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:
Jul. 06, 2010
Filed:
Mar. 08, 2005
Christopher Kolp, Richmond Heights, OH (US);
Matthew D. Gieselman, Willoughby Hills, OH (US);
Renee A. Eveland, Concord Township, Lake County, OH (US);
Philip Pike, Concord Township, Lake County, OH (US);
John K. Pudelski, Cleveland Heights, OH (US);
Michael J. Covitch, Cleveland Heights, OH (US);
Christopher Friend, Bobbersmill, GB;
Christopher Kolp, Richmond Heights, OH (US);
Matthew D. Gieselman, Willoughby Hills, OH (US);
Renee A. Eveland, Concord Township, Lake County, OH (US);
Philip Pike, Concord Township, Lake County, OH (US);
John K. Pudelski, Cleveland Heights, OH (US);
Michael J. Covitch, Cleveland Heights, OH (US);
Christopher Friend, Bobbersmill, GB;
The Lubrizol Corporation, Wickliffe, OH (US);
Abstract
A composition of the reaction product of (a) an isobutylene-diene copolymer having thereon groups containing carboxylic acid functionality or reactive equivalent thereof, derived from an α,β-unsaturated carboxylic compound; and (b) an amine component comprising at least one aromatic amine containing at least one N—H group capable of condensing with said carboxylic acid functionality, is a useful dispersant viscosity modifier.