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Hyperbranched structured anti-dazzle polyurethane acrylate UV cured resin and preparation method therefor

A polyurethane acrylate and hyperbranched polyester technology, applied in the field of polyurethane acrylate, can solve the problems of poor transparency, insufficient hardness, and inability to form a space network structure, etc., and achieve short curing time, low energy consumption, and stable anti-glare effect Effect

Active Publication Date: 2018-10-16
无锡博加电子新材料有限公司 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Chinese invention patent application 2014105797477 discloses a synthetic method of polyurethane coating for anti-glare. The inventive method is simple, low in cost, and the synthetic polyurethane coating has good stability and excellent anti-glare performance, but the coating has poor transparency
Chinese invention patent application 201710037727.0 discloses a self-repairing anti-glare water-based polyurethane coating, which has good transparency, but since the coating is completely linear polyurethane prepared from diol and diisocyanate, it cannot form a dense spatial network structure, and the coating Good flexibility, but not enough hardness

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0041] Weigh 177.84g (0.8mol) of isophorone diisocyanate and place it in a reaction kettle, add 0.02g of catalyst dibutyltin dilaurate, heat to 50°C, and blow nitrogen. 92.50 g (0.8 mol) of hydroxyethyl acrylate was added, the addition time was 4 hours, and the reaction was kept for 5 hours. Preparation of isocyanate-terminated acrylate dimers. Weigh 13.62g (0.1mol) of pentaerythritol and 53.65g (0.4mol) of dimethylol propionic acid and place them in a reaction kettle, add 0.06g of catalyst p-toluenesulfonic acid, heat to 80°C, pass nitrogen gas for 0.5 hours, and depressurize Vacuum reaction for 3 hours. Preparation of a generation of hydroxyl-terminated hyperbranched polyester. Add 0.02g of catalyst dibutyltin dilaurate, blow nitrogen, add 270.34g (0.8mol) of cyanate-terminated acrylate dimer prepared above into the reactor, and keep it warm for 4 hours. The polyurethane acrylate with A component hyperbranched polyester as the core is obtained.

[0042] Weigh 66.69g (0.3...

Embodiment 2

[0045] Weigh 177.84g (0.8mol) of isophorone diisocyanate and place it in a reaction kettle, add 0.02g of catalyst dibutyltin dilaurate, heat to 50°C, and blow nitrogen. 92.50 g (0.8 mol) of hydroxyethyl acrylate was added, the addition time was 4 hours, and the reaction was kept for 5 hours. Preparation of isocyanate-terminated acrylate dimers. Weigh 13.62g (0.1mol) of pentaerythritol and 53.65g (0.4mol) of dimethylol propionic acid and place them in a reaction kettle, add 0.06g of catalyst p-toluenesulfonic acid, heat to 80°C, pass nitrogen gas for 0.5 hours, and depressurize Vacuum reaction for 3 hours. Preparation of a generation of hydroxyl-terminated hyperbranched polyester. Add 0.02g of catalyst dibutyltin dilaurate, blow nitrogen, add 270.34g (0.8mol) of cyanate-terminated acrylate dimer prepared above into the reactor, and keep it warm for 4 hours. The polyurethane acrylate with A component hyperbranched polyester as the core is obtained.

[0046] Weigh 66.69g (0.3...

Embodiment 3

[0049] Weigh 355.68g (1.6mol) of isophorone diisocyanate and place it in a reaction kettle, add 0.02g of catalyst dibutyltin dilaurate, heat to 50°C, and blow nitrogen. 185.00 g (1.6 mol) of hydroxyethyl acrylate was added, the addition time was 4 hours, and the reaction was kept for 5 hours. Preparation of isocyanate-terminated acrylate dimers. Weigh 13.62g (0.1mol) of pentaerythritol and 160.95g (1.2mol) of dimethylolpropionic acid into a reaction kettle, add 0.06g of catalyst p-toluenesulfonic acid, heat to 80°C, pass nitrogen gas for 0.5 hours, and depressurize Vacuum reaction for 3 hours. Preparation of 2-generation hydroxyl-terminated hyperbranched polyesters. An additional 0.02 g of catalyst dibutyltin dilaurate was added, nitrogen gas was passed, and 540.68 g (1.6 mol) of the above-prepared cyanate-terminated acrylate dimer was added into the reaction kettle, and the reaction was kept for 4 hours. The polyurethane acrylate with A component hyperbranched polyester as...

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Abstract

The invention discloses a hyperbranched structured anti-dazzle polyurethane acrylate UV cured resin composition and a preparation method therefor. The hyperbranched structured anti-dazzle polyurethaneacrylate UV cured resin composition disclosed by the invention contains the following ingredients in percentage by weight: 10-80% of polyurethane acrylate with hyperbranched polyester as a core and 20-90% of polyurethane acrylate with hyperbranched polyether as a core. The hyperbranched structured anti-dazzle polyurethane acrylate UV cured resin composition disclosed by the invention can achievean excellent anti-dazzle effect without additionally adding auxiliaries or carrying out surface treatment, has good light transmittance and has both hardness and flexibility.

Description

technical field [0001] The invention relates to the field of polyurethane acrylate, in particular to a hyperbranched structure anti-glare polyurethane acrylate UV curing resin and a preparation method thereof. Background technique [0002] With the upgrading of social industrial level and people's consumption level, consumers have more and more strict requirements on the appearance, touch and experience comfort of daily necessities and industrial products. Many high-end products have begun to attract the attention of the public with their beautiful and comfortable appearance and touch. The application of anti-glare coating also arises at the historic moment. With its beautiful appearance and comfortable human physiological touch, it has gradually occupied a place in the automotive interior, electronic products and other industries, and has gradually gained more favor. Due to its environmental protection, no VOC emissions, low energy consumption, fast curing and other advan...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08G18/42C08G18/48C08G18/67C08G18/75C08G63/20C08G63/87C08G65/26C08J7/04C08J7/12C09D175/14C08L67/02
CPCC08G18/4283C08G18/4854C08G18/672C08G18/755C08G63/20C08G63/87C08G65/2603C08G65/2654C08J7/123C08J2367/02C08J2475/14C08L2205/025C09D175/14C08J7/0427C08G18/42C08G18/48C08L75/14
Inventor 刘国强岳利培李卫东白永平
Owner 无锡博加电子新材料有限公司
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