US PATENT SUBCLASS 527 / 301
.~.~ With N=C=X reactant wherein X is chalcogen

Current as of: June, 1999
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527 /   HD   SYNTHETIC RESINS OR NATURAL RUBBERS -- PART OF THE CLASS 520 SERIES

*  DD  SYNTHETIC RESINS (Class 520, Subclass 1) {6}
300  DF  .~ FROM CARBOHYDRATE OR DERIVATIVE AS A REACTANT {8}
301.~.~ With N=C=X reactant wherein X is chalcogen {1}
302  DF  .~.~.~> Oxyalkylated carbohydrate

DEFINITION

Classification: 527/301

With N=C=X reactant wherein X is chalcogen:

(under subclass 300) Subject matter wherein a N=C=X reactant is present in addition to the carbohydrate or derivative.

(1) Note. X is a chalcogen atom (O, S, Se, or Te).

SEE OR SEARCH CLASS

525, Synthetic Resins or Natural Rubbers,

54.22, for N=C=X derived solid polymer chemically treated with carbohydrate or derivative.