Manual of U.S. Patent Classification
as of June 30, 2000

Class
528
SYNTHETIC RESINS OR NATURAL RUBBERS -- PART OF THE CLASS 520 SERIES

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Subclass		Title
ClassTitle		===> SYNTHETIC RESINS OR NATURAL RUBBERS -- PART OF THE CLASS 520 SERIES
		This Class 528 is considered to be an integral part of Class 520 (see the Class 520 schedule for the position of this Class in schedule hierarchy). This Class retains all pertinent definitions and class lines of Class 520
		SYNTHETIC RESINS (Class 520, Subclass 1)
1		. FROM PLANT MATERIAL OF UNKNOWN CONSTITUTION
2		. . From cashew material with a sulfur-containing reactant
3		. . From cashew material with an aldehyde or derivative
4		. FROM BORON REACTANT HAVING AT LEAST ONE BORON TO HYDROGEN OR BORON TO CARBON BOND
5		. . Boron reactant contains a silicon atom
6		. . Boron reactant contains a phosphorus atom
7		. . Boron reactant contains a nitrogen atom
8		. . Boron reactant contains a boron atom bonded to at least one atom of oxygen
9		. FROM HEAVY METAL OR ALUMINUM REACTANT HAVING AT LEAST ONE HYDROGEN-TO-HEAVY METAL OR -ALUMINUM BOND OR AT LEAST ONE CARBON-TO-HEAVY METAL OR -ALUMINUM BOND
10		. FROM SILICON REACTANT HAVING AT LEAST ONE SILICON-TO-HYDROGEN OR -CARBON BOND
12		. . Polymerizing in the pressence of a specified material other than a reactant
13		. . . Material is a boron-containing material
14		. . . Material is a metal-containing material
15		. . . . Material contains a Group VIII metal atom
16		. . . . Material contains a Group IIIA metal
17		. . . . Material contains a Group IVB metal atom
18		. . . . Material contains a Group IVA metal atom
19		. . . . Material contains a heavy metal atom
20		. . . Material contains an alcohol, alcoholate, or ether compound
21		. . . Material is a nitrogen-containing compound
22		. . . . Nitrogen-containign silicon compound
23		. . . Material contains a phosphorus or sulfur atom
24		. . . Material contains a compound having an O-O group, e.g., peroxide, etc.
25		. . With organic silicon-free reactant
26		. . . Organic Si-free reactant is a carboxylic acid or derivative
26.5		. . . . Reactant which is a fatty acid glycerol ester, a fatty acid or salt derived from a naturally occurring glyceride, tall oil, or a fatty acid derived from tall oil
27		. . . Organic Si-free reactant contains a heterocyclic ring
28		. . . Organic Si-free reactant is a nitrogen-containing compound
29		. . . Organic Si-free reactant is an alcohol or alcoholate
30		. . From silicon-containing reactant having at least one polyvalent atom other than carbon, oxygen, or nitrogen
31		. . Silicon reactant contains a silicon-to-hydrogen bond
32		. . Silicon reactant contains an ethylenically unsaturated group
33		. . Silicon reactant contains two or more silicon atoms
34		. . . With silicon reactant containing a single silicon atom
35		. . . Silicon reactamt contains only carbon atom, only a carbon chain, or chain of carbon and oxygen atoms only between two silicon atoms
36		. . . Silicon reactant contains at least one halogen atom bonded to a carbon atom which carbon atom is not an acyl halide carbon atom
37		. . . Reactant contains a silicon atom as a ring member of a cyclic compound
38		. . Silicon reactant contains an amine nitrogen atom
39		. . With silicon reactant which is free of any silicon to carbon bond
40		. . Silicon reactant contains a fused, bridged, or cycloaliphatic ring
41		. . Silicon containing carboxylic acid or derivative or from a silicon derivative of a nonsilicon containing carboxylic acid
42		. . Silicon reactant contains at least one halogen atom bonded to a carbon atom which carbon atom is not an acyl halide carbon atom
43		. . Silicon reactant contains an aryl group
44		. FROM REACTANT HAVING AT LEAST ONE -N=C=X GROUP (WHEREIN X IS A CHALCOGEN ATOM) AS WELL AS PRECURSORS THEREOF, E.G., BLOCKED ISOCYANATE, ETC.
45		. . From at least one blocked -N=C=X group
48		. . Process of polymerizing in the presence of a specified material other than reactant
49		. . . Material contains only one -C-XH,-C-C(=X)-XH or carbon to -NH or HNH group
50		. . . Material contains compound having a -O-O- group, e.g., peroxide, etc.
51		. . . Material contains a phosphorus atom
52		. . . Material is organic nitrogen-containing compoud
53		. . . . Organic nitrogen compound contains a nitrogen atom bonded to three atoms or carbon
54		. . . . . Nitrogen compound wherein nitrogen atom is bonded to three atoms of carbon contains a bridged- or fused-ring system, e.g., triethylene diamine, etc.
