초록 ▼

An environmentally friendly lubricating grease composition as well as several processes for preparing the grease composition is desecribed which comprises (A) a base oil wherein the base oil is a natural oil or synthetic triglyceride of the formula [Figure] wherein R1, R2 and R3 are aliphatic groups

An environmentally friendly lubricating grease composition as well as several processes for preparing the grease composition is desecribed which comprises (A) a base oil wherein the base oil is a natural oil or synthetic triglyceride of the formula [Figure] wherein R1, R2 and R3 are aliphatic groups that contain from about 7 to about 23 carbon atoms and (B) a thickener wherein the thickener (B) is a reaction product of (B1) a metal based material and (B2) a carboxylic acid or its ester, wherein the metal based material (B1) comprises a metal oxide, metal hydroxide, metal carbonate or metal bicarbonate, wherein the metal is an alkali or alkaline earth metal and wherein the carboxylic acid (B2) is of the formula R4(COOR5)n where R4 is an aliphatic or hydroxy substituted aliphatic group that contains from 4 to about 29 carbon atoms, R5 is hydrogen or an aliphatic group containing from 1 to 4 carbon atoms and n is an integer of from 1 to 4, wherein the equivalent ratio of (B1):(B2) is from about 0.70-1.10 and wherein the weight ratio of the base oil to the sum of the metal based material and the carboxylic acid is from 50:50 to 95:5.

대표청구항 ▼

An environmentally friendly lubricating grease, comprising; (A) a base oil wherein the base oil is a natural oil or synthetic triglyceride of the formula [Figure] wherein R1, R2 and R3 are aliphatic groups that contain from about 7 to about 23 carbon atoms and (B) a thickener wherein the thickener (

An environmentally friendly lubricating grease, comprising; (A) a base oil wherein the base oil is a natural oil or synthetic triglyceride of the formula [Figure] wherein R1, R2 and R3 are aliphatic groups that contain from about 7 to about 23 carbon atoms and (B) a thickener wherein the thickener (B) is a reaction product of (B1) a metal based material and (B2) a carboxylic acid or its ester, wherein the metal based material (B1) comprises a metal oxide, metal hydroxide, metal carbonate or metal bicarbonate, wherein the metal is an alkali or alkaline earth metal and wherein the carboxylic acid (B2) is of the formula R4(COR5)n wherein R4 is an aliphatic group that contains from 4 to about 29 carbon atoms, R5 is hydrogen or an aliphatic group containing from 1 to 4 carbon atoms and n is an integer of from 1 to 4.