US PATENT SUBCLASS 525 / 327.3
.~.~.~.~.~ Three membered chalcogen ring monomer, e.g., oxirane, etc.


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

Internet Version by PATENTEC © 1999      Terms of Use



525 /   HD   SYNTHETIC RESINS OR NATURAL RUBBERS -- PART OF THE CLASS 520 SERIES

*  DD  SYNTHETIC RESINS (Class 520, Subclass 1) {4}
50  DF  .~ MIXING OF TWO OR MORE SOLID POLYMERS; MIXING OF SOLID POLYMER OR SICP WITH SICP OR SPFI; MIXING OF SICP WITH AN ETHYLENIC AGENT; MIXING OF SOLID POLYMER WITH A CHEMICAL TREATING OR ETHYLENIC AGENT; OR PROCESSES OF FORMING OR REACTING; OR THE RESULTANT PRODUCT OF ANY OF THE ABOVE OPERATIONS {32}
55  DF  .~.~ At least one solid polymer derived from ethylenic reactants only {25}
326.1  DF  .~.~.~ Chemically after treated solid polymers derived from ethylenically unsaturated monomers only {24}
327.2  DF  .~.~.~.~ Polymer derived from monomer containing chalcogen as part of heterocyclic ring other than solely as cyclic anhydride of ethylenically unsaturated dicarboxylic acid {1}
327.3.~.~.~.~.~ Three membered chalcogen ring monomer, e.g., oxirane, etc.


DEFINITION

Classification: 525/327.3

Three membered chalcogen ring monomer, e.g., oxirane, etc.

(under subclass 327.2) Product wherein the heterocyclic monomer contains a three membered ring having two carbons and one chalcogen atom.

(1) Note. Included herein is e.g., glycidyl acrylate, etc.