55		. . . Material contains at least one metal atom
56		. . . . Material contains a transition metal atom
57		. . . . Material contains at least one group IA or group IIA metal atom
58		. . . . Material contains at least one atom of tin
59		. . From N=C=X reactant having at least two -C-NH-C(=X)- groups
60		. . . With reactant compound containing three or more XH, -C(=X)-XH, -NH, =NH, or HNH groups or combination thereof
61		. . . With organic nitrogen reactant which contains two NH, =NH, or HNH groups
62		. . . . Organic NH, =NH, or HNH nitrogen-containing reactant contains a heterocyclic ring
63		. . . . Organic NH, =NH, HNH nitrogen reactant contains at least one halogen atom
64		. . . . Organic NH, =NH or HNH nitrogen reactant contains a carbocyclic or aromatic ring
65		. . . With reactant having two -XH groups
66		. . . . Reactant having two -XH groups contains two or more -C-X-C- groups or two or more carboxylic acid ester groups
67		. . From two or more reactants containing -N=C=X groups
68		. . With organic compound reactant containing at least two NH, HNH or =NH groups and wherein the reactant composition is devoid of -C-XH, -C(=X)XH or anhydride
69		. . Reactant contains a single -N=C=X group
70		. . Reactant contains a fluorine atom
71		. . Reactant contains at least one salt group, e.g., quaternary ammonium salt, etc.
72		. . Reactant contains at least one phosphorus atom
73		. . Reactant contains at least one heterocyclic ring
74		. . Reactant contains at least one bridged- or fused-ring system
74.5		. . Reactant which is a fatty acid glycerol ester, a fatty acid or salt derived from a naturally occurring glyceride, tall oil, or a fatty acid derived from tall oil
75		. . Reactant contains at least one ethylenically unsaturated group
76		. . With ether or thioether compound containing at least two -C-X-C- groups
77		. . . Ether or thioether compound contains three or more -XH groups
78		. . . Ether or thioether contains at least one nitrogen atom other than as a C NH, C=NH, or C-N(H)-H
79		. . . Ether or thioether contains a carbocyclic or aromatic group
80		. . With reactant compound containing at least two -C-C(=X)-X-C groups and which compound is devoid of C-NH, C=NH or C-N(H)-H groups
81		. . . Reactant compound which contains at least two -C-C(=X)-X-C groups contains three or more XH groups
82		. . . Reactant which contains at least two -C-C(=X)-X-C groups contains tertiary nitrogen atom
83		. . . Reactant which contains at least two -C-C(=X)-X-C groups has been derived from only a dicarboxylic acid or derivative and only a dihydric alcohol or alcoholate derivative
84		. . With reactant containing at least two -C-C(=X)-X groups
85		. . With reactant containing at least two -XH groups
86		. FROM PHENOL, PHENOL ETHER, OR INORGANIC PHENOLATE
87		. . From 1,2-epoxy-containing phenolic reactant or with 1,2-epoxy-containing reactant
88		. . . Polymerizing in the presence of a specified material other than reactant
89		. . . . Material contains a phosphorus atom
90		. . . . Material contains a sulfur atom
91		. . . . Material contains a boron atom
92		. . . . Material contains a polyvalent metal atom
93		. . . . Material contains a nitrogen compound
94		. . . . . Nitrogen material contains a nitrogen atom as part of a heterocyclic ring
95		. . . . Material contains a Group IA metal atom (Li, Na, K, Rb, Cs, Fr)
96		. . . Phenolic reactant contains a heterocyclic group other than a 1,2-epoxy group per se
97		. . . Phenolic reactant contains a fused-or bridged-ring other than as a 1,2 epoxy group fused to carbocyclic or aromatic ring
98		. . . Phenolic reactant contains at least three distinct aromatic or carbocyclic rings or mixtures thereof
99		. . . Phenolic reactant contains at least one nitrogen, phosphorus, or sulfur atom
100		. . . Phenolic reactant contains a carboxylic acid or carboxylic acid derivative thereof
101		. . . Phenolic reactant contains ethylenic unsaturation or contains a 1,2-epoxy group fused to a carbocyclic ring
102		. . . Phenolic reactant contains a halogen atom directly bonded to a nuclear carbon atom of the aryl-oxygen group
103		. . . Two or more 1,2-epoxy reactants
103.5		. . . . 1,2-epoxy reactant having at least one carboxylic ester group, e.g., epoxidized linseed oil, etc.
