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A kind of acrylic adhesive emulsion for OCA optical film and preparation method thereof

A technology of acrylic glue and optical glue, which is applied in the direction of acidic copolymer adhesive, adhesive type, ester copolymer adhesive, etc. It can solve the problem of affecting the use feel and appearance, the thickness of tempered glass film is large, and it is difficult to satisfy users. and other problems, to achieve the effect of thin OCA optical film thickness, low production cost and good curing effect

Active Publication Date: 2017-07-28
JIANGSU ZHONGHAI HUA HE ENVIRONMENTAL PROTECTION CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] However, at present, the thickness of tempered glass film is generally large, and it affects the use feel and appearance after being attached to the surface of mobile phones, tablet computers or other electronic products, resulting in poor experience and difficult to meet the needs of users.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0048] A kind of acrylic adhesive emulsion for OCA optical adhesive film, described acrylic adhesive emulsion comprises the raw material of following weight portion:

[0049] 4 parts butyl acrylate

[0050] 4 parts methyl methacrylate

[0051] Acrylic 2 parts

[0052] 2 parts hydroxypropyl acrylate

[0053] 3 parts of cross-linking curing agent.

[0054] The butyl acrylate is butyl acrylate with a relative density of 0.89 and a glass transition temperature of -53°C.

[0055] The methyl methacrylate is methyl methacrylate with a relative density of 0.93 and a glass transition temperature of 103°C.

[0056] The acrylic acid is acrylic acid with a relative density of 1.03 and a glass transition temperature of 104°C.

[0057] The hydroxypropyl acrylate is hydroxypropyl acrylate with a relative density of 1.05 and a glass transition temperature of 24°C.

[0058] The cross-linking curing agent is glycidyl methacrylate with a relative density of 1.02 and a refractive index of 1...

Embodiment 2

[0063] The difference between this embodiment and the above-mentioned embodiment 1 is:

[0064] Described acrylic adhesive emulsion comprises the raw material of following weight portion:

[0065] Butyl acrylate 5 parts

[0066] 5 parts methyl methacrylate

[0067] Acrylic 4 parts

[0068] 4 parts hydroxypropyl acrylate

[0069] 5 parts of cross-linking curing agent.

[0070] The butyl acrylate is butyl acrylate with a relative density of 0.90 and a glass transition temperature of -54°C.

[0071] The methyl methacrylate is methyl methacrylate with a relative density of 0.94 and a glass transition temperature of 104°C.

[0072] The acrylic acid is acrylic acid with a relative density of 1.04 and a glass transition temperature of 105°C.

[0073] The hydroxypropyl acrylate is hydroxypropyl acrylate with a relative density of 1.06 and a glass transition temperature of 25°C.

[0074] The cross-linking curing agent is glycidyl methacrylate with a relative density of 1.03 and ...

Embodiment 3

[0079] The difference between this embodiment and the above-mentioned embodiment 1 is:

[0080] Described acrylic adhesive emulsion comprises the raw material of following weight portion:

[0081] Butyl acrylate 5 parts

[0082] 5 parts methyl methacrylate

[0083] Acrylic 6 parts

[0084] 6 parts of hydroxypropyl acrylate

[0085] 6 parts of cross-linking curing agent.

[0086] The butyl acrylate is butyl acrylate with a relative density of 0.90 and a glass transition temperature of -55°C.

[0087] The methyl methacrylate is methyl methacrylate with a relative density of 0.94 and a glass transition temperature of 105°C.

[0088] The acrylic acid is acrylic acid with a relative density of 1.05 and a glass transition temperature of 106°C.

[0089] The hydroxypropyl acrylate is hydroxypropyl acrylate with a relative density of 1.06 and a glass transition temperature of 26°C.

[0090] The cross-linking curing agent is glycidyl methacrylate with a relative density of 1.04 a...

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Abstract

The invention relates to the field of OCA optically clear adhesive film technology, and more specifically relates to an acrylic acid adhesive emulsion for an OCA optically clear adhesive film and a preparation method thereof. The acrylic acid adhesive emulsion comprises the following raw materials in parts by weight: 4-6 parts of butyl acrylate, 4-6 parts of methyl methacrylate, 2-10 parts of acrylic acid, 2-10 parts of hydroxypropyl acrylate and 3-8 parts of a cross-linking curing agent. The raw materials are used for preparing the acrylic acid adhesive emulsion, weight ratio of each raw material is strictly controlled, and the prepared acrylic acid adhesive emulsion has good solidification effect and excellent comprehensive properties. The OCA optically clear adhesive film prepared by the acrylic acid adhesive emulsion is thin and has high light transmittance.

Description

technical field [0001] The invention relates to the technical field of OCA optical adhesive films, in particular to an acrylic adhesive emulsion used for OCA optical adhesive films and a preparation method thereof. Background technique [0002] The tempered glass protective film currently available on the market has a high surface hardness, excellent scratch resistance, easy and tight fit, high toughness, and strong shock and drop resistance. [0003] However, at present, the thickness of tempered glass film is generally large, and the touch and appearance are affected after being attached to the surface of mobile phones, tablet computers or other electronic products, resulting in poor experience and difficult to meet the needs of users. Contents of the invention [0004] In order to overcome the shortcomings and deficiencies in the prior art, the object of the invention is to provide a kind of acrylic adhesive emulsion for OCA optical adhesive film, adopt the OCA optical ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09J133/12C09J133/02C08F220/14C08F220/18C08F220/06C08F220/28C08F220/32
CPCC08F220/06C08F220/14C09J133/02C09J133/12C08F220/1804C08F220/281C08F220/325
Inventor 朱文峰
Owner JIANGSU ZHONGHAI HUA HE ENVIRONMENTAL PROTECTION CO LTD