US PATENT SUBCLASS 526 / 298
.~.~.~ Contains non-nitrile nitrogen atom or contains an oxygen atom

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}
297  DF  .~.~ From nitrile group containing monomer other than acrylonitrile or methacrylonitrile {3}
298.~.~.~ Contains non-nitrile nitrogen atom or contains an oxygen atom

DEFINITION

Classification: 526/298

(under subclass 297) Subject matter wherein (1) the monomer contains at least two nitrogen atoms, one of said nitrogen atoms being part of a nitrile group, and the other nitrogen atom being in a nonnitrile form; or (2) the nitrile-containing monomer contains an oxygen atom chemically combined therein.

SEE OR SEARCH THIS CLASS, SUBCLASS:

300, for a polymer derived from a monomer containing plural nitrile groups and no other nonnitrile nitrogen atom or no oxygen atom.