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. 27, 1977
Filed:
Oct. 13, 1976
Robert L Elliott, Scotch Plains, NJ (US);
J Brooke Gardiner, Mountainside, NJ (US);
Exxon Research & Engineering Co., Linden, NJ (US);
Abstract
An oil-soluble, hydrolyzed, anionic-graft polymer of an anionically polymerizable nitrile monomer, preferably a C.sub.3 -C.sub.24 vinyl cyanide monomer, e.g. acrylonitrile, and an anion of an oxidized copolymer of ethylene and at least one C.sub.3 to C.sub.50 alpha monoolefin, e.g. propylene, said anionic-graft polymer in its preferred form containing from about 0.005 to 2% by weight nitrogen and having a number average molecular weight of from about 1000 to 500,000, has utility as a multifunctional V.I. improver and/or dispersant for lubricating oils or as an intermediate for derivatization, as by reaction with a nitrogen compound, to increase the oil additive activity.