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Class   528SYNTHETIC RESINS OR NATURAL RUBBERS -- PART OF THE CLASS 520 SERIES
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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)
[List of Pre Grant Publications for class 528 subclass 1][List of Patents for class 528 subclass 1]1 Subclass 1 indent level is 1 FROM PLANT MATERIAL OF UNKNOWN CONSTITUTION
[List of Pre Grant Publications for class 528 subclass 4][List of Patents for class 528 subclass 4]4 Subclass 4 indent level is 1 FROM BORON REACTANT HAVING AT LEAST ONE BORON TO HYDROGEN OR BORON TO CARBON BOND
 [List of Pre Grant Publications for class 528 subclass 9][List of Patents for class 528 subclass 9]9 Subclass 9 indent level is 1 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
[List of Pre Grant Publications for class 528 subclass 10][List of Patents for class 528 subclass 10]10 Subclass 10 indent level is 1 FROM SILICON REACTANT HAVING AT LEAST ONE SILICON-TO-HYDROGEN OR -CARBON BOND
[List of Pre Grant Publications for class 528 subclass 12][List of Patents for class 528 subclass 12]12 Subclass 12 indent level is 2 Polymerizing in the pressence of a specified material other than a reactant
[List of Pre Grant Publications for class 528 subclass 25][List of Patents for class 528 subclass 25]25 Subclass 25 indent level is 2 With organic silicon-free reactant
 [List of Pre Grant Publications for class 528 subclass 30][List of Patents for class 528 subclass 30]30 Subclass 30 indent level is 2 From silicon-containing reactant having at least one polyvalent atom other than carbon, oxygen, or nitrogen
 [List of Pre Grant Publications for class 528 subclass 31][List of Patents for class 528 subclass 31]31 Subclass 31 indent level is 2 Silicon reactant contains a silicon-to-hydrogen bond
 [List of Pre Grant Publications for class 528 subclass 32][List of Patents for class 528 subclass 32]32 Subclass 32 indent level is 2 Silicon reactant contains an ethylenically unsaturated group
[List of Pre Grant Publications for class 528 subclass 33][List of Patents for class 528 subclass 33]33 Subclass 33 indent level is 2 Silicon reactant contains two or more silicon atoms
 [List of Pre Grant Publications for class 528 subclass 38][List of Patents for class 528 subclass 38]38 Subclass 38 indent level is 2 Silicon reactant contains an amine nitrogen atom
 [List of Pre Grant Publications for class 528 subclass 39][List of Patents for class 528 subclass 39]39 Subclass 39 indent level is 2 With silicon reactant which is free of any silicon to carbon bond
 [List of Pre Grant Publications for class 528 subclass 40][List of Patents for class 528 subclass 40]40 Subclass 40 indent level is 2 Silicon reactant contains a fused, bridged, or cycloaliphatic ring
 [List of Pre Grant Publications for class 528 subclass 41][List of Patents for class 528 subclass 41]41 Subclass 41 indent level is 2 Silicon containing carboxylic acid or derivative or from a silicon derivative of a nonsilicon containing carboxylic acid
 [List of Pre Grant Publications for class 528 subclass 42][List of Patents for class 528 subclass 42]42 Subclass 42 indent level is 2 Silicon reactant contains at least one halogen atom bonded to a carbon atom which carbon atom is not an acyl halide carbon atom
 [List of Pre Grant Publications for class 528 subclass 43][List of Patents for class 528 subclass 43]43 Subclass 43 indent level is 2 Silicon reactant contains an aryl group
[List of Pre Grant Publications for class 528 subclass 44][List of Patents for class 528 subclass 44]44 Subclass 44 indent level is 1 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.
 [List of Pre Grant Publications for class 528 subclass 45][List of Patents for class 528 subclass 45]45 Subclass 45 indent level is 2 From at least one blocked -N=C=X group
[List of Pre Grant Publications for class 528 subclass 48][List of Patents for class 528 subclass 48]48 Subclass 48 indent level is 2 Process of polymerizing in the presence of a specified material other than reactant
[List of Pre Grant Publications for class 528 subclass 59][List of Patents for class 528 subclass 59]59 Subclass 59 indent level is 2 From N=C=X reactant having at least two -C-NH-C(=X)- groups
 [List of Pre Grant Publications for class 528 subclass 67][List of Patents for class 528 subclass 67]67 Subclass 67 indent level is 2 From two or more reactants containing -N=C=X groups
 [List of Pre Grant Publications for class 528 subclass 68][List of Patents for class 528 subclass 68]68 Subclass 68 indent level is 2 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
 [List of Pre Grant Publications for class 528 subclass 69][List of Patents for class 528 subclass 69]69 Subclass 69 indent level is 2 Reactant contains a single -N=C=X group
 [List of Pre Grant Publications for class 528 subclass 70][List of Patents for class 528 subclass 70]70 Subclass 70 indent level is 2 Reactant contains a fluorine atom
 [List of Pre Grant Publications for class 528 subclass 71][List of Patents for class 528 subclass 71]71 Subclass 71 indent level is 2 Reactant contains at least one salt group, e.g., quaternary ammonium salt, etc.
