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UV adhesive and its application

A viscose and multi-functionality technology, applied in the direction of adhesives, polyurea/polyurethane adhesives, adhesive types, etc., can solve the problems of inability to adjust the initial adhesion, inconvenient, and not environmentally friendly

Active Publication Date: 2021-04-09
上海仁速新材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The document CN104496853A discloses the use of thermal reaction synthesis method, which requires special resin synthesis equipment, and the reaction time is long. After the reaction process is fixed, the initial adhesion and the adhesion after UV viscosity reduction cannot be adjusted according to the adhesive force required by different substrates. The size of the adhesive force
At the same time, in the existing technology of UV viscosity reduction, there are solvent components, and the solvent needs to be removed before curing, which is not convenient, but also produces a large amount of VOC, which is not environmentally friendly.
The existence of solvents also affects the application range of viscosifying adhesives. In many closed application scenarios, this type of viscous reducing adhesives cannot be used because there is not enough environment for the solvent to escape.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0044]Synthesis of cured resin: React 1.2mol hydroxyethyl methacrylate, 0.7mol IPDI and 0.3mol polyethylene adipate (molecular weight: 5000) at 60-80°C for 1-3 hours to obtain cured resin A 1 .

[0045] A component: curing resin A 1 10 g, 40 g of trimethylolpropane triacrylate, 20 g of aliphatic urethane acrylate oligomer-Sartomer CN8011 (functionality 6), 6 g of α-hydroxy ketone.

[0046] Component B: 50 g Bayer HDI aliphatic isocyanate 7790 (NCO content 17%).

[0047] Production method: Put the cured resin and active monomer raw materials into the mixing tank in turn and stir for half an hour, filter to obtain component A, and then put them into different containers with component B to obtain the final product.

Embodiment 2

[0049] Synthesis of cured resin: React 0.3mol hydroxyethyl acrylate, 0.5mol IPDI and 0.8mol polyethylene glycol (molecular weight 200) at 60-80°C for 1-3 hours to obtain cured resin A 2 .

[0050] A component: curing resin A 2 40 g, 20 g of pentaerythritol tetraacrylate, 30 g of aliphatic urethane acrylate oligomer-Sartomer CN8011 (functionality: 6), 5 g of α-hydroxyketone, and 5 g of acylphosphine oxide.

[0051] Component B: 99 grams of BASF HB175 (NCO content 16.5%), 0.5 grams of defoamer Tego Airex910, 0.5 grams of leveling agent BYK333.

[0052] Production method: Curing resin A 2 Put it into the mixing tank with active monomer raw materials and stir for half an hour, filter to obtain component A, and then put it into different containers with component B to obtain the final product.

Embodiment 3

[0054] Synthesis of cured resin: react 1.2mol hydroxyethyl acrylate, 1.0mol IPDI and 1.0mol pentanediol at 60-80°C for 1-3 hours to obtain cured resin A 3 .

[0055] A component: curing resin A 3 20g, dipentaerythritol hexaacrylate 30g, aliphatic urethane acrylate oligomer-Sartomer CN8011 (functionality 6) 10g, 2,4,6-(trimethylbenzoyl) diphenylphosphine oxide 1g .

[0056] Component B: 60 g of Bayer HDI aliphatic isocyanate 7790 (NCO content 17%).

[0057] Production method: Curing resin A 3 Put them into the mixing tank with the active monomer raw materials in sequence for half an hour at medium speed, filter to obtain component A, and then put them into different containers with component B to obtain the final product.

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Abstract

The invention relates to a UV viscous reducing adhesive and its application. The UV visbreaking adhesive, in parts by weight, includes 50-100 parts of A component and 50-100 parts of B component; the A component, in parts by weight, includes 10-40 parts of curing Resin, 20-40 parts of multifunctional reactive monomers, 10-30 parts of multifunctional oligomers, and 1-10 parts of photoinitiators; the B component is selected from isocyanate-containing curing agent and mercapto-containing curing agent at least one of the group consisting of.

Description

technical field [0001] The invention relates to a UV viscous reducing adhesive and its application. Background technique [0002] In the thinning and polishing of mobile phone glass, the industry generally uses high-temperature paraffin to bond and fix it on the ceramic plate, and then use the touch head to thin and polish. This process requires the glass to be fixed on the ceramic substrate to withstand a certain shear force. Then polish in lye. After thinning and polishing, the paraffin wax needs to be melted at high temperature so that the glass can be removed from the substrate. Since there is a certain amount of residual paraffin wax on the contact surface between the glass and the paraffin wax, it needs to be cleaned with a solvent to remove it. Residual paraffin is not environmentally friendly, but also requires a lot of labor, increasing sewage and labor costs. [0003] The document CN103923572A discloses a method for producing a UV mucous-reducing film, which adopt...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09J175/14
Inventor 张宇刘翘楚
Owner 上海仁速新材料有限公司