Fluoroelastomers

Details Fluoroelastomers Fluoroelastomers

2006-07-19

2009-11-03

Mulcahy, Peter D. (Department: 1796)

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

07612154

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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