 [List of Pre Grant Publications for class 528 subclass 72][List of Patents for class 528 subclass 72]72 Subclass 72 indent level is 2 Reactant contains at least one phosphorus atom
 [List of Pre Grant Publications for class 528 subclass 73][List of Patents for class 528 subclass 73]73 Subclass 73 indent level is 2 Reactant contains at least one heterocyclic ring
 [List of Pre Grant Publications for class 528 subclass 74][List of Patents for class 528 subclass 74]74 Subclass 74 indent level is 2 Reactant contains at least one bridged- or fused-ring system
 [List of Pre Grant Publications for class 528 subclass 74.5][List of Patents for class 528 subclass 74.5]74.5 Subclass 74.5 indent level is 2 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
 [List of Pre Grant Publications for class 528 subclass 75][List of Patents for class 528 subclass 75]75 Subclass 75 indent level is 2 Reactant contains at least one ethylenically unsaturated group
[List of Pre Grant Publications for class 528 subclass 76][List of Patents for class 528 subclass 76]76 Subclass 76 indent level is 2 With ether or thioether compound containing at least two -C-X-C- groups
[List of Pre Grant Publications for class 528 subclass 80][List of Patents for class 528 subclass 80]80 Subclass 80 indent level is 2 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
 [List of Pre Grant Publications for class 528 subclass 84][List of Patents for class 528 subclass 84]84 Subclass 84 indent level is 2 With reactant containing at least two -C-C(=X)-X groups
 [List of Pre Grant Publications for class 528 subclass 85][List of Patents for class 528 subclass 85]85 Subclass 85 indent level is 2 With reactant containing at least two -XH groups
[List of Pre Grant Publications for class 528 subclass 86][List of Patents for class 528 subclass 86]86 Subclass 86 indent level is 1 FROM PHENOL, PHENOL ETHER, OR INORGANIC PHENOLATE
[List of Pre Grant Publications for class 528 subclass 87][List of Patents for class 528 subclass 87]87 Subclass 87 indent level is 2 From 1,2-epoxy-containing phenolic reactant or with 1,2-epoxy-containing reactant
[List of Pre Grant Publications for class 528 subclass 88][List of Patents for class 528 subclass 88]88 Subclass 88 indent level is 3 Polymerizing in the presence of a specified material other than reactant
 [List of Pre Grant Publications for class 528 subclass 96][List of Patents for class 528 subclass 96]96 Subclass 96 indent level is 3 Phenolic reactant contains a heterocyclic group other than a 1,2-epoxy group per se
 [List of Pre Grant Publications for class 528 subclass 97][List of Patents for class 528 subclass 97]97 Subclass 97 indent level is 3 Phenolic reactant contains a fused-or bridged-ring other than as a 1,2 epoxy group fused to carbocyclic or aromatic ring
 [List of Pre Grant Publications for class 528 subclass 98][List of Patents for class 528 subclass 98]98 Subclass 98 indent level is 3 Phenolic reactant contains at least three distinct aromatic or carbocyclic rings or mixtures thereof
 [List of Pre Grant Publications for class 528 subclass 99][List of Patents for class 528 subclass 99]99 Subclass 99 indent level is 3 Phenolic reactant contains at least one nitrogen, phosphorus, or sulfur atom
 [List of Pre Grant Publications for class 528 subclass 100][List of Patents for class 528 subclass 100]100 Subclass 100 indent level is 3 Phenolic reactant contains a carboxylic acid or carboxylic acid derivative thereof
 [List of Pre Grant Publications for class 528 subclass 101][List of Patents for class 528 subclass 101]101 Subclass 101 indent level is 3 Phenolic reactant contains ethylenic unsaturation or contains a 1,2-epoxy group fused to a carbocyclic ring
 [List of Pre Grant Publications for class 528 subclass 102][List of Patents for class 528 subclass 102]102 Subclass 102 indent level is 3 Phenolic reactant contains a halogen atom directly bonded to a nuclear carbon atom of the aryl-oxygen group
[List of Pre Grant Publications for class 528 subclass 103][List of Patents for class 528 subclass 103]103 Subclass 103 indent level is 3 Two or more 1,2-epoxy reactants
 [List of Pre Grant Publications for class 528 subclass 104][List of Patents for class 528 subclass 104]104 Subclass 104 indent level is 3 Two or more phenolic reactants
 [List of Pre Grant Publications for class 528 subclass 105][List of Patents for class 528 subclass 105]105 Subclass 105 indent level is 3 Phenolic reactant contains only one, 1,2-epoxy group
[List of Pre Grant Publications for class 528 subclass 106][List of Patents for class 528 subclass 106]106 Subclass 106 indent level is 3 With at least one nonepoxy or nonphenolic reactant
 [List of Pre Grant Publications for class 528 subclass 107][List of Patents for class 528 subclass 107]107 Subclass 107 indent level is 4 Non-1,2-epoxy or nonphenolic reactant is an aldehyde or derivative
