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:
Jun. 19, 2018
Filed:
Dec. 22, 2015
Michael White, Braintree, MA (US);
Xinhua LI, Newton, MA (US);
Joseph Mclellan, Quincy, MA (US);
Olivier Schueller, Arlington, MA (US);
Patrick Reust, Somerville, MA (US);
Alan M. Schilowitz, Highland Park, NJ (US);
David J. Baillargeon, Cherry Hill, NJ (US);
Michael White, Braintree, MA (US);
Xinhua Li, Newton, MA (US);
Joseph McLellan, Quincy, MA (US);
Olivier Schueller, Arlington, MA (US);
Patrick Reust, Somerville, MA (US);
Alan M. Schilowitz, Highland Park, NJ (US);
David J. Baillargeon, Cherry Hill, NJ (US);
EXXONMOBIL RESEARCH AND ENGINEERING COMPANY, Annandale, NJ (US);
Abstract
A method for improving wear control in an engine or other mechanical component lubricated with a lubricating oil by using as the lubricating oil a formulated oil. The formulated oil has a composition including a lubricating oil base stock as a major component, and encapsulated microscale particles, as a minor component. The minor component contains no sulfur or phosphorus. The encapsulated microscale particles include an encapsulating material and a core material encapsulated by the encapsulating material. The core material includes at least one metal salt selected from a metal oxide, metal hydroxide, metal carbonate, or mixtures thereof. The encapsulating material is derived from a carboxylic acid selected from an aliphatic carboxylic acid, a cycloaliphatic carboxylic acid, an aromatic carboxylic acid, and mixtures thereof. The lubricating oils are useful in internal combustion engines.