US PATENT SUBCLASS 528 / 88
.~.~.~ Polymerizing in the presence of a specified material other than 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}
87  DF  .~.~ From 1,2-epoxy-containing phenolic reactant or with 1,2-epoxy-containing reactant {12}
88.~.~.~ Polymerizing in the presence of a specified material other than reactant {6}
89  DF  .~.~.~.~> Material contains a phosphorus atom
90  DF  .~.~.~.~> Material contains a sulfur atom
91  DF  .~.~.~.~> Material contains a boron atom
92  DF  .~.~.~.~> Material contains a polyvalent metal atom
93  DF  .~.~.~.~> Material contains a nitrogen compound {1}
95  DF  .~.~.~.~> Material contains a Group IA metal atom (Li, Na, K, Rb, Cs, Fr)

DEFINITION

Classification: 528/88

(under subclass 87) Subject matter wherein a phenol, phenol ether, or inorganic phenolate which contains at least one 1, 2-epoxy is polymerized in the presence of a specified material, or wherein a phenol, phenol ether, or inorganic phenolate is polymerized with a 1, 2-epoxy-containing reactant in the presence of a specified material.

SEE OR SEARCH CLASS

520, Synthetic Resins or Natural Rubbers, see the Glossary for a definition of the term "specified material".