 [List of Pre Grant Publications for class 528 subclass 108][List of Patents for class 528 subclass 108]108 Subclass 108 indent level is 4 Non-1,2-epoxy, or nonphenolic reactant is a phosphorus-containing material
 [List of Pre Grant Publications for class 528 subclass 109][List of Patents for class 528 subclass 109]109 Subclass 109 indent level is 4 Non-1,2-epoxy, or nonphenolic reactant is a sulfur-containing material
[List of Pre Grant Publications for class 528 subclass 110][List of Patents for class 528 subclass 110]110 Subclass 110 indent level is 4 Non-1,2-epoxy, or nonphenolic reactant is an alcohol, inorganic alcoholate, or ether
 [List of Pre Grant Publications for class 528 subclass 111.3][List of Patents for class 528 subclass 111.3]111.3 Subclass 111.3 indent level is 4 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
 [List of Pre Grant Publications for class 528 subclass 111.5][List of Patents for class 528 subclass 111.5]111.5 Subclass 111.5 indent level is 4 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
[List of Pre Grant Publications for class 528 subclass 112][List of Patents for class 528 subclass 112]112 Subclass 112 indent level is 4 Non-1,2-epoxy or nonphenolic reactant is a carboxylic acid, salt thereof, or carboxylic acid anhydride
[List of Pre Grant Publications for class 528 subclass 116][List of Patents for class 528 subclass 116]116 Subclass 116 indent level is 4 Non-1,2-epoxy or nonphenolic reactant contains a heterocyclic ring
[List of Pre Grant Publications for class 528 subclass 119][List of Patents for class 528 subclass 119]119 Subclass 119 indent level is 4 Non-1,2-epoxy or nonphenolic reactant contains one or more nitrogen atoms
[List of Pre Grant Publications for class 528 subclass 125][List of Patents for class 528 subclass 125]125 Subclass 125 indent level is 2 From ketone-containing phenolic reactant or with ketone-containing reactant
[List of Pre Grant Publications for class 528 subclass 129][List of Patents for class 528 subclass 129]129 Subclass 129 indent level is 2 With aldehyde or derivative
[List of Pre Grant Publications for class 528 subclass 137][List of Patents for class 528 subclass 137]137 Subclass 137 indent level is 3 Polymerizing in the presence of a specified material other than a reactant
 [List of Pre Grant Publications for class 528 subclass 148][List of Patents for class 528 subclass 148]148 Subclass 148 indent level is 3 Phenolic reactant contains a carboxylic acid or carboxylic acid salt group
 [List of Pre Grant Publications for class 528 subclass 149][List of Patents for class 528 subclass 149]149 Subclass 149 indent level is 3 Phenolic reactant contains a nitrogen atom
 [List of Pre Grant Publications for class 528 subclass 150][List of Patents for class 528 subclass 150]150 Subclass 150 indent level is 3 Phenolic reactant contains a sulfur atom
 [List of Pre Grant Publications for class 528 subclass 151][List of Patents for class 528 subclass 151]151 Subclass 151 indent level is 3 Phenolic reactant contains a halogen atom directly bonded to a nuclear carbon atom of the benzene-oxygen group
 [List of Pre Grant Publications for class 528 subclass 152][List of Patents for class 528 subclass 152]152 Subclass 152 indent level is 3 Phenolic reactant contains an ethylenically unsaturated group
 [List of Pre Grant Publications for class 528 subclass 153][List of Patents for class 528 subclass 153]153 Subclass 153 indent level is 3 Phenolic reactant contains at least two ring moieties (includes fused or bridged ring system)
 [List of Pre Grant Publications for class 528 subclass 154][List of Patents for class 528 subclass 154]154 Subclass 154 indent level is 3 Phenol ether
 [List of Pre Grant Publications for class 528 subclass 155][List of Patents for class 528 subclass 155]155 Subclass 155 indent level is 3 Two distinct phenolic reactants or two or more hydroxy groups or phenate groups bonded to nuclear carbon atoms of the same benzene ring
 [List of Pre Grant Publications for class 528 subclass 156][List of Patents for class 528 subclass 156]156 Subclass 156 indent level is 3 Two or more aldehydes or derivatives
 [List of Pre Grant Publications for class 528 subclass 157][List of Patents for class 528 subclass 157]157 Subclass 157 indent level is 3 Aldehyde or derivative is ethylenically unsaturated
 [List of Pre Grant Publications for class 528 subclass 158][List of Patents for class 528 subclass 158]158 Subclass 158 indent level is 3 With at least one nonaldehyde phosphorus- or sulfur-containing reactant
 [List of Pre Grant Publications for class 528 subclass 158.5][List of Patents for class 528 subclass 158.5]158.5 Subclass 158.5 indent level is 3 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
 [List of Pre Grant Publications for class 528 subclass 159][List of Patents for class 528 subclass 159]159 Subclass 159 indent level is 3 With an ethylenically unsaturated reactant