104		. . . Two or more phenolic reactants
105		. . . Phenolic reactant contains only one, 1,2-epoxy group
106		. . . With at least one nonepoxy or nonphenolic reactant
107		. . . . Non-1,2-epoxy or nonphenolic reactant is an aldehyde or derivative
108		. . . . Non-1,2-epoxy, or nonphenolic reactant is a phosphorus-containing material
109		. . . . Non-1,2-epoxy, or nonphenolic reactant is a sulfur-containing material
110		. . . . Non-1,2-epoxy, or nonphenolic reactant is an alcohol, inorganic alcoholate, or ether
111		. . . . . Nitrogen-containing alcohol, inorganic alcoholate, or ether
111.3		. . . . Non 1,2-epoxy or nonphenolic reactant which is a dimer or trimer of an ethylenically unsaturated aliphatic monocarboxylic acid having at least ten carbon atoms; or adduct of said unsaturated monocarboxylic acid with an alpha, beta ethylenically unsaturated carboxylic acid or derivative
111.5		. . . . Non 1,2-epoxy or nonphenolic reactant which is a fatty acid glycerol ester, a fatty acid or salt derived from a naturally occurring glyceride, tall oil, or a fatty acid derived from tall oil
112		. . . . Non-1,2-epoxy or nonphenolic reactant is a carboxylic acid, salt thereof, or carboxylic acid anhydride
113		. . . . . With nitrogen-containing reactant
114		. . . . . Nitrogen-containing carboxylic acid, salt thereof, or anhydride, or nitrogen-containing salt of a non-nitrogen-containing carboxylic acid
115		. . . . . At least two carboxylic acids, salts thereof, or carboxylic acid anhydrides, or mixtures thereof
116		. . . . Non-1,2-epoxy or nonphenolic reactant contains a heterocyclic ring
117		. . . . . Five-membered heterocyclic ring contains at least one nitrogen atom as a ring member
118		. . . . . Six-membered heterocyclic ring contains at least one nitrogen atom as a ring member
119		. . . . Non-1,2-epoxy or nonphenolic reactant contains one or more nitrogen atoms
120		. . . . . Two or more nitrogen-containing reactants
121		. . . . . Nitrogen reactant contains at least one amino-nitrogen atom
122		. . . . . . Nitrogen reactant having at least one amino-nitrogen atom contains a cycloaliphatic ring
123		. . . . . . Nitrogen reactant having at least one amino-nitrogen atom contains three or more nitrogen atoms
124		. . . . . . Nitrogen reactant having at least one amino-nitrogen atom contains at least one aryl group
125		. . From ketone-containing phenolic reactant or with ketone-containing reactant
126		. . . Polymerizing in the presence of a specified material other than reactant
127		. . . With nonketone- or nonphenolic-aldehyde or derivative as a reactant
128		. . . With nonphenolic or nonketone reactant
129		. . With aldehyde or derivative
137		. . . Polymerizing in the presence of a specified material other than a reactant
138		. . . . Material contains a boron atom
139		. . . . Material contains an aluminum or heavy metal atom
140		. . . . Material contains a Group IIA metal atom (Be, Mg, Ca, Sr, Ba, Ra)
141		. . . . Material contains a phosphorus atom
142		. . . . Material contains an alcohol, inorganic alcoholate, or ether
143		. . . . Material contains a sulfur atom
144		. . . . Material contains a carboxylic acid, anhydride thereof, ester thereof, or salt thereof
145		. . . . Material contains a nitrogen compound
146		. . . . . Nitrogen-containing material contains a nitrogen atom directly bonded to a carbon atom
147		. . . . Material contains a Group IA metal atom (Li, Na, K, Rb, Cs, Fr)
148		. . . Phenolic reactant contains a carboxylic acid or carboxylic acid salt group
149		. . . Phenolic reactant contains a nitrogen atom
150		. . . Phenolic reactant contains a sulfur atom
151		. . . Phenolic reactant contains a halogen atom directly bonded to a nuclear carbon atom of the benzene-oxygen group
152		. . . Phenolic reactant contains an ethylenically unsaturated group
153		. . . Phenolic reactant contains at least two ring moieties (includes fused or bridged ring system)
154		. . . Phenol ether
155		. . . Two distinct phenolic reactants or two or more hydroxy groups or phenate groups bonded to nuclear carbon atoms of the same benzene ring
156		. . . Two or more aldehydes or derivatives
157		. . . Aldehyde or derivative is ethylenically unsaturated
158		. . . With at least one nonaldehyde phosphorus- or sulfur-containing reactant
158.5		. . . With a reactant which is a fatty acid glycerol ester, a fatty acid or salt derived from a naturally occurring glyceride, tall oil, or a fatty acid derived from tall oil
159		. . . With an ethylenically unsaturated reactant
160		. . . With reactant having only carbon and hydrogen atoms or only carbon, hydrogen, and halogen atoms
161		. . . With at least one reactant which is other than an aldehyde or derivative and which contains a carboxylic acid, anhydride thereof, salt thereof, or ester thereof
162		. . . With nitrogen-containing reactant
163		. . . . Nitrogen-containing reactant is a heterocyclic ring compound containing at least one nitrogen atom as a ring member or is nitrogen-containing aromatic compound
164		. . . . Nitrogen-containing reactant contains the -N-C(=O)-N- group
165		. . . Aldehyde or derivative is sole coreactant
166		. . Aluminum- or heavy metal-containing reactant
167		. . Phosphorus-containing reactant
168		. . . Nitrogen-containing reactant
169		. . . Halogen-containing reactant
170		. . Imide-containing reactant
171		. . Sulfur reactant contains sulfur directly bonded to oxygen
172		. . . Nitrogen-containing compound is a reactant other than wherein nitrogen is solely present as a carboxylic acid derivative
173		. . . Carboxylic acid or derivative is a reactant
174		. . . Halogen-containing material is a reactant
175		. . . . Reactant contains a (O=)S(=O)-halo group
176		. . With polycarboxylic acid or derivative as reactant
179		. . . Polymerizing in the presence of a specified material other than a reactant and other than Group IA or Group IIA material as sole metal atom
180		. . . . Material contains a metal atom
181		. . . . . At least one transition metal atom
182		. . . . Material is a nitrogen-containing compound
183		. . . Nitrogen reactant contains at least one amino-nitrogen atom
