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Optical cement, optical cement film and preparation method

A technology of optical adhesive and photoinitiator, applied in the direction of adhesive, film/sheet adhesive, adhesive additive, etc., can solve the problem of low refractive index, poor reliability, high temperature and low temperature resistance, ultraviolet light resistance and resistance High temperature and high humidity performance, etc., to achieve the effect of high refractive index, high mechanical strength, high mechanical strength

Inactive Publication Date: 2017-07-25
深圳市力邦新材料科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, the existing OCA products have the defect of low refractive index; in addition, because the existing OCA products have poor high-temperature and low-temperature resistance, ultraviolet light resistance and high-temperature and high-humidity resistance, their reliability is poor

Method used

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  • Optical cement, optical cement film and preparation method
  • Optical cement, optical cement film and preparation method
  • Optical cement, optical cement film and preparation method

Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

[0040] The preparation method of described optical glue, comprises the following steps:

[0041] The optical glue is prepared by mixing liquid rubber, acrylic modified resin, tackifying resin, photoinitiator and acrylate monomer.

[0042] In the preparation process of the optical adhesive of the technical solution of the present invention, the acrylic monomer is divided into two parts, which are marked as the first acrylic monomer and the second acrylic monomer: first, the photoinitiator and the first One part of acrylate monomer is mixed at room temperature, so that the photoinitiator is completely dissolved in the acrylate monomer, and A mixed solution is obtained; then the acrylic / methacrylic acid modified resin, liquid rubber and the second part of acrylate monomer Mix the body and heat it to 90°C, then add the tackifying resin, stir to mix the different components evenly, then cool to room temperature, add the storage stabilizer to prepare the B mixture; slowly add A to B, ...

Embodiment 1

[0054] Different composition distribution ratio in the embodiment 1 of table 1

[0055]

[0056]

[0057] Preparation method of optical adhesive film:

[0058] Step 1: Mix the quantitative 1-hydroxy-cyclohexyl-phenyl ketone and hydroxypropyl methacrylate shown in Table 1 for 30 minutes at room temperature. After all solid substances are completely dissolved, mark it as A mixing liquid;

[0059] The second step: mix the quantitative acrylic-modified polyisoprene, liquid polybutadiene, and isobornyl acrylate shown in Table 1 and heat to 90 degrees Celsius, add tackifying resin, disperse and stir for 60 minutes, and make different groups Mix evenly, then cool to room temperature, add p-benzoquinone, marked as B mixed solution.

[0060] Step 3: Slowly add the mixed solution A to the mixed solution B, stir for 30 minutes, and vacuumize for 45 minutes. After the different components are mixed uniformly without air bubbles, the optical glue is prepared.

[0061] Step 4: coat...

Embodiment 2

[0063] The distribution ratio of different groups in the embodiment 2 of table 2

[0064]

[0065] Preparation method of optical adhesive film:

[0066] The first step: quantitative 1-hydroxyl-cyclohexyl-phenyl ketone, 2,4,6 (trimethylbenzoyl) diphenyl phosphine oxide and hydroxypropyl methacrylate shown in table 2, in Mix at room temperature for 30 minutes, and when all solid substances are completely dissolved, mark it as a mixed solution;

[0067] The second step: mix the quantitative acrylic-modified polyisoprene, liquid polybutadiene, and tetrahydrofuryl acrylate shown in Table 2 and heat to 90 degrees Celsius, add tackifying resin, disperse and stir for 60 minutes, and make different components Mix well, then cool to room temperature, add p-hydroxyanisole, marked as B mixed solution.

[0068] Step 3: Slowly add the mixed solution A to the mixed solution B, stir for 30 minutes, and vacuumize for 45 minutes. After the different components are mixed uniformly without a...

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Abstract

The invention provides an optical cement, which comprises an acrylic ester monomer, photoinitiator, tackifying resin and liquid rubber. The optical cement also comprises acrylic acid modified resin, wherein the acrylic acid modified resin is at least one of acrylic acid modified polybutadiene resin, methacrylic acid modified polybutadiene resin, acrylic acid modified polyisoprene resin and methacrylic acid modified polyisoprene resin. The optical cement has relatively high refraction coefficient and reliability. The invention also provides an optical cement film and a preparation method of the optical cement film.

Description

technical field [0001] The invention relates to the technical field of photocurable materials, in particular to an optical adhesive, an optical adhesive film using the optical adhesive and a preparation method thereof. Background technique [0002] Optically clear adhesive (OCA) is generally used in electronic optical components such as electronic paper, touch screens, and panels to improve the bonding performance between different interfaces. With the popularization of touch screen, the demand of OCA is increasing day by day. However, the existing OCA products have the defect of low refractive index; in addition, due to the poor high temperature and low temperature resistance, ultraviolet light resistance and high temperature and high humidity resistance of the existing OCA products, their reliability is poor. Contents of the invention [0003] The main purpose of the present invention is to provide an optical adhesive, aiming at improving the refractive index and reliab...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09J4/02C09J4/06C09J11/08C09J7/02
CPCC09J4/06C09J7/22C09J7/30C09J11/08C09J2203/326C09J2301/122
Inventor 邓志军刘海峰谢化平
Owner 深圳市力邦新材料科技有限公司
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