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:
Mar. 18, 2003
Filed:
May. 11, 2001
Noriaki Omori, Saitama, JP;
Kazuyoshi Namiyama, Saitama, JP;
ExxonMobil Research and Engineering Company, Annandale, NJ (US);
Abstract
The inventions relate to light oil compositions comprising a base oil, not less than 0.01% by volume of a light oil resulting from catalytic cracking and 20 to 200 ppm (on the weight basis) of a lubricity improver, with a total sulfur content of not more than 0.05% by weight, characterized in that the light oil resulting from catalytic cracking contains (1) not less than 25% by volume of bicyclic polycyclic aromatic compounds and (2) not less than 5% by volume of tricyclic polycyclic aromatic compounds. These compositions have a sulfur content of not more than 0.05% by weight and is excellent in lubricant performance.