An enhanced biodegradable vegetable oil grease

Details An enhanced biodegradable vegetable oil grease An enhanced biodegradable vegetable oil grease

C - Chemistry, Metallurgy

10

M

C10M 169/00 (2006.01) C10M 105/42 (2006.01) C10M 129/10 (2006.01) C10M 133/16 (2006.01) C10M 133/44 (2006.01)

Patent

CA 2204333

An enhanced biodegradable grease composition that is environmentally friendly, as well as several processes for preparing the grease composition is described which comprises (A) a base oil wherein the base oil is a natural oil or synthetic triglyceride of the formula Image wherein R1, R2 and R3 are aliphatic groups that contain from about 7 to about 23carbon atoms; (B) at least one performance additive comprising (1) an alkyl phenol, (2) a benzotriazole, or (3) an aromatic amine; and (C) a thickener wherein the thickener (C) is a reaction product of (C1) a metal based material and (C2) a carboxylic acid or its ester. The enhanced biodegradable lubricating grease may also contain (D) a viscosity modifier, (E) a pour point depressant, or mixtures of (D) and (E).

Composition de corps gras, améliorée, biodégradable et écologique; on décrit plusieurs méthodes pour préparer cette composition qui renferme (A) une huile de base, dans laquelle l'huile est une huile naturelle ou un triglycéride synthétique de formule Image où R1, R2 et R3 sont des groupes aliphatiques renfermant environ 7 à 23 atomes de carbone; (B) au moins un additif à haut rendement, renfermant (1) un alkylphénol, (2) un benzotriazole ou (3) une amine aromatique; (C) un épaississant qui est le produit de réaction (C1) d'un produit à base de métal et (C2) d'un acide carboxylique ou de son ester. Le corps gras lubrifiant biodégradable amélioré peut également contenir (D) un agent modifiant la viscosité, (E) un améliorant de point d'écoulement, ou un mélange de (D) et (E).

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