US PATENT SUBCLASS 526 / 302
.~.~ From monomer containing a >>N-C(=O)-N<< or >>N-C(-O)-N<< group e.g., urea, isoureau, etc.

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

*  DD  SYNTHETIC RESINS (Class 520, Subclass 1) {8}
72  DF  .~ POLYMERS FROM ONLY ETHYLENIC MONOMERS OR PROCESSES OF POLYMERIZING, POLYMERIZABLE COMPOSITIONS CONTAINING ONLY ETHYLENIC MONOMERS AS REACTANTS OR PROCESSES OF PREPARING {43}
302.~.~ From monomer containing a >>N-C(=O)-N<< or >>N-C(-O)-N<< group e.g., urea, isoureau, etc.

DEFINITION

Classification: 526/302

From monomer containing a NN or NN group, e.g., urea, isourea, etc.:

(under subclass 72) Subject matter wherein the unsaturated monomer contains a NN group or N group, e.g., unsaturated ureas, etc.

SEE OR SEARCH CLASS

528, Synthetic Resins or Natural Rubbers,

367+, for a polymer derived from a reactant which contains a - group.