US PATENT SUBCLASS 524 / 45
.~.~.~.~.~.~ Carboxyalkyl or alkali metal salt thereof

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

*  DD  SYNTHETIC RESINS (Class 520, Subclass 1) {1}
*  DD  .~ 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 (Class 523, subclass 1) {17}
1  DF  .~.~ Adding a NRM to a preformed solid polymer or preformed specified intermediate condensation product, composition thereof; or process of treating or composition thereof {31}
27  DF  .~.~.~ Carbohydrate or derivative DNRM {9}
35  DF  .~.~.~.~ Cellulose {3}
42  DF  .~.~.~.~.~ Ether group containing, other than solely linking carbohydrate groups directly to each other {3}
45.~.~.~.~.~.~ Carboxyalkyl or alkali metal salt thereof

DEFINITION

Classification: 524/45

Carboxyalkyl or alkali metal salt thereof:

(under subclass 42) Subject matter wherein the cellulose DNRM has the general formula R-O-R'--OH or R-O-R'- metal, wherein R-O- is a cellulose moiety and - R'--OH or -R'- metal are noncarbohydrate containing organic radicals and wherein a carbon of the R' group is directly bonded to an oxygen atom of the O-R group.