Ashless mannich despersants, their preparation, and their use

Details Ashless mannich despersants, their preparation, and their use Ashless mannich despersants, their preparation, and their use

1993-06-16

1995-07-18

Johnson, Jerry D.

Compositions

Electrolytes for electrical devices

564346, 564355, 564367, 564368, C10M15916

Patent

active

054338751

ABSTRACT:
Ashless dispersants are formed using polymers of propylene characterized in that they are liquid substantially linear polymers, they have stereo-irregularity in the polymer chain, at least 60 mol percent of the polymer has a terminal vinylidene group and, optionally, the polymer contains up to 25 mol percent of ethylene or a C.sub.4 to C.sub.10 monoolefin polymerized into the polymer chains.

REFERENCES:
patent: 3985802 (1976-10-01), Piasek et al.
patent: 4025316 (1977-05-01), Stover
patent: 4088586 (1978-05-01), Wilgus et al.
patent: 4814540 (1989-03-01), Watanabe et al.
patent: 5017299 (1991-05-01), Gutierrez et al.
patent: 5186851 (1993-02-01), Gutierrez et al.
patent: 5200103 (1993-04-01), Song et al.
patent: 5268115 (1993-12-01), Gutierrez et al.

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