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:
Nov. 02, 2021
Filed:
Mar. 14, 2018
Applicant:
Dow Corning Toray Co., Ltd., Tokyo, JP;
Inventor:
Hiroshi Ito, Tochigi, JP;
Assignee:
Dow Corning Toray Co., Ltd., Tokyo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C10M 107/38 (2006.01); C10N 20/02 (2006.01); C10N 20/04 (2006.01); C10N 20/06 (2006.01); F16C 33/10 (2006.01);
U.S. Cl.
CPC ...
C10M 107/38 (2013.01); C10M 2205/022 (2013.01); C10M 2205/024 (2013.01); C10M 2213/0623 (2013.01); C10M 2290/00 (2013.01); C10N 2020/02 (2013.01); C10N 2020/04 (2013.01); C10N 2020/06 (2013.01); F16C 33/10 (2013.01);
Abstract
Grease composition contains (A) a straight-chain perfluoropolyether having a kinematic viscosity of 2-110 mm/s at 40° C., (B) a branched perfluoropolyether having a kinematic viscosity of 2-100 mm/s at 40° C., and (C) a fluorocarbon resin powder having a primary particle size of 1 μm or less, wherein the contained amount of the fluorocarbon resin powder is 25-40 wt % with respect to the weight of the grease composition, and the weight ratio of the straight-chain perfluoropolyether (A) to the branched perfluoropolyether (B) is 15:85 to 70:30.