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:
Mar. 29, 1988
Filed:
May. 29, 1986
Helmut Plum, Taunusstein, DE;
Willibald Paar, Graz, AT;
Vianova Kunstharz, A.G., Werndorf, AT;
Abstract
Crosslinking components for hydroxy and/or primary and/or secondary amino group containing paint binders for the crosslinking of synthetic resins carrying at least two groups capable of ester or amide formation with carboxylic acids. In particular there is disclosed the use of the crosslinking components in compositions for electrodeposition (ED) whereby at 120.degree. C. and above coatings with extraordinary paint performance are obtained. The use of methyl or ethyl esters gives extremely low condensation losses. The crosslinking components are obtained through reaction of one mole of a diisocyanate, preferably at room temperature, in the presence of sodium, or preferably sodium phenolate, as catalyst, with at least one mole of a CH-active alkyl ester of the general formula X--CH.sub.2 --COOR, wherein X is --COOR, --CN or CH.sub.3 --CO-- and R is an alkyl radical with 1 to 8 C-atoms and subsequent reaction of the free isocyanate groups with polyamines of the general formula H.sub.2 N--(R--NH).sub.n --R--NH.sub.2, wherein n is 0 to 3 and/or (poly)aminoalcohols of the formula N.sub.2 H--(R--NH).sub.n --R--OH, wherein n is 0 to 3, or HO-- (R--NH).sub.n --R--OH, wherein n is 1 to 3, and R is an alkylene radical in all cases.