US PATENT SUBCLASS 526 / 316
.~.~ From ketone or ketene monomer

Current as of: June, 1999
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526 /   HD   SYNTHETIC RESINS OR NATURAL RUBBERS -- PART OF THE CLASS 520 SERIES

*  DD  SYNTHETIC RESINS (Class 520, Subclass 1) {8}
72  DF  .~ POLYMERS FROM ONLY ETHYLENIC MONOMERS OR PROCESSES OF POLYMERIZING, POLYMERIZABLE COMPOSITIONS CONTAINING ONLY ETHYLENIC MONOMERS AS REACTANTS OR PROCESSES OF PREPARING {43}
316.~.~ From ketone or ketene monomer

DEFINITION

Classification: 526/316

From ketone or ketone monomer:

(under subclass 72) Subject matter wherein the unsaturated monomer contains a ketone or ketone group.

(1) Note. A ketene requires a compound having the structure =C=O. Ketenes are considered as ketones herein.

SEE OR SEARCH CLASS

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