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Resin composition for ultraviolet curable adhesive and adhesive

A resin composition and adhesive technology, applied in adhesives, polyurea/polyurethane adhesives, adhesive types, etc., can solve the problems of undiscovered materials, and achieve excellent polymerizability, excellent water resistance, and excellent holding power Effect

Active Publication Date: 2013-03-27
DIC CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0010] As mentioned above, in the field of ultraviolet curable adhesives that can improve production efficiency, the industry seeks materials that satisfy polymerizability, adhesion to substrates, and water resistance, but the actual situation is that such materials have not yet been found.

Method used

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  • Resin composition for ultraviolet curable adhesive and adhesive
  • Resin composition for ultraviolet curable adhesive and adhesive

Examples

Experimental program
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example

[0108] Hereinafter, the present invention will be described in more detail using examples.

Synthetic example 1

[0110] Synthesis of (meth)acrylic urethane resin (A-1)

[0111] To a reaction vessel equipped with a stirrer, a reflux cooling tube, a nitrogen introduction tube, and a thermometer, 465.9 parts by mass of polytetramethylene glycol (hydroxyl value 112 mgKOH / g), 9.6 parts by mass of 2-hydroxyethyl acrylate, 2,6 - 1.7 parts by mass of di-tert-butyl-cresol, 0.3 parts by mass of p-methoxyphenol. After the temperature in the reaction container was heated up to 40°C, 101.5 parts by mass of isophorone diisocyanate was added. Furthermore, 0.06 mass parts of dioctyltin dineodecanoates were added, and it heated up to 80 degreeC over 1 hour. Then, after holding|maintaining at 80 degreeC for 12 hours and confirming that all the isocyanate groups disappeared, it cooled and obtained (meth)acryl urethane resin (A-1). The obtained (meth)acrylic urethane resin (A-1) had an equivalent weight of an acryloyl group of 7,000, and a weight average molecular weight of 18,000.

example 1

[0113] To a container equipped with a stirrer, a reflux cooling pipe, and a thermometer, 100 parts by mass of the (meth)acrylic urethane resin (A-1) obtained in Synthesis Example 1 and 40 butyl acrylate were added at a temperature of 80° C. in the container. Parts by mass, 30 parts by mass of acryloylmorpholine, 17 parts of FTR-6100 (manufactured by Mitsui Chemicals Co., Ltd., weight average molecular weight: 1,154, number average molecular weight: 612, melt viscosity at 200° C.: 60 mPa·s), stirred to until uniform. Then, after cooling to room temperature, 4 parts by mass of 2-hydroxy-2-methyl-1-phenylpropane-1-one, 2,4,6-trimethoxybenzoyldiphenylphosphine oxide were added successively under stirring. 3 parts by mass, stir until uniform. Then, it filtered through the 200-mesh wire mesh, and obtained the resin composition for ultraviolet curing adhesives.

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PUM

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Abstract

The invention provides a resin composition for an ultraviolet curable adhesive and an adhesive. The resin composition contains a urethane(meth)acrylate resin (A) which is obtained by reaction of a polyol (a), a polyisocyanate (b) and a (meth)acrylic compound (c) containing a hydroxyl group, a (meth)acrylic monomer (B), a photopolymerization initiator (C) and an adhesion imparting agent (D), wherein the adhesion imparting agent (D) is obtained by reaction of more than one unsaturated aromatic compound (d-1) selected the group consisting of a styrene, an alpha-methyl styrene, a vinyl toluene, an indene and an isopropenyl toluene, and more than one unsaturated aliphatic compound (d-2) selected from a group consisting of an isobutylene, an butadiene, an isoprene, an piperylene and an dicyclopentadiene.

Description

technical field [0001] The present invention relates to a resin composition for an ultraviolet curable adhesive having excellent polymerizability, adhesion to a substrate, and water resistance, and an adhesive. Background technique [0002] In optical-related products typified by touch panels and liquid crystal displays, many optical members having various kinds of materials and shapes are used along with their high functionality. [0003] Adhesives have been conventionally used for lamination of the optical members as described above, but the industry has demanded an adhesive having excellent adhesiveness regardless of the material or shape of parts. [0004] In addition, at the production site of the above-mentioned optical-related products, improvement of productivity of final products has become a major issue in recent years. One of the reasons for this is that since conventionally used adhesives generally contain solvents such as solvents or water, it takes a lot of ti...

Claims

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Application Information

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IPC IPC(8): C09J175/14
Inventor 小西真理子纲岛启次田中浩二郎
Owner DIC CORP
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