Polyurea grease composition

Details Polyurea grease composition Polyurea grease composition

1992-12-09

1993-08-24

Howard, Jacqueline V.

Compositions

Electrolytes for electrical devices

252 515R, C10M11508

Patent

active

052385892

ABSTRACT:
A polyurea grease composition is prepared by reacting a diisocyanate with a monoamine and a diamine in the presence of a polyoxyethylene/polypropylene glycol copolymer having a molecular weight of 300 to 15,000 or an alkoxylated alkylene diamine having a molecular weight of 500 to 18,000. The resulting grease composition demonstrates resistance to water absorption and improved yield (low penetration number vs. high).

REFERENCES:
patent: 4104177 (1978-08-01), Caruso
patent: 4115284 (1978-09-01), Kinoshita et al.
patent: 4481367 (1984-11-01), Knopf
patent: 4521330 (1984-06-01), Olstowski et al.
patent: 5094765 (1992-03-01), De Rosa et al.
patent: 5110489 (1992-05-01), Stadler et al.
patent: 5145591 (1992-09-01), Kinoshita et al.

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