Process for dynamically partially gelling fluoroelastomers

Details Process for dynamically partially gelling fluoroelastomers Process for dynamically partially gelling fluoroelastomers

1985-07-01

1987-11-24

Schofer, Joseph L.

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

Synthetic resins

Mixing of two or more solid polymers; mixing of solid...

525193, 5253263, 525387, 526249, 526254, 526255, C08F 806, C08F11422

Patent

active

047089881

ABSTRACT:
An extrudable fluoroelastomer comprising a gelled fluoroelastomer having units of vinylidene fluoride and units of at least one other fluorine-containing monomer copolymerizable with vinylidene fluoride, said monomer containing from 2-7 carbon atoms, containing no bromine atoms and containing at least as many flourine atoms as carbon atoms, said fluoroelastomer having been simultaneously mixed, sheared and gelled by an organic peroxide gelling agent to a gel content of from about 15-80% by weight, measured in methyl ethyl ketone at 80.degree. C.

REFERENCES:
patent: Re32028 (1985-11-01), Fischer
patent: 3825510 (1974-07-01), Yamamoto et al.
patent: 3851018 (1974-11-01), Kelly
patent: 4035565 (1977-07-01), Apotheker et al.
patent: 4115481 (1978-09-01), Finlay et al.
patent: 4271275 (1981-06-01), MacLachlan
patent: 4299958 (1981-11-01), Apotheker
patent: 4501869 (1985-02-01), Tatemoto et al.

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