Lubricants containing salts of hydroxyalkane phosphonic acids

Details Lubricants containing salts of hydroxyalkane phosphonic acids Lubricants containing salts of hydroxyalkane phosphonic acids

C - Chemistry, Metallurgy

10

M

253/67

C10M 137/12 (2006.01) C10M 141/10 (2006.01) C10M 161/00 (2006.01) C10M 163/00 (2006.01)

Patent

CA 2009488

This invention relates to lubricating compositions containing hydroxyalkane phosphonic acids and derivatives thereof. Hydroxyalkane phosphonic acids in the present invention can be reacted to form salts with basic materials, including detergents, dispersants and amines. These materials can be particularly useful in lubricating compositions to improve anti-wear and extreme pressure properties of lubricating formulations. The hydroxyalkane phosphonic acid is represented by the following formula: (see fig.) wherein Y is a phosphonic acid group or hydrogen, and R is alkyl from 1 to about 100 carbon atoms.

Cette invention concerne des compositions lubrifiantes contenant des acides hydroxyalkylphosphoniques et des dérivés correspondants. On peut faire réagir les acides hydroxyalkylphosphoniques de cette invention afin de former des sels avec des matières de base, parmi lesquelles des détergents, des dispersants et des amines. Ces matières peuvent être particulièrement utiles dans des compositions lubrifiantes, afin d'améliorer les propriétés d'anti-usure et de résistance aux très hautes pressions de formulations lubrifiantes. L'acide hydroxyalkylphosphonique est représenté par la formule suivante : (voir fig.), dans laquelle Y est un groupement acide phosphonique ou un atome d'hydrogène, et R est un alkyle comportant de 1 à 100 atomes de carbone.

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