US PATENT SUBCLASS 524 / 291
.~.~.~.~.~.~.~.~ OH group other than as part of a COOH group, e.g., salicylic acid, etc.

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}
80  DF  .~.~.~ DNRM which is other than silicon dioxide, glass, titanium dioxide, water, halohydrocarbon, hydrocarbon, or elemental carbon {4}
81  DF  .~.~.~.~ Organic DNRM {21}
284  DF  .~.~.~.~.~ Carboxylic acid or derivative and wherein the derivative is other than a metal salt DNRM {3}
287  DF  .~.~.~.~.~.~ Aryl group {5}
290  DF  .~.~.~.~.~.~.~ Oxygen atom other than as part of a carboxylic acid or ester group {2}
291.~.~.~.~.~.~.~.~ OH group other than as part of a COOH group, e.g., salicylic acid, etc.

DEFINITION

Classification: 524/291

OH group other than as part of a COOH Group, e.g., salicyclic acid, etc.:

(under subclass 290) Subject matter wherein the oxygen atom is part of a hydroxyl group which is other than the hydroxyl group of a COOH group, e.g., propyl gallate, phenyl salicylate, etc.