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:
Mar. 03, 2015
Filed:
Jul. 23, 2010
Martin R. Greaves, Hirzel, CH;
Ronald Vanvoorst, Vogelwaarde, NL;
Marinus Meertens, Terneuzen, NL;
Nadjet Khelidj, Thalwil, CH;
Evelyn Zaugg-hoozemans, Horgen, CH;
Martin R. Greaves, Hirzel, CH;
Ronald Vanvoorst, Vogelwaarde, NL;
Marinus Meertens, Terneuzen, NL;
Nadjet Khelidj, Thalwil, CH;
Evelyn Zaugg-Hoozemans, Horgen, CH;
Dow Global Technologies LLC, Midland, MI (US);
Abstract
Certain polyalkylene glycols, useful as lubricant additives, are soluble with all four types of hydrocarbon base oils (Groups I-IV) at a wide variety of ratios of oil to polyalkylene glycol and under a variety of conditions. These polyalkylene glycols are prepared by reacting a C8-C20 alcohol and a mixed butylene oxide/propylene oxide feed, wherein the ratio of butylene oxide to propylene oxide ranges from 3:1 to 1:1. The invention provides a means of providing desirable lubricant compositions which may pose fewer environmental problems.