184		. . . . Nitrogen reactant having at least one amino-nitrogen atom contains a carboxylic acid group or is a derivative thereof
185		. . . . Phenolic reactant contains at least two aryl rings and two diverse phenolic to oxygen bonds
186		. . . . Nitrogen reactant contains at least three amino-nitrogen atoms bonded to one or more carbon atoms
187		. . . . . At least one reactant contains three or more carboxylic acid groups or is derivative thereof
188		. . . . Reactant contains three or more carboxylic acid groups or is derivative thereof
189		. . . . . Two or more polycarboxylic acids or derivatives or mixtures thereof
190		. . . Reactant contains a fused- or bridged-ring other than solely as a polycarboxylic acid anhydride group
191		. . . Reactant contains a halogen atom other than solely as halogen atom bonded to a carbonyl group
192		. . . Ethylenically unsaturated reactant
193		. . . Two or more phenolic reactants
194		. . . Two or more polycarboxylic acids or derivatives as reactants
195		. . . Reactant is a nonphenolic compound having at least two hydroxyl groups or salts thereof
196		. . With reactant having halo-C(=O)-halo, halo-C(=O)-O-, or -O-C(=O)-O- group
198		. . . Polymerizing in the presence of a specified material other than a reactant and other than Group IA or Group IIA material as sole metal atom
199		. . . . Material is a nitrogen-containing compound
200		. . . . Material contains a metal atom
201		. . . Fused- or bridged-ring-containing reactant other than solely as a polycarboxylic acid anhydride group
202		. . . Reactant contains a halogen atom other than solely as halogen bonded to a carbonyl group
203		. . . Reactant contains a nitrogen atom
204		. . . Two or more phenolic reactants
205		. . Ethylenically unsaturated reactant
206		. . Phenolic reactant contains at least one carboxylic acid group or is derivative thereof
207		. . . Polymerizing in the presence of a specified material other than a reactant and other than Group IA or Group IIA material as sole metal atom
208		. . . Nitrogen-containing reactant
209		. . . With nonphenolic compound having at least two hydroxyl groups or salts thereof as reactant
210		. . Phenolic reactant contains a nitrogen atom
211		. . With nitrogen-containing reactant
212		. . Phenolic reactant contains a single phenolic -OH group or a single inorganic phenolate thereof
214		. . . Polymerizing in the presence of a specified material other than a reactant and other than Group IA or Group IIA material as sole metal atom
215		. . . . Material is a nitrogen-containing compound
216		. . . . . Nitrogen-containing material is a heterocyclic compound containing at least one nitrogen atom as a ring member
217		. . . . Material contains a metal atom
218		. . . Two or more phenolic reactants each of which contains a single -OH group or inorganic phenolate group, or with a compound containing a single ether oxygen atom bonded to two discrete aryl rings
219		. . Phenolic reactant contains two or more phenolic -OH groups, or two or more inorganic phenolate groups, or mixtures thereof
220		. FROM KETONE OR KETENE REACTANT
222		. . Polymerizing in the presence of a specified material other than a reactant
223		. . . Material contains a phosphorus or sulfur atom
224		. . . Material contains a nitrogen-containing compound
225		. . . Material contains a boron or polyvalent metal atom
226		. . With sulfur-containing reactant
227		. . With aldehyde or derivative thereof as reactant
228		. . With nitrogen-containing reactant
229		. . . Nitrogen-containing reactant contains an amine group
230		. FROM ALDEHYDE OR DERIVATIVE THEREOF AS REACTANT
232		. . Polymerizing in the presence of a specified material other than a reactant
233		. . . Material contains a metal atom
234		. . . . Material contains a transition metal atom
235		. . . . . Transition metal atom is a Group VIII metal atom
236		. . . . Material contains a heavy metal atom
237		. . . . . Heavy metal is a Group IVA metal atom (Ge, Sn, Pb)
238		. . . . Material contains an aluminum atom
239		. . . . Material contains a Group IA metal atom (Li, Na, K, Rb, Cs, Fr)
240		. . . Material contains a boron atom
241		. . . . Boron trihalide or organic complex thereof
242		. . . Material contains a phosphorus or sulfur atom
243		. . . Material contains nitrogen as part of a nitrogen-containing compound
244		. . Fluorine- or phosphorus-containing reactant
245		. . From glyoxal or compound having two or more -C(=O)-H groups per se
245.3		. . With a polycarboxylic acid reactant which is a dimer or trimer of an ethylenically unsaturated aliphatic monocarboxylic acid having at least ten carbon atoms; or adduct of said unsaturated monocarboxylic acid with an alpha, beta ethylenically unsaturated carboxylic acid or derivative
245.5		. . With a reactant which is a fatty acid glycerol ester, a fatty acid or salt derived from a naturally occurring glyceride, tall oil, or a fatty acid derived from tall oil
246		. . Ethylenically unsaturated reactant other than unsaturation solely in heterocyclic ring containing only oxygen as hetero atom
247		. . With hydrocarbon or halogenated hydrocarbon reactant
248		. . With heterocyclic reactant which is not an aldehyde or derivative
249		. . . Nonaldehyde or nonaldehyde derivative heterocyclic compound contains an oxygen atom as a ring member of the heterocyclic compound
250		. . . . Heterocyclic compound contains a 1,2-epoxy ring
251		. . . Nonaldehyde or nonaldehyde derivative heterocyclic compound contains a sulfur atom as a ring member of the heterocyclic compound
252		. . . Nonaldehyde or nonaldehyde derivative heterocyclic compound contains only two nitrogen atoms as ring members of the heterocyclic compound
253		. . . Nonaldehyde or nonaldehyde derivative heterocyclic compound contains two or more heterocyclic rings and includes shared hetero atoms in a fused or bridged ring system
254		. . . Nonaldehyde or nonaldehyde derivative heterocyclic reactant contains a six membered ring having three nitrogen and three carbon atoms as ring members
255		. . . . Sulfur-containing heterocyclic compound having three nitrogen and three carbon atoms
256		. . . . With reactant containing >NC(=O)- or >N-C(=S)- group, e.g., urea, etc.
