Photocurable resin composition for forming optical waveguide, photocurable dry film for forming optical waveguide, and optical waveguide

A photocurable resin, a technology for curing resins, applied in the field of optical waveguides, can solve the problems of difficult composition, insufficient unsaturated groups and/or carboxyl groups, poor processability, and poor mechanical properties.

Inactive Publication Date: 2007-03-07
KANSAI PAINT CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In addition, unsaturated groups and / or carboxyl groups are sometimes not sufficiently introduced into the resin
[0007] In addition, the above-mentioned resin composition for forming an optical waveguide has a disadvantage in that a film formed using the composition has poor processability, mechanical properties, etc.
Therefore, it is difficult to use the composition as a dry film

Method used

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Examples

Experimental program
Comparison scheme
Effect test

manufacture Embodiment 1

[0116] Production Example 1 Production of Photocurable Resin Composition (1)

[0117] Methyl methacrylate (40 g), styrene (20 g), butyl acrylate (20 g) and acrylic acid (20 g) were radically reacted at 110° C. to obtain an acrylic resin (resin acid value: 155 mg KOH / g). Glycidyl methacrylate (24 g), hydroquinone (0.12 g) and tetraethylammonium bromide (0.6 g) were then added to the resin, and a reaction was carried out at 110° C. for 5 hours while introducing air, Thus, a photocurable resin is obtained. Subsequently, 100 g (solid state) of the photocurable resin, an aminoalkylphenone polymerization initiator (3 g; product of Ciba Specialty Chemicals; trade name "Irgacure 907") and ethyl acetate (400 g) were mixed together to obtain Photocurable resin composition (1).

manufacture Embodiment 2

[0118] Production Example 2 Production of Photocurable Resin Composition (2)

[0119] Except using methyl methacrylate (20g), styrene (40g), butyl acrylate (20g) and acrylic acid (20g) as acrylic resin monomer components, manufacture according to the steps of Example 1, so as to obtain photoresist The resin composition (2) is cured.

manufacture Embodiment 3

[0120] Production Example 3 Production of Photocurable Resin Composition (3)

[0121] At 95°C, hydrogenated bisphenol A diglycidyl ether (352g), acrylic acid (141.2g), p-methoxyphenol (0.2g) and triphenylphosphine (1.5g) were reacted for about 32 hours, and the acid value of the reaction system The reaction was terminated when it became 0.5 mg KOH / g or less. Then succinic anhydride (70 g) was added, and the reaction was carried out at 90° C. for about 10 hours to obtain a product (photocurable resin) having an acid value of 70 mg KOH / g. Subsequently, 60 g of said product, 5-ethyl 2-(2-hydroxy-1,1-dimethylethyl)-5-(hydroxymethyl)-1,3-dioxane diacrylate (40 g; product of Nippon Kayaku Co., Ltd.; trade name "kayarad R-604") and 1-hydroxycyclohexylbenzophenone (3 g) were mixed together to obtain a photocurable resin composition (3).

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Abstract

The present invention discloses photocurable resin compositions and photocurable dry films that are extremely useful for forming optical waveguides. The present invention provides a photocurable resin composition for forming an optical waveguide, which comprises a carboxyl group-containing unsaturated resin (A), which is obtained by reacting a carboxyl group-containing resin (a) and an epoxy group-containing unsaturated compound (b). obtaining; and a solvent (B); and providing a photocurable dry film for forming an optical waveguide formed using the resin composition.

Description

technical field [0001] The present invention relates to a photocurable resin composition for forming an optical waveguide, a photocurable dry film for forming an optical waveguide, and an optical waveguide. Background technique [0002] In recent years, an optical waveguide has attracted attention as an optical transmission medium, and it satisfies the demands for large-capacity and high-speed information processing in optical communication systems, computers, and the like. [0003] A quartz waveguide is a typical optical waveguide, but it has problems in that it requires special manufacturing equipment and takes a long time to manufacture. [0004] As an alternative to these quartz waveguides, organic polymer optical waveguides that do not suffer from the above-mentioned problems have been developed. [0005] JP2003-149475A discloses a resin composition for forming an optical waveguide, which includes an ethylenically unsaturated group-containing carboxylic acid resin havi...

Claims

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Application Information

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Patent Type & AuthorityApplications(China)
IPC IPC(8): G02B6/12G02B6/13C08F299/00G03F7/004G03F7/033G02B6/122G03F7/038
CPCG02B6/1221G03F7/0385C08F299/00G03F7/0388G03F7/038
Inventor小岛大辅樋口贵祐今井玄儿
OwnerKANSAI PAINT CO LTD