Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – Mixing of two or more solid polymers; mixing of solid...
Patent
1991-01-08
1992-06-30
Schofer, Joseph L.
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
Mixing of two or more solid polymers; mixing of solid...
5253274, 5253276, 5253277, 5253295, 5253296, 5253298, 5253301, 5253304, 5253305, 5253306, 525343, 525348, 525379, 525383, 525384, 525385, 525386, C08F 830, C08F 832
Patent
active
051264099
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.
Zitomer Fred
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