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Optical release film

A release film, optical technology, used in optics, optical components, film/sheet release liner, etc., can solve the problems of unstable performance, poor weather resistance, etc., to reduce transfer rate, improve coating ductility and Uniformity, the effect of improving residual adhesion

Inactive Publication Date: 2018-10-23
ZHEJIANG OUREN NEW MATERIALS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

With the continuous in-depth research in the field of optical adhesives, the requirements of optical products for optical adhesives have become more and more stringent. The release layer is formed by coating the release agent on the substrate and heating or radiation curing. The hard layer of the cross-linked structure has anti-sticking effect on the adhesive. The existing release agent has unstable performance at low temperature and poor weather resistance. How to overcome the above technical problems has become the direction of efforts of those skilled in the art.

Method used

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  • Optical release film
  • Optical release film

Examples

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Comparison scheme
Effect test

Embodiment 1

[0025] Embodiment 1: an optical release film, comprising a base film layer 1, a release agent layer 2 coated on the surface of the base film layer 1, the thickness of the release agent layer 2 is 0.1 ~ 0.7 μm, the release agent layer 2 Forming agent layer 2 is obtained by curing the release agent, and the release agent is obtained from the following components by weight:

[0026] 100 parts of pre-polymerized resin,

[0027] 0.85 parts of methyl hydroquinone,

[0028] 35 parts of 3-propylene oxide,

[0029] 15 parts of dodecyl glycidyl ether,

[0030] 3.2 parts of 1-hydroxycyclohexyl benzophenone.

[0031] Described prepolymerized resin is obtained by following steps:

[0032] Step 1, put 32 parts of cyclohexyl methacrylate, 25 parts of β-carboxyethyl acrylate, and 9 parts of acrylic acid into a mixing tank, and stir at a low speed to form a primary mixture;

[0033] Step 2, mix the primary mixture of step 1, 100 parts of xylene, and 0.35 parts of benzoyl peroxide, and the...

Embodiment 2

[0038] Embodiment 2: an optical release film, comprising a base film layer 1, a release agent layer 2 coated on the surface of the base film layer 1, the thickness of the release agent layer 2 is 0.1 ~ 0.7 μm, the release agent layer 2 Forming agent layer 2 is obtained by curing the release agent, and the release agent is obtained from the following components by weight:

[0039] 100 parts of pre-polymerized resin,

[0040] 0.9 parts of methyl hydroquinone,

[0041] 30 parts of 3-propylene oxide,

[0042] 18 parts of dodecyl glycidyl ether,

[0043] 4.5 parts of 1-hydroxycyclohexyl benzophenone.

[0044] Described prepolymerized resin is obtained by following steps:

[0045] Step 1. Put 45 parts of cyclohexyl methacrylate, 28 parts of β-carboxyethyl acrylate, and 11 parts of acrylic acid into a mixing tank, and stir at a low speed to form a primary mixture;

[0046] Step 2. Mix the primary mixture of step 1, 100 parts of xylene, and 0.45 parts of benzoyl peroxide, and the...

Embodiment 3

[0051] Embodiment 3: an optical release film, comprising a base film layer 1, a release agent layer 2 coated on the surface of the base film layer 1, the thickness of the release agent layer 2 is 0.1 ~ 0.7 μm, the release agent layer 2 Forming agent layer 2 is obtained by curing the release agent, and the release agent is obtained from the following components by weight:

[0052] 100 parts of pre-polymerized resin,

[0053] 1 part methyl hydroquinone,

[0054] 28 parts of 3-propylene oxide,

[0055] 12 parts of dodecyl glycidyl ether,

[0056] 3.5 parts of 1-hydroxycyclohexyl benzophenone.

[0057] Described prepolymerized resin is obtained by following steps:

[0058] Step 1. Put 38 parts of cyclohexyl methacrylate, 22 parts of β-carboxyethyl acrylate, and 10 parts of acrylic acid into a mixing tank, and stir at a low speed to form a primary mixture;

[0059] Step 2, mix the primary mixture of step 1, 100 parts of xylene, and 0.38 parts of benzoyl peroxide, and then add ...

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Abstract

The invention discloses an optical release film. The optical release film comprises a base film layer, a release agent layer coated at the surface of the base film layer, and the release agent layer is obtained by solidifying a release agent. The release agent comprises the following components: prepolymerized resin, methylhydroquinone, 3-epoxypropane, dodecyl glycidyl ether, and 1-hydroxy cyclohexyl phenylketone. The prepolymerized resin is obtained by the following steps: mixing cyclohexyl methacrylate, beta-carboxyethyl acrylate, and acrylic acid in a stirring barrel, and uniformly stirringthe materials at a low speed to form a primary mixture; mixing primary mixture, xylene, and benzoyl peroxide and adding a mixture in a reaction vessel to obtain a polymer solution; stirring the polymer solution and 2-hydroxyethyl vinyl ether at a high speed, and heating the materials and performing heating distillation to remove xylene to obtain the prepolymerized resin. The release film increases the product weatherability, cannot generate unfavorable influence on electric property of a circuit board, and increases the reliability of the circuit board.

Description

technical field [0001] The invention relates to an optical release film and belongs to the technical field of release materials. Background technique [0002] In the prior art, the optical release film is coated with a reactive silicone material on the surface of the film substrate, and then made into a traditional release film. With the continuous in-depth research in the field of optical adhesives, the requirements of optical products for optical adhesives have become more and more stringent. The release layer is formed by coating the release agent on the substrate and heating or radiation curing. The hard layer of the cross-linked structure is used to prevent the adhesive from sticking. The existing release agent has unstable performance at low temperature and poor weather resistance. How to overcome the above technical problems has become the direction of efforts of those skilled in the art. Contents of the invention [0003] The purpose of the present invention is to...

Claims

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Application Information

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IPC IPC(8): C09J7/40C09D4/06C09D7/63C08F220/18C08F220/28C08F220/06G02B1/10
CPCC08F220/18C08F220/1806C09D4/06C09J2203/318C09J2433/005G02B1/10C08F220/283C08F220/06
Inventor 夏厚君杨晓明
Owner ZHEJIANG OUREN NEW MATERIALS CO LTD
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