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Photosensitive resin composition, its condensate and display panel used interval element formed therewith

A technology of photosensitive resin and composition, applied in the field of spacer for display panel and photosensitive resin composition, can solve the problems of difficulty in taking into account the characteristics of cured product and workability, the problem of storage stability, and the reduction of workability, etc. Excellent storage stability, sufficient heat resistance, and the effect of reducing waste

Active Publication Date: 2006-08-16
TAIYO HLDG CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in the case of a photosensitive resin composition using an epoxy-based crosslinking agent, since the epoxy group that undergoes a crosslinking reaction has high reactivity, storage stability becomes a problem, and there are troubles such as reduced operability. It is difficult to balance the characteristics and operability of cured products

Method used

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  • Photosensitive resin composition, its condensate and display panel used interval element formed therewith
  • Photosensitive resin composition, its condensate and display panel used interval element formed therewith
  • Photosensitive resin composition, its condensate and display panel used interval element formed therewith

Examples

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Embodiment

[0088] Hereafter, although an Example demonstrates this invention more concretely, this invention is not limited to these Examples. In addition, in the following, "part" means a mass part unless otherwise indicated.

[0089] Preparation of Photosensitive Resin Solution Containing Carboxyl Group

Synthetic example 1

[0091] Into a detachable flask equipped with a stirrer, a reflux condenser, and a thermometer, 4.1 parts of azobisisobutyronitrile and 286 g of propylene glycol monomethyl ether acetate were added, and the mixture was heated in a hot water bath so that the inner temperature became 70°C. A mixture of 124.5 parts of dicyclopentyl methacrylate represented by the general formula (1), 10.4 parts of styrene, and 58.9 parts of glycidyl methacrylate was dripped there over 3 hours to perform a polymerization reaction. It was further stirred at 70° C. for 3 hours, and it was confirmed by GPC that there was no unreacted monomer. To this polymer, 31.2 parts of acrylic acid and 1 part of triphenylphosphine were added, and reacted at 80-90° C. for 24 hours. After confirming the disappearance of the epoxy group by IR spectrum, 60.9 parts of tetrahydrophthalic anhydride was added, and it was made to react at 80 degreeC for 12 more hours, and obtained the carboxyl group containing photosensiti...

Synthetic example 1

[0093] Into a detachable flask equipped with a stirrer, a reflux condenser, and a thermometer, 4.1 parts of azobisisobutyronitrile and 125 g of propylene glycol monomethyl ether acetate were added, and the mixture was heated in a hot water bath so that the inner temperature became 70°C. A mixture of 55 parts of methyl methacrylate, 20.8 parts of styrene, and 42.7 parts of glycidyl methacrylate was added dropwise thereto for 3 hours to perform a polymerization reaction. It was further stirred at 70° C. for 3 hours, and it was confirmed by GPC that there was no unreacted monomer. In this polymer, 23.4 parts of acrylic acid and 0.8 part of triphenylphosphine were added and reacted at 80-90°C for 16 hours. After confirming the disappearance of the epoxy group by IR spectrum, add 45.7 parts of tetrahydrophthalic anhydride and react at 80°C for another 8 hours to obtain a carboxyl-containing photosensitive resin that does not contain the compound represented by the general formula (...

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Abstract

Provides sufficient storage stability without causing viscosity increase and gelation of the photosensitive resin composition under storage conditions at room temperature, and has both heat resistance and chemical resistance required as a permanent film, and can be formed A photosensitive resin composition for a spacer for a display panel excellent in compressive strength, a cured product thereof, and a spacer for a display panel. A composition comprising (A) a carboxyl group-containing photosensitive resin having both a carboxyl group and at least two ethylenically unsaturated bonds in one molecule, (B) having one or more vinyl groups in one molecule A polymerizable compound similar to an unsaturated bond, (C) a photopolymerization initiator, and (D) an oxetane compound having at least two oxetanyl groups in one molecule, wherein the carboxyl group-containing The photosensitive resin (A) is a carboxyl group-containing photosensitive resin containing a compound having an unsaturated double bond represented by general formula (1) as a copolymerization component.

Description

technical field [0001] The present invention relates to a photosensitive resin composition, a cured product thereof, and a spacer for a display panel formed from the cured product. More specifically, it relates to a photosensitive resin composition which is suitable as a material for forming a spacer for a display panel such as a liquid crystal panel or a touch panel, and which is excellent in storage stability and compressive strength, a cured product thereof, and a cured product thereof A spacer for a display panel formed of a material. Background technique [0002] Conventionally, in a liquid crystal panel, spacer particles such as glass beads or plastic beads having a predetermined particle diameter have been used in order to maintain a constant distance between two substrates. However, these spacer particles are randomly scattered on the glass substrate. Therefore, when the above-mentioned spacers are present in the effective pixel portion, there will be an image of th...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G03F7/027G03F7/028G03F7/20G03F7/32G03F7/40
CPCG03F7/033G03F7/027C08F2/50C08F290/06G03F7/029G03F7/032G03F7/031C08F220/286C08F220/325
Inventor 佐佐木正树有马圣夫
Owner TAIYO HLDG CO LTD