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. 27, 1979
Filed:
Feb. 02, 1978
Georgios Pampouchidis, Graz, AT;
Helmut Honig, Graz, AT;
Vianova Kunstharz, A.G., Vienna, AT;
Abstract
Aqueous emulsions of binders for cathodically depositable aqueous coating compositions comprising emulsions of 10 to 99.9 percent by weight of a self-crosslinking polycondensation resin or polymerization resin, and 0.1 to 90 percent by weight of one or more basic urethane component which is the reaction product of (A) 1 mole of polyisocyanate with (B) at least 1 mole dialkylalkanolamine and a monohydroxyalkyl(meth)acrylate and/or a monohydroxyalkoxy(meth)acrylate and/or a monohydroxyallylether of a polyol. Component (B) whch optionally can include a saturated and/or unsaturated fatty alcohol or fatty acid will have an NCO-value of substantially zero. The basic content of the emulsion is at least 0.5, and the double bond number is at least 0.5. The emulsions have excellent stability without use of additional emulsifiers and films obtained from coating compositions containing the emulsions have good adhesion characteristics, cure at relatively low temperatures and relatively short curing times to provide films having excellent resistance to water, chemicals, and corrosion.