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, graft polymer adhesives, etc., can solve the problem of peeling of the adhesive surface, LCD display spots, LCD problems such as rupture
Active Publication Date: 2011-08-03
KYORITSU KAGAKU SANGYO KK
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In the case of suppressing this deformation with a conventional adhesive (for example, Patent Document 1)
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[0080] (Example 1)
[0081] The components shown in Tables 1 and 2 were blended 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
technical field [0001] 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 [0002] There are resistive film type, electrostatic capacitive type, electromagnetic induction type, optical type, and the like for touch panels mounted on displays such as LCDs. On these touch panels, a decorative plate for improving the appearance design or an icon sheet (ァイコンシート) for designating a touch position may be pasted. In addition, the capacitive touch panel has a...
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