring.
  
[List of Patents for class 525 subclass 25]    25Specified material contains nitrogen atom
 This subclass is indented under subclass 11.  Specified material contains nitrogen atom: Subject matter wherein the specified material contains a nitrogen atom.
  
[List of Patents for class 525 subclass 26]    26Nitrogen is part of heterocyclic ring:
 This subclass is indented under subclass 26.  Subject matter wherein a nitrogen atom is part of a heterocyclic ring.
  
[List of Patents for class 525 subclass 27]    27Specified material contains a peroxy group, i.e., -O-O-:
 This subclass is indented under subclass 11.  Subject matter wherein the specified material contains a peroxy group, i.e., -O-O-.
  
[List of Patents for class 525 subclass 28]    28Mixed with -N C=X reactant or polymer derived therefrom (X is chalcogen):
 This subclass is indented under subclass 10.  Subject matter wherein a polymer derived from di- or higher ester of polycarboxylic acid as sole reactant or derived from polycarboxylic acid or anhydride and polyhydroxy compound is mixed with an ethylenic reactant and, additionally, is mixed with a -N C=X reactant or polymer derived thereof (X is chalcogen).
(1) Note. The term -N C=X reactant includes blocked or masked isocyanates.
(2) Note. Included herein are polyester unsaturated monomer mixtures which are aftertreated with an isocyanate reactant.

SEE OR SEARCH THIS CLASS, SUBCLASS:

395,for a discussion of the term -N C=X reactant, which includes blocked or masked isocyanates.
440.01,for those instances wherein a solid polyester is reacted with an isocyanate prior to mixing with an unsaturated reactant.
  
[List of Patents for class 525 subclass 29]    29Mixed with silicon-containing reactant or polymer derived therefrom:
 This subclass is indented under subclass 10.  Subject matter wherein a polymer derived from a di- or higher ester of polycarboxylic acid as sole reactant or derived from polycarboxylic acid or anhydride and polyhydroxy compound is mixed with an ethylenic reactant and is additionally mixed with a silicon-containing reactant or polymer derived therefrom.
  
[List of Patents for class 525 subclass 30]    30Mixed with a solid polymer or specified intermediate condensation product derived from at least one amine-, N-C(=X)- or N-S (-O)- containing reactant and at least one aldehyde or aldehyde-type reactant (X is chalcogen):
 This subclass is indented under subclass 10.  Subject matter wherein a polymer derived from a di- or higher ester of polycarboxylic acid as sole reactant or derived from polycarboxylic acid or anhydride and polyhydroxy compound is mixed both with an ethylenic reactant and with an amine and/or reactant containing a N or N moiety (X is chalcogen) and an aldehyde or aldehyde-type reactant or reaction product thereof.

SEE OR SEARCH CLASS:

520Synthetic Resins or Natural Rubbers,   the Glossary, for a definition of the terms "amine", "aldehyde", or "aldehyde-type".
  
[List of Patents for class 525 subclass 31]    31Mixed with an 1,2-epoxy compound containing more than one 1,2-epoxy group per mole or polymer derived therefrom:
 This subclass is indented under subclass 10.  Subject matter wherein a polymer derived from a di- or higher ester of polycarboxylic acid as sole reactant or derived from polycarboxylic acid or anhydride and polyhydroxy compound is mixed with an ethylenic reactant and additionally is mixed with an epoxy compound containing more than one 1,2-epoxy group per mole or polymer derived therefrom.
  
[List of Patents for class 525 subclass 32]    32Mixed with a phenolic reactant and an aldehyde or aldehyde-type reactant or reaction product thereof:
 This subclass is indented under subclass 10.  Subject matter wherein a polymer derived from a di- or higher ester of a polycarboxylic acid as sole reactant or derived from polycarboxylic acid or anhydride and polyhydroxy compound is mixed with an ethylenic reactant and additionally is mixed with a phenol and an aldehyde or aldehyde-type reactant or the reaction product thereof.

SEE OR SEARCH CLASS:

520Synthetic Resins or Natural Rubbers,   the Glossary, for definitions of the terms "aldehyde", "aldehyde-type", "phenolic reactant", and the definition of "carboxylic acid or derivative" for a discussion of "polycarboxylic".
  
[List of Patents for class 525 subclass 32.1]    32.1Polymer derived from polycarboxylic acid and polyhydroxyl compound is derived from at least one polycarboxylic acid reactant which is a dimer or trimer of an ethylenically unsaturated aliphatic monocarboxylic acid having at least ten carbon atoms; or adducts of said unsaturated monocarboxylic acid with an alpha, beta ethylenically unsaturated carboxylic acid or derivative:
 This subclass is indented under subclass 10.  Subject matter wherein at least a portion of the polycarboxylic acid or anhydride is (a) a dimer or trimer of an ethylenic unsaturated aliphatic monocarboxylic acid having at least ten carbon atoms, or (b) adducts of said unsaturated monocarboxylic acid with an alpha, beta ethylenically unsaturated carboxylic acid or derivative.

