Photocurable resin composition for laminating optically functional material
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A resin composition and light-curing technology, applied in the direction of non-polymer organic compound adhesives, adhesive types, grafted polymer adhesives, etc., can solve LCD cracking, adhesive surface peeling, and LCD display Spots and other issues
Inactive Publication Date: 2014-02-19
KYORITSU KAGAKU SANGYO KK
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In the case of suppressing this deformation with a conventional adhesive (for example, Patent Document 1), there are problems of peeling of the adhesive surface, cracking of the LCD, or display spots of the LCD
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Embodiment 1
[0082] The components shown in Tables 1 and 2 were mixed in the amounts (parts by mass) shown in Tables 1 and 2 to obtain the photocurable resin compositions of Examples A to I.
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Abstract
Disclosed is a photocurable adhesive composition which, in the lamination of a decorated plate or an icon sheet on a touch panel or in the lamination of a transparent substrate with a transparent electrode formed thereon on a transparent plate in an electrostatic capacitive touch panel, can impart satisfactory adhesive properties and can realize the lamination without incorporating air bubbles. Also disclosed is a photocurable resin composition for use in the lamination of a display and an optically functional material on each other, which, when a display is laminated on an optically functional material, does not cause the delamination of a bonded surface or the breaking of a glass in the display. The photocurable adhesive composition comprises (A) a (meth)acrylate oligomer having a polyisoprene, polybutadiene, or polyurethane skeleton, (B) a softening component, and optionally (C) (C1) a (meth)acrylate monomer selected from phenoxyethyl(meth)acrylate, phenoxy polyethylene glycol(meth)acrylate, 2-hydroxy-3-phenoxypropyl(meth)acrylate, and cyclohexyl(meth)acrylate, (C2) or a thiol compound. The photocurable resin composition can provide a cured product having a modulus of elasticity and an elongation at break both of which fall within given ranges.
Description
[0001] This application is a divisional application of application number 2009801345088. The filing date of the parent application is September 4, 2009, and the priority date of the parent application is September 5, 2008. The invention title of this divisional application is the same as that of the parent application. technical field [0002] The invention relates to a photocurable adhesive composition for bonding touch panels, which contains (meth)acrylate oligomers with polyisoprene, polybutadiene or polyurethane on the skeleton and softening components; It relates to a photocurable adhesive composition, which contains the (meth)acrylate oligomer, a softening component and a specific (meth)acrylate monomer or thiol compound, and its cured product has a specific elastic modulus and elongation at break; and a touch panel or a display panel pasted with the above photocurable adhesive composition. Background technique [0003] There are resistive film type, electrostatic capa...
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