Process for preparing a dispersant/VI improver and product prepa

Details Process for preparing a dispersant/VI improver and product prepa Process for preparing a dispersant/VI improver and product prepa

1991-03-21

1992-09-15

McAvoy, Ellen

Compositions

Electrolytes for electrical devices

252 56R, 525192, 525193, 525285, 525301, 525384, 525385, C10M14900

Patent

active

051475707

ABSTRACT:
Dispersant/VI improver lubricating oil additives are produced by reacting a star polymer with an alpha, beta unsaturated carboxylic acid or derivative to form an activated star polymer, which is then reacted with (a) at least one compound of general formula

REFERENCES:
patent: 4077893 (1978-03-01), Kiovsky
patent: 4409120 (1983-10-01), Martin
patent: 5049294 (1991-09-01), Van Zon et al.

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