US PATENT SUBCLASS 526 / 202
.~.~.~.~ Normally solid polymer contains free alcohol group or alcoholate thereof

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}
89  DF  .~.~ Polymerizing in the presence of a specified material other than monomer {28}
201  DF  .~.~.~ Material contains previously formed normally solid polymer which is distinct from polymer to be formed and is a polymer formed from at least one ethylenic monomer {2}
202.~.~.~.~ Normally solid polymer contains free alcohol group or alcoholate thereof

DEFINITION

Classification: 526/202

(under subclass 201) Subject matter wherein the preformed normally solid polymer contains at least one free hydroxyl group or nonheavy metal salt thereof.

(1) Note. The preformed polymer intended primarily for this subclass, but not limited thereto, is of the type that has been formed by the hydrolysis or after-treatment of a preformed polyvinyl acetate polymer and is known generally as polyvinyl alcohol.