Organic acid salts as thickeners

Details Organic acid salts as thickeners Organic acid salts as thickeners

C - Chemistry, Metallurgy

10

M

C10M 117/06 (2006.01) C10M 117/02 (2006.01) C10M 117/04 (2006.01) C10M 121/04 (2006.01) C10M 123/02 (2006.01) C10M 141/06 (2006.01) C10M 169/00 (2006.01) C10M 173/00 (2006.01)

Patent

CA 2500968

The invention provides a grease composition comprising a reaction product of a stable dispersion of a metal hydroxide with a number average particle size in the range 20 nanometres to 2 micrometres, a surfactant with a HLB of less than 10, a mono- and/or poly- carboxylic acid, and an oil of lubricating viscosity. The method of preparing a grease composition is also disclosed with benefits including a reduction in reaction time, amount of foam produced and environmental hazards.

L'invention concerne une composition de graisse comprenant un produit de réaction d'une dispersion stable d'un hydroxyde métallique avec une granulométrie moyenne en nombre entre 20 nanomètres et 2 micromètres, un tensioactif avec un HLB inférieur à 10, un acide mono- et/ou polycarboxylique, et une huile de viscosité lubrifiante. L'invention concerne aussi le procédé de préparation d'une composition de graisse, dont les bénéfices consistent en une réduction du temps de réaction, de la quantité de mousse produite et des dangers pour l'environnement.

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