The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jan. 31, 2023
Filed:
Mar. 05, 2019
Dow Global Technologies Llc, Midland, MI (US);
Yaokun Han, Shanghai, CN;
Martin R. Greaves, Baar, CH;
Yong Zhao, Shanghai, CN;
Cheng Shen, Shanghai, CN;
Tao Wang, Shanghai, CN;
Jieying Chen, Shanghai, CN;
DOW GLOBAL TECHNOLOGIES LLC, Midland, MI (US);
Abstract
The present disclosure provides A lubricant composition comprises an antioxidant; and an esterified polyalkylene glycol: R[O(RO)(RO)(C═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.