Dow Global Technolgoies LLC

Rohm and Haas Company

Jieying Chen

Tao Wang

Jing Liu

James Charles Bohling

Shaoguang Feng

Lei Huang

Martin R Greaves

Alvin Michael Maurice

Cheng Shen

Yong Zhao

Longlan Cui

Yaokun Han

Zeyu Zhong

Xiuqing Xu

A lubricant composition that comprises a hydrocarbon base oil, a polar viscosity improver; and an esterified polyalkylene glycol: R[O(RO)(RO)(C&#x2550;O)R], wherein Ris a linear alkyl having 1 to 18 carbon atoms, a branched alkyl having 4 to 18 carbon atoms or an aryl with 6 to 30 carbon atoms; RO is an oxypropylene moiety derived from 1, 2-propylene oxide; RO is an oxybutylene moiety derived from butylene oxide, wherein RO and RO are in a block or a random distribution; Ris a linear alkyl with 1 to 18 carbon atoms, a branched alkyl with 4 to 18 carbon atoms or an aryl with 6 to 18 carbon atoms; n and m are each independently integers ranging from 0 to 20 wherein n+m is greater than 0, and p is an integer from 1 to 4. The lubricant composition may have a viscosity index of at least 150, a kinematic viscosity at 100&#xb0; C. from 2 to 5 centistokes and a kinematic viscosity at &#x2212;20&#xb0; C. of at most 600 centistokes.

Hydrocarbon lubricant compositions and method to make them

A phosphate surfactant composition including a phosphate surfactant formed from a secondary alcohol alkoxylate.

Phosphate surfactant compositions

The present disclosure provides A lubricant composition comprises an antioxidant; and an esterified polyalkylene glycol: R[O(RO)(RO)(C&#x2550;O)R], wherein Ris a linear alkyl having 1 to 18 carbon atoms, a branched alkyl having 4 to 18 carbon atoms or an aryl with 6 to 30 carbon atoms; RO is an oxypropylene moiety derived from 1,2-propylene oxide; RO is an oxybutylene moiety derived from butylene oxide, wherein RO and RO are in a block or a random distribution; Ris a linear alkyl with 1 to 18 carbon atoms, a branched alkyl with 4 to 18 carbon atoms or an aryl with 6 to 18 carbon atoms; n and m are each independently integers ranging from 0 to 20 wherein n+m is greater than 0, and p is an integer from 1 to 4, wherein the antioxidant is present in an amount by weight of at least 0.5% to 20% based upon the weight of the antioxidant and the esterified polyalkylene glycol and the antioxidant is soluble in the esterified polyalkylene glycol in an amount of at least 0.5% by weight. The lubricant composition may be used as an additive to form a hydrocarbon lubricant composition.

Polyalkylene glycol lubricant compositions

Growing community of inventors

Shanghai, China

Jieying Chen