Synthetic polyether thickeners and thickened aqueous systems con

Details Synthetic polyether thickeners and thickened aqueous systems con Synthetic polyether thickeners and thickened aqueous systems con

1986-03-07

1987-06-16

Wax, Robert A.

Compositions

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

Organic components

252 73, 252 77, 568620, 568624, 568625, C10M11916, C10M17302

Patent

active

046735186

ABSTRACT:
This invention relates to synthetic polyether thickeners and thickened aqueous systems containing them. The thickeners are unique because they can be used in aqueous systems at less than ten percent weight concentration which will flow in a Vickers 104(C) Vane pump at use temperatures. These properties make them particularly useful for thickening hydraulic fluids used in high pressure vane and gear pumps. The thickeners are prepared by reacting conventional polyether polyols with alpha-olefin epoxides having an average of 6 to 12 total carbon atoms to obtain products with specific epoxide-to-hydroxyl ratios.

REFERENCES:
patent: 4257902 (1981-03-01), Singer
patent: 4288639 (1981-08-01), Camp
patent: 4368133 (1983-01-01), Forsberg
patent: 4411819 (1983-10-01), Panek et al.
patent: 4481125 (1984-11-01), Holgado
patent: 4491526 (1985-01-01), Deck

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