US PATENT SUBCLASS 528 / 151
.~.~.~ Phenolic reactant contains a halogen atom directly bonded to a nuclear carbon atom of the benzene-oxygen group

Current as of: June, 1999
Click HD for Main Headings
Click for All Classes

Internet Version by PATENTEC © 1999      Terms of Use


528 /   HD   SYNTHETIC RESINS OR NATURAL RUBBERS -- PART OF THE CLASS 520 SERIES

*  DD  SYNTHETIC RESINS (Class 520, Subclass 1) {23}
86  DF  .~ FROM PHENOL, PHENOL ETHER, OR INORGANIC PHENOLATE {15}
129  DF  .~.~ With aldehyde or derivative {18}
151.~.~.~ Phenolic reactant contains a halogen atom directly bonded to a nuclear carbon atom of the benzene-oxygen group

DEFINITION

Classification: 528/151

(under subclass 129) Subject matter wherein a phenol, inorganic phenolate, or phenol ether containing at least one halogen atom which is bonded to a nuclear carbon atom of a benzene ring and wherein at least one of the other nuclear carbon atoms of the same benzene ring is directly bonded to an oxygen atom so as to form a phenol, inorganic phenolate, or phenol ether therewith, is reacted with an aldehyde or derivative.