Acrylic acid pressure-sensitive adhesive tape capable of replacing die-cutting support bottom film and preparation method of acrylic acid pressure-sensitive adhesive tape

An acrylic pressure-sensitive adhesive tape, acrylic technology, applied in the direction of pressure-sensitive film/sheet, film/sheet-shaped adhesive, adhesive, etc., can solve the problems of high cost, residual adhesive sticking to the back, low efficiency, etc. Achieve the effects of improving efficiency, reducing the time and cost of a process, and reducing costs

Pending Publication Date: 2021-05-07
SHENZHEN LICHANGSHI ADHESIVE PROD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Aiming at the deficiencies of the prior art, the present invention provides an acrylic pressure-sensitive adhesive tape that can replace the die-cut backing film and its preparation method. Most of the backing films used in the die-cutting industry use this method. This method cannot be torn off normally later, and it is easy to have residual glue adhered to the back, and the entire operation process is inefficient and costly.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] Embodiment 1: An acrylic pressure-sensitive adhesive tape that can replace a die-cut backing film, including the following raw materials in parts by weight: 60 parts of butyl acrylate, 20 parts of methyl methacrylate, 10 parts of acrylic acid, monomer 0.5 parts of ethyl acetate solution of BPO with mass 0.25%, 100 parts of glue solution, 1 part of polyisocyanate dissolved in toluene plus ethyl acetate and 0.5 parts of toluene solution of epoxy resin.

[0020] Another technical problem to be solved by the present invention is to provide a method for preparing an acrylic pressure-sensitive adhesive tape that can replace a die-cut backing film, comprising the following steps:

[0021] 1) Add 60 parts of butyl acrylate, 20 parts of methyl methacrylate and 10 parts of acrylic acid into a 250mL four-neck flask, pass nitrogen gas for 10 minutes, completely replace the air in the flask, start the stirring paddle, and heat in a water bath to At 80°C, add 0.5 parts of BPO ethyl a...

Embodiment 2

[0025] Embodiment 2: An acrylic pressure-sensitive adhesive tape that can replace the die-cut backing film, including the following raw materials in parts by weight: 70 parts of butyl acrylate, 25 parts of methyl methacrylate, 15 parts of acrylic acid, monomer 2.5 parts of ethyl acetate solution of mass 0.25% BPO, 110 parts of glue solution, 2.5 parts of polyisocyanate dissolved in toluene plus ethyl acetate and 2.5 parts of toluene solution of epoxy resin.

[0026] Another technical problem to be solved by the present invention is to provide a method for preparing an acrylic pressure-sensitive adhesive tape that can replace a die-cut backing film, comprising the following steps:

[0027] 1) Add 70 parts of butyl acrylate, 25 parts of methyl methacrylate and 15 parts of acrylic acid into a 250mL four-necked flask, pass nitrogen gas for 16 minutes, completely replace the air in the flask, start the stirring paddle, and heat in a water bath to At 90°C, add 2.5 parts of ethyl ace...

Embodiment 3

[0031] Embodiment 3: An acrylic pressure-sensitive adhesive tape that can replace the die-cut backing film, including the following raw materials in parts by weight: 65 parts of butyl acrylate, 23 parts of methyl methacrylate, 13 parts of acrylic acid, monomer 1.5 parts of ethyl acetate solution of mass 0.25% BPO, 105 parts of glue solution, 1.5 parts of polyisocyanate dissolved in toluene plus ethyl acetate and 1.5 parts of toluene solution of epoxy resin.

[0032] Another technical problem to be solved by the present invention is to provide a method for preparing an acrylic pressure-sensitive adhesive tape that can replace a die-cut backing film, comprising the following steps:

[0033] 1) Add 65 parts of butyl acrylate, 23 parts of methyl methacrylate and 13 parts of acrylic acid into a 250mL four-neck flask, pass nitrogen gas for 13 minutes, completely replace the air in the flask, start the stirring paddle, and heat in a water bath to At 85°C, add 1.5 parts of BPO ethyl a...

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PUM

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Abstract

The invention relates to the technical field of support bottom film adhesive tapes during die cutting, and discloses an acrylic acid pressure-sensitive adhesive tape capable of replacing a die-cutting support bottom film. The acrylic acid pressure-sensitive adhesive tape comprises the following raw materials in parts by weight: 60-70 parts of butyl acrylate, 20-25 parts of methyl methacrylate, 10-15 parts of acrylic acid, 0.5-2.5 parts of an ethyl acetate solution of BPO with a monomer mass of 0.25%, 100-110 parts of a glue solution, 1-2.5 parts of polyisocyanate dissolved in toluene and ethyl acetate, and 0.5-2.5 parts of a toluene solution of epoxy resin. According to the acrylic pressure-sensitive adhesive tape capable of replacing the die-cutting support bottom film and the preparation method of the acrylic pressure-sensitive adhesive tape, the acrylic pressure-sensitive adhesive is partially polymerized before being prepared, and after the acrylic pressure-sensitive adhesive is dried by a drying oven and continuously reacts, the glue immediately has enough cohesive force and can be directly coiled into the adhesive tape;by mixing glue and various curing agents, the glue is cross-linked after being dried in the drying oven, the cohesive force reaches a normal level, and the glue cannot be remained on the back surface after being torn after being coiled into the adhesive tape.

Description

technical field [0001] The invention relates to the technical field of backing film tape during die-cutting, in particular to an acrylic pressure-sensitive adhesive tape that can replace a die-cutting backing film and a preparation method thereof. Background technique [0002] At present, many roll-packed die-cut products use PET tape as a backing film. Generally, the surface of PET is first treated with silicone-free release, and then coated with acrylic pressure-sensitive film to form a tape. Existing die-cutting industry uses Most of the backing film adopts this method, which cannot be torn off normally in the follow-up, and it is easy to have residual glue adhered to the back, and the efficiency of the entire operation process is low, and the cost is also high, so an alternative An acrylic pressure-sensitive adhesive tape for die-cutting a backing film and a preparation method thereof to solve the above-mentioned problems. Contents of the invention [0003] (1) Solved...

Claims

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Application Information

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IPC IPC(8): C09J133/08C09J7/38C09J7/25C09J11/06C09J11/08C08F220/18C08F220/14C08F220/06
CPCC09J133/064C09J7/385C09J7/255C09J11/06C09J11/08C08F220/1804
Inventor李大威周荣杰唐贤坤
OwnerSHENZHEN LICHANGSHI ADHESIVE PROD