Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – Treating polymer containing material or treating a solid...
Patent
1985-12-23
1987-09-22
Schofer, Joseph L.
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
Treating polymer containing material or treating a solid...
528498, 528503, 525242, 5253303, 5253333, C08F 600
Patent
active
046956212
ABSTRACT:
The residual monomers, solvents and other impurities particularly in coarse or oversized fat imbibing, fat retaining copolymer beads can be substantially reduced by bringing the copolymer beads into contact with a gas in the supercritical state.
REFERENCES:
patent: 4061566 (1977-12-01), Moddell
Peoples, Jr. Veo
Schofer Joseph L.
Teskin F. M.
The Dow Chemical Company
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