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Photosensitive resin compsition

A technology of photosensitive resin and composition, which is applied in the field of photosensitive resin composition and protrusions for liquid crystal display elements, which can solve problems such as poor developing characteristics, and achieve the effects of excellent liquid crystal alignment and excellent voltage retention characteristics

Inactive Publication Date: 2008-05-14
SANYO CHEM IND LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] However, the above-mentioned photosensitive resin composition has a problem that its developing properties with respect to alkaline solutions are very poor.

Method used

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Examples

Experimental program
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Effect test

preparation example Construction

[0062] Examples of the (meth)acryloyl group-containing monocarboxylic acid used for the preparation of (A1) include acrylic acid and methacrylic acid.

[0063] The polycarboxylic acid and polycarboxylic acid anhydride (e) used in the preparation of (A1) can enumerate: unsaturated polycarboxylic acid (for example, maleic acid, itaconic acid, fumaric acid and methyl maleic acid etc.) and Their anhydrides (for example, maleic anhydride, etc.) Aliphatic saturated polycarboxylic acids such as pentadecenyl succinic acid and octadecyl succinic acid; tetrahydrophthalic acid, hexahydrophthalic acid, methyltetrahydrophthalic acid, trimellitic acid, benzene Aromatic polycarboxylic acids such as pyrene tetracarboxylic acid, biphenyl tetracarboxylic acid and naphthalene tetracarboxylic acid) and their anhydrides (for example, succinic anhydride, dodecenyl succinic anhydride, pentadecenyl succinic anhydride, octadecenyl succinic anhydride, etc. Aliphatic saturated polycarboxylic acid anhyd...

Embodiment

[0203] Hereinafter, the present invention will be specifically described by way of examples and preparation examples, but the present invention is not limited thereto. Hereinafter, "part" means "part by weight".

[0204] [Preparation of Hydrophilic Resin (A)]

preparation example 1

[0206] 200 parts of cresol novolac type epoxy resin EOCN-102S (manufactured by Nippon Kayaku, epoxy equivalent 200) and Heat 245 parts of propylene glycol monomethyl ether acetate to 110°C to dissolve it evenly. Next, 76 parts of acrylic acid, 2 parts of triphenylphosphine, and 0.2 part of p-methoxyphenol were added, and it was made to react at 110 degreeC for 10 hours. Add 91 parts of tetrahydrophthalic anhydride to the reactant, react at 90°C for 5 hours, and then dilute with propylene glycol monomethyl ether acetate to make the solid content 25%, to obtain acryloyl and Propylene glycol monomethyl ether acetate solution of carboxyl hydrophilic resin (A-1: Mn: 2,200; SP value: 11.26; HLB value: 6.42; acid value: 91 mgKOH / g; acryloyl group concentration: 2.86 mmol / g) (25% solids content).

[0207] It should be noted that Mn is a polymer measured by the GPC method using a GPC analyzer (HLC-8120GPC, manufactured by TOSHO Co., Ltd.) and a chromatographic column (two pieces of T...

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Abstract

The invention provides a photosensitive resin composite for LCD element. The composite has great alkali developing property, and when the composite is solidified, the liquid crystal alignment and voltage holding property are both excellent. The photosensitive resin composite, capable of developing in alkali condition for LCD element, includes: hydrophilic resin(A) with (methyl) acroloyl and carboxylic; polysiloxane(B); and free radical polymerization initiator(C). The aforesaid polysiloxane(B) is better to be with two or more hydrolytic alkoxyl.

Description

technical field [0001] The present invention relates to a photosensitive resin composition capable of being cured by a step including light irradiation, capable of alkali development, and used for forming protrusions for liquid crystal display elements, and protrusions for liquid crystal display elements formed using the composition. Background technique [0002] The liquid crystal display is displayed as follows: make the display side substrate and the liquid crystal driving side substrate face each other, and seal the liquid crystal compound between the two to form a thin liquid crystal layer, and use the liquid crystal driving side substrate to electrically control the alignment of the liquid crystal in the liquid crystal layer, so that Display is performed by selectively changing the amount of transmitted light or reflected light of the display side substrate. [0003] The driving methods of LCD panels include: TN (Twisted Nematic, twisted nematic) method, IPS (In-Plane-...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G03F7/075G03F7/028G02F1/1339G02F1/133G03F7/00
CPCG02B5/223G03F7/0007G03F7/027G03F7/031G03F7/033G03F7/0388G03F7/0392
Inventor 山本祐介大池拓郎
Owner SANYO CHEM IND LTD
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