A kind of solvent-resistant acrylate composition and its application

A technology of acrylate and composition, which is applied in the field of acrylate composition and its application, can solve the problems of inability to completely solve the solvent resistance performance and the intrusion of solvent at the bonding interface of the tape, and is suitable for large-scale production and popularization and application , excellent anti-aging performance, the effect of increasing tolerance

Active Publication Date: 2021-02-09
SUZHOU SHIHUA NEW MATERIAL TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This type of pressure-sensitive adhesive may have strong solvent resistance itself, but it cannot solve the solvent intrusion of the tape bonding interface, and cannot completely solve the solvent resistance.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] The acrylate polymer is prepared by the following steps: put 50g of ethyl acetate into the reaction kettle, raise the temperature to 60°C, pass nitrogen gas for 10 minutes, and drop the mixed monomer solution. The mixed monomer solution is: soft monomer butyl acrylate 50g, Soft monomer isooctyl acrylate 26.5g, hard monomer methyl methacrylate 15g, hard monomer acrylonitrile 5g, glycidyl methacrylate 3.5g, benzoyl peroxide (BPO) 0.4g, 4-6 After the hourly addition was completed, 50 g of ethyl acetate was added, and the reaction was continued for 4-5 hours before finishing, and diluted with 50 g of ethyl acetate to obtain an acrylate polymer with a solid content of 40%.

[0027] Preparation of solvent-resistant acrylate composition solution: take 25 g of the above acrylate polymer, add 0.25 g of phosphoric acid, mix evenly, and obtain through cross-linking reaction. The solution of the solvent-resistant acrylate composition is coated on a PET substrate and dried at 110° C...

Embodiment 2

[0029] The acrylate polymer is prepared by the following steps: put 50g of toluene / ethyl ester mixture (1:1 mass ratio) into the reaction kettle, raise the temperature to 70°C, blow nitrogen for 10 minutes, add the mixed monomer solution dropwise, mix the monomer solution For: 58.5g of isooctyl acrylate, 20g of methyl acrylate, 5g of methyl methacrylate, 9g of styrene, 1.5g of glycidyl methacrylate, 6g of acrylonitrile and 0.4g of azobisisobutyronitrile (AIBN), After 4-6 hours, add 50g of toluene / ethyl ester mixture (1:1 mass ratio), continue the reaction for 4-5 hours, and dilute with 50g of ethyl acetate to obtain acrylate pressure-sensitive adhesive with a solid content of 40%. glue.

[0030] Take 25g of the above pressure-sensitive adhesive, add 0.1g of phosphoric acid and mix well. Coating on a PET substrate and drying at 110°C for 3 minutes to obtain a chemically resistant pressure-sensitive adhesive tape.

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Abstract

The invention discloses a solvent-tolerant acrylate composition and application thereof. The composition contains no tackifying resin, adopts a multifunctional phosphorus hydroxyl compound as a cross-linking agent, and has good solvent resistance. . The adhesive film prepared by applying it to the acrylate pressure-sensitive adhesive can withstand the penetration of polar and non-polar solvents at its bonding interface, and can be applied to places with many chemical solvents.

Description

technical field [0001] The invention relates to an acrylate composition and its application, in particular to an acrylate composition using a multifunctional phosphorus hydroxy compound as a crosslinking agent and its application in an adhesive film. Background technique [0002] Pressure-sensitive adhesives, commonly known as self-adhesives, are commonly used in the manufacture of pressure-sensitive tapes, pressure-sensitive labels, etc. Usually only finger pressure is needed to achieve a fast adhesive effect, and the surface to be bonded will not be stained or damaged. This pressure-sensitive adhesive is called a pressure-sensitive adhesive. [0003] According to the category, it is usually divided into rubber pressure sensitive adhesive, acrylic pressure sensitive adhesive, silicone pressure sensitive adhesive, polyurethane pressure sensitive adhesive and so on. Among them, acrylate pressure-sensitive adhesives are widely used in manufacturing because of their viscoelast...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08F220/18C08F220/14C08F220/44C08F220/32C08F212/08C09J133/08C09J7/38
CPCC09J133/20C09J7/385C09J2467/006C09J2433/00C08F220/1804C08F220/1808C08J3/24C08J2333/20C08F220/14C08F220/44C08F220/325C08F212/08
Inventor 顾正青秦健周奎任陈启峰
Owner SUZHOU SHIHUA NEW MATERIAL TECH
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