Polymer-modified automatic transmission fluid

Details Polymer-modified automatic transmission fluid Polymer-modified automatic transmission fluid

1976-02-02

1977-04-19

Pitlick, Harris A.

Compositions

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

Organic components

252 59, C10M 118

Patent

active

040186954

ABSTRACT:
Compounded automatic transmission fluids having improved properties, including shear and viscosity properties, are obtained by the incorporation therein of alpha-olefin polymers of controlled molecular size and narrow molecular weight distribution. A shear stable, automatic transmission fluid having excellent high and low temperature viscosity properties and improved pour point is produced by adding the copolymer of 1-hexene and 1-octadecene to a lubricating oil.

REFERENCES:
patent: 2525788 (1950-10-01), Fontana et al.
patent: 2895915 (1959-07-01), Hewett et al.
patent: 3477957 (1969-11-01), Hall
patent: 3551336 (1970-12-01), Jacobsson et al.
patent: 3795616 (1974-03-01), Heilman et al.

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