US PATENT SUBCLASS 528 / 196
.~.~ With reactant having halo-C(=O)-halo, halo-C(=O)-O-, or -O-C(=O)-O- group

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}
196.~.~ With reactant having halo-C(=O)-halo, halo-C(=O)-O-, or -O-C(=O)-O- group {5}
198  DF  .~.~.~> Polymerizing in the presence of a specified material other than a reactant and other than Group IA or Group IIA material as sole metal atom {2}
201  DF  .~.~.~> Fused- or bridged-ring-containing reactant other than solely as a polycarboxylic acid anhydride group
202  DF  .~.~.~> Reactant contains a halogen atom other than solely as halogen bonded to a carbonyl group
203  DF  .~.~.~> Reactant contains a nitrogen atom
204  DF  .~.~.~> Two or more phenolic reactants

DEFINITION

Classification: 528/196

(under subclass 86) Subject matter wherein a polymer is derived from a phenol, phenol ether, or inorganic phenolate and at least one reactant containing a halo halo, halo, or group.

(1) Note. Within the purview of this area is the interreaction of a phenolic compound containing a halo or group with a different phenolic reactant.