Patent ID: 6824875
Filing Date: 2004-11-30
Classification: C08J,C09D,Y10T

Abstract:
A coating comprising:a primer coat adhering to a substrate to be coated; and a scratch-resistant coat adhering to the primer coat, wherein the primer coat contains a cured epoxy resin consisting of, one or more hardeners, one or more multi-epoxy functional compounds, and optionally an additive selected from the group consisting of dyestuffs, flow-control agents, inorganic fillers, organic fillers, UV stabiliser, infrared absorbers and combinations thereof, further wherein the scratch-resistant coat consists of, one or more hydrolysable silanes containing one or more epoxy groups, optionally a lewis base, optionally a surfactant, optionally an aromatic polyol, optionally a particulate material selected from the group consisting of oxide or oxide hydrate of Si, Al, Ti, Zr, Zn, Sn or Ce with a particle size in the range from 2 to 50 nm, and optionally at least one compound selected from the group consisting of Si(OCH3)4, Si(OC2H5)4, CH3â€”Si(OC2H5)3, (CH3)2Si(OCH3)2 and (CH3)2Si(OC2H5)2.