US PATENT SUBCLASS 528 / 185
.~.~.~.~ Phenolic reactant contains at least two aryl rings and two diverse phenolic to oxygen bonds

Current as of: June, 1999
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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}
176  DF  .~.~ With polycarboxylic acid or derivative as reactant {8}
183  DF  .~.~.~ Nitrogen reactant contains at least one amino-nitrogen atom {4}
185.~.~.~.~ Phenolic reactant contains at least two aryl rings and two diverse phenolic to oxygen bonds

DEFINITION

Classification: 528/185

(under subclass 183) Subject matter wherein a phenolic reactant contains two or more oxygen atoms directly bonded to two distinct aryl nuclear carbon atoms of two distinct aryl

rings and wherein the bonded oxygen atoms form two distinct phenols, phenol ethers, or inorganic phenolates or mixtures thereof with the aryl rings to which they are bonded, e.g., [figure] [caption]etc.