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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 11149228 B1

PDFFull Text
Date of Patent:
Oct. 19, 2021

Filed:

Dec. 11, 2017

Grease compositions and method for making the same

Applicant:

Aktiebolaget Skf, Gothenburg, SE;

Inventors:

Sathwik Chatra Kalsanka Ramakrishna, Nieuwegein, NL;

Dries Muller, Schwaz, AT;

Assignee:

AKTIEBOLAGET SKF, Gothenburg, SE;

Attorneys:

J-Tek Law PLLC

Jeffrey D. Tekanic

Scott T. Wakeman

Primary Examiner:

Ellen M McAvoy

Int. Cl.
CPC ...
C10M 169/02 (2006.01); C10M 169/06 (2006.01); C10M 101/00 (2006.01); C10M 105/32 (2006.01); C10M 119/02 (2006.01); C10M 119/24 (2006.01); C10N 20/04 (2006.01); C10N 30/06 (2006.01); C10N 30/12 (2006.01); C10N 40/02 (2006.01); C10N 40/04 (2006.01); C10N 50/10 (2006.01);
U.S. Cl.
CPC ...
C10M 169/02 (2013.01); C10M 101/00 (2013.01); C10M 105/32 (2013.01); C10M 119/02 (2013.01); C10M 119/24 (2013.01); C10M 169/06 (2013.01); C10M 2203/003 (2013.01); C10M 2205/022 (2013.01); C10M 2205/024 (2013.01); C10M 2205/026 (2013.01); C10M 2205/0206 (2013.01); C10M 2205/0213 (2013.01); C10M 2205/0225 (2013.01); C10M 2205/0245 (2013.01); C10M 2205/0265 (2013.01); C10M 2207/2805 (2013.01); C10M 2217/0446 (2013.01); C10N 2020/04 (2013.01); C10N 2030/06 (2013.01); C10N 2030/12 (2013.01); C10N 2040/02 (2013.01); C10N 2040/04 (2013.01); C10N 2050/10 (2013.01);
Abstract

A grease composition contains a mixture of a lubricating base oil, an ester-terminated polyamide and at least one polyolefin. The ester-terminated polyamide has the formula:R1-O—CO—R2-CO—[NH—R3-NH—CO—R2-CO]-O—R1.R1 contains 4-22 carbon atoms, R2 contains 4-42 carbon atoms, R3 contains 2-9 carbon atoms and n is an integer in the range of 1-20. The grease composition can be used for lubricating a mechanical component having a metal surface and/or for protecting a mechanical component having a metal surface against corrosion, wear and/or fretting.

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