257		. . . . With reactant containing at least one noncyclic carbon atom bonded to at least three atoms of nitrogen, e.g., dicyanodiamide, etc.
258		. . . . Six-membered heterocycle is other than melamine per se or methylol derivative thereof
259		. . With >N-C(=X)-N< -containing reactant wherein X is a chalcogen atom
260		. . . Two or more >N-C(=X)-N< -containing reactants
261		. . . At least one reactant is a nonaldehyde or nonaldehyde derivative, non- >N C(=X)-N< -containing reactant
262		. . . . Nonaldehyde reactant, non->N-C(=X)-N< reactant contains a nitrogen atom
263		. . . . . Non- >N-C(=X)-N< nitrogen reactant is an organic compound containing two or more amino groups
264		. . . >N-C(=X)-N< reactant is other than urea or thiourea per se
265		. . Sulfur-containing reactant
266		. . With nonaldehyde or nonaldehyde derivative nitrogen-containing compound
267		. . . Nitrogen-containing nonaldehyde or nonaldehyde derivative contains a nitrile group
268		. . . Nitrogen-containing nonaldehyde or nonaldehyde derivative contains three or more nitrogen atoms bonded to the same carbon atom, e.g., dicyanodiamide, etc.
269		. . . Nitrogen-containing nonaldehyde or nonaldehyde derivative contains a single organic amine group
270		. . From aldehyde or aldehyde derivative as sole reactant (includes copolymer of only aldehydes or aldehyde derivatives)
271		. FROM CARBOXYLIC ACID OR DERIVATIVE THEREOF
272		. . From di- or higher ester of a polycarboxylic acid as sole reactant, or from a polycarboxylic acid or derivative with a compound containing two or more hydroxyl groups or salts thereof
274		. . . Polymerizing in the presence of a specified material other than reactant
275		. . . . Material contains a metal atom
276		. . . . . Metal atom in elemental form
277		. . . . . Material contains a transition metal atom
278		. . . . . . Metal atom has atomic number of 57-71, or 89 and higher
279		. . . . . . Material contains a Group IVB metal atom (Ti, Zr, Hf)
280		. . . . . . Material contains a Group VIII metal atom (Fe, Co, Ni, Ru, Rh, Pd, Os, Ir, Pt)
281		. . . . . Material contains a Group IIB metal atom (Zn, Cd, Hg)
282		. . . . . Material contains a Group IIIA metal atom (Al, Ga, In, Tl)
283		. . . . . Material contains a Group IVA metal atom (Ge, Sn, Pb)
284		. . . . . . Material contains a lead atom
285		. . . . . Material contains a Group VA metal atom (As, Sb, Bi)
286		. . . . Material contains a phosphorus atom
287		. . . Phosphorus-containing reactant
288		. . . Nitrogen-containing reactant
289		. . . . Final product contains nitrogen atom as a member of a heterocyclic ring
290		. . . . Sulfur-containing reactant
291		. . . . Nitrogen-containing polyhydroxy compound or salt of a nitrogen-containing polyhydroxy compound
292		. . . . Nitrogen-containing polycarboxylic acid or nitrogen-containing polycarboxylic acid derivative
293		. . . Sulfur-containing reactant
294		. . . . Sulfur-containing polyhydroxy compound or salt of a sulfur-containing polyhydroxy compound
295		. . . . Sulfur-containing aryl compound
295.3		. . . Polycarboxylic acid reactant which is a dimer or trimer of an ethylenically unsaturated aliphatic monocarboxylic acid having at least ten carbon atoms; or adduct of said unsaturated monocarboxylic acid with an alpha, beta ethylenically unsaturated carboxylic acid or derivative
295.5		. . . Reactant which is a fatty acid glycerol ester, a fatty acid or salt derived from a naturally occurring glyceride, tall oil, or a fatty acid derived from tall oil
296		. . . Reactant contains three or more carboxylic acid groups or is derivative thereof
297		. . . 1,2-epoxy containing reactant
298		. . . Fused- or bridged-ring-containing reactant other than solely as cyclic acid anhydride group
299		. . . Halogen-containing reactant other than solely as halogen atom bonded to a carbonyl group
300		. . . Polyhydroxy-containing compound or salt thereof having an ether-oxygen atom as reactant
301		. . . . Acyclic ether-oxygen compound
302		. . . Two or more carboxylic acid or derivatives or mixtures thereof
303		. . . . Ethylenically unsaturated carboxylic acid or ethylenically unsaturated derivative
304		. . . . . Aryl-containing carboxylic acid or derivative of an aryl-containing carboxylic acid
