Block copolymers as viscosity index improvers for lubrication oi

Details Block copolymers as viscosity index improvers for lubrication oi Block copolymers as viscosity index improvers for lubrication oi

1973-03-14

1977-07-19

Hamrock, William F.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

C-metal

260880B, 526 25, 526 26, C08F29300

Patent

active

040369102

ABSTRACT:
Certain two-block copolymers have been found to be highly effective viscosity index improving additives for mineral oils and are especially effective at elevated temperatures.

REFERENCES:
patent: 3595942 (1971-07-01), Wald et al.
patent: 3598886 (1971-08-01), Hoag et al.
patent: 3696088 (1972-10-01), DeVault
patent: 3700633 (1972-10-01), Wald et al.
patent: 3700748 (1972-10-01), Winkler
patent: 3706817 (1972-12-01), Wald et al.
patent: 3756977 (1973-09-01), Yoshimoto et al.

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