Base resistant fluoroelastomers

Details Base resistant fluoroelastomers Base resistant fluoroelastomers

1986-06-17

1987-09-15

Seccuro, Carman J.

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

Synthetic resins

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

526247, C08F21426, C08F21418, C08F21002, C08F25908

Patent

active

046940456

ABSTRACT:
A base resistant, substantially amorphous fluoroelastomer comprising (1) 10-40 mole percent ethylene units, (2) 32-60 mole percent tetrafluoroethylene units, (3) 20-40 mole percent perfluoro(alkyl vinyl ether) units wherein the alkyl group contains 1-5 carbon atoms, and (4) a cure-site monomer. Such fluoroelastomers are resistant to attack by amines, strong bases and hydrogen sulfide and possess a combination of good low temperature and high temperature properties and they are resistant to oil swell.

REFERENCES:
patent: 4028431 (1977-06-01), Futami et al.
patent: 4035565 (1977-07-01), Apotheker et al.
patent: 4281092 (1981-07-01), Breazeale

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