Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – At least one aryl ring which is part of a fused or bridged...
Patent
1993-07-14
1995-08-22
Michl, Paul R.
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
At least one aryl ring which is part of a fused or bridged...
524496, 524462, 524492, 524520, 524545, 525199, C08K 304, C08L 2712
Patent
active
054441161
ABSTRACT:
An elastomeric composition having improved resistance to chemical attack is provided, the elastomeric composition including a perfluoroelastomer and a non-fibrillating particulate fluorographite. Also, a process for improving the processibility and resistance to chemical attack of a perfluoroelastomer is provided, in which the perfluoroelastomer is mixed with a non-fibrillating fluorocarbon particulate polymer to form a elastomeric composition which is processed at a temperature less than the melting temperature of the non-fibrillating fluorocarbon particulate polymer to disperse the fluorocarbon polymer throughout the perfluoroelastomer while maintaining the fluorocarbon polymer in particulate form.
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R. Morgan et al., "Reinforcement of Elastomers with Fluoroplastic Additives", E. I. Du Pont de Nemours & Co. presentation to the Energy Rubber Group in Arlington, Tex. (Jan. 16, 1991) originally presented at a meeting of the Rubber Division of the American Chemical Society in Washington, D.C. (Oct. 12, 1990).
Amin Harshad P.
Aufdermarsh Carl A.
DeWitt La Vonda R.
Greene, Tweed & Co.
Michl Paul R.
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