US PATENT SUBCLASS 528 / 125
.~.~ From ketone-containing phenolic reactant or with ketone-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}
125.~.~ From ketone-containing phenolic reactant or with ketone-containing reactant {3}
126  DF  .~.~.~> Polymerizing in the presence of a specified material other than reactant
127  DF  .~.~.~> With nonketone- or nonphenolic-aldehyde or derivative as a reactant
128  DF  .~.~.~> With nonphenolic or nonketone reactant

DEFINITION

Classification: 528/125

(under subclass 86) Subject matter wherein a polymer is derived from a phenol, phenol ether, or inorganic phenolate which contains a ketone group or wherein a phenol, phenol ether, or inorganic phenolate-containing material is reacted with a ketone-containing material.

(1) Note. For purposes of this subclass a reactant having a C=C=O group (a ketene) is considered as being a ketone.

SEE OR SEARCH CLASS

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