US PATENT SUBCLASS 525 / 54.32
.~.~.~.~ Carbohydrate containing polymer derived from acrylonitrile

Current as of: June, 1999
Click HD for Main Headings
Click for All Classes

Internet Version by PATENTEC © 1999      Terms of Use


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  DF  .~.~ 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}
54.32.~.~.~.~ Carbohydrate containing polymer derived from acrylonitrile

DEFINITION

Classification: 525/54.32

Carbohydrate containing polymer derived from acrylonitrile:

(under subclass 54.31) Subject matter wherein the carbohydrate containing polymer is derived from acrylonitrile (e.g., a polymer of acrylonitrile modified starch, etc.).

SEE OR SEARCH THIS CLASS, SUBCLASS:

54.31, for a polymer derived from methacrylonitrile.