US PATENT SUBCLASS 528 / 150
.~.~.~ Phenolic reactant contains a sulfur atom


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}
150.~.~.~ Phenolic reactant contains a sulfur atom


DEFINITION

Classification: 528/150

(under subclass 129) Subject matter wherein a phenol, inorganic phenolate, or phenol ether containing at least one sulfur atom is reacted with an aldehyde or derivative.