US PATENT SUBCLASS 528 / 154
.~.~.~ Phenol ether


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}
154.~.~.~ Phenol ether


DEFINITION

Classification: 528/154

(under subclass 129) Subject matter wherein a phenol ether is reacted with an aldehyde or derivative.