US PATENT SUBCLASS 525 / 142
.~.~.~.~.~ Solid polymer derived from ethylenic reactants only is derived from a nitrogen-containing reactant

Current as of: June, 1999
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525 /   HD   SYNTHETIC RESINS OR NATURAL RUBBERS -- PART OF THE CLASS 520 SERIES

*  DD  SYNTHETIC RESINS (Class 520, Subclass 1) {4}
50  DF  .~ MIXING OF TWO OR MORE SOLID POLYMERS; MIXING OF SOLID POLYMER OR SICP WITH SICP OR SPFI; MIXING OF SICP 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 {32}
55  DF  .~.~ At least one solid polymer derived from ethylenic reactants only {25}
132  DF  .~.~.~ With saturated phenolic reactant or polymer thereof; or with solid copolymer derived from at least one phenolic reactant wherein at least one of the reactants forming the solid copolymer is saturated; or with SPFI wherein at least one of the necessary ingredients is a phenolic reactant or with a reaction product thereof; or with a SICP containing a phenolic group Si-H or Si-C bond {8}
134  DF  .~.~.~.~ Contacting with aldehyde or aldehyde-type reactant or polymer therefrom {9}
142.~.~.~.~.~ Solid polymer derived from ethylenic reactants only is derived from a nitrogen-containing reactant

DEFINITION

Classification: 525/142

Solid polymer derived from ethylenic reactants only is derived from a nitrogen-containing reactant:

(under subclass 134) Subject matter wherein the solid polymer is derived from or reacted with a nitrogen-containing ethylenic reactant, e.g., acrylamide, 2-vinylpyridine, etc.