SEE OR SEARCH THIS CLASS, SUBCLASS:

168+,for a system under Class 525, subclass 50 wherein the ethylenic group containing polycarboxylic acid or derivative is a dimer or trimer of an ethylenically unsaturated monocarboxylic acid having at least ten carbon atoms since these dimers and trimers are assumed to be ethylenically unsaturated materials unless otherwise specifically described as saturated or hydrogenated so as to substantially remove all residual unsaturation.

SEE OR SEARCH CLASS:

520Synthetic Resins or Natural Rubbers,   the Glossary, under "fatty acid" for terms used in this subclass.
  
[List of Patents for class 525 subclass 32.2]    32.2Ethylenic reactant or polymer derived from polycarboxylic acid or anhydride and polyol is derived from a carbohydrate or derivative:
 This subclass is indented under subclass 10.  Subject matter wherein a carbohydrate or derivative is chemically incorporated into the system either as the ethylenic reactant, or as part of a polymer derived from a polycarboxylic acid or anhydride polyol, and a carbohydrate.

SEE OR SEARCH CLASS:

526Synthetic Resins or Natural Rubbers,   subclasses 238.2+ for a polymer produced from an ethylenic monomer having carbohydrate or derivative chemically bonded thereto.
527Synthetic Resins or Natural Rubbers,   subclasses 300+ for polyester resins containing chemically bound carbohydrate or derivatives.
  
[List of Patents for class 525 subclass 33]    33Polymer derived from polycarboxylic acid and polyhydroxy compound is derived from at least one polycarboxylic acid containing at least three carboxyl groups or more than one anhydride group:
 This subclass is indented under subclass 10.  Subject matter wherein a polymer derived from a polycarboxylic acid or anhydride and polyhydroxy compound is derived from at least one polycarboxylic acid containing at least three carboxyl groups or more than one anhydride group.
(1) Note. Included here also is a polycarboxylic acid containing an anhydride and a carboxylic acid.
  
[List of Patents for class 525 subclass 34]    34Polymer derived from polyhydroxy reactant and polycarboxylic acid is derived from at least one reactant containing at least three hydroxyl groups:
 This subclass is indented under subclass 10.  Subject matter wherein a polymer derived from a polycarboxylic acid or anhydride and polyhydroxy compound is derived from at least one polyhydroxy compound containing at least three hydroxyl groups.
  
[List of Patents for class 525 subclass 35]    35Polymer derived from polycarboxylic acid or anhydride and polyhydroxy compound is derived from at least two polycarboxylic acid reactants or two polycarboxylic acid anhydrides or mixture thereof:
 This subclass is indented under subclass 10.  Subject matter wherein a polymer derived from polycarboxylic acid or anhydride and polyhydroxy compound is derived from at least two polycarboxylic acid reactants or anhydride reactants or a mixture thereof.
  
[List of Patents for class 525 subclass 36]    36At least one of said polycarboxylic acid reactants or anhydrides contains ethylenic unsaturation:
 This subclass is indented under subclass 35.  Subject matter wherein at least one of the polycarboxylic acid or anhydride reactants contains ethylenic unsaturation.
  
[List of Patents for class 525 subclass 37]    37Polymer mixed with unsaturated reactant containing phosphorus atom:
 This subclass is indented under subclass 36.  Subject matter wherein the unsaturated reactant mixed with the polyester contains phosphorus.
  
[List of Patents for class 525 subclass 38]    38Polymer mixed with unsaturated reactant containing nitrogen atom:
 This subclass is indented under subclass 36.  Subject matter wherein the unsaturated reactant mixed with the polyester contains nitrogen.
  
[List of Patents for class 525 subclass 39]    39Polymer mixed with unsaturated reactant containing carboxylic acid, ester, salt, or anhydride group:
 This subclass is indented under subclass 36.  Subject matter wherein the unsaturated reactant mixed with the polyester is a carboxylic acid, ester, salt, or anhydride.
  
[List of Patents for class 525 subclass 40]    40Polymer mixed with unsaturated reactant containing aryl ring:
 This subclass is indented under subclass 36.  Subject matter wherein the unsaturated reactant mixed with the polyester contains an aryl ring (e.g., styrene, etc.).
  
[List of Patents for class 525 subclass 41]    41Polymer derived from polycarboxylic acid or anhydride and polyhydroxy compound is derived from at least two polyhydroxy compounds:
 This subclass is indented under subclass 10.  Subject matter wherein a polymer derived from polycarboxylic acid or anhydride and polyhydroxy compound is derived from at least two polyhydroxy compounds.
  
[List of Patents for class 525 subclass 42]    42Polymer derived from polycarboxylic acid or anhydride and polyhydroxy compound is derived from polyhydroxy compound containing ether linkage:
 This subclass is indented under subclass 10.  Subject matter wherein a polymer derived from a polycarboxylic acid or anhydride and polyhydroxy compound is derived from a polyhydroxy compound containing at least one ether linkage (e.g., hydroxy terminated low molecular weight polyethylene oxide, etc.).
  
