Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – Processes of preparing a desired or intentional composition...
Patent
1984-03-19
1985-10-29
Schofer, Joseph L.
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
Processes of preparing a desired or intentional composition...
524545, 524546, C08K 545
Patent
active
045501327
ABSTRACT:
A peroxide-curable fluoroelastomer composition comprising an elastomeric copolymer containing units derived from vinylidene fluoride, units derived from at least one other fluorine-containing monomer copolymerizable with vinylidene fluoride, said monomer being a compound which contains 2-7 carbon atoms, contains no bromine atom and contains at least as many fluorine atoms as carbon atoms, up to 3 mole percent, based on the total moles of copolymer, of a bromine-containing olefin with the proviso that enough of such olefin is present to provide at least about 0.05 weight percent bromine in the copolymer and about 0.5-5 parts per hundred parts elastomeric copolymer of tetramethylene sulfone.
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E. I. Du Pont de Nemours and Company
Sarofim N.
Schofer Joseph L.
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