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:
Aug. 26, 2008
Filed:
Mar. 26, 2004
Olga E. Shmakova-lindeman, Houston, TX (US);
Olga E. Shmakova-Lindeman, Houston, TX (US);
Nalco Company, Naperville, IL (US);
Abstract
A paraffin inhibitor comprising a polymer composed of about (a) 1 to about 98 weight percent of one or more C-Calkyl esters of acrylic acid; (b) about 1 to about 98 weight percent of one or more C-Calkyl esters of methacrylic acid; (c) and about 1 to about 30 weight percent of one or more unsaturated monomers selected from the group consisting of (meth)acrylamide monomers, vinyl aromatic monomers, vinyl cycloalkyl monomers, vinyl heterocyclyl monomers, vinyl esters of aliphatic acids, vinyl esters of aromatic acids, vinyl esters of heterocyclic acids, maleimide and maleic anhydride wherein the alkyl ester portion of one of (a) or (b) is C-Calkyl, compositions comprising the polymer and methods of using the polymer to inhibit the deposition of paraffin from oil.