US PATENT SUBCLASS 522 / 188
.~.~.~ Derived from aromatic hydrocarbon

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}
184  DF  .~.~ Processes of preparing a solid polymer from ethylenic reactants only; or compositions therefore {5}
188.~.~.~ Derived from aromatic hydrocarbon

DEFINITION

Classification: 522/188

Derived from aromatic hydrocarbon:

(under subclass 184) Subject matter wherein an ethylenic reactant composed only of carbon and hydrogen atoms and which contains an aryl ring is polymerized.

(1) Note. See Class 520, Glossary, for a definition of the term "aryl".