Fluid hydrocarbon oil compositions containing block copolymers f

Details Fluid hydrocarbon oil compositions containing block copolymers f Fluid hydrocarbon oil compositions containing block copolymers f

1975-01-08

1979-01-23

Gantz, Delbert E.

Compositions

Electrolytes for electrical devices

C10M 116

Patent

active

041360486

ABSTRACT:
A fluid having an improved viscosity/temperature relationship results from a blend of that fluid and a block copolymer having an AB configuration wherein the A portion is a polymeric structure that is insoluble in said oil below a characteristic temperature and soluble above that temperature and the B portion is a polymeric structure that is soluble in said fluid over the complete range of temperature for which the liquid composition will be used and wherein the chain length of said B portion is small relative to that of said A portion. Fluid compositions having a relatively constant viscosity over an extended temperature range result when two or more such block polymers are blended with the fluid.

REFERENCES:
patent: 3318813 (1967-05-01), McCormick et al.

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