US PATENT SUBCLASS 527 / 603
.~.~.~ With ethylenically unsaturated reactant

Current as of: June, 1999
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527 /   HD   SYNTHETIC RESINS OR NATURAL RUBBERS -- PART OF THE CLASS 520 SERIES

*  DD  SYNTHETIC RESINS (Class 520, Subclass 1) {6}
600  DF  .~ FROM NATURAL RESIN OR DERIVATIVE REACTANT EXCLUDING TALL OIL OR DERIVATIVE {3}
602  DF  .~.~ With phenolic reactant {1}
603.~.~.~ With ethylenically unsaturated reactant

DEFINITION

Classification: 527/603

With ethylenically unsaturated reactant:

(under subclass 602) Subject matter wherein an ethylenically unsaturated reactant is present in addition to said phenolic reactant and said natural resin or derivative.