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Photosensitive resin composition

A technology of photosensitive resin and composition, applied in the field of photosensitive resin composition, can solve the problems of poor solvent resistance and the like

Inactive Publication Date: 2007-04-04
SUMITOMO CHEM CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] As the photosensitive resin used for spacer formation, there are known copolymers made of methacrylic acid, dicyclopentyl methacrylate, 2-hexahydrophthaloyloxyethyl methacrylate, etc. (JP-A-10-319592, line 2 in the left column on page 2-line 10 in the left column on page 2), but there is a problem of so-called poor solvent resistance

Method used

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Examples

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Embodiment

[0147] The present invention is explained in more detail below based on examples, but it is not meant that the present invention is limited by these examples. In the examples, unless otherwise specified, % and parts indicating content or usage-amount are based on weight.

Synthetic example 1

[0149]In a flask equipped with a reflux cooler, a dropping funnel, and a stirrer, 0.03 L / min was flowed with nitrogen as a nitrogen atmosphere, and 34.92 parts by weight of propylene glycol monomethyl ether acetate was added, and heated to 90° C. while stirring. Next, in 69.84 parts by weight of propylene glycol monomethyl ether acetate, 6.89 parts by weight of methacrylic acid, 34.28 parts by weight of 2-(methacryloyloxy) ethyl acetoacetate and 28.68 parts by weight of N -The polymerization initiator 2 of cyclohexylmaleimide, 3.28 parts by weight, 2'-azobis (isobutyronitrile), preparation solution, this solution is added dropwise to insulation at 90 ℃ by dropping funnel in 1 hour. in the flask at ℃. After the dropping of this solution was terminated, it was kept at 90° C. for 4 hours, and then cooled to room temperature to obtain a solution of a copolymer (resin Aa). The obtained resin Aa had a weight average molecular weight (Mw) of 14300 and a degree of dispersion of 2.45....

Synthetic example 2

[0151] In a flask equipped with a reflux cooler, a dropping funnel, and a stirrer, 0.03 L / min of nitrogen gas was flowed in as a nitrogen atmosphere, and 33.06 parts by weight of propylene glycol monomethyl ether acetate was added, and heated to 90° C. while stirring. Next, in 66.11 parts by weight of propylene glycol monomethyl ether acetate, 10.33 parts by weight of methacrylic acid, 34.28 parts by weight of 2-(methacryloyloxy) ethyl acetoacetate and 21.51 parts by weight of N -cyclohexylmaleimide, 3.28 parts by weight of the polymerization initiator 2,2'-azobis (isobutyronitrile) preparation solution, the solution was added dropwise to the solution at 90°C with a dropping funnel in 1 hour in the lower flask. After the dropwise addition of this solution was terminated, it was kept at 90° C. for 4 hours, and then cooled to room temperature to obtain a solution of a copolymer (resin Ab). The obtained resin Ab had a weight average molecular weight of 11900 and a degree of disp...

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PUM

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Abstract

The photosensitive resin composition contains a binder resin (A), a photopolymerizable compound (B), a photopolymerization initiator (C) and a solvent (D), wherein the binder resin (A) comprises a polymer (AA) containing a structural unit (A1) derived from at least one kind of compound selected from a group consisting of unsaturated carboxylic acids and unsaturated carboxylic acid anhydrides, a structural unit (A2) derived from an unsaturated compound having at least one kind of group selected from a group consisting of active methylene groups and active methine groups, and a structural unit (A3) derived from a monomer copolymerizable with the structural unit (A1) and the structural unit (A2), however, (A3) excluding the structural unit (A1) and the structural unit (A2).

Description

technical field [0001] The present invention relates to a photosensitive resin composition. Background technique [0002] As a display device, a liquid crystal display, a plasma display, a paper display, a touch panel, etc. are known. Among them, liquid crystal displays, touch panels, and the like are provided with spacers for holding the spacers between the color filters and the array substrates constituting the display device. At present, it is used as a spacer by dispersing spherical particles such as glass beads and plastic beads. [0003] However, if such spherical particles are used, the spherical particles are scattered randomly on the glass substrate, causing damage to TFT elements and electrodes, etc. The contrast of the display element is reduced. From this, it has been proposed to form the spacers with a photosensitive resin instead of using spherical particles. [0004] As the photosensitive resin used for spacer formation, there are known copolymers made of ...

Claims

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Application Information

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IPC IPC(8): G03F7/004
CPCG03F7/0045G03F7/0048G03F7/028G03F7/032
Inventor 武部和男森川通孝
Owner SUMITOMO CHEM CO LTD
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