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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.:

US 11878741 B1

PDFFull Text
Date of Patent:
Jan. 23, 2024

Filed:

Jul. 09, 2019

Multi-layer sliding member and automobile rack-and-pinion steering apparatus using same

Applicant:

Oiles Corporation, Tokyo, JP;

Inventors:

Takuya Maeda, Kanagawa, JP;

Tsuyoshi Hashizume, Kanagawa, JP;

Assignee:

Oiles Corporation, Tokyo, JP;

Attorney:

Nixon & Vanderhye P.C.

Primary Examiner:

Christopher M Rodd

Int. Cl.
CPC ...
B62D 3/12 (2006.01); C08K 3/04 (2006.01); C08K 3/30 (2006.01); C08L 27/18 (2006.01); C08L 67/03 (2006.01); C08L 71/10 (2006.01); C08L 79/08 (2006.01); F16C 33/14 (2006.01); F16C 33/20 (2006.01); C09D 127/18 (2006.01); F16C 33/12 (2006.01); F16H 55/26 (2006.01);
U.S. Cl.
CPC ...
B62D 3/126 (2013.01); C08K 3/04 (2013.01); C08K 3/30 (2013.01); C08L 27/18 (2013.01); C08L 67/03 (2013.01); C08L 71/10 (2013.01); C08L 79/08 (2013.01); C09D 127/18 (2013.01); F16C 33/128 (2013.01); F16C 33/145 (2013.01); F16C 33/201 (2013.01); F16C 33/203 (2013.01); C08K 2003/3009 (2013.01); F16C 2208/32 (2013.01); F16C 2208/48 (2013.01); F16H 55/26 (2013.01);
Abstract

A multi-layer sliding member () includes a backing plate () formed from a steel plate, a copper-plated or nickel-plated layer () formed on one surface () of the backing plate (), a porous sintered metal layer () integrally bonded to the surface () of the backing plate () through the layer (), and a coating layer () filling pores () and coating on the surface () of the porous sintered metal layer () and formed from a synthetic resin composition. The synthetic resin composition contains a PTFE as a main component and further contains, as additives, 5 to 30% by mass of a thermotropic liquid crystal polymer, 5 to 12% by mass of a polyarylketone resin, 5 to 12% by mass of a melt moldable fluororesin, and 1 to 5% by mass of a polyimide resin.

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