 [List of Pre Grant Publications for class 528 subclass 160][List of Patents for class 528 subclass 160]160 Subclass 160 indent level is 3 With reactant having only carbon and hydrogen atoms or only carbon, hydrogen, and halogen atoms
 [List of Pre Grant Publications for class 528 subclass 161][List of Patents for class 528 subclass 161]161 Subclass 161 indent level is 3 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
[List of Pre Grant Publications for class 528 subclass 162][List of Patents for class 528 subclass 162]162 Subclass 162 indent level is 3 With nitrogen-containing reactant
 [List of Pre Grant Publications for class 528 subclass 165][List of Patents for class 528 subclass 165]165 Subclass 165 indent level is 3 Aldehyde or derivative is sole coreactant
 [List of Pre Grant Publications for class 528 subclass 166][List of Patents for class 528 subclass 166]166 Subclass 166 indent level is 2 Aluminum- or heavy metal-containing reactant
[List of Pre Grant Publications for class 528 subclass 167][List of Patents for class 528 subclass 167]167 Subclass 167 indent level is 2 Phosphorus-containing reactant
 [List of Pre Grant Publications for class 528 subclass 170][List of Patents for class 528 subclass 170]170 Subclass 170 indent level is 2 Imide-containing reactant
[List of Pre Grant Publications for class 528 subclass 171][List of Patents for class 528 subclass 171]171 Subclass 171 indent level is 2 Sulfur reactant contains sulfur directly bonded to oxygen
[List of Pre Grant Publications for class 528 subclass 176][List of Patents for class 528 subclass 176]176 Subclass 176 indent level is 2 With polycarboxylic acid or derivative as reactant
[List of Pre Grant Publications for class 528 subclass 196][List of Patents for class 528 subclass 196]196 Subclass 196 indent level is 2 With reactant having halo-C(=O)-halo, halo-C(=O)-O-, or -O-C(=O)-O- group
 [List of Pre Grant Publications for class 528 subclass 205][List of Patents for class 528 subclass 205]205 Subclass 205 indent level is 2 Ethylenically unsaturated reactant
[List of Pre Grant Publications for class 528 subclass 206][List of Patents for class 528 subclass 206]206 Subclass 206 indent level is 2 Phenolic reactant contains at least one carboxylic acid group or is derivative thereof
 [List of Pre Grant Publications for class 528 subclass 210][List of Patents for class 528 subclass 210]210 Subclass 210 indent level is 2 Phenolic reactant contains a nitrogen atom
 [List of Pre Grant Publications for class 528 subclass 211][List of Patents for class 528 subclass 211]211 Subclass 211 indent level is 2 With nitrogen-containing reactant
[List of Pre Grant Publications for class 528 subclass 212][List of Patents for class 528 subclass 212]212 Subclass 212 indent level is 2 Phenolic reactant contains a single phenolic -OH group or a single inorganic phenolate thereof
 [List of Pre Grant Publications for class 528 subclass 219][List of Patents for class 528 subclass 219]219 Subclass 219 indent level is 2 Phenolic reactant contains two or more phenolic -OH groups, or two or more inorganic phenolate groups, or mixtures thereof
[List of Pre Grant Publications for class 528 subclass 220][List of Patents for class 528 subclass 220]220 Subclass 220 indent level is 1 FROM KETONE OR KETENE REACTANT
[List of Pre Grant Publications for class 528 subclass 230][List of Patents for class 528 subclass 230]230 Subclass 230 indent level is 1 FROM ALDEHYDE OR DERIVATIVE THEREOF AS REACTANT
[List of Pre Grant Publications for class 528 subclass 232][List of Patents for class 528 subclass 232]232 Subclass 232 indent level is 2 Polymerizing in the presence of a specified material other than a reactant
 [List of Pre Grant Publications for class 528 subclass 244][List of Patents for class 528 subclass 244]244 Subclass 244 indent level is 2 Fluorine- or phosphorus-containing reactant
 [List of Pre Grant Publications for class 528 subclass 245][List of Patents for class 528 subclass 245]245 Subclass 245 indent level is 2 From glyoxal or compound having two or more -C(=O)-H groups per se
 [List of Pre Grant Publications for class 528 subclass 245.3][List of Patents for class 528 subclass 245.3]245.3 Subclass 245.3 indent level is 2 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
 [List of Pre Grant Publications for class 528 subclass 245.5][List of Patents for class 528 subclass 245.5]245.5 Subclass 245.5 indent level is 2 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
 [List of Pre Grant Publications for class 528 subclass 246][List of Patents for class 528 subclass 246]246 Subclass 246 indent level is 2 Ethylenically unsaturated reactant other than unsaturation solely in heterocyclic ring containing only oxygen as hetero atom
 [List of Pre Grant Publications for class 528 subclass 247][List of Patents for class 528 subclass 247]247 Subclass 247 indent level is 2 With hydrocarbon or halogenated hydrocarbon reactant
