US 2016/0108277 A1 · RADIATION CURABLE PAINT COMPOSITION AND MOLDED PRODUCT COMPRISING CURED COATING LAYER FORMED THEREFROM

Abstract

The present invention relates to a radiation curable paint composition and a molded product comprising a cured coating layer formed therefrom, and more specifically, to: a radiation curable paint composition comprising a polyfunctional polyurethane acrylate being at least pentafunctional, a mono- or difunctional polyurethane acrylate, a mono-, di- or trifunctional acrylate, a photopolymerization initiator, and a triazine-based UV absorber, wherein physical properties such as adhesion to a metal or plastic substrate, water resistance, moisture resistance, heat resistance, thermal shock resistance and the like are remarkable, and particularly, weather resistance is remarkable, and thus it is useful for a hard coating for a plastic substrate, and particularly, for an automobile headlamp; and a molded product comprising a cured coating layer formed therefrom.

Claims12

Dependent claims

A photocurable paint composition comprising:

(A) multifunctional polyurethane acrylate having 5 or more functional groups;
(B) monofunctional or difunctional polyurethane acrylate;
(C) monofunctional to trifunctional acrylate;
(D) photo initiator;
(E) triazine-based ultraviolet absorbent having two or more UV absorber groups;
and
(F) organic solvent,
wherein the component E is contained in an amount of 0.01 to 2.5% by weight of the total composition weight.

5 more elements

Dependencies are inferred from the claim text.

Facts

Application

14/894,631Filed 2 Jun 2014

Priority

KR 10-2013-006243531 May 2013

Published

21 Apr 2016

Term ends

Not estimatedThe source records don’t support an estimate.

Classification20 codes

C09D 151/08
Coating compositions based on graft polymers in which the grafted component is obtained by reactions only involving carbon-to-carbon unsaturated…:…
B60Q 1/04
The devices being primarily intended to illuminate the way ahead or to illuminate other areas of way or environments: the devices being headlights
C08G 18/673
Esters of acrylic or alkyl acrylic acid having only one group containing active hydrogen: containing two or more acrylate or alkylacrylate ester…
C08G 18/8175
With unsaturated compounds having only one group containing active hydrogen: with esters of acrylic or alkylacrylic acid having only one group…

Radiation curable paint composition and molded product comprising cured coating layer formed therefrom

Life of this patent

Radiation curable paint composition and molded product comprising cured coating layer formed therefrom

Life of this patent

Abstract

Claims12