305		. . . . Each of the carboxylic acids or derivatives contains an aryl group
306		. . . Ethylenically unsaturated carboxylic acid or derivative of an ethylenically unsaturated carboxylic acid
307		. . . Cycloaliphatic ring-containing reactant (other than aryl)
308		. . . Aryl-containing carboxylic acid or derivative of an aryl-containing dicarboxylic acid
308.1		. . . . Polyethylene Terephthalate per se
308.2		. . . . . Physically after-treated solid polymer
308.3		. . . . . Processes of preparing
308.4		. . . . . . In presence of hydrocarbon, steam or water
308.5		. . . . . . At least two claimed distinct temperature or pressure gradients
308.6		. . . . Contains terephthalic acid or substituted forms thereof
308.7		. . . . . Derived from at least two reactants simultaneously containing a C-OH group
308.8		. . . . . Processes of preparing
309.1		. . . . . . At least two claimed distinct temperature or pressure gradients
310		. . From imide- or lactam-containing compound, or from an amino-nitrogen containing carboxylic acid, or derivative of an amino-nitrogen-containing carboxylic acid
312		. . . Polymerizing in the presence of a specified material other than reactant
313		. . . . Material contains a phosphorus or sulfur atom
314		. . . . Material contains a nitrogen atom as a ring member of a heterocyclic ring other than where nitrogen heterocycle is solely part of a lactam ring
315		. . . . Material is a nitrogen-containing compound other than a lactam
316		. . . . Material is a ketone, aldehyde, or derivative
317		. . . . Material is an alcohol, ether, or inorganic alcoholate
318		. . . . Material is a carboxylic acid, acyl halide thereof, ester thereof, or lactone thereof
319		. . . . Material contains a polyvalent metal atom
320		. . . . Material contains a silicon atom
321		. . . Phosphorus- or sulfur-containing reactant
322		. . . Imide-containing reactant
323		. . . Lactam-containing reactant
324		. . . . With two or more reactants one of which is a carboxylic acid or derivative and one of which is an organic compound containing at least two amino nitrogen atoms
325		. . . . Two or more lactam reactant or with an amino-containing carboxylic acid or derivative of an amino-containing carboxylic acid
326		. . . . Lactam reactant contains 3-5 or 12 or more carbon atoms in the lactam ring
327		. . . Heterocyclic reactant or a reactant which contains a nitrogen atom bonded directly to another nitrogen atom
328		. . . From N-C-(C=O)-OH containing reactant or acid derivative thereof, e.g., alpha amino acid, etc.
329.1		. . . With two or more reactants one of which is a carboxylic acid or derivative thereof which is devoid of an amine group and one reactant which is a polyamine which is devoid of a carboxylic acid group or carboxylic acid derivative group
330		. . . Cycloaliphatic ring-containing reactant
331		. . . Aryl-containing reactant
332		. . With organic amine, or from organic amine salt of a carboxylic acid
335		. . . From dicarboxylic acid or derivative thereof and an organic amine, or from an organic amine salt of a dicarboxylic acid
336		. . . . Polymerizing in the presence of a specified material
337		. . . . Phosphorus- or sulfur-containing reactant
338		. . . . From at least two dicarboxylic acids or derivatives or mixtures thereof and at least two organic polyamines
339		. . . . From at least two dicarboxylic acids or derivatives or mixtures thereof
339.3		. . . . . Polycarboxylic acid reactant which is a dimer or trimer of an ethylenically unsaturated aliphatic monocarboxylic acid having at least ten carbon atoms; or adduct of said unsaturated monocarboxylic acid with an alpha, beta ethylenically unsaturated carboxylic acid or derivative
339.5		. . . . . Reactant which is a fatty acid glycerol ester, a fatty acid or salt derived from a naturally occurring glyceride, tall oil, or a fatty acid derived from tall oil
340		. . . . From at least two organic polyamines
341		. . . . Heterocyclic-containing reactant other than cyclic acid anhydride as sole hetero ring
342		. . . . From reactant containing at least three amino-nitrogen-containing groups or with a carboxylic acid containing at least three carboxylic acid groups or deivatives thereof
343		. . . . Carboxylic acid containing (C=O)-(C=O) or is a derivative thereof, e.g., oxalic acid, etc.
