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Matt release film

A release film, matte technology, applied in the direction of coating, can solve problems such as unfavorable use in the electronics industry, and achieve the effect of saving coating time and production cycle, improving wear resistance and high residual adhesion rate

Active Publication Date: 2016-02-24
BAODING LUCKY INNOVATIVE MATERIALS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Its surface is bright and flat, and it contains silicone material, which is not conducive to use in the electronics industry

Method used

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Experimental program
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Effect test

preparation example Construction

[0070] The present invention provides the preparation method of the thermosetting coating of above-mentioned release film, it comprises the following steps:

[0071] Mix part of organic mixed solvent 1 with organic fluorine resin, stir at room temperature, add melamine resin, aldehyde and ketone resin, acrylic resin, etc. in turn while stirring, stir evenly, and slowly add matting agent and dispersant at the same time, you can get Resin mixture paste. The focus of preparing the main ingredient is to control the speed of mixing and resin addition to avoid foaming or gelling. The obtained resin mixture slurry is uniform and thick without gelling, foaming or agglomeration.

[0072] Put the above resin mixture slurry into the sand mill for sand grinding several times, control the sand grinding speed at 2-4L / min, add antistatic agent during the grinding process, control the overall temperature of the sand mill below 40°C, select the corresponding The filter core is filtered to obt...

Embodiment 1

[0079] Fluorine resin HLR-13.0kg

[0080] Acrylic resin 170B3.0kg

[0081] Aldehyde and ketone resin KR-1201.0kg

[0082] Curing agent amino resin A032.0kg

[0083] Curing agent blocked isocyanate 1358A1.0kg

[0084] Auxiliary p-toluenesulfonic acid PTSA0.2kg

[0085]Auxiliary antistatic agent SN0.3kg

[0086] Auxiliary dispersant DISPERBYK-1100.3kg

[0087] Mixed solvent 1 toluene: butanone: cyclohexanone = 4:6:11.0kg

[0088] Mixed solvent 2 isopropanol: methyl ethyl ketone = 4: 11kg

[0089] Matting agent silica (particle size 1-3μm) 1.5kg

[0090] Matting agent titanium dioxide (particle size 1.0-3.0μm) 1.5kg;

[0091] in:

[0092] Fluorine resin HLR-1 has a hydroxyl value of 50, an acid value of 1-5, and a number average molecular weight of 6000-25000

[0093] The hydroxyl value of acrylic resin 170B is 120mgKOH / g, and the acid value can be 15mgKOH / g

[0094] The coating solution was coated on a 125 micron thick PET substrate. The above release layer slurry is...

Embodiment 2

[0097] Fluorine resin HLR-14.0kg

[0098] Acrylic resin 170E3.0kg

[0099] Aldehyde and ketone resin A812.0kg

[0100] Curing agent amino resin A032.0kg

[0101] Curing agent isocyanate 1358A0.5kg

[0102] Auxiliary PTSA0.2kg

[0103] Auxiliary antistatic agent SN0.2kg

[0104] Auxiliary dispersant DISPERBYK-1100.2kg

[0105] Mixed solvent 1 toluene: butanone: cyclohexanone = 4:6:111.0kg

[0106] Mixed solvent 2 isopropanol: methyl ethyl ketone = 4: 11.0kg

[0107] Silica (particle size 2-4μm) 1.0kg

[0108] Titanium dioxide (particle size 1.0-3.0μm) 1.5kg;

[0109] in:

[0110] Fluorine resin HLR-1 has a hydroxyl value of 50, an acid value of 1-5, and a number average molecular weight of 6000-25000

[0111] The hydroxyl value of acrylic resin 170E is 86mgKOH / g, and the acid value can be 9-15mgKOH / g

[0112] On the PET substrate with a thickness of 50 μm, the above-mentioned release layer slurry is coated by three rolls, and fully dried and solidified to obtain a re...

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Abstract

The invention relates to a matt release film. The matt release film comprises a base film and a matt release coating layer arranged at one side of the base film; and the matt release coating layer is formed by coating a fluorine-containing thermosetting coating, and the coating comprises fluorine series resin, acrylic resin, aldehyde ketone resin, a curing agent system, an assistant, a delustering agent and a mixed solvent. The matt release film has the advantages of low surface tension, good adhesiveness and overcoatability, excellent heat and solvent resistance, and high residual adhesion rate and excellent matt effect after peeling when the matt release film is used in the field of electron manufacturing.

Description

technical field [0001] The invention relates to a release film, in particular to a matte release film suitable for the field of electronic manufacturing. Background technique [0002] Release film, also known as peeling film, isolation film, etc., refers to a film with a separable surface. The release film is not sticky or slightly sticky after contacting a specific material under limited conditions. At present, the products on the release film market are generally based on PET tape base, and the surface is coated with a release agent layer as the main body, which protects the subsequent coating, and can be torn off when used. [0003] However, 95% of the current coating materials in the market are made of silicone coatings. With the wide application in the market, silicones are still not suitable for some fields. For example, materials containing silicones are generally not suitable for the electronic circuit manufacturing industry. , because the residual silicone bonded d...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D127/12C09D133/00C09D161/02C09D7/12C08J7/04
CPCC08J7/0427C08J2367/02C08J2427/12C08J2433/00C08J2461/02C08L2205/035C09D7/61C09D7/63C09D7/65C09D127/12C09D133/00C08L33/00C08L61/02C08L61/32C08K13/02C08K3/36C08K2003/2241C08K5/29C08L27/12
Inventor 闫庆刘彦峰
Owner BAODING LUCKY INNOVATIVE MATERIALS
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