Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – Mixing of two or more solid polymers; mixing of solid...
Reexamination Certificate
2011-06-21
2011-06-21
Zimmer, Marc S (Department: 1765)
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
Mixing of two or more solid polymers; mixing of solid...
C428S405000, C524S424000, C524S440000, C524S441000, C524S462000, C528S024000, C528S042000
Reexamination Certificate
active
07964667
ABSTRACT:
An elastomer blend is made by admixing fluoroelastomer and fluorinated silicone polymer (with optional filler and/or conductive particulate) into a polymeric admixture in weight ratios to provide a low vaporous hydrocarbon permeation rate and high thermal strain value in thermally robust elastomer cured from the blend. The blend is of especial use for making gaskets for use in high stress conditions at elevated operating temperatures.
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Hochgesang Paul J.
Walker Francis Joseph
Freudenberg-NOK General Partnership
Harness & Dickey & Pierce P.L.C.
Wangerow Ronald W.
Zimmer Marc S
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