US PATENT SUBCLASS 525 / 54.3
.~.~ Previously formed solid polymer containing chemically combined carbohydrate admixed with a chemical treating or ethylenic agent, SPFI, SICP, or solid polymer

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}
54.3.~.~ Previously formed solid polymer containing chemically combined carbohydrate admixed with a chemical treating or ethylenic agent, SPFI, SICP, or solid polymer {1}
54.31  DF  .~.~.~> Carbohydrate containing polymer is derived from starch, or starch containing flour or meal {1}

DEFINITION

Classification: 525/54.3

Previously formed solid polymer containing chemically combined carbohydrate admixed with a chemical treating or ethylenic agent, SPFI, SICP, or solid polymer:

(under subclass 50) Subject matter wherein a solid polymer having chemically bound carbohydrate (or derivative) is treated by admixing with any of (a) chemical treating agent, (b) ethylenic agent, (c) solid polymer, (d) SPFI, or (e) SICP.

SEE OR SEARCH CLASS

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

526, Synthetic Resins or Natural Rubbers,

238.2+, for solid polymers prepared by polymerization of ethylenically unsaturated monomers having carbohydrate or derivative chemically bonded thereto.

527, Synthetic Resins or Natural Rubbers,

300+, for solid polymer prepared from carbohydrates or derivatives wherein at least one of the reactants is saturated.