US PATENT SUBCLASS 528 / 214
.~.~.~ 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

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}
212  DF  .~.~ Phenolic reactant contains a single phenolic -OH group or a single inorganic phenolate thereof {2}
214.~.~.~ 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}
215  DF  .~.~.~.~> Material is a nitrogen-containing compound {1}
217  DF  .~.~.~.~> Material contains a metal atom

DEFINITION

Classification: 528/214

(under subclass 212) Subject matter wherein the phenolic reactant is polymerized in the presence of a specified material.

(1) Note.

(A)

For purposes of this subclass nonreactant materials (specified materials) which are present during a polymerization reaction and wherein the only metal atoms therein are Group IA (Li, Na, K, Rb, Cs, Fr) or Group IIA (Be, Mg, Ca, Sr, Ba, Ra) metal atoms or a mixture thereof,

are not considered as being specified materials.

(B)

Compounds which contain at least one group IA or Group IIA and at least one other non-Group IA or non-Group IIA metal atom are proper herein and are classified on the basis of the non-group IA or the non-Group IIA metal atom. (C)

A mixture of a metal compound specifically excluded herefrom and another material which can be considered as being a specified material, per se, is classified herein on the basis of the specified material, per se.

SEE OR SEARCH CLASS

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