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. 02, 2004
Filed:
Feb. 20, 2002
Ding Yu Chung, Rochester Hills, MI (US);
E.I. du Pont de Nemours and Company, Wilmington, DE (US);
Abstract
This invention is directed to an improved aqueous cathodic electrocoating composition and a method for the electrodeposition of this composition; the composition comprises a cathodic electrodepositable composition comprising a binder of (a) a cathodically electrodepositable film forming resin and (b) a polyisocyanate crosslinking agent blocked with a compound that is non-hazardous and non-air polluting, such as, an alkoxy alkanol or an alkyl alcohol; wherein the improvement comprises the use of 0.1-5.0% by weight, based on the weight of the binder, of a water miscible amine acid zwitterion additive which is the reaction product of an amine acid and an alkylglycidy ether.