[List of Pre Grant Publications for class 528 subclass 248][List of Patents for class 528 subclass 248]248 Subclass 248 indent level is 2 With heterocyclic reactant which is not an aldehyde or derivative
[List of Pre Grant Publications for class 528 subclass 259][List of Patents for class 528 subclass 259]259 Subclass 259 indent level is 2 With >N-C(=X)-N< -containing reactant wherein X is a chalcogen atom
 [List of Pre Grant Publications for class 528 subclass 265][List of Patents for class 528 subclass 265]265 Subclass 265 indent level is 2 Sulfur-containing reactant
[List of Pre Grant Publications for class 528 subclass 266][List of Patents for class 528 subclass 266]266 Subclass 266 indent level is 2 With nonaldehyde or nonaldehyde derivative nitrogen-containing compound
 [List of Pre Grant Publications for class 528 subclass 270][List of Patents for class 528 subclass 270]270 Subclass 270 indent level is 2 From aldehyde or aldehyde derivative as sole reactant (includes copolymer of only aldehydes or aldehyde derivatives)
[List of Pre Grant Publications for class 528 subclass 271][List of Patents for class 528 subclass 271]271 Subclass 271 indent level is 1 FROM CARBOXYLIC ACID OR DERIVATIVE THEREOF
[List of Pre Grant Publications for class 528 subclass 272][List of Patents for class 528 subclass 272]272 Subclass 272 indent level is 2 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
[List of Pre Grant Publications for class 528 subclass 274][List of Patents for class 528 subclass 274]274 Subclass 274 indent level is 3 Polymerizing in the presence of a specified material other than reactant
 [List of Pre Grant Publications for class 528 subclass 287][List of Patents for class 528 subclass 287]287 Subclass 287 indent level is 3 Phosphorus-containing reactant
[List of Pre Grant Publications for class 528 subclass 288][List of Patents for class 528 subclass 288]288 Subclass 288 indent level is 3 Nitrogen-containing reactant
[List of Pre Grant Publications for class 528 subclass 293][List of Patents for class 528 subclass 293]293 Subclass 293 indent level is 3 Sulfur-containing reactant
 [List of Pre Grant Publications for class 528 subclass 295.3][List of Patents for class 528 subclass 295.3]295.3 Subclass 295.3 indent level is 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
 [List of Pre Grant Publications for class 528 subclass 295.5][List of Patents for class 528 subclass 295.5]295.5 Subclass 295.5 indent level is 3 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
 [List of Pre Grant Publications for class 528 subclass 296][List of Patents for class 528 subclass 296]296 Subclass 296 indent level is 3 Reactant contains three or more carboxylic acid groups or is derivative thereof
 [List of Pre Grant Publications for class 528 subclass 297][List of Patents for class 528 subclass 297]297 Subclass 297 indent level is 3 1,2-epoxy containing reactant
 [List of Pre Grant Publications for class 528 subclass 298][List of Patents for class 528 subclass 298]298 Subclass 298 indent level is 3 Fused- or bridged-ring-containing reactant other than solely as cyclic acid anhydride group
 [List of Pre Grant Publications for class 528 subclass 299][List of Patents for class 528 subclass 299]299 Subclass 299 indent level is 3 Halogen-containing reactant other than solely as halogen atom bonded to a carbonyl group
[List of Pre Grant Publications for class 528 subclass 300][List of Patents for class 528 subclass 300]300 Subclass 300 indent level is 3 Polyhydroxy-containing compound or salt thereof having an ether-oxygen atom as reactant
[List of Pre Grant Publications for class 528 subclass 302][List of Patents for class 528 subclass 302]302 Subclass 302 indent level is 3 Two or more carboxylic acid or derivatives or mixtures thereof
 [List of Pre Grant Publications for class 528 subclass 306][List of Patents for class 528 subclass 306]306 Subclass 306 indent level is 3 Ethylenically unsaturated carboxylic acid or derivative of an ethylenically unsaturated carboxylic acid
 [List of Pre Grant Publications for class 528 subclass 307][List of Patents for class 528 subclass 307]307 Subclass 307 indent level is 3 Cycloaliphatic ring-containing reactant (other than aryl)
[List of Pre Grant Publications for class 528 subclass 308][List of Patents for class 528 subclass 308]308 Subclass 308 indent level is 3 Aryl-containing carboxylic acid or derivative of an aryl-containing dicarboxylic acid
[List of Pre Grant Publications for class 528 subclass 310][List of Patents for class 528 subclass 310]310 Subclass 310 indent level is 2 From imide- or lactam-containing compound, or from an amino-nitrogen containing carboxylic acid, or derivative of an amino-nitrogen-containing carboxylic acid
[List of Pre Grant Publications for class 528 subclass 312][List of Patents for class 528 subclass 312]312 Subclass 312 indent level is 3 Polymerizing in the presence of a specified material other than reactant
 [List of Pre Grant Publications for class 528 subclass 321][List of Patents for class 528 subclass 321]321 Subclass 321 indent level is 3 Phosphorus- or sulfur-containing reactant
