Efficient anti-sticking UV release paint applied to pressure-sensitive adhesive as well as preparation and application of efficient anti-sticking UV release paint

A technology of pressure-sensitive adhesives and coatings, applied in polyester coatings, epoxy resin coatings, polyurea/polyurethane coatings, etc., can solve the problems of slow curing and achieve low adhesion strength, low critical surface tension, and high sensitization effects Effect

Active Publication Date: 2016-02-10
SHANGHAI CHENGYING NEW MATERIALS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The process is as follows: the free radical photoinitiator first absorbs UV light energy to be excited, and then transfers electrons to the iodonium salt, and then generates super acid to initiate cationic photopolymerization and free radical to initiate free radical photopolymerization. The inhibition of free radicals and the sensitivity of cationic polymerization to water improve the curing degree and physical and chemical properties of the coating film, and solve the problems of oxygen inhibition and slow curing caused by the single initiator. At the same time, the photocuring speed is fast and the dissolution Good performance, absorption wavelength up to 390nm, is a high-efficiency, energy-saving, environmentally friendly light-curing release coating

Method used

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  • Efficient anti-sticking UV release paint applied to pressure-sensitive adhesive as well as preparation and application of efficient anti-sticking UV release paint
  • Efficient anti-sticking UV release paint applied to pressure-sensitive adhesive as well as preparation and application of efficient anti-sticking UV release paint
  • Efficient anti-sticking UV release paint applied to pressure-sensitive adhesive as well as preparation and application of efficient anti-sticking UV release paint

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Experimental program
Comparison scheme
Effect test

Embodiment 1～6

[0031] Embodiments 1 to 6 provide a high-efficiency anti-sticking UV release coating applied to pressure-sensitive adhesives and its preparation and application. The components and contents of the coating are as shown in Table 1:

[0032] Table 1 Embodiment 1~6 components and mass percent

[0033]

[0034] Described preparation and application comprise the following steps:

[0035] Step 1, adding the non-silicon type acrylic resin and silicone acrylic resin into the active diluent, mixing evenly and fully dissolving;

[0036] Step 2, adding a photoinitiator and a co-initiator to the mixed solution obtained in step 2, stirring and mixing at 1000 to 2000 rpm;

[0037] Step 3: Cool the mixture obtained in Step 2, and filter at 250 mesh at normal temperature and pressure to obtain the high-efficiency anti-sticking UV release coating.

[0038] Preferably, in step 1, the adding is sequentially adding; the uniform mixing is achieved by stirring.

[0039] Preferably, in step 3, ...

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Abstract

The invention provides an efficient anti-sticking UV release paint applied to a pressure-sensitive adhesive as well as preparation and application of the efficient anti-sticking UV release paint. The paint comprises the following ingredients in percentage by weight: 3-8% of a photoinitiator, 3-5% of an auxiliary initiator, 20-40% of an active diluent, 15-45% of organic silicon-acrylic resin and 25-45% of non-silicon acrylic resin. The system of free radicals and the cationic composite initiator is adopted, a sensitization effect realized through the synergistic effect of the free radicals and the cationic composite initiator better solves the problems of oxygen inhibition and slow curing caused by the single initiator, meanwhile, the photo-curing speed is high, the solubility is good, the absorption wavelength reaches 390 nm and the paint is an efficient, energy-saving and environment-friendly photo-cured release paint.

Description

technical field [0001] The invention relates to a high-efficiency anti-adhesive UV release coating applied to pressure-sensitive adhesives and its preparation and application. Background technique [0002] Pressure-sensitive adhesive is the abbreviation of pressure-sensitive adhesive. It is a type of adhesive that can be firmly bonded to the adherend without solvents, heat or other means, just by applying light finger pressure. Release coatings, also known as release agents and anti-sticking agents, are widely used in rolls of transparent adhesives, label pressure-sensitive adhesives, paper diapers, etc. Film, dry film photoresist (for engraving electronic circuit boards) and other fields, the main function is to protect the rubber surface of pressure-sensitive adhesive products. When the pressure-sensitive adhesive is used, the release protective film can be easily peeled off. It can be said that the coating area of ​​the pressure-sensitive adhesive is as large as the coa...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D175/14C09D167/06C09D163/10C09D7/12C08J7/04
Inventor 董海普胡益共丁志红
Owner SHANGHAI CHENGYING NEW MATERIALS
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