US PATENT SUBCLASS 526 / 344.1
.~.~.~ Bulk or mass polymerization of vinyl chloride only

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}
344  DF  .~.~ From vinyl chloride {4}
344.1.~.~.~ Bulk or mass polymerization of vinyl chloride only

DEFINITION

Classification: 526/344.1

Bulk or mass polymerization of vinyl chloride only:

(under subclass 344) Subject matter wherein vinyl chloride only is polymerized under so-called mass or bulk, also known as block or cast polymerization conditions, and wherein the process does not involve the use of a solvent or dispersing medium, and products which are the result of such a polymerization process.

(1) Note. Appropriate for this subclass are processes wherein the monomer or polymer produced act as solvents.