Water-glycol fluids made from polyoxyalkylene thickeners

Details Water-glycol fluids made from polyoxyalkylene thickeners Water-glycol fluids made from polyoxyalkylene thickeners

1985-01-30

1986-08-19

Lieberman, Paul

Compositions

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

Organic components

252 493, 252 52A, 252 75, 568606, 568608, 568613, 568618, 568622, 568625, C10M11504, C10M17302

Patent

active

046068376

ABSTRACT:
Water soluble thickeners made by alkoxylating monohydric alcohol hydrophobes are described. The monohydric alcohol should have at least 18 carbon atoms to be properly hydrophobic. In addition, a large proportion of ethylene oxide must be added, such that the molar ratio of ethylene oxide to monohydric alcohol hydrophobe is at least 40:1. Improved results are obtained if 8-15 moles of propylene oxide are added as a block to the single mole of hydrophobe first. The alkoxylations are necessary to provide the desired viscosities and hydrophilic nature. These thickeners are particularly useful in the glycol-water based fluids of this invention.

REFERENCES:
patent: 2174761 (1939-10-01), Schuette et al.
patent: 2425755 (1947-08-01), Roberts et al.
patent: 2677700 (1954-05-01), Jackson et al.
patent: 3102893 (1963-09-01), Gaertner
patent: 3379644 (1968-04-01), Katzenstein
patent: 3567784 (1971-03-01), Tsatsos et al.
patent: 4491526 (1985-01-01), Deck
patent: 4521326 (1985-06-01), Seibert et al.

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