US PATENT SUBCLASS 522 / 20
.~.~.~.~.~ Specified rate-affecting material is a carboxylic acid or derivative


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

*  DD  SYNTHETIC RESINS (Class 520, Subclass 1) {1}
1  DF  .~ COMPOSITIONS TO BE POLYMERIZED BY WAVE ENERGY WHEREIN SAID COMPOSITION CONTAINS A RATE-AFFECTING MATERIAL; OR COMPOSITIONS TO BE MODIFIED BY WAVE ENERGY WHEREIN SAID COMPOSITION CONTAINS A RATE-AFFECTING MATERIAL; OR PROCESSES OF PREPARING OR TREATING A SOLID POLYMER UTILIZING WAVE ENERGY {27}
6  DF  .~.~ Compositions to be polymerized or modified by wave energy wherein said composition contains at least one specified rate-affecting material; or processes of preparing or treating a solid polymer utilizing wave energy in the presence of at least one specified rate-affecting material; e.g., nitrogen containing photosensitizer, oxygen containing photoinitiator, etc. wave energy in order to prepare a cellular product {14}
7  DF  .~.~.~ Contains two or more rate-affecting materials, at least one of which is specified {10}
12  DF  .~.~.~.~ Contains compound containing keto group not part of a ring and a specified rate-affecting material; or contains a specified rate-affecting material and a nonspecified photoinitiator or photosensitizer {11}
20.~.~.~.~.~ Specified rate-affecting material is a carboxylic acid or derivative


DEFINITION

Classification: 522/20

Specified rate-affecting material is a carboxylic acid or derivative:

(under subclass 12) Subject matter wherein the specified rate-affecting material is a carboxylic acid or derivative.

(1) Note. See Class 520, the Glossary, for a definition of the term "carboxylic acid or derivative". By schedule hierarchy the derivatives in this area are limited to acyclic anhydrides, esters and salts.