Peroxide-curable fluoroelastomers

Details Peroxide-curable fluoroelastomers Peroxide-curable fluoroelastomers

2006-09-05

2006-09-05

Wu, David W. (Department: 1713)

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

Polymers from only ethylenic monomers or processes of...

C526S247000, C526S252000, C526S326000

Reexamination Certificate

active

07101943

ABSTRACT:
Fluoroelastomers, curable by peroxidic route, obtainable by polymerizing the following monomers:a) C2–C8hydrogenated fluoroolefins;b) fluorovinylethers of general formula:in-line-formulae description="In-line Formulae" end="lead"?CFX═CXOCF2OR   (I)in-line-formulae description="In-line Formulae" end="tail"?c) bis-olefins having general formula:in-line-formulae description="In-line Formulae" end="lead"?RI1RI2C═CRI3—Z—CRI4═CRI5RI6  (IA)in-line-formulae description="In-line Formulae" end="tail"?and optionally:d) one or more fluorinated olefinic comonomers selected from perfluoroalkylvinylethers (PAVE) CF2═CFOR2f, perfluorooxyalkylvinylethers CF2═CFOXa,e) C2–C8perfluorolefins;f) one or more C2–C8non fluorinated olefinic comonomers said fluoroelastomers comprising iodine and/or bromine atoms in the chain and/or in end position.

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