344		. . . . Bridged- or fused-ring-containing reactant other than as anhydride fused to a nonfused- or bridged-ring system
345		. . . . Ethylenically unsaturated reactant
346		. . . . Cycloaliphatic ring-containing reactant
347		. . . . Aryl ring-containing reactant
348		. . . . . All reactants contain at least one aryl ring
349		. . . . Reactant contains three carbon atoms directly bonded to a single carbon atom
350		. . . From carboxylic acid having three or more carboxylic acid groups or derivatives thereof, and an organic amine, or from an organic amine salt of a tri-or higher carboxylic acid
351		. . . . Polymerizing in the presence of a specified material other than a reactant
352		. . . . Phosphorus- or sulfur-containing reactant
353		. . . . Carboxylic acid contains at least four carboxylic acid groups or is a derivative of a carboxylic acid containing at least four carboxylic groups
354		. . From compound having -C-C(=O)-O-C- group as part of a heterocyclic ring, e.g., lactone, etc.
355		. . . Polymerizing in the presence of a specified material other than a reactant
356		. . . . Material contains a phosphorus or sulfur atom
357		. . . . Material contains a metal atom
358		. . . . . Material contains a Group IA (Li, Na, K, Rb, Cs, Fr) or Group IIA metal atom (Be, Mg, Ca, Sr, Ba, Ra)
359		. . . Heterocyclic ring compound is a four-membered ring containing one oxygen and three carbon atoms -C-C(=O)-O-C-
360		. . From sulfur-containing carboxylic acid
361		. . From ether, metal alcoholate, or alcohol group-containing carboxylic acid; or from a derivative of a carboxylic acid which derivative contains an ether, metal alcoholate, or alcohol group
362		. . From organic nitrile group-containing compound
363		. . With nitrogen-containing reactant
364		. . With sulfur-containing reactant
365		. . With reactant containing at least one cyclic ether group
366		. . . Contains a single 1,2-epoxy group
367		. FROM REACTANT HAVING A NITROGEN ATOM DIRECTLY BONDED TO THE CARBON ATOM OF A CARBONYL GROUP, I.E., N-C(=O)-
368		. . Polymerizing in the presence of a specified material other than a reactant
369		. . N-C(=O)-OH containing reactant or ester, salt, anhydride, or acyl halide thereof
370		. FROM REACTANT HAVING A HALOGEN ATOM OR OXYGEN SINGLE BONDED TO A CARBONYL GROUP, E.G., HALO-C(=O)-, -O-C(=O)-O, ETC.
371		. . Polymerizing in the presence of a specified material other than a reactant
372		. . Reactant contains a halogen atom directly bonded to a carbon atom of a carbonyl group, i.e., halo-C(=O)-
373		. FROM SULFUR-CONTAINING REACTANT
374		. . From mercaptan or mercaptide-containing reactant
375		. . . Two or more mercaptan or mercaptide reactants, or mixture thereof, or with additional reactant-containing sulfur
376		. . . With ethylenically unsaturated reactant
377		. . From heterocyclic compound containing a sulfur atom as a ring member
378		. . . Polymerizing in the presence of a specified material other than a reactant
379		. . . . Material contains a Group IA (Li, Na, K, Rb, Cs, Fr) or Group IIA metal atom (Be, Mg, Ca, Sr, Ba, Ra)
380		. . . Heterocyclic reactant contains a ring composed solely of carbon atoms and a single sulfur atom
381		. . From inorganic sulfur-containing reactant
382		. . . Sulfur dioxide is a reactant
383		. . . . Polymerizing in the presence of a specified material other than a reactant
384		. . . . . Material contains a metal atom
385		. . . . . Material is free oxygen, peroxide, air, or ozone
386		. . . . With reactant containing only hydrogen and carbon atoms
387		. . . Carbon disulfide or hydrogen sulfide is reactant
388		. . . Inorganic sulfur reactant contains at least one metal atom or contains an ammonium ion
389		. . . Elemental sulfur is reactant
390		. . From organic reactant containing a -C(=S)-group
391		. . From organic reactant containing a sulfur to oxygen bond, e.g., -S(=O), etc.
392		. POLYMER OF AN ETHYLENICALLY UNSATURATED REACTANT WITH A SATURATED REACTANT
393		. . At least one reactant contains a three-membered heterocyclic ring having two carbon and one oxygen atoms, e.g., oxirane, etc.
394		. FROM BORON-CONTAINING REACTANT
395		. FROM ALUMINUM- OR HEAVY METAL-CONTAINING REACTANT
396		. FROM HYDROCARBON REACTANT
397		. FROM HALOGENATED HYDROCARBON REACTANT
398		. FROM PHOSPHORUS-CONTAINING REACTANT
399		. . Phosphorus reactant contains a nitrogen atom
400		. . With alcohol or alcoholate reactant
401		. FROM FLUORINE-CONTAINING REACTANT
402		. . Fluorine reactant contains a heterocyclic ring having a -C-O-C- group as part of the hetero ring atoms
403		. FROM HETEROCYCLIC REACTANT CONTAINING AS RING ATOMS OXYGEN, SELENIUM OR TELLURIUM, E.G., EPOXY, ETC.
