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:
Sep. 03, 2002
Filed:
Sep. 06, 2000
Applicant:
Inventors:
Ronald J. Muir, West Hill, CA;
Theo I. Eliades, Scarborough, CA;
Leonard Matthews, New Milford, CT (US);
Assignee:
Crompton Corporation, Middlebury, CT (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C01M / ; C01M / ; C01M / ;
U.S. Cl.
CPC ...
C01M / ; C01M / ; C01M / ;
Abstract
An overbased calcium sulfonate detergent having a high viscosity is characterized by forming a clear solution in lubricating oil, having a TBN of about 400 or more, and having a viscosity of at least 180 mm /s at 100° C. The high viscosity of the detergent allows for reduction in expensive high viscosity oil components of marine cylinder oils while maintaining selected TBN and viscosity parameters in the finished oil.