US PATENT SUBCLASS 526 / 68
.~.~ Recycling 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}
67  DF  .~ REMOVING AND RECYCLING REMOVED MATERIAL FROM AN ONGOING POLYMERIZATION ZONE TO A POLYMERIZATION ZONE {3}
68.~.~ Recycling monomer

DEFINITION

Classification: 526/68

(under subclass 67) Subject matter wherein monomer is removed from and recycled back to an ongoing polymerization reaction zone.

(1) Note. The removal herein need only involve a monomer. For instance, removing material containing monomer admixed with diluent and the recycling of both would be proper herein.

SEE OR SEARCH THIS CLASS, SUBCLASS:

69, for processes involving removing catalyst or catalyst

component together with monomer and recycling of only the catalyst.

70, for processes involving removing monomer and diluent and recycling only the diluent.