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. 20, 2000
Filed:
Feb. 13, 1997
Applicant:
Inventors:
John K Pudelski, South Euclid, OH (US);
Christopher J Kolp, Richmond Hts., OH (US);
Jeffry G Dietz, University Hts., OH (US);
Charles K Baumanis, Geneva, OH (US);
Stuart L Bartley, Wickliffe, OH (US);
James D Burrington, Mayfield Village, OH (US);
Assignee:
The Lubrizol Corporation, Wickliffe, OH (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C08F / ; C08F / ; C08C / ;
U.S. Cl.
CPC ...
525285 ; 525298 ; 525301 ; 525355 ; 525356 ;
Abstract
Methods are revealed for producing polyolefin substituted carboxylic acylating agents having less than 1000 ppm chlorine, and reaction products formed therefrom such as dispersants. The carboxylic acylating agents are formed by reacting a polyolefin having labile halogen content with an .alpha.-.beta. unsaturated carboxylic acid. The products formed in this invention are used in lubricating compositions.