 [List of Pre Grant Publications for class 528 subclass 322][List of Patents for class 528 subclass 322]322 Subclass 322 indent level is 3 Imide-containing reactant
[List of Pre Grant Publications for class 528 subclass 323][List of Patents for class 528 subclass 323]323 Subclass 323 indent level is 3 Lactam-containing reactant
 [List of Pre Grant Publications for class 528 subclass 327][List of Patents for class 528 subclass 327]327 Subclass 327 indent level is 3 Heterocyclic reactant or a reactant which contains a nitrogen atom bonded directly to another nitrogen atom
 [List of Pre Grant Publications for class 528 subclass 328][List of Patents for class 528 subclass 328]328 Subclass 328 indent level is 3 From N-C-(C=O)-OH containing reactant or acid derivative thereof, e.g., alpha amino acid, etc.
 [List of Pre Grant Publications for class 528 subclass 329.1][List of Patents for class 528 subclass 329.1]329.1 Subclass 329.1 indent level is 3 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
 [List of Pre Grant Publications for class 528 subclass 330][List of Patents for class 528 subclass 330]330 Subclass 330 indent level is 3 Cycloaliphatic ring-containing reactant
 [List of Pre Grant Publications for class 528 subclass 331][List of Patents for class 528 subclass 331]331 Subclass 331 indent level is 3 Aryl-containing reactant
[List of Pre Grant Publications for class 528 subclass 332][List of Patents for class 528 subclass 332]332 Subclass 332 indent level is 2 With organic amine, or from organic amine salt of a carboxylic acid
[List of Pre Grant Publications for class 528 subclass 335][List of Patents for class 528 subclass 335]335 Subclass 335 indent level is 3 From dicarboxylic acid or derivative thereof and an organic amine, or from an organic amine salt of a dicarboxylic acid
 [List of Pre Grant Publications for class 528 subclass 336][List of Patents for class 528 subclass 336]336 Subclass 336 indent level is 4 Polymerizing in the presence of a specified material
 [List of Pre Grant Publications for class 528 subclass 337][List of Patents for class 528 subclass 337]337 Subclass 337 indent level is 4 Phosphorus- or sulfur-containing reactant
 [List of Pre Grant Publications for class 528 subclass 338][List of Patents for class 528 subclass 338]338 Subclass 338 indent level is 4 From at least two dicarboxylic acids or derivatives or mixtures thereof and at least two organic polyamines
[List of Pre Grant Publications for class 528 subclass 339][List of Patents for class 528 subclass 339]339 Subclass 339 indent level is 4 From at least two dicarboxylic acids or derivatives or mixtures thereof
 [List of Pre Grant Publications for class 528 subclass 340][List of Patents for class 528 subclass 340]340 Subclass 340 indent level is 4 From at least two organic polyamines
 [List of Pre Grant Publications for class 528 subclass 341][List of Patents for class 528 subclass 341]341 Subclass 341 indent level is 4 Heterocyclic-containing reactant other than cyclic acid anhydride as sole hetero ring
 [List of Pre Grant Publications for class 528 subclass 342][List of Patents for class 528 subclass 342]342 Subclass 342 indent level is 4 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
 [List of Pre Grant Publications for class 528 subclass 343][List of Patents for class 528 subclass 343]343 Subclass 343 indent level is 4 Carboxylic acid containing (C=O)-(C=O) or is a derivative thereof, e.g., oxalic acid, etc.
 [List of Pre Grant Publications for class 528 subclass 344][List of Patents for class 528 subclass 344]344 Subclass 344 indent level is 4 Bridged- or fused-ring-containing reactant other than as anhydride fused to a nonfused- or bridged-ring system
 [List of Pre Grant Publications for class 528 subclass 345][List of Patents for class 528 subclass 345]345 Subclass 345 indent level is 4 Ethylenically unsaturated reactant
 [List of Pre Grant Publications for class 528 subclass 346][List of Patents for class 528 subclass 346]346 Subclass 346 indent level is 4 Cycloaliphatic ring-containing reactant
[List of Pre Grant Publications for class 528 subclass 347][List of Patents for class 528 subclass 347]347 Subclass 347 indent level is 4 Aryl ring-containing reactant
 [List of Pre Grant Publications for class 528 subclass 349][List of Patents for class 528 subclass 349]349 Subclass 349 indent level is 4 Reactant contains three carbon atoms directly bonded to a single carbon atom
[List of Pre Grant Publications for class 528 subclass 350][List of Patents for class 528 subclass 350]350 Subclass 350 indent level is 3 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
[List of Pre Grant Publications for class 528 subclass 354][List of Patents for class 528 subclass 354]354 Subclass 354 indent level is 2 From compound having -C-C(=O)-O-C- group as part of a heterocyclic ring, e.g., lactone, etc.
