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:
Apr. 25, 2000
Filed:
May. 19, 1998
Vaman G Kulkarni, Charlotte, NC (US);
Americhem, Inc., Cuyahoga Falls, OH (US);
Abstract
A corrosion inhibiting paint composition comprises from about 1 to 20 parts by weight of a corrosion inhibiting additive mixture comprising 1 to 25 parts by weight of an organic sulfonic acid in a mixture of 75 to 99 parts by weight of butyrolactone; from about 10 to 99 parts by weight of film forming polymer; and from about 0 to 89 parts by weight of a liquid medium selected from the group consisting of water, organic solvents for the film forming polymer and mixtures thereof. Another corrosion inhibiting paint composition comprises from about 1 to 20 parts by weight of a corrosion inhibiting additive mixture comprising 1 to 25 parts by weight of an organic sulfonic acid in a mixture of 75 to 99 parts by weight of butyrolactone; from about 10 to 98.5 parts by weight of film forming polymer; from about 0.5 to 20 parts of an intrinsically conductive polymer; and from about 0 to 89 parts of liquid medium selected from the group consisting of water and organic solvents for the film forming polymer and mixtures thereof. Metal substrates containing a coating composition comprise an organic film forming matrix and an additive mixture comprising organic sulfonic acid and butyrolactone. A method for imparting corrosion resistance to metal substrates comprises providing a layer of a coating composition on at least one surface of the substrate, formed from an organic film forming matrix and an additive mixture comprising an organic sulfonic acid and butyrolactone.