US PATENT SUBCLASS 524 / 397
.~.~.~.~.~.~ Ethylenic group; or at least two (C=O)O groups bonded to each other directly or only by carbon atoms

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

*  DD  SYNTHETIC RESINS (Class 520, Subclass 1) {1}
*  DD  .~ PROCESSES OF PREPARING A DESIRED OR INTENTIONAL COMPOSITION OF AT LEAST ONE NONREACTANT MATERIAL AND AT LEAST ONE SOLID POLYMER OR SPECIFIED INTERMEDIATE CONDENSATION PRODUCT, OR PRODUCT THEREOF (Class 523, subclass 1) {17}
1  DF  .~.~ Adding a NRM to a preformed solid polymer or preformed specified intermediate condensation product, composition thereof; or process of treating or composition thereof {31}
80  DF  .~.~.~ DNRM which is other than silicon dioxide, glass, titanium dioxide, water, halohydrocarbon, hydrocarbon, or elemental carbon {4}
81  DF  .~.~.~.~ Organic DNRM {21}
394  DF  .~.~.~.~.~ Oxygen atom or metal atom DNRM, e.g., metal stearate, etc. {6}
397.~.~.~.~.~.~ Ethylenic group; or at least two (C=O)O groups bonded to each other directly or only by carbon atoms

DEFINITION

Classification: 524/397

Ethylenic group, or at least two (C=O)O groups bonded to each other directly or only by carbon atoms:

(under subclass 394) Subject matter wherein the oxygen or metal compound contains at least one ethylenic group, or at least two O-O groups bonded to each other directly or bonded solely by carbon atoms.

(1) Note. Included herein are oxalic acid salts or salts of polycarboxylic acids.