 [List of Pre Grant Publications for class 528 subclass 360][List of Patents for class 528 subclass 360]360 Subclass 360 indent level is 2 From sulfur-containing carboxylic acid
 [List of Pre Grant Publications for class 528 subclass 361][List of Patents for class 528 subclass 361]361 Subclass 361 indent level is 2 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
 [List of Pre Grant Publications for class 528 subclass 362][List of Patents for class 528 subclass 362]362 Subclass 362 indent level is 2 From organic nitrile group-containing compound
 [List of Pre Grant Publications for class 528 subclass 363][List of Patents for class 528 subclass 363]363 Subclass 363 indent level is 2 With nitrogen-containing reactant
 [List of Pre Grant Publications for class 528 subclass 364][List of Patents for class 528 subclass 364]364 Subclass 364 indent level is 2 With sulfur-containing reactant
[List of Pre Grant Publications for class 528 subclass 365][List of Patents for class 528 subclass 365]365 Subclass 365 indent level is 2 With reactant containing at least one cyclic ether group
[List of Pre Grant Publications for class 528 subclass 367][List of Patents for class 528 subclass 367]367 Subclass 367 indent level is 1 FROM REACTANT HAVING A NITROGEN ATOM DIRECTLY BONDED TO THE CARBON ATOM OF A CARBONYL GROUP, I.E., N-C(=O)-
[List of Pre Grant Publications for class 528 subclass 370][List of Patents for class 528 subclass 370]370 Subclass 370 indent level is 1 FROM REACTANT HAVING A HALOGEN ATOM OR OXYGEN SINGLE BONDED TO A CARBONYL GROUP, E.G., HALO-C(=O)-, -O-C(=O)-O, ETC.
[List of Pre Grant Publications for class 528 subclass 373][List of Patents for class 528 subclass 373]373 Subclass 373 indent level is 1 FROM SULFUR-CONTAINING REACTANT
[List of Pre Grant Publications for class 528 subclass 392][List of Patents for class 528 subclass 392]392 Subclass 392 indent level is 1 POLYMER OF AN ETHYLENICALLY UNSATURATED REACTANT WITH A SATURATED REACTANT
 [List of Pre Grant Publications for class 528 subclass 394][List of Patents for class 528 subclass 394]394 Subclass 394 indent level is 1 FROM BORON-CONTAINING REACTANT
 [List of Pre Grant Publications for class 528 subclass 395][List of Patents for class 528 subclass 395]395 Subclass 395 indent level is 1 FROM ALUMINUM- OR HEAVY METAL-CONTAINING REACTANT
 [List of Pre Grant Publications for class 528 subclass 396][List of Patents for class 528 subclass 396]396 Subclass 396 indent level is 1 FROM HYDROCARBON REACTANT
 [List of Pre Grant Publications for class 528 subclass 397][List of Patents for class 528 subclass 397]397 Subclass 397 indent level is 1 FROM HALOGENATED HYDROCARBON REACTANT
[List of Pre Grant Publications for class 528 subclass 398][List of Patents for class 528 subclass 398]398 Subclass 398 indent level is 1 FROM PHOSPHORUS-CONTAINING REACTANT
[List of Pre Grant Publications for class 528 subclass 401][List of Patents for class 528 subclass 401]401 Subclass 401 indent level is 1 FROM FLUORINE-CONTAINING REACTANT
[List of Pre Grant Publications for class 528 subclass 403][List of Patents for class 528 subclass 403]403 Subclass 403 indent level is 1 FROM HETEROCYCLIC REACTANT CONTAINING AS RING ATOMS OXYGEN, SELENIUM OR TELLURIUM, E.G., EPOXY, ETC.
