Adhesive Agent For Optical Member And Active Energy Ray And/or Heat Hardening Adhesive Composite, Optical Member Having Adhesive Layer Attached Thereto, And Image Display Device
An active energy ray, adhesive layer technology, applied in the direction of adhesive type, graft polymer adhesive, film/flake adhesive, etc., can solve the problems of uneven color, light leakage, etc. The effect of excellent haze, excellent adhesion, and excellent light leakage resistance
Active Publication Date: 2014-09-17
MITSUBISHI CHEM CORP
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- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
As a result, color unevenness and light leakage occur in the liquid crystal display device such that the peripheral part of the liquid crystal display device is brighter or darker than the center.
Method used
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Experimental program
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Effect test
Embodiment 1～13、 comparative example 1～6
[0250] The ingredients prepared and prepared as described above were mixed in the proportions shown in Table 2 below to prepare an adhesive composition to be an adhesive forming material for optical parts, which was diluted with ethyl acetate (viscosity [500-10000mPa·s (25°C)]), to prepare an adhesive composition solution.
[0251] Next, the adhesive composition solution obtained above was coated on a polyester release sheet so that the thickness after drying was 25 μm, and after drying at 90° C. for 3 minutes, the formed adhesive composition layer was transferred to Printed on a polyethylene terephthalate (PET) film (thickness 38μm), using an electrodeless lamp [H bulb of LH6UV lamp] manufactured by Fusion Corporation, with a peak illuminance: 600mW / cm 2 , cumulative exposure: 240mJ / cm 2 UV irradiation (120mJ / cm 2 , 2 pulses), aging for 10 days under the conditions of 23° C. and 65% R.H. to obtain a PET film with an adhesive layer.
[0252] Using the PET film with an adhes...
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Abstract
The invention relates to adhesive agent for an optical member and active energy ray and / or heat hardening adhesive composite, the optical member having an adhesive layer attached thereto, and an image display device. The adhesive agent for the optical member is obtained by curing a self-adhesive composition [I] with active energy rays and / or heat, wherein the self-adhesive composition [I] contains an acrylic resin (A), an aromatic compound (B) containing one ethylenically unsaturated group, and an ethylenically unsaturated compound (C) containing at least two ethylenically unsaturated groups. The content of the aromatic compound (B) is 3-300 pts.wt. relative to 100 pts.wt. of the acrylic resin (A), and the content ratio (mol%) of the aromatic compound (B) to the total content of the aromatic compound (B) and the ethylenically unsaturated compound (C) is more than 50 mol%.
Description
[0001] The application date is January 20, 2011, the application number is PCT / JP2011 / 050916, and the title of the invention is adhesive, adhesive for optical components, optical component with adhesive layer, image display device, Divisional application for application of active energy rays and / or thermosetting adhesive composition, adhesive composition. technical field [0002] The present invention relates to an adhesive (pressure-sensitive adhesive), an adhesive for optical parts, an optical part with an adhesive layer obtained using the same, an image display device, an active energy ray curable and / or thermal Curable adhesive composition. Specifically, it relates to an optical film (polarizing film, retardation film, optical compensation film, brightness enhancement film, etc.) suitable for image display devices such as a liquid crystal display device, an organic EL display device, and a PDP (plasma display panel), and more specifically Specifically, it relates to an op...
Claims
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IPC IPC(8): C09J4/02C09J4/06C09J7/02G02B5/30
CPCC09J151/04G02B5/30C08K5/0025C09J4/00C09J7/22C09J7/35C09J7/38C09J133/00C09J2203/318C09J2301/30G02B5/3025G02B5/305
Inventor 铃木秀昭高木圣子三谷直也堀家浩史
Owner MITSUBISHI CHEM CORP