Extrudable fluoroelastomer composition

Curable multimodal fluoroelastomer compositions contain a low viscosity fluoroelastomer component that imparts good extrusion performance and a high viscosity component that imparts good physical properties in cured articles. The fluoroelastomer comprises copolymerized units of vinylidene fluoride,...

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Bibliographic Details
Main Author TANG PHAN L
Format Patent
LanguageEnglish
Published 09.06.2005
Edition7
Subjects
CHEMISTRY
COMPOSITIONS BASED THEREON
MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVINGCARBON-TO-CARBON UNSATURATED BONDS
METALLURGY
ORGANIC MACROMOLECULAR COMPOUNDS
THEIR PREPARATION OR CHEMICAL WORKING-UP
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Summary:Curable multimodal fluoroelastomer compositions contain a low viscosity fluoroelastomer component that imparts good extrusion performance and a high viscosity component that imparts good physical properties in cured articles. The fluoroelastomer comprises copolymerized units of vinylidene fluoride, hexafluoropropylene and tetrafluoroethylene. At least the low viscosity component also contains copolymerized units of a bromine- or iodine-containing cure site monomer such as 4-bromo-3,3, 4,4-tetrafluorobutene-1 or 4-iodo-3,3,4,4-tetrafluorobutene-1.
Bibliography:Application Number: US20040957358