Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – Treating polymer containing material or treating a solid...
Patent
1992-04-16
1992-10-27
Schofer, Joseph L.
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
Treating polymer containing material or treating a solid...
5253299, 525379, 525384, 528499, 528501, C08F 610, C08F 832
Patent
active
051590581
ABSTRACT:
Polyglutarimides exhibit improved optical properties, as well as lowered content of non-aqueous volatiles, when the molten polyglutarimide is mixed with water, methanol, ethanol, or mixtures thereof, and the water, methanol, ethanol, or mixtures thereof is removed prior to isolation and processing of the polyglutarimide.
REFERENCES:
patent: 4246374 (1981-01-01), Kopchik
patent: 4727117 (1988-02-01), Hallden-Abberton et al.
patent: 4745159 (1988-05-01), Anzai et al.
Buhse Lucinda F.
Cohen Leslie A.
Freed William T.
Jerman Robert E.
Miller Glenn W.
Graham Roger K.
Rohm and Haas Company
Schofer Joseph L.
Strobaugh Terence P.
Zitomer Fred
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