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Fluoroacrylate pressure sensitive adhesive, and preparation method thereof

An acrylate and pressure-sensitive adhesive technology, applied in the preparation of carboxylic acid amides, chemical instruments and methods, preparation of organic compounds, etc., can solve the problems of non-silicon transfer and proposed effective methods, so as to reduce the transfer of silicon, The carbon-fluorine bond can be large, and the effect of improving cohesion and bonding strength

Active Publication Date: 2014-07-02
滁州云林数码影像耗材有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in the prior art, no effective method has been proposed for the transfer of silicon during the separation process of the adhesive and the release paper.

Method used

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  • Fluoroacrylate pressure sensitive adhesive, and preparation method thereof
  • Fluoroacrylate pressure sensitive adhesive, and preparation method thereof
  • Fluoroacrylate pressure sensitive adhesive, and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0052] The preparation steps of fluorine-containing hard monomer are as follows:

[0053] Dissolve 3,5-bis(trifluoromethyl)benzoic acid in N,N-dimethylformamide, place in a reaction vessel and cool with ice water, add 1-hydroxybenzotriazole and K 2 CO 3 , and then add an equimolar amount of reaction monomer with 3,5-bis(trifluoromethyl)benzoic acid, stir at room temperature for 2~3 hours, add saturated NaHCO 3 Solution reaction, followed by extraction and recrystallization to obtain fluorine-containing hard monomers;

[0054] Among them, 1-hydroxybenzotriazole and K 2 CO 3 The molar mass ratio of 1-hydroxybenzotriazole to 3,5-bis(trifluoromethyl)benzoic acid is 1.5:1;

[0055] The molecular structural formula of the 3,5-bis(trifluoromethyl)benzoic acid is:

[0056]

[0057] The structural characteristics of the described reaction monomer are:

[0058]

[0059] Among them, X is an alkane group containing a hydroxyl group.

[0060] A preparation method of fluorine-c...

Embodiment 2

[0063] The preparation steps of fluorine-containing hard monomer are as follows:

[0064] Dissolve 3,5-bis(trifluoromethyl)benzoic acid in N,N-dimethylformamide, place in a reaction vessel and cool with ice water, add 1-hydroxybenzotriazole and K 2 CO 3 , and then add an equimolar amount of reaction monomer with 3,5-bis(trifluoromethyl)benzoic acid, stir at room temperature for 2~3 hours, add saturated NaHCO 3 Solution reaction, followed by extraction and recrystallization to obtain fluorine-containing hard monomers;

[0065] Among them, 1-hydroxybenzotriazole and K 2 CO 3 The molar mass ratio of 1-hydroxybenzotriazole to 3,5-bis(trifluoromethyl)benzoic acid is 2:1;

[0066] The molecular structural formula of the 3,5-bis(trifluoromethyl)benzoic acid is:

[0067]

[0068] The structural characteristics of the described reaction monomer are:

[0069]

[0070] Among them, X is an alkane group containing a hydroxyl group.

[0071] A preparation method of fluorine-con...

Embodiment 3

[0074] The preparation steps of fluorine-containing hard monomer are as follows:

[0075] Dissolve 3,5-bis(trifluoromethyl)benzoic acid in N,N-dimethylformamide, place in a reaction vessel and cool with ice water, add 1-hydroxybenzotriazole and K 2 CO 3 , and then add an equimolar amount of reaction monomer with 3,5-bis(trifluoromethyl)benzoic acid, stir at room temperature for 2~3 hours, add saturated NaHCO 3 Solution reaction, followed by extraction and recrystallization to obtain fluorine-containing hard monomers;

[0076] Among them, 1-hydroxybenzotriazole and K 2 CO 3 The molar mass ratio of 1-hydroxybenzotriazole to 3,5-bis(trifluoromethyl)benzoic acid is 1.75:1;

[0077] The molecular structural formula of the 3,5-bis(trifluoromethyl)benzoic acid is:

[0078]

[0079] The structural characteristics of the described reaction monomer are:

[0080]

[0081] Among them, X is an alkane group containing a hydroxyl group.

[0082] A preparation method of fluorine-...

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Abstract

The invention provides a fluoroacrylate pressure sensitive adhesive and a preparation method of the adhesive. The fluoroacrylate pressure sensitive adhesive is characterized by containing at least 2.5% of fluoric hard monomer in percentage by weight. The number-average molecular weight of the prepared fluoroacrylate pressure sensitive adhesive is 9000-300000; and the pressure sensitive adhesive has low surface property, so the silicon transfer in the separation process of adhesive and the release paper is reduced and the adhering strength between the adhesive and the adhered object is enhanced. The invention further provides a coating and drying technique of the fluoroacrylate pressure sensitive adhesive. The coating and drying technique comprises two steps of coating and drying, and is characterized by evenly coating the fluoroacrylate pressure sensitive adhesive on a substrate, performing thermal insulation treatment before drying, and then drying to remove solvent. The fluoroacrylate pressure sensitive adhesive has the following characteristics of simple production technique, easy operation, solvent resistance, good cohesion, and high adhering strength.

Description

technical field [0001] The invention relates to a fluorine-containing acrylate pressure-sensitive adhesive and a preparation method thereof, in particular to a fluorine-containing hard monomer to prepare a fluorine-containing acrylate pressure-sensitive adhesive to obtain a fluorine-containing acrylate pressure-sensitive adhesive with low surface properties It is a method to reduce the transfer of silicon during the separation process of the adhesive and the release paper, and improve the bonding strength between the adhesive and the adherend. Background technique [0002] Pressure-sensitive adhesive is an adhesive that is sensitive to pressure, does not require heating, and does not require high pressure. It can be bonded only by finger touch pressure. Its characteristics are that it is easy to stick, not difficult to remove, and it is not damaged when peeled off. The adhesive layer will not dry up in a long period of time, so the pressure-sensitive adhesive is also called ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09J133/08C08F220/18C08F220/58C08F218/08C08F220/44C08F220/56C08F212/08C08F220/14C08F220/06C08F222/02C08F222/28C08F220/34C08F220/32C08F222/06C08F4/04C07C233/71C07C231/02B05D7/24B05D3/00
Inventor 葛允林张曙明王炎杨其文陈伟
Owner 滁州云林数码影像耗材有限公司
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