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. 10, 1983
Filed:
Aug. 20, 1981
Ritchie A Wessling, Midland, MI (US);
Larry D Yats, Clare, MI (US);
William O Perry, Lake Jackson, TX (US);
The Dow Chemical Company, Midland, MI (US);
Abstract
Water-compatible compositions are described which consist essentially of at least one resinous compound whose backbone is linear or substantially linear and consists essentially of at least one oxyaryleneoxyalkylene or oxyaryleneoxy(1,3-(2-hydroxy)alkylene) unit and which bears at least two functional organic moieties through which cross-linking can occur (preferably groups having active hydrogen, more preferably aliphatic hydroxyl groups) and at least one terminal carbamoylpyridinium group covalently bonded through the ring nitrogen atom combined with an acid curable cross-linking agent. The compositions are useful coating compositions which find particular utility in cathodic electrodeposition. The compounds are prepared, for example, by reacting a linear or substantially linear epoxy resin with a carbamoylpyridine in the presence of sufficient amount of a Bronsted acid and water to stabilize the carbamoylpyridinium salt thus formed.