Thickened water-based hydraulic fluids

Details Thickened water-based hydraulic fluids Thickened water-based hydraulic fluids

1981-06-08

1983-06-28

Kittle, John E.

Compositions

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

Organic components

252 77, 252 781, 252 785, 252 79, 548347, 548355, 568679, 568680, C10M 304, C10M 318, C10M 322

Patent

active

043904408

ABSTRACT:
In accordance with the instant invention, a water-based hydraulic fluid, having improved viscosity can be obtained by blending a carboxylic acid with a thickened hydraulic fluid composition employing a thickener obtained by modifying a conventional polyether polyol thickening agent with an alpha-olefin epoxide or glycidyl ether having about 10 to 24 carbon atoms or mixtures thereof. Small amounts of higher molecular weight glycols may also be incorporated into the chain.

REFERENCES:
patent: 3277001 (1966-10-01), Fischer et al.
patent: 3346501 (1967-10-01), Boehmer
patent: 3629111 (1971-12-01), Cramer
patent: 4105580 (1978-08-01), Sebag et al.
patent: 4138346 (1979-02-01), Nassry et al.
patent: 4151099 (1979-04-01), Nassry et al.
patent: 4288639 (1981-09-01), Camp
patent: 4310436 (1982-01-01), Camp
patent: 4312768 (1982-01-01), Nassry et al.
patent: 4312775 (1982-01-01), Panek et al.
patent: 4342658 (1982-08-01), Tincher et al.
patent: 4354956 (1982-10-01), Camp

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