Photocureable coating and curing method thereof

A light-curing coating and auxiliary light technology, applied in polyester coatings, polyurea/polyurethane coatings, coatings, etc., can solve the problems of slow curing speed and low production efficiency of decorative coatings, improve production efficiency and simplify processes Effect

Inactive Publication Date: 2011-10-19
BYD CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In order to solve the problems of low production efficiency and slow curing speed of decorative coatings in the prior art, the present invention provides a light-cured coating, through which a single-layer coating is formed on the surface of a substrate, and the curing speed is fast, and the color high quality

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0043] This embodiment is used to illustrate the photocurable coating disclosed in the present invention and its curing method.

[0044] With 2.4 parts by weight of cellulose acetate butyrate color chips (CAB color chips, produced by Sun Chemical Company, the average particle diameter is 95nm) with 50 parts by weight of butyl acetate, 55 parts by weight of active monomer (trimethylolpropane triacrylate , the SR351 produced by Sartomer Company) mixed and stirred to obtain a solution containing the coloring agent.

[0045] 100 parts by weight of urethane acrylate resin (aliphatic urethane acrylate, the 6145-100 resin produced by Changxing Chemical Company, the viscosity at 60°C is 4000cps, and the functionality is 6), 100 parts by weight of active monomer (trimethylolpropane Triacrylate (SR351 produced by Sartomer Company) was mixed uniformly with 70 parts by weight of butyl acetate to obtain a solution containing the main resin.

[0046] The above two solutions are mixed, and ...

Embodiment 2

[0051] This embodiment is used to illustrate the photocurable coating disclosed in the present invention and its curing method.

[0052] With 7 parts by weight of cellulose acetate butyrate color chips (CAB color chips, produced by Sun Chemical Company, the average particle diameter is 55nm) and 80 parts by weight of ethylene glycol butyl ether, 80 parts by weight of active monomers (pentaerythritol triacrylate, sand SR444 produced by Dorma Company) was mixed and stirred to obtain a solution containing the coloring agent.

[0053] With 100 parts by weight of polyester acrylate resin (produced by BASF, the viscosity is 4000cps at 60°C, and the functionality is 3.6), 110 parts by weight of active monomer (pentaerythritol triacrylate, SR444 produced by Sartomer Company) and 100 parts by weight Parts of ethylene glycol butyl ether were mixed evenly to obtain a solution containing the main resin.

[0054] The above two solutions are mixed, and add 48 parts by weight of the main ph...

Embodiment 3

[0059] This embodiment is used to illustrate the photocurable coating disclosed in the present invention and its curing method.

[0060] With 5 parts by weight of cellulose acetate butyrate color chips (CAB color chips, produced by Sun Chemical Company, the average particle diameter is 80nm) and 50 parts by weight of organic solvent (acetone: isopropanol: ethylene glycol tert-butyl ether=6:3 : 1), 70 parts by weight of active monomer (1,6 hexanediol diacrylate, SR238 produced by Sartomer Company) were mixed and stirred to obtain a solution containing coloring agent.

[0061] 55 parts by weight of polyurethane acrylate resin (the 6141H-80 resin produced by Changxing Chemical Company, the viscosity at 60°C is 1000cps, and the functionality is 5), 45 parts by weight of polyester acrylate resin (produced by BASF, the viscosity at 60°C is 3000cps, functionality is 3), 90 parts by weight of active monomer (1,6 hexanediol diacrylate, SR238 produced by Sartomer Company) and 90 parts b...

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Abstract

The invention provides a photocureable coating and a curing method thereof. The photocureable coating comprises main resin, a main photoinitiator, an active monomer, a coloring agent and organic solvent, wherein the main resin contains urethane acrylate resin and/or polyester acrylate, the activation wave length of the main photoinitiator ranges from 380 to 430nm, and the coloring agent is an acetic acid butyrate cellulose colored sheet. By adopting the photocureable coating, monolayer of the colored coating is realized, the process steps can be simplified, and the production efficiency is improved; the coating has good performance in various aspects, good apparent performance, and uniform color without dazzling.

Description

technical field [0001] The invention relates to a photocurable paint and a curing method thereof, in particular to a photocurable paint containing pigment and a curing method thereof. Background technique [0002] At present, the shells of electronic products such as mobile phones, digital cameras, and notebook computers need to be coated with paint on the surface after processing and molding for decoration and protection. It is usually required that the painted coating has good surface properties, especially gloss, after curing. [0003] Traditional decorative paints are two-layer, i.e. primer and topcoat. The primer provides good adhesion and tinting effect, and the topcoat provides excellent surface properties such as gloss. When the above-mentioned coating is applied to the product shell, the coating method usually adopted is to apply primer for coloring, and then apply topcoats of different brightness and matteness for protection. This requires two or more processes,...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D175/14C09D167/06C09D7/12B05D3/06
Inventor 刘萌王瑞
Owner BYD CO LTD
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