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Acrylate adhesive, protective film tape employing same and preparation method of acrylate adhesive

An acrylate and acrylate-based technology, applied in the field of protective film tape and its preparation, can solve problems such as unfavorable resource protection and environmental protection, failure to realize self-rewinding, violation of environmental protection development requirements, etc., to reduce user processes, Facilitate industrial production and save natural resources

Active Publication Date: 2015-07-22
NINGBO SOKEN CHEM
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The reason is: when making this kind of protective film tape, the hardening speed of the acrylic adhesive is slow, the initial adhesion is 80-100gf / 25mm, and the initial high-temperature adhesion is 150-400gf / 25mm, so it is necessary to use a release agent for the process. self-rewinding means that the adhesive tape is not attached to the release film or release paper, and the adhesive side is directly rolled when the tape is wound. Attached to the back of the tape
Moreover, this release film or release paper will be discarded when the protective film is used
[0006] It can be seen that these existing protective film adhesive tapes still have deficiencies: one is that a large amount of release film or release paper will be used, which will directly lead to an increase in the cost of the protective film; the other is that it is not conducive to resource protection and environmental protection. It violates the development requirements of environmental protection; the third is that the silica gel of the release agent will pollute the quilt; the fourth is that it needs to be matured at high temperature for a long time, which can neither realize self-winding from the back, but also consumes a lot of heat energy, and the production cycle is long. Need to occupy a lot of production space, low efficiency

Method used

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  • Acrylate adhesive, protective film tape employing same and preparation method of acrylate adhesive

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] Coating of acrylic pressure-sensitive adhesive on one side of the base polyester film, as follows:

[0030] 1. To prepare the adhesive mixture, take 100 parts by mass of acrylate adhesive SK-1499M (produced by Soken Chemical Co., Ltd.), 3 parts by mass of isocyanate hardener HMDI, and 0.1 part by mass of metal catalyst dilaurate For n-butyl tin, stir well after mixing, take a certain amount for coating, the coating thickness is 10μm, and dry after coating.

[0031] 2. The first section of the oven is set at 70°C for the removal of the adhesive solvent, the second section of the oven is set at 120°C, and the third section of the oven is set at 130°C. These two sections are the curing stage.

[0032] 3. The oven drying time is 5 minutes.

[0033] 4. Cool to room temperature after drying, then roll up from the back, cut and prepare a protective film tape.

Embodiment 2

[0035] Coating of acrylic pressure-sensitive adhesive on one side of the base polyester film, as follows:

[0036] 1. To prepare the adhesive mixture, take 100 parts by mass of acrylate adhesive SK-1499M (Japan Soken Chemical Co., Ltd.), 1 part by mass of isocyanate hardener HMDI, and 0.01 parts by mass of metal catalyst zirconium tetraacetylacetonate After mixing, stir well, take a certain amount for coating, the coating thickness is 7μm, and dry after coating.

[0037] 2. The first section of the oven is set at 70°C for the removal of the adhesive solvent, the second section of the oven is set at 100°C, and the third section of the oven is set at 120°C. These two sections are the curing stage.

[0038] 3. The oven drying time is 2 minutes.

[0039] 4. Cool to room temperature after drying, then roll up from the back, cut and prepare a protective film tape.

Embodiment 3

[0041] Coating of acrylic pressure-sensitive adhesive on one side of the base polyester film, as follows:

[0042] 1. To prepare the adhesive mixture, take 100 parts by mass of acrylate adhesive SK-1499M (Japan Soken Chemical Co., Ltd.), 5 parts of isocyanate hardener TDI, and 0.03 parts of metal catalyst dioctyl dineodecanoyl Oxytin, stir well after mixing, take a certain amount for coating, the coating thickness is 10 μm, and dry after coating.

[0043] 2. The first section of the oven is set at 80°C for the removal of the adhesive solvent, the second section of the oven is set at 120°C, and the third section of the oven is set at 130°C. These two sections are the curing stage.

[0044] 3. The oven drying time is 5 minutes.

[0045] 4. Cool to room temperature after drying, then roll up from the back, cut and prepare a protective film tape.

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Abstract

The invention discloses an acrylate adhesive, a protective film tape employing the acrylate adhesive, and a preparation method of the acrylate adhesive. The acrylate adhesive comprises the following components in parts by weight: 100 parts of acrylate adhesive, 1.0-5.0 parts of isocyanate hardener and 0.01-0.5 part of metal catalyst, wherein the acrylate adhesive is an acrylate polymer, which is a polymer formed by taking a monomer at least containing an acrylate group in a molecule as a main composition monomer; the weight-average molecular weight (a) of the acrylate polymer is 5,000-500,000; the protective film tape comprises a basic material and an adhesive layer coated on one surface of the basic material; and no release layers are formed on the two surfaces of the basic material. The adhesive is high in hardening speed; the tape prepared with the adhesive can be directly wound from the rear surface without being coated with a layer of release film or release paper; the rear surface of the tape does not need to be coated with a release coating, the release film or the release paper; the problem that the conventional protective film needs to use the release film or the release paper is effectively solved; and the adhesive is convenient to use, environment-friendly and simple in production process, lowers the production cost and the resource consumption of the protective film tape, and is convenient for industrial production.

Description

technical field [0001] The invention relates to the technical field of adhesive materials, in particular to an acrylate adhesive, a protective film tape applied with the adhesive and a preparation method thereof. Background technique [0002] Protective film tape is currently widely used in the production process of electronic products, especially in FPD, computer, mobile phone and other industries, and is widely used for process, engineering protection or shipment protection. [0003] At present, the performance requirements for the tape protective film, one of the important ones are: in terms of appearance, it is required that there are no sub-points and impurities on the appearance (the number of sub-points or impurities with a diameter of less than 2mm is within 10 / square, and no diameter is more than 2mm. Secondary points or impurities), and there is no lack of glue, no bubble points, and no glue marks on the glue surface. [0004] The protective film tapes currently o...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09J133/04C09J11/06C09J175/04C09J7/02
Inventor 徐苗森柳彬彬金子昌元小林晃司
Owner NINGBO SOKEN CHEM
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