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Ultraviolet Curable Hard Coating Composition

A UV-curable technology, applied in polyurea/polyurethane coatings, coatings, lighting and heating equipment, etc., can solve problems such as coating film peeling and discoloration

Active Publication Date: 2017-11-14
HYUNDAI MOBIS CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, benzotriazole-modified aliphatic urethane acrylate was irradiated at 3,500kJ / m in accelerated weather resistance evaluation (SAE J1960) 2 The phenomenon of peeling off and discoloration of the coating film occurred when the energy was applied

Method used

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  • Ultraviolet Curable Hard Coating Composition
  • Ultraviolet Curable Hard Coating Composition
  • Ultraviolet Curable Hard Coating Composition

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1～4 and comparative example 1～4

[0078] Based on the following Table 1 as components and contents, an ultraviolet curable hard coat coating composition was produced.

[0079] (A) 6-functional aliphatic urethane acrylate oligomer: DM87A of Double Bond Chemical, which is a reactant of isophorone diisocyanate and pentaerythritol triacrylate with a molecular weight of about 1,600 g / mol, was used.

[0080] (B) Benzotriazole-modified aliphatic urethane acrylate oligomer: RUVA-93 of Otsuka Corporation was used.

[0081] (C) Polycarbonate modified aliphatic urethane acrylate: UA5095 from Miyuan Corporation was used.

[0082] (D) Photopolymerization initiator: CP-4 of Miwon Corporation was used.

[0083] (E-1) Bifunctional acrylate monomer: 1,6-hexanediol diacrylate was used.

[0084] (E-2) Trifunctional acrylate monomer: Trimethylolpropane triacrylate was used.

[0085] (E-3) 6-functional acrylate monomer: Dipentaerythritol hexaacrylate (DIPENTAERYTHRITOLHEXAACRYLATE, DPHA) was used.

[0086] (F) Ultraviolet absorber: (hydrazine ...

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Abstract

The UV-curable hard coat coating composition of the present invention comprises: (A) 100 parts by weight of aliphatic urethane acrylate oligomer including 6 or more polymerizable functional groups, (B) benzotriazole-modified urethane acrylate 5 to 20 parts by weight of the oligomer, 5 to 15 parts by weight of (C) polycarbonate-modified urethane acrylate oligomer, and 1 to 10 parts by weight of (D) a photopolymerization initiator.

Description

[0001] Reference description of related patents [0002] This patent application requests that all the disclosures of the Korean patent application with the Korean patent application number 10-2013-0099307, the filing date of August 21, 2013, and the receiving office of the Korean Patent Office be incorporated into this application by reference. Technical field [0003] The present invention relates to an ultraviolet curable hard film coating composition. In more detail, it is applied to the surface of plastic substrates such as polycarbonate. It has excellent chipping resistance, reliability, adhesion, hardness, abrasion resistance and impact resistance, and can be applied to automobile front lighting. An ultraviolet curable hard coat coating composition such as a hard coat for lamp lenses. Background technique [0004] Car headlights (headlights) are lights that illuminate the front so that the car can drive safely at night. The traditional automobile headlamp market uses glass ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09D175/14C09D7/12G02B3/00F21V5/04F21W101/10
CPCC08L2205/025C08L2205/03C09D175/14C09D7/63F21V5/04F21W2102/00G02B3/00C08L75/14C08K5/103B60Q1/04C08J2300/00C08J2475/14C08K5/11C08K5/3472C08L69/00C09D7/48C09D7/65C08J7/046
Inventor 李祯焕全勇金亿金长旭朴圭烨金康洙柳晳化
Owner HYUNDAI MOBIS CO LTD