US PATENT SUBCLASS 525 / 397
.~.~.~ Mixed with carboxylic acid or derivative reactant or polymer derived therefrom


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}
390  DF  .~.~ Solid polymer derived solely from phenolic reactants wherein none of the reactants contains a plurality of methylol groups or derivatives thereof {6}
397.~.~.~ Mixed with carboxylic acid or derivative reactant or polymer derived therefrom


DEFINITION

Classification: 525/397

Mixed with carboxylic acid or derivative reactant or polymer derived therefrom:

(under subclass 390) Subject matter wherein the solid phenolic polymer is mixed with a carboxylic acid or derivative or polymer derived therefrom.

SEE OR SEARCH CLASS

520, Synthetic Resins or Natural Rubbers, the Glossary, for a definition of the term "carboxylic acid or derivative".