US PATENT SUBCLASS 522 / 93
.~.~.~ With polycarboxylic acid or derivative and a polyol, a condensate or solid polymer thereof reactant

Current as of: June, 1999
Click HD for Main Headings
Click for All Classes

Internet Version by PATENTEC © 1999      Terms of Use


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}
90  DF  .~.~ Processes involving a polyurethane having terminal ethylenic unsaturation as reactant or as solid polymer; or compositions therefore {8}
93.~.~.~ With polycarboxylic acid or derivative and a polyol, a condensate or solid polymer thereof reactant

DEFINITION

Classification: 522/93

With polycarboxylic acid or derivative and a polyol, a condensate or solid polymer thereof reactant:

(under subclass 90) Subject matter wherein the unsaturated polyurethane is reacted with a polycarboxylic acid or derivative and a polyol or a condensate thereof so as to form a solid polymer; or wherein the polyurethane is reacted in the presence of a solid polymer derived from a polycarboxylic acid or derivative and a polyol.

(1) Note. See Class 520, Glossary, for a definition of the term "carboxylic acid or derivative".