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:
Dec. 21, 2004
Filed:
Oct. 24, 2002
Rajat K. Agarwal, Rochester Hills, MI (US);
Brian D. Bammel, Rochester Hills, MI (US);
William E. Fristad, Rochester Hills, MI (US);
Gregg W. Rossier, Martinsville, IN (US);
Elizabeth J. Siebert, Troy, MI (US);
Zhiqi Yang, Troy, MI (US);
Henkel Kommanditgesellschaft auf Aktien, Dueseldorf, DE;
Abstract
Autodeposited coatings useful for protecting metal surfaces and in production of rubber-to-metal composites are obtained by curing adducts based on epoxy resins which are adhered to the metal surface. One or more epoxy resins, such as for example, the combination of a diglycidyl ether of bisphenol A and a flexibilizing epoxy resin, may be prereacted to form an adduct of higher average molecular weight than the starting epoxy resins. Said adduct may then be dispersed in water, with the resulting dispersion being used in an autodeposition bath composition.