US PATENT SUBCLASS 526 / 208
.~.~.~ Material contains aldehyde or ketone or polymeric reaction product thereof, e.g., urea-formaldehyde, etc.


Current as of: June, 1999
Click HD for Main Headings
Click for All Classes

Internet Version by PATENTEC © 1999      Terms of Use



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}
89  DF  .~.~ Polymerizing in the presence of a specified material other than monomer {28}
208.~.~.~ Material contains aldehyde or ketone or polymeric reaction product thereof, e.g., urea-formaldehyde, etc.


DEFINITION

Classification: 526/208

(under subclass 89) Subject matter wherein the specified additive is a ketone or aldehyde.

(1) Note. Included herein as being proper for this subclass are urea-formaldehyde reaction products.

SEE OR SEARCH CLASS

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