logo

For the Inventor, By the Inventor

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 12378497 B1

PDFFull Text
Date of Patent:
Aug. 05, 2025

Filed:

Oct. 18, 2022

Polypropylene viscosity modifiers and lubricating oils thereof

Applicant:

Exxonmobil Technology and Engineering Company, Baytown, TX (US);

Inventors:

Jingwen Zhang, Houston, TX (US);

John R. Hagadorn, Houston, TX (US);

Jo Ann M Canich, Houston, TX (US);

Peijun Jiang, Katy, TX (US);

Assignee:

ExxonMobil Chemicals Patents Inc., Baytown, TX (US);

Attorney:

ExxonMobil Technology and Engineering Company

Primary Examiner:

Ellen M Mcavoy

Int. Cl.
CPC ...
C10M 143/04 (2006.01); C10M 145/14 (2006.01); C10M 157/00 (2006.01); C10M 169/04 (2006.01); C10M 171/02 (2006.01); C10N 20/02 (2006.01); C10N 20/04 (2006.01); C10N 30/00 (2006.01); C10N 30/02 (2006.01);
U.S. Cl.
CPC ...
C10M 143/04 (2013.01); C10M 145/14 (2013.01); C10M 157/00 (2013.01); C10M 169/041 (2013.01); C10M 171/02 (2013.01); C10M 2205/024 (2013.01); C10N 2020/02 (2013.01); C10N 2020/04 (2013.01); C10N 2030/02 (2013.01); C10N 2030/68 (2020.05);
Abstract

In some embodiments, a lubricating oil includes at least 50 wt % of a base oil, based on total weight of the lubricating oil. The lubricating oil includes at least 0.1 wt % of a polypropylene homopolymer having a racemic dyad content of about 60% to about 99% and a number average molecular weight (by GPC DRI) of about 10,000 g/mol to about 250,000 g/mol, wherein a total amount of the base oil and the polypropylene homopolymer does not exceed 100 wt %.

Find Patent Forward Citations

Quick Actions:

Zhang, Jingwen. (2025). Polypropylene viscosity modifiers and lubricating oils thereof (U.S. Patent No. 12378497). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/12378497

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

Loading…