Ultraviolet light curing optical adhesive

A technology of adhesives and ultraviolet light, applied in the direction of adhesive additives, non-polymer organic compound adhesives, adhesive types, etc., can solve the problems of inability to meet the bonding requirements of capacitive touch screens, low light transmittance, high hardness, etc. problem, to achieve the effect of satisfying light transmittance and small shrinkage

Inactive Publication Date: 2013-06-19
YANTAI DARBOND TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Traditional UV-curable adhesives generally have high curing shrinkage, high hardness, and low light transmittance, which cannot meet the bonding requirements of capacitive touch screens.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] In a stirred tank, mix polyether polyurethane acrylate (molecular weight 12000) with a weight ratio of 90, C9 hydrogenated petroleum resin with a weight ratio of 25, lauryl acrylate with a weight ratio of 60, and hydroxypropyl methacrylate with a weight ratio of 10. Esters, 1-hydroxy-cyclohexyl phenyl ketone with a weight ratio of 6, 2,4,6-trimethylbenzoyl-diphenylphosphine oxide with a weight ratio of 2, and γ-formazan with a weight ratio of 3 Acryloyloxypropyltrimethoxysilane, stirred until uniform, vacuumed for defoaming, and discharged.

Embodiment 2

[0024] In a stirred tank, the polyester polyurethane acrylate (molecular weight 10000) with a weight ratio of 80, the hydrogenated rosin resin with a weight ratio of 20, the tridecyl acrylate with a weight ratio of 15, and the dicyclopentene with a weight ratio of 30 were mixed in a stirred tank. Oxyethyl acrylate, hydroxybutyl methacrylate at a weight ratio of 8, tricyclodecane dimethanol diacrylate at a weight ratio of 2, 2-hydroxy-methylphenylpropane- 1-keto, ethyl 2,4,6-trimethylbenzoylphenylphosphonate in a weight ratio of 2, γ-(2,3-glycidyloxy)propyltrimethoxy in a weight ratio of 2 Silane, stir until uniform, vacuum defoaming, discharge.

Embodiment 3

[0026] In a stirred tank, the hydroxyl-terminated polybutadiene type urethane acrylate (molecular weight 18000) with a weight ratio of 50, the hydrogenated terpene resin with a weight ratio of 30, the benzyl acrylate with a weight ratio of 10, and the Lauryl acrylate, hydroxyethyl methacrylate in a weight ratio of 5, 1-hydroxy-cyclohexyl phenyl ketone in a weight ratio of 4, 2,4,6-trimethylbenzoylbenzene in a weight ratio of 1 Ethyl phosphonate, gamma-methacryloxypropyltrimethoxysilane with a weight ratio of 2, stirred until uniform, vacuumized for defoaming, and discharged.

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Abstract

The invention relates to an ultraviolet light curing optical adhesive. By weight, the ultraviolet light polymerization optical adhesive comprises 50-100 parts of prepolymer, 20-90 parts of inertia resin, 35-70 parts of monomer, 5-12 parts of photoinitiator, 2-3 parts of coupling agents and 1-2 parts of addition agents. Contraction generated by curing of the ultraviolet light curing optical adhesive is very small, hardness of curing material is small, the flexibility of molecular chains is high and internal stress generated by curing is further absorbed.

Description

technical field [0001] The invention relates to an ultraviolet light curing adhesive, in particular to an ultraviolet light curing optical adhesive. Background technique [0002] At present, more and more display devices adopt touch screen as a very intuitive human-computer interaction mode, such as mobile phones, tablet computers, digital cameras, GPS navigators and so on. The capacitive touch screen has the characteristics of precise positioning, fast response, high resolution, good durability, etc., and can realize multi-touch, and is adopted more and more. [0003] In the past, when manufacturing capacitive touch screens, optically transparent adhesive (OCA film) was generally used to bond the various layers of materials. When laminating OCA film, the elimination of air bubbles is a very difficult problem to solve, and its reliability is average, and the cost is high, so it is only suitable for the lamination of small and medium-sized screens of 2 to 7 inches. [0004]...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09J4/02C09J4/06C09J11/06
CPCC09J165/00C08L93/04C09J133/14C08L2312/06C08F290/067C09J175/16C08L93/00C09J175/04C08G18/672C08G18/42C08G18/48C08G18/69C09J175/00
Inventor 崔亨利王建斌解海华
Owner YANTAI DARBOND TECH
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