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:
Nov. 10, 1998
Filed:
Oct. 24, 1997
Applicant:
Inventors:
Munmaya K Mishra, Richmond, VA (US);
Raymond G Saxton, Hanover, VA (US);
Assignee:
Ethyl Corporation, Richmond, VA (US);
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
C10M / ; C08F / ;
U.S. Cl.
CPC ...
508469 ; 5263295 ; 5263297 ;
Abstract
The present invention relates to the product(s) of the polymerization of specific combinations of acrylic monomers, and optionally vinyl and/or performance enhancing comonomers, in the presence of an anionic initiator to form copolymers having a narrow molecular weight distribution. Additionally, the invention relates to the use of these copolymers as pour point depressants in lubricating oil formulations.