US PATENT SUBCLASS 554 / 29
.~.~.~.~ Purification or recovery


Current as of: June, 1999
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554 /   HD   ORGANIC COMPOUNDS -- PART OF THE CLASS 532-570 SERIES

*  DD  ORGANIC COMPOUNDS (Class 532, Subclass 1) {1}
1  DF  .~ Fatty compounds having an acid moiety which contains the carbonyl of a carboxylic acid, salt, ester, or amide group bonded directly to one end of an acyclic chain of at least seven (7) uninterrupted carbons, wherein any additional carbonyl in the acid moiety is (1) part of an aldehyde or ketone group, (2) bonded directly to a noncarbon atom which is between the additional carbonyl and the chain, or (3) attached indirectly to the chain via ionic bonding {23}
24  DF  .~.~ Chemical modification of oils to improve their drying properties and products thereof {3}
25  DF  .~.~.~ Polymerization process and product thereof (e.g., thermal polymerization, oxidative polymerization, etc.) {3}
29.~.~.~.~ Purification or recovery


DEFINITION

Classification: 554/29

(under subclass 25) Processes which include separating the polymerized product from impurities or from the reaction mixture.