Fluororubber compositions and articles thereof

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...

Reexamination Certificate

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Details

C525S326300, C525S387000

Reexamination Certificate

active

07087673

ABSTRACT:
A crosslinkable fluororubber composition comprising (A) a polymer of the formula: Z-(Rf-Q)n—Rf-Z wherein n is an integer of at least 1, Rf is a divalent perfluoroalkylene or perfluorooxyalkylene radical, Q is a divalent organic radical, and Z is a monovalent organic radical, having a viscosity of at least 1,000 Pa·s at 25° C., (B) a reinforcing filler, and (C) a peroxide crosslinking agent is effectively roll milled and experiences minimal changes of viscosity after milling. Molded parts can be produced on a mass scale.

REFERENCES:
patent: 5696189 (1997-12-01), Legare
patent: 6297339 (2001-10-01), Osawa et al.
patent: 6576701 (2003-06-01), Osawa et al.
patent: 2001/0008914 (2001-07-01), Osawa et al.
patent: 0 636 663 (1995-02-01), None
patent: 0 656 391 (1995-06-01), None
patent: 0 688 762 (1995-12-01), None
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patent: 06025498 (1994-02-01), None
patent: 2001-106893 (2001-04-01), None
patent: 2002188003 (2002-07-01), None
patent: WO 00/78871 (2000-12-01), None
patent: WO 02/44264 (2002-06-01), None
Machine Translation JP 06-025498 A (1994).
Machine Tranlsation JP 2002-188003 A (2002).

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