US PATENT SUBCLASS 528 / 227
.~.~ With aldehyde or derivative thereof as 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}
220  DF  .~ FROM KETONE OR KETENE REACTANT {4}
227.~.~ With aldehyde or derivative thereof as reactant

DEFINITION

Classification: 528/227

(under subclass 220) Subject matter wherein a ketone-containing material is reacted with at least one aldehyde or derivative.

SEE OR SEARCH THIS CLASS, SUBCLASS:

230, for a definition of an aldehyde or derivative.

SEE OR SEARCH CLASS

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