초록 ▼

A method is described for forming a pigmented coating on a poorly prepared, old metal surface that cures in less than one minute by exposure to ultraviolet radiation from a xenon lamp and emits extremely low levels of volatile organic compounds so that application can be done safely in a confined sp

A method is described for forming a pigmented coating on a poorly prepared, old metal surface that cures in less than one minute by exposure to ultraviolet radiation from a xenon lamp and emits extremely low levels of volatile organic compounds so that application can be done safely in a confined space.

대표청구항 ▼

[ What is claimed is:] [2.] A method for forming a pigmented organic coating on a metal surface comprising:A. mixing the following components to form a resin mixture(1) a resin that is an aromatic urethane diacrylate, an aliphatic urethane diacrylate, a polyester tetra-acrylate, or an epoxy acrylate

[ What is claimed is:] [2.] A method for forming a pigmented organic coating on a metal surface comprising:A. mixing the following components to form a resin mixture(1) a resin that is an aromatic urethane diacrylate, an aliphatic urethane diacrylate, a polyester tetra-acrylate, or an epoxy acrylate,(2) a photoinitiator that is(a) 2-hydroxy-2-methyl-1-phenyl-1-propanone and diphenyl (2,4,6-trimethylbenzoyl) phosphine oxide in a 1:1 molar ratio,(b) 2-methyl-1-[4-(methylthio)phenyl]-2-(4-morpholinyl)-1-propanone,(c) 2-benzyl-2-(dimethylamino)-1-[4-(4-morpholinyl)phenyl]-1-butanone, or(d) N-cyclopropyl-N'-(1,1-dimethylethyl)-6-(methylthio) -1,3,5-triazine-2,4-diamine, and(3) a photosensitizer that is(a) isopropyl thioxanthone,(b) chlorothioxanthone, or(c) thioxanthone;B. mixing a pigment that is titanium dioxide or a mixture of titanium dioxide and manganese ferrite with said resin mixture to form a spreadable composition wherein the pigment comprises from more than zero to 10 weight percent of the spreadable composition;C. applying said spreadable composition to said metal surface to form a coating thereon; andD. curing said coating with a radiation from a xenon lamp.