Peroxide-curable brominated or iodinated fluoroelastomer composi

Details Peroxide-curable brominated or iodinated fluoroelastomer composi Peroxide-curable brominated or iodinated fluoroelastomer composi

1984-12-07

1985-07-16

Lilling, Herbert J.

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

Synthetic resins

Processes of preparing a desired or intentional composition...

524 89, 524256, 524546, 5253263, 525382, C08K 518, C08F 832

Patent

active

045297592

ABSTRACT:
A peroxide-curable fluoroelastomer composition which comprises a fluoroelastomer whose interpolymerized units consist essentially of units derived from vinylidene fluoride, units derived from at least one other fluorine-containing monomer copolymerizable therewith, said monomer being a compound which contains 2-7 carbon atoms, contains no bromine atoms or iodine atoms, and contains at least as many fluorine atoms as carbon atoms, and said fluoroelastomer contains up to 3 mole percent of units derived from a bromine-containing olefin or 0.1-2 mole percent of units derived from an iodine-containing olefin, and from about 0.05-2 parts per 100 parts fluoroelastomer of an N,N,N',N'-tetrasubstituted 1,8-diaminonaphthalene having the formula: ##STR1## wherein R.sub.1, R.sub.2, R.sub.3 and R.sub.4 are independently alkyl groups of 1-6 carbon atoms, phenyl or benzyl, R.sub.1 and R.sub.2 and/or R.sub.3 and R.sub.4 can be joined to form a 5- or 6-membered heterocyclic ring in which a carbon atom can be replaced by an oxygen or a sulfur atom, R.sub.1 and R.sub.3 and/or R.sub.2 and R.sub.4 can be joined to form a heterocyclic ring of 6-20 carbon atoms in which a carbon atom can be replaced by an oxygen or a sulfur atom, X and Y are independently an alkyl group or an alkoxy group containing 1-4 carbon atoms and n is 0-3.

REFERENCES:
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patent: 2793200 (1957-05-01), West
patent: 2951832 (1960-09-01), Moran
patent: 2979490 (1961-04-01), West
patent: 4250278 (1981-02-01), Suzuki et al.
patent: 4467074 (1984-08-01), Oka et al.
patent: 4487878 (1984-12-01), Vasta
patent: 4490501 (1984-12-01), Vasta

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