US PATENT SUBCLASS 523 / 448
.~.~.~.~ Cellulose derivative containing -C(=O)OR or N

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

*  DD  SYNTHETIC RESINS (Class 520, Subclass 1) {1}
1  DF  .~ PROCESSES OF PREPARING A DESIRED OR INTENTIONAL COMPOSITION OF AT LEAST ONE NONREACTANT MATERIAL AND AT LEAST ONE SOLID POLYMER OR SPECIFIED INTERMEDIATE CONDENSATION PRODUCT, OR PRODUCT THEREOF {71}
400  DF  .~.~ Process of forming a composition containing a nonreactive material (NRM) and a polymer containing more than one 1,2-epoxy group, or a preformed polymer derived from or admixed with a reactant containing more than one 1,2-epoxy group, or with a polymer derived from an epihalohydrin and a polyhydric phenol or polyol; or composition or product thereof {24}
447  DF  .~.~.~ Carbohydrate or derivative including tannin or derivative DNRM {1}
448.~.~.~.~ Cellulose derivative containing -C(=O)OR or N

DEFINITION

Classification: 523/448

Cellulose derivative containing -C(=O) or N:

(under subclass 447) Subject matter wherein the carbohydrate DNRM contains repeating glucose units having the following structure shown below, and wherein R1 to R5 at least one of which is a R6, e.g., -OCH3[end subscrpt], etc., or wherein one or more of the -OR groups has been substituted with another atom or group containing nitrogen, e.g., -NH2, -C-NH2, etc. [figure]