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:
Apr. 26, 2005
Filed:
Jan. 30, 2003
Applicants:
Kenneth D. Nelson, Clearlake, CA (US);
Frank Plavac, Mill Valley, CA (US);
Inventors:
Kenneth D. Nelson, Clearlake, CA (US);
Frank Plavac, Mill Valley, CA (US);
Assignee:
Chevron Oronite Company LLC, San Ramon, CA (US);
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
C08G075/00 ;
U.S. Cl.
CPC ...
Abstract
Sulfurized olefin compositions and components are prepared from sulfurizing high methylvinylidene polyisobutylene(s) having at least 25% methylvinylidene and a number average molecular weight in the range of about 120 to about 600, at suitable temperatures and pressures. The resulting sulfurized reaction product and polyisobutyl-1,2-dithiole-4-cyclopentene-3-thione compounds and derivatives are useful in lubricating oils.