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. 30, 1991
Filed:
Feb. 09, 1990
Applicant:
Inventor:
Gian L Fagan, Benicia, CA (US);
Assignee:
Chevron Research and Technology Company, San Francisco, CA (US);
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
C10M / ;
U.S. Cl.
CPC ...
252 18 ; 252 25 ; 252 / ; 252 / ;
Abstract
Disclosed is complex tolylene polyurea-thickened grease containing less than 7 parts per million 2,4-diaminotoluene and a process for making said grease comprising reacting an isocyanate, a polyamine and monoamine with a major portion of a lubricating oil and thereafter adding an alkaline earth metal oxide or hydroxide and a carboxylic acid anhydride containing 2 to 20 carbon atoms to said mixture and thereafter milling said mixture to the consistency of grease.
Fagan, Gian. (1991). Complex tolylene polurea grease composition and process (U.S. Patent No. 5011617). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/5011617
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile