US PATENT SUBCLASS 528 / 167
.~.~ Phosphorus-containing reactant

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}
167.~.~ Phosphorus-containing reactant {2}
168  DF  .~.~.~> Nitrogen-containing reactant
169  DF  .~.~.~> Halogen-containing reactant

DEFINITION

Classification: 528/167

(under subclass 86) Subject matter wherein a polymer is derived (1) from a phenol, phenol ether, or inorganic phenolate reactant containing at least one atom of phosphorus, or (2) from a phenol, phenol ether, or inorganic phenolate and a phosphorus-containing reactant.