US PATENT SUBCLASS 527 / 600
.~ FROM NATURAL RESIN OR DERIVATIVE REACTANT EXCLUDING TALL OIL OR DERIVATIVE

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.~ FROM NATURAL RESIN OR DERIVATIVE REACTANT EXCLUDING TALL OIL OR DERIVATIVE {3}
601  DF  .~.~> With polyepoxide reactant
602  DF  .~.~> With phenolic reactant {1}
604  DF  .~.~> With polycarboxylic acid or derivative and a compound having two or more hydroxyl groups as reactants

DEFINITION

Classification: 527/600

FROM NATURAL RESIN OR DERIVATIVE REACTANT EXCLUDING TALL OIL OR DERIVATIVE:

(under subclass 1) Subject matter under Class 520, ... wherein a solid polymer is derived from a reactant, which is a natural resin or derivative excluding tall oil or derivatives, by means of chemical reaction with an ethylenic reactant, a SICP or SPFI; or process of preparing said polymer.

SEE OR SEARCH CLASS

520, Synthetic Resins or Natural Rubbers, Glossary, for the definition of the terms "natural resin", "natural resin derivative", and "fatty acid" which latter definition includes a discussion of tall oil and its derivatives.

525, Synthetic Resins or Natural Rubbers,

54.4+, for the definition natural resins (since they are presumed to possess ethylenic unsaturation) with a preformed SICP (liquid or solid).

526, Synthetic Resins or Natural Rubbers,

238.3, for polymers derived solely from ethylenic reactants at least one of which is a natural resin.