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Optical transparent double-sided tape

A double-sided tape, optically transparent technology, applied in the direction of adhesives, coatings, film/sheet release liners, etc., can solve the problems of unstable performance, poor weather resistance, etc., to reduce transfer rate and improve coating ductility and uniformity, and 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 transparent double-sided tape
  • Optical transparent double-sided tape
  • Optical transparent double-sided tape

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0036] Example 1: An optically transparent double-sided adhesive tape, comprising a lightly peelable release film 1, a first optical adhesive layer 2, a transparent substrate layer 3, a second optical adhesive layer 4, and a heavy peelable release film 5;

[0037] The lightly peelable release film 1 consists of a first base film layer 11, a lightly peelable release agent layer 12 coated on the surface of the first base film layer 11, and the lightly peelable release agent layer 12 is composed of a lightly peelable release agent. After curing, the light-peeling release agent is obtained from the following parts by weight:

[0038] 100 parts of the first prepolymer resin,

[0039] 0.6 parts of methyl hydroquinone,

[0040] 12 parts of 2-hydroxymethyloxetane,

[0041] 25 parts of lauryl glycidyl ether,

[0042] 3.2 parts of 1-hydroxycyclohexyl benzophenone.

[0043] The first prepolymerized resin is obtained by the following steps:

[0044] Step 1. Put 45 parts of cyclohexyl methacrylate, 20...

Embodiment 2

[0059] Embodiment 2: An optically transparent double-sided adhesive tape, comprising a lightly peelable release film 1, a first optical adhesive layer 2, a transparent substrate layer 3, a second optical adhesive layer 4, and a heavy peelable release film 5;

[0060] The lightly peelable release film 1 consists of a first base film layer 11, a lightly peelable release agent layer 12 coated on the surface of the first base film layer 11, and the lightly peelable release agent layer 12 is composed of a lightly peelable release agent. After curing, the light-peeling release agent is obtained from the following parts by weight:

[0061] 100 parts of the first prepolymer resin,

[0062] 0.9 parts of methyl hydroquinone,

[0063] 15 parts of 2-hydroxymethyloxetane,

[0064] 22 parts of lauryl glycidyl ether,

[0065] 4 parts of 1-hydroxycyclohexyl benzophenone.

[0066] The prepolymerized resin is obtained by the following steps:

[0067] Step 1. Put 48 parts of cyclohexyl methacrylate, 25 part...

Embodiment 3

[0082] Embodiment 3: An optically transparent double-sided adhesive tape, comprising a lightly peelable release film 1, a first optical adhesive layer 2, a transparent substrate layer 3, a second optical adhesive layer 4, and a heavy peelable release film 5;

[0083] The lightly peelable release film 1 consists of a first base film layer 11, a lightly peelable release agent layer 12 coated on the surface of the first base film layer 11, and the lightly peelable release agent layer 12 is composed of a lightly peelable release agent. After curing, the light-peeling release agent is obtained from the following parts by weight:

[0084] 100 parts of the first prepolymer resin,

[0085] 0.6 parts of methyl hydroquinone,

[0086] 18 parts of 2-hydroxymethyloxetane,

[0087] 28 parts of lauryl glycidyl ether,

[0088] 4.2 parts of 1-hydroxycyclohexyl benzophenone.

[0089] The first prepolymerized resin is obtained by the following steps:

[0090] Step 1. Put 42 parts of cyclohexyl methacrylate,...

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Abstract

The invention discloses an optical transparent double-sided tape. The optical transparent double-sided tape comprises a light-peeling release film, a first optical adhesive layer, a transparent substrate layer, a second optical adhesive layer, and a heavy-peeling release film, the light-peeling release film comprises a first basic film layer and a light-peeling release agent layer used for coatingthe surface of the first basic film layer, the light-peeling release agent layer is obtained by solidifying with a light-peeling release agent, the heavy-peeling release film comprises a second basicfilm layer and a heavy-peeling release agent layer used for coating the surface of the second basic film layer, and the heavy-peeling release agent layer is obtained by solidifying with a heavy-peeling release agent. The optical transparent double-sided tape overcomes the defects that the current release agents can keep stable low peel strength under normal temperature and high temperature, realizes low peel strength under low temperature, and increases the product weatherability.

Description

Technical field [0001] The invention relates to an optically transparent double-sided adhesive tape, which belongs to the technical field of release materials. Background technique [0002] In the prior art, the optical release film is coated with reactive organosilicon materials 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 on optical adhesives have become more and more stringent. The release layer is formed by processing and coating a release agent on the substrate and curing by heating or radiation. The hard layer of the cross-linked structure has an anti-sticking effect on the adhesive. The existing release agents have unstable performance at low temperatures and poor weather resistance. How to overcome the above technical problems has become the direction of the efforts of those skilled in the art. Summary of the invention [000...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09J7/40C09D133/10C09D7/63C08F220/18C08F220/28C08F220/34C08F220/06
CPCC09D133/10C08F220/18C08K5/04C08K5/08C08K5/132C08K5/1525C08K5/1515C09J2203/318C09J2433/005C09J2301/124C09J2301/30C08F220/283C08F220/343C08F220/06
Inventor 夏厚君杨晓明
Owner ZHEJIANG OUREN NEW MATERIALS CO LTD
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