US PATENT SUBCLASS 522 / 160
.~.~.~.~ Carbocyclic ring containing, e.g., styrene, 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}
150  DF  .~.~ Processes of treating a solid polymer derived from ethylenic monomers only; or compositions therefore {4}
157  DF  .~.~.~ Solid polymer derived from monomer containing only carbon and hydrogen {3}
160.~.~.~.~ Carbocyclic ring containing, e.g., styrene, etc.

DEFINITION

Classification: 522/160

Carbocyclic ring containing, e.g., styrene, etc.:

(under subclass 157) Subject matter wherein the unsaturated monomer containing only carbon and hydrogen atoms contains at least one carbocyclic ring, e.g., styrene, etc.