[List of Patents for class 525 subclass 43]    43Polymer derived from polycarboxylic acid or anhydride, and polyhydroxy compound wherein at least one of the reactants contains ethylenic unsaturation:
 This subclass is indented under subclass 10.  Subject matter wherein a solid polymer derived from polycarboxylic acid or anhydride and polyhydroxy compound is derived from at least one reactant containing ethylenic unsaturation.
  
[List of Patents for class 525 subclass 44]    44Polymer mixed with unsaturated reactant containing two or more unsaturated groups:
 This subclass is indented under subclass 43.  Subject matter wherein the unsaturated reactant mixed with the polyester contains at least two unsaturated groups.
  
[List of Patents for class 525 subclass 45]    45Wherein unsaturated reactant contains three nitrogen atoms in the same ring:
 This subclass is indented under subclass 44.  Subject matter wherein the unsaturated reactant mixed with the polyester contains three nitrogen atoms in the same ring.
  
[List of Patents for class 525 subclass 46]    46Polymer mixed with unsaturated reactant containing nitrogen atom:
 This subclass is indented under subclass 43.  Subject matter wherein the unsaturated reactant mixed with polyester contains a nitrogen atom.
  
[List of Patents for class 525 subclass 47]    47Unsaturated reactant contains nitrogen heterocycle:
 This subclass is indented under subclass 46.  Subject matter wherein an unsaturated nitrogen heterocyclic reactant is mixed with the polyester (e.g., N-Vinyl pyrolidone, etc.).
  
[List of Patents for class 525 subclass 48]    48Polymer mixed with unsaturated carboxylic acid, ester, salt, or anhydride:
 This subclass is indented under subclass 43.  Subject matter wherein the unsaturated reactant mixed with polyester is a carboxylic acid, ester, salt, or anhydride.
  
[List of Patents for class 525 subclass 49]    49Polymer mixed with unsaturated aromatic compound:
 This subclass is indented under subclass 43.  Subject matter wherein the unsaturated reactant mixed with the polyester contains an aryl ring (e.g., styrene, etc.).
  
[List of Patents for class 525 subclass 50]    50MIXING OF TWO OR MORE SOLID POLYMERS; MIXING OF SOLID POLYMER OR SPECIFIED INTERMEDIATE CONDENSATION PRODUCT WITH SPECIFIED INTERMEDIATE CONDENSATION PRODUCT OR SPECIFIED POLYMER-FORMING INGREDIENTS; MIXING OF SPECIFIED INTERMEDIATE CONDENSATION PRODUCT WITH AN ETHYLENIC AGENT; MIXING OF SOLID POLYMER WITH A CHEMICAL TREATING OR ETHYLENIC AGENT; OR PROCESSES OF FORMING OR REACTING; OR THE RESULTANT PRODUCT OF ANY OF THE ABOVE OPERATIONS:
 This subclass is indented under Class 520, subclass 1.  Subject matter which involves the mixing of a solid polymer with solid polymers, with a specified intermediate condensation product (SICP), with specified polymer-forming ingredients (SPFI), with an ethylenic reactant, or with a chemical treating agent; or the mixing of a specified intermediate condensation product with a diverse specified intermediate condensation product, with specified polymer-forming ingredients, or with an ethylenic reactant; or processes of producing, or the resultant product of any of the above mixtures. The above combinations may be tabulated in a more easily recognizable form as follows in (1) Note below.
(1) Note. Combinations proper for this subclass and its indents:
1. P1+P2
2. P + SICP
3. P + SPFI
4. P + ER
P = Solid polymer
5. P + CTA
6. SICP1+SICP2
7. SICP + SPFI
8. SICP + ER, wherein
P = Solid Polymer
SICP = Specified intermediate condensation product
SPFI = Specified polymer-forming ingredients
ER = Ethylenic reactant
CTA = Chemical treating agent
(2) Note. A polymer is a solid when so stated or when it is described in one or more of the following terms. This list is not to be taken as limiting a solid to the enumerated terms. Other terms in patents not noted below may be interpreted as being solid when proper description is given therein:
1. coagulated
2. brittle
3. ductile
4. Durran m.p.
5. elastic
6. elastomer
7. fiber-forming
8. friable
9. fusible
10. gum
11. meltable
12. melting point
13 millable
14. molten
15. pliable
16. powder
17. rubber
18. rubbery
19. thermoplastic
20. thermoset
A wax is not considered to be a solid even if defined by one or more of the above terms.
(3) Note. Specified intermediate condensation product is limited to the following:
(A) Reactants noted in categories 1-3 below either as enumerated or with additional reactants, with the proviso that at least one of the reactants noted in 1-3 must be saturated, or (B) to the materials having the formulas set forth in categories 4-6. It must be remembered