US PATENT SUBCLASS 522 / 179
.~.~.~ Polycarboxylic acid or derivative and polyol, or condensate thereof, e.g., dimethylterephthalate, etc.

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}
178  DF  .~.~ Processes of preparing a solid polymer from at least one oxygen containing monomer; or compositions therefore {4}
179.~.~.~ Polycarboxylic acid or derivative and polyol, or condensate thereof, e.g., dimethylterephthalate, etc.

DEFINITION

Classification: 522/179

Polycarboxylic acid or derivative and polyol, or condensate thereof, e.g., dimethylterephthalate, etc.:

(under subclass 178) Subject matter wherein a polycarboxylic acid or a derivative thereof and a polyol, or a condensate thereof, are reacted so as to form a solid polymer.

(1) Note. See Class 520, Glossary, for a definition of the term "carboxylic acid or derivative". The definition of the term "polycarboxylic" also can be found under the above heading.

(2) Note. A polyol contains two or more C-OH groups wherein the carbon atom bonded to the -OH moiety is not double bonded to a chalcogen atom.