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High-refraction-index and yellowing-resistant resin and synthesis method thereof

A synthesis method and high refractive index technology, applied in the field of optical resin and its synthesis, can solve the problem that the refractive index affects the contrast and clarity of flat panel displays, and achieve the effects of good application value, good yellowing resistance and low production cost

Inactive Publication Date: 2017-03-29
SHENZHEN DARBOND INTERFACE MATERIALS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

And the refractive index of traditional liquid optically transparent glue is generally below 1.50, and lower refractive index affects the contrast and clarity of flat panel display in strong light environment; Therefore the present invention just provides a kind of optical resin of higher refractive index, The refractive index is 1.50-1.52, which has better yellowing resistance and is used to make higher-end liquid optically transparent adhesives, which has good application value

Method used

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  • High-refraction-index and yellowing-resistant resin and synthesis method thereof
  • High-refraction-index and yellowing-resistant resin and synthesis method thereof
  • High-refraction-index and yellowing-resistant resin and synthesis method thereof

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Experimental program
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Effect test

Embodiment 1

[0032] Accurately weigh 100g of epoxy-modified rosin ester, 6g of hydroxyethyl acrylate, 500g of VORANOL8000LM from DOW Company, 0.1g of polymerization inhibitor p-hydroxyanisole, and 0.01g of catalyst dibutyltin dilaurate, and add them to a three-port thermometer with a thermometer. In the flask, the temperature was raised to 65 degrees, and 22 g of diisocyanate IPDI was added dropwise, and the temperature was controlled at 70-75 degrees, and the reaction was carried out for 2.5 hours. The content of the NCO group was analyzed by an infrared spectrometer, and when the peak of the NCO completely disappeared, the heating reaction was stopped to obtain a rosin ester modified polyurethane acrylate resin.

Embodiment 2

[0034] Accurately weigh 100g of epoxy-modified rosin ester, 4g of hydroxyethyl methacrylate, 800g of ACCLAIM POLYOL 12200N from BAYER company, 0.1g of polymerization inhibitor p-hydroxyanisole, and 0.01g of catalyst dibutyltin dilaurate, and add to the mixture with In the three-necked flask with a thermometer, the temperature was raised to 65 degrees, and 25 g of diisocyanate TDI was added dropwise, the temperature was controlled at 70-75 degrees, and the reaction was carried out for 2 hours. The content of the NCO group was analyzed by an infrared spectrometer, and when the peak of the NCO completely disappeared, the heating reaction was stopped to obtain a rosin ester modified polyurethane acrylate resin.

Embodiment 3

[0036] Accurately weigh 110g of epoxy-modified rosin ester, 10g of hydroxypropyl methacrylate, 600g of ACCLAIM POLYOL 12200N from BAYER company, 0.1g of polymerization inhibitor p-hydroxyanisole, and 0.01g of catalyst dibutyltin dilaurate, and add to the mixture with In the three-necked flask with a thermometer, the temperature was raised to 65 degrees, and 30 g of diisocyanate MDI was added dropwise, the temperature was controlled at 70-75 degrees, and the reaction was carried out for 3 hours. The content of the NCO group was analyzed by an infrared spectrometer, and when the peak of the NCO completely disappeared, the heating reaction was stopped to obtain a rosin ester modified polyurethane acrylate resin.

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Abstract

The invention provides a hgh-refraction-index and yellowing-resistant resin synthesis method, which comprises: adding 80-110 g of epoxy-modified rosin ester, 4-10 g of hydroxy acrylate, 500-800 g of high molecular weight polyether diol, 0.1 g of a polymerization inhibitor p-methoxyphenol, and 0.01 g of a catalyst dibutyltin dilaurate to a three-necked flask having a thermometer, heating to a temperature of 65 DEG C, adding 18-32 g of diisocyanate in a dropwise manner, controlling the temperature at 70-75 DEG C, carrying out a reaction for 2-3 h, analyzing the NCO group content by using an infrared spectrometer, and stopping the heating reaction when the peak of NCO completely disappears so as to obtain the rosin ester modified polyurethane acrylate resin.

Description

technical field [0001] The invention relates to an optical resin and a synthesis method thereof, which has a relatively high refractive index and good yellowing resistance, can be used in liquid optical transparent adhesives, and belongs to the field of photocurable materials. Background technique [0002] With the continuous upgrading of flat panel display technology, touch screen as a new technology has been continuously applied to mobile phones, computers and other products, especially driven by the tide of mobile Internet, more and more flat panel display products use capacitive touch screen control technology. Capacitive touch technology has advantages over traditional resistive touch technology in terms of multi-touch design, gesture recognition, response speed, sensitivity, durability, and optical characteristics. According to the current production process, capacitive touch screens need to use an adhesive material to assemble each layer of transparent materials duri...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08G18/75C08G18/76C08G18/73C08G18/67C08G18/48
CPCC08G18/755C08G18/67C08G18/672C08G18/73C08G18/7614C08G18/7671C08G18/48
Inventor 潘光君万炜涛陈田安
Owner SHENZHEN DARBOND INTERFACE MATERIALS
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