[List of Pre Grant Publications for class 528 subclass 422][List of Patents for class 528 subclass 422]422 Subclass 422 indent level is 1 NITROGEN-CONTAINING REACTANT
 [List of Pre Grant Publications for class 528 subclass 425][List of Patents for class 528 subclass 425]425 Subclass 425 indent level is 1 FROM ORGANIC OXYGEN-CONTAINING REACTANT
[List of Pre Grant Publications for class 528 subclass 480][List of Patents for class 528 subclass 480]480 Subclass 480 indent level is 1 TREATING POLYMER CONTAINING MATERIAL OR TREATING A SOLID POLYMER OR A RESINIFIABLE INTERMEDIATE CONDENSATION PRODUCT
 [List of Pre Grant Publications for class 528 subclass 481][List of Patents for class 528 subclass 481]481 Subclass 481 indent level is 2 Treating at O Deg C (32 Deg F) or below, or at 200 Deg C (392 Deg F) or above
 [List of Pre Grant Publications for class 528 subclass 482][List of Patents for class 528 subclass 482]482 Subclass 482 indent level is 2 Contacting with ion exchange material or solid sorbent
 [List of Pre Grant Publications for class 528 subclass 483][List of Patents for class 528 subclass 483]483 Subclass 483 indent level is 2 Contacting with exteriorly produced specified gaseous agent other than drying, blanket, or carrier gas
 [List of Pre Grant Publications for class 528 subclass 484][List of Patents for class 528 subclass 484]484 Subclass 484 indent level is 2 Preventing or removing reactor or processing equipment buildup
 [List of Pre Grant Publications for class 528 subclass 485][List of Patents for class 528 subclass 485]485 Subclass 485 indent level is 2 Contacting with aluminum or heavy metal material
 [List of Pre Grant Publications for class 528 subclass 486][List of Patents for class 528 subclass 486]486 Subclass 486 indent level is 2 Contacting with carboxylic acid, salt, or anhydride thereof
 [List of Pre Grant Publications for class 528 subclass 487][List of Patents for class 528 subclass 487]487 Subclass 487 indent level is 2 Contacting with sulfur or phosphorus-containing material
[List of Pre Grant Publications for class 528 subclass 488][List of Patents for class 528 subclass 488]488 Subclass 488 indent level is 2 Contacting with alkali (Li, Na, K, Rb, Cs, Fr) or alkaline earth (Be, Mg, Ca, Sr, Ba) metal or compound thereof
 [List of Pre Grant Publications for class 528 subclass 490][List of Patents for class 528 subclass 490]490 Subclass 490 indent level is 2 Contacting with specified element or with specified inorganic compound other than water, elemental nitrogen, air and the inert gases (Group VIII A)
[List of Pre Grant Publications for class 528 subclass 491][List of Patents for class 528 subclass 491]491 Subclass 491 indent level is 2 Contacting with organic material
[List of Pre Grant Publications for class 528 subclass 499][List of Patents for class 528 subclass 499]499 Subclass 499 indent level is 2 Contacting with water
 [List of Pre Grant Publications for class 528 subclass 501][List of Patents for class 528 subclass 501]501 Subclass 501 indent level is 2 With distilling or pressured reduction step to remove material, e.g., flashing, autorefrigeration, etc.
[List of Pre Grant Publications for class 528 subclass 502R][List of Patents for class 528 subclass 502R]  502R Subclass 502R indent level is 2 Physical treatment
 [List of Pre Grant Publications for class 528 subclass 503][List of Patents for class 528 subclass 503]503 Subclass 503 indent level is 2 Temperature maintaining, heating or cooling
 
CROSS-REFERENCE ART COLLECTIONS
 
 [List of Pre Grant Publications for class 528 subclass 901][List of Patents for class 528 subclass 901]901 ROOM TEMPERATURE CURABLE SILICON-CONTAINING POLYMER
 [List of Pre Grant Publications for class 528 subclass 902][List of Patents for class 528 subclass 902]902 PARTICULATE MATERIAL PREPARED FROM AN ISOCYANATE
 [List of Pre Grant Publications for class 528 subclass 903][List of Patents for class 528 subclass 903]903 POLYMERIZING OR PROCESSING AN ISOCYANATE UNDER SUBSTANTIALLY ANHYDROUS CONDITIONS
 [List of Pre Grant Publications for class 528 subclass 904][List of Patents for class 528 subclass 904]904 ISOCYANATE POLYMER HAVING STATED HYDROPHILIC OR HYDROPHOBIC PROPERTY
 [List of Pre Grant Publications for class 528 subclass 905][List of Patents for class 528 subclass 905]905 POLYMER PREPARED FROM ISOCYANATE REACTANT HAS ADHESIVE PROPERTY
 [List of Pre Grant Publications for class 528 subclass 906][List of Patents for class 528 subclass 906]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.
 [List of Pre Grant Publications for class 528 subclass 950][List of Patents for class 528 subclass 950]950 POLYMERS USEFUL FOR REPLACING HARD ANIMAL TISSUES, E.G., DENTURES, BONES, ETC.
 [List of Pre Grant Publications for class 528 subclass 930][List of Patents for class 528 subclass 930]930 GUAYULE RUBBER
[List of Pre Grant Publications for class 528 subclass 931][List of Patents for class 528 subclass 931]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.
 
FOREIGN ART COLLECTIONS
 
      FOR000          CLASS-RELATED FOREIGN DOCUMENTS