Silicone-based working fluid composition

Details Silicone-based working fluid composition Silicone-based working fluid composition

1984-11-02

1985-08-27

Howard, Jacqueline V.

Compositions

Electrolytes for electrical devices

252 783, 528 28, 528 38, 528 41, 528901, C10M 346

Patent

active

045376913

ABSTRACT:
The invention provides a silicone-based working fluid composition having improved heat resistance which comprises (A) 100 parts by weight of a base component composed of a first dimethylpolysiloxane terminated at both molecular chain ends each with a trimethylsiloxy group and a second dimethylpolysiloxane terminated at both molecular chain ends each with a silicon-bonded hydroxy group in such a proportion that the trimethylsiloxy/hydroxy molar ratio is from 95/5 to 10/90 and (B) from 0.01 to 5 parts by weight of an additive component which is a diorganopolysiloxane having imino-containing phenoxy groups, e.g. 4-anilinophenoxy group, 4-(4-anilino)anilinophenoxy group, 4-(.alpha.-naphthylamino)phenoxy group and 4-(.beta.-naphthylamino)phenoxy group, as the pendant groups on the polysiloxane.

REFERENCES:
patent: 3344066 (1967-09-01), Schiefer et al.
patent: 3378521 (1968-04-01), Boslick
patent: 3532730 (1970-10-01), Culpepper
patent: 4221896 (1980-09-01), Endo
patent: 4496696 (1985-01-01), Kurita

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