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Photocurable resin composition, sealing material for fuel cells, cured product of said photocurable resin composition, cured product of said sealing material for fuel cells, fuel cell and sealing method

A photocurable resin and fuel cell technology, which can be used in fuel cell components, solid electrolyte fuel cells, fuel cells, etc., and can solve the problem of time-consuming processes

Active Publication Date: 2021-06-15
THREE BOND CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, since these heat-curable resin compositions require a heating step for curing, there is a problem of time-consuming process.

Method used

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  • Photocurable resin composition, sealing material for fuel cells, cured product of said photocurable resin composition, cured product of said sealing material for fuel cells, fuel cell and sealing method
  • Photocurable resin composition, sealing material for fuel cells, cured product of said photocurable resin composition, cured product of said sealing material for fuel cells, fuel cell and sealing method
  • Photocurable resin composition, sealing material for fuel cells, cured product of said photocurable resin composition, cured product of said sealing material for fuel cells, fuel cell and sealing method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0170] Examples are given below to describe the present invention in more detail, but the present invention is not limited to these Examples.

[0171]

Synthetic example 1

[0172] ・Synthesis example 1: Production of polyisobutylene (a1) having acryloyloxyethoxyphenyl group

[0173] After substituting nitrogen in the container of the 5 L separation flask, 200 mL of n-hexane and 2000 mL of butyl chloride were added, and cooled to -70°C while stirring under a nitrogen atmosphere. Next, 840 mL (9 mol) of isobutene, 12 g (0.05 mol) of p-dicumyl chloride, and 1.1 g (0.012 mol) of 2-picoline were added. After the reaction mixture was cooled to -70°C, 5.0 mL (0.05 mol) of titanium tetrachloride was added to initiate polymerization. Three hours after the start of the polymerization, 40 g of phenoxyethyl acrylate (LIGHTACRYLATE PO-A, manufactured by Kyoeisha Chemical Co., Ltd.) and 110 ml of titanium tetrachloride were added. Then, after continuing stirring at -70 degreeC for 4 hours, 1000 ml of methanol was added, and reaction was stopped.

[0174] The supernatant was fractionated from the reaction solution, and the solvent was distilled off. