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:
May. 12, 2015
Filed:
Mar. 28, 2012
David Schimpff, Dry Ridge, KY (US);
Bruce Dunham, West Chester, OH (US);
William Frisz, Cincinnati, OH (US);
Jun O. Zhang, Mason, OH (US);
David Schimpff, Dry Ridge, KY (US);
Bruce Dunham, West Chester, OH (US);
William Frisz, Cincinnati, OH (US);
Jun O. Zhang, Mason, OH (US);
DuBois Chemicals, Inc., Sharonville, OH (US);
Abstract
Embodiments of a method of pretreating a metal substrate prior to painting comprise applying a first coating solution onto the metal substrate wherein the first coating solution comprises polyaniline particles at a pH less than 7 to yield a first coating on the metal substrate, rinsing the metal substrate to remove unreacted polyaniline particles, and applying a second coating solution post-rinse which comprises at least one acid and a silane composition at a pH less than 7 to yield a second coating on the metal substrate.