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:
Jan. 13, 1987
Filed:
Mar. 28, 1985
Michael G Stevens, Worthington, OH (US);
Rhetta Q Davis, Lake Jackson, TX (US);
The Dow Chemical Company, Midland, MI (US);
Abstract
Novel water-compatible compositions are those of at least one vinyl ester resin whose backbone is linear or substantially linear and consists essentially of at least one terminal olefinically unsaturated group and at least one terminal pyridinium group covalently bonded through the pyridinium nitrogen atom. These novel compositions are useful adhesive and coating compositions which find particular utility in cathodic electrodeposition. The compositions are prepared, for example, by reacting a linear or substantially linear epoxy resin with an unsaturated monocarboxylic acid and then with a pyridine compound in the presence of sufficient amount of a Bronsted acid and water to stabilize the pyridinium salt thus formed.