US PATENT SUBCLASS 527 / 604
.~.~ With polycarboxylic acid or derivative and a compound having two or more hydroxyl groups as reactants

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}
604.~.~ With polycarboxylic acid or derivative and a compound having two or more hydroxyl groups as reactants

DEFINITION

Classification: 527/604

With polycarboxylic acid or derivative and a compound having two or more hydroxyl groups as reactants:

(under subclass 600) Subject matter wherein a polycarboxylic acid or derivative and a polyhydroxyl compound or salt thereof are present in addition to said natural resin or derivative.

(1) Note. Said polycarboxylic acid and polyhydroxyl compound can be prereacted prior to admixture with the natural resin or derivative.

SEE OR SEARCH CLASS

520, Synthetic Resins or Natural Rubbers, Glossary, for a definition of the term "carboxylic acid or derivative".

525, Synthetic Resins or Natural Rubbers,

10+, for a solid polyester reacted with a natural resin or derivative.