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:
Aug. 26, 2025
Filed:
Feb. 23, 2022
Applicant:
Dow Global Technologies Llc, Midland, MI (US);
Inventors:
Yaokun Han, Shanghai, CN;
Martin R. Greaves, Baar, CH;
Paolo Sabatino, Middelburg, NL;
Ingrid Govaert, Goes, NL;
Assignee:
Dow Global Technologies LLC, Midland, MI (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C10M 107/34 (2006.01); C10M 111/04 (2006.01); C10N 20/00 (2006.01); C10N 20/02 (2006.01); C10N 20/04 (2006.01);
U.S. Cl.
CPC ...
C10M 107/34 (2013.01); C10M 111/04 (2013.01); C10M 2203/003 (2013.01); C10M 2209/1033 (2013.01); C10M 2290/00 (2013.01); C10N 2020/017 (2020.05); C10N 2020/02 (2013.01); C10N 2020/04 (2013.01);
Abstract
A composition of matter that exhibits two phases at lower temperatures (for example, less than about 50° C.) but only one-phase at higher temperatures (for example, above about 90° C.) is disclosed. The compositions comprise a low viscosity base oil which is a hydrocarbon oil and the high viscosity base oil which is a triblock polyalkylene glycol derived from a copolymer of 1, 2-propylene oxide and 1, 2-butylene oxide in which the PO/BO ratio is from 25/75 to 90/10 percent by weight and has a polymerization sequence of PO-BO-PO.