Sulfonated olefinic copolymers

Details Sulfonated olefinic copolymers Sulfonated olefinic copolymers

1993-06-15

1995-02-14

McAvoy, Ellen M.

Compositions

Electrolytes for electrical devices

252 482, 5253319, 5253321, 525353, C10M15100

Patent

active

053892712

ABSTRACT:
The present invention provides novel sulfonated ethylene/alpha olefin copolymer compositions obtained by sulfonating ethylene/alpha olefin copolymer having number average molecular weights in the range of about 800 to about 50,000, and which have a high degree of terminal unsaturation. Preferably, at least 30% of the terminal unsaturation is vinylidene terminal unsaturation. Also, the alpha olefin preferably has 3 to about 12 carbon atoms.

REFERENCES:
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patent: 4157432 (1979-06-01), Lundberg et al.
patent: 4303766 (1981-12-01), O'Farrell et al.
patent: 4361658 (1982-11-01), Lundberg et al.
patent: 4382005 (1983-05-01), Miller
patent: 4387174 (1983-06-01), Lundberg et al.
patent: 4778614 (1988-10-01), Rawlinson et al.
patent: 4897088 (1990-01-01), Ishikawa et al.

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