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:
Mar. 01, 1994
Filed:
Sep. 16, 1992
Applicant:
Inventors:
David Y Chung, Edison, NJ (US);
Antonio Gutierrez, Mercerville, NJ (US);
Mark J Struglinski, Bridgewater, NJ (US);
Assignee:
Exxon Chemical Patents Inc., Linden, NJ (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C08F / ; C10M / ; C10M / ;
U.S. Cl.
CPC ...
525285 ; 525263 ; 525322 ; 525324 ; 5253338 ; 5253339 ; 525343 ; 525381 ; 525383 ; 252 / ;
Abstract
An oil soluble nitrogen containing grafted degraded ethylene copolymers useful as multifunctional viscosity index improvers or modifiers, such as VI improver-dispersant additives. The nitrogen containing grafted degraded ethylene copolymers are grafted with an ethylenically unsaturated carboxylic acid grafting material and the grafted degraded ethylene copolymers are then reacted with at least one polyamine containing one primary amine group and at least one or more secondary amine groups.