US PATENT SUBCLASS 525 / 329.6
.~.~.~.~.~ Butene dioic acid or derivative monomer

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}
326.1  DF  .~.~.~ Chemically after treated solid polymers derived from ethylenically unsaturated monomers only {24}
329.5  DF  .~.~.~.~ Polymer derived from carboxylic acid or derivative monomer other than: vinyl acetate; or acrylic-or-methacrylic-acid, or derivatives {1}
329.6.~.~.~.~.~ Butene dioic acid or derivative monomer

DEFINITION

Classification: 525/329.6

Butene dioic acid or derivative monomer:

(under subclass 329.5) Product wherein the carboxylic acid monomer is a butene dioic acid or derivative.

(1) Note. For purposes of this subclass, butene dioic acid is defined as a dicarboxylic acid having only four carbon atoms and one ethylenic unsaturation.

SEE OR SEARCH CLASS

520, Synthetic Resins or Natural Rubbers, the Glossary, for the definition of the terms "carboxylic acid or derivative" and "ethylenically unsaturated".