405		. . With reactant which is devoid of a heterocyclic ring containing oxygen, selenium or tellurium atoms as ring members
406		. . . Heterocyclic reactant contains at least two heterocyclic rings having oxygen, selenium or tellurium as ring members
407		. . . . Reactant which is devoid of a heterocyclic ring containing oxygen, selenium or tellurium as ring atoms, contains at least one nitrogen atom
408		. . Polymerizing in the presence of a specified material other than a reactant
409		. . . Material contains a metal atom
410		. . . . Material contains a transition metal atom
411		. . . . . Material contains a Group IVB metal atom (Ti, Zr, Hf)
412		. . . . . Material contains a Group VIII metal atom (Fe, Co, Ni, Pd, Ru, Os, Ir, Rh, Pt)
413		. . . . Material contains a Group IIA metal atom (Be, Mg, Ca, Sr, Ba, Ra)
414		. . . . Material contains a Group IIB metal atom (Zn, Cd, Hg)
415		. . . . . Material contains at least two diverse metal atoms either in the same compound or in different compounds
416		. . . . Material contains a Group IIIA metal atom (Al, Ga, In, Tl)
417		. . Reactant contains a single hetero-atom in a ring and at least three carbon atoms, e.g., oxetane, etc.
418		. . Reactant contains two or more rings each of said rings having a single oxygen and two carbon atoms
419		. . Two or more heterocyclic reactants containing rings of one oxygen and two carbon atoms
420		. . Reactant has a three-membered ring of oxygen and two carbon and contains a nitrogen atom
421		. . Reactant has a three-membered ring containing oxygen and two carbon atoms, i.e., 1,2-epoxy
422		. NITROGEN-CONTAINING REACTANT
423		. . Reactant contains nitrogen as a ring member of a heterocyclic ring
424		. . . Heterocyclic nitrogen-containing ring contains a single atom of nitrogen and two atoms of carbon as ring members
425		. FROM ORGANIC OXYGEN-CONTAINING REACTANT
480		. TREATING POLYMER CONTAINING MATERIAL OR TREATING A SOLID POLYMER OR A RESINIFIABLE INTERMEDIATE CONDENSATION PRODUCT
481		. . Treating at O Deg C (32 Deg F) or below, or at 200 Deg C (392 Deg F) or above
482		. . Contacting with ion exchange material or solid sorbent
483		. . Contacting with exteriorly produced specified gaseous agent other than drying, blanket, or carrier gas
484		. . Preventing or removing reactor or processing equipment buildup
485		. . Contacting with aluminum or heavy metal material
486		. . Contacting with carboxylic acid, salt, or anhydride thereof
487		. . Contacting with sulfur or phosphorus-containing material
488		. . Contacting with alkali (Li, Na, K, Rb, Cs, Fr) or alkaline earth (Be, Mg, Ca, Sr, Ba) metal or compound thereof
489		. . . Oxide or hydroxide
490		. . Contacting with specified element or with specified inorganic compound other than water, elemental nitrogen, air and the inert gases (Group VIII A)
491		. . Contacting with organic material
492		. . . Nitrogen containing
493		. . . Aldehyde or ketone
494		. . . Ether
495		. . . Alcohol
496		. . . . Contains one to four carbon atoms
497		. . . Hydrocarbon
498		. . . . Acyclic
499		. . Contacting with water
500		. . . Steam stripping or steam distilling
501		. . With distilling or pressured reduction step to remove material, e.g., flashing, autorefrigeration, etc.
502R		. . Physical treatment
502A		. . . Filtration
502B		. . . Stretching to alter polymer properties by elongation
502C		. . . Compression or pressure treatment
502D		. . . Centrifuge separation
502E		. . . Spray drying or atomization
502F		. . . Shearing to change polymer particle size or to change polymer properties
503		. . Temperature maintaining, heating or cooling
		******************************
		CROSS-REFERENCE ART COLLECTIONS
		******************************
901		ROOM TEMPERATURE CURABLE SILICON-CONTAINING POLYMER
902		PARTICULATE MATERIAL PREPARED FROM AN ISOCYANATE
903		POLYMERIZING OR PROCESSING AN ISOCYANATE UNDER SUBSTANTIALLY ANHYDROUS CONDITIONS
904		ISOCYANATE POLYMER HAVING STATED HYDROPHILIC OR HYDROPHOBIC PROPERTY
905		POLYMER PREPARED FROM ISOCYANATE REACTANT HAS ADHESIVE PROPERTY
906		FIBER OR ELASTOMER PREPARED FROM AN ISOCYANATE REACTANT
		SUBCLASS 950 WILL BE THE GENERIC LOCATION FOR THE 520 SERIES THAT PERTAINS TO MORE THAN ONE OF THE INDIVIDUAL SERIES OTHER THAN THOSE CONCERNED WITH COMPOSITIONS, E.G., 523, 524, ETC.
950		POLYMERS USEFUL FOR REPLACING HARD ANIMAL TISSUES, E.G., DENTURES, BONES, ETC.
930		GUAYULE RUBBER
931		PHYSICAL TREATMENT OF NATURAL RUBBER OR NATURAL RUBBER CONTAINING MATERIAL OR CHEMICAL TREATMENT OF NON-RUBBER PORTION THEREOF, E.G., EXTRACTION OF RUBBER FROM MILK WEED, ETC.
932		. Protein removal or conversion
933		. Resin removal or conversion
934		. Latex
935		. . Preserving or stabilizing
936		. . Coagulating
937		. . Concentrating, e.g., creaming, etc.

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Last Modified: 6 October 2000