US PATENT SUBCLASS 522 / 98
.~.~.~ Polyurethane has at least one non-terminal ethylenic group

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}
90  DF  .~.~ Processes involving a polyurethane having terminal ethylenic unsaturation as reactant or as solid polymer; or compositions therefore {8}
98.~.~.~ Polyurethane has at least one non-terminal ethylenic group

DEFINITION

Classification: 522/98

Polyurethane has at least one nonterminal ethylenic group:

(under subclass 90) Subject matter wherein the unsaturated polyurethane contains at least one nonterminal ethylenic group.

SEE OR SEARCH THIS CLASS, SUBCLASS:

90, (1) and (2) Notes, for an explanation of the term

"terminal".