US PATENT SUBCLASS 526 / 69
.~.~ Recycling catalyst

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}
69.~.~ Recycling catalyst

DEFINITION

Classification: 526/69

(under subclass 67) Subject matter wherein a catalyst or catalyst constituent is removed from and recycled back to an ongoing polymerization zone.

(1) Note. The removal herein need not solely involve a catalyst or catalyst constituent. For instance, removing a catalyst admixed with a diluent and the recycling of both would be proper herein.

SEE OR SEARCH THIS CLASS, SUBCLASS:

70, for processes involving removing a catalyst or catalyst component and a diluent and the recycling of only the diluent.