Electrorheological fluids based on silicone ionomer particles

Details Electrorheological fluids based on silicone ionomer particles Electrorheological fluids based on silicone ionomer particles

1990-01-29

1991-02-19

Clingman, A. Lionel

Compositions

Heat-exchange, low-freezing or pour point, or high boiling...

Organic components

252572, 252573, 556425, H01B 320, C09K 300

Patent

active

049941984

ABSTRACT:
This invention relates to an electrorheological (ER) fluid composition comprising a suspension of a solid silicone ionomer in an electrically non-conducting liquid wherein the silicone ionomer is a reaction product of (I) an amine functional diorganopolysiloxane having a degree of polymerization of less than about 10,000 in which at least about 3 mole percent of the silicon atoms have attached thereto, through silicon-carbon bonds, an amine functional organic group bearing at least one --NHR" group, in which R" is selected from the group consisting of hydrogen and an alkyl radical having 1 to 6 carbon atoms; and (II) an acid.

REFERENCES:
patent: 4645614 (1987-02-01), Goossens et al.
patent: 4687589 (1987-08-01), Block et al.
patent: 4702855 (1987-10-01), Goossens et al.
patent: 4744914 (1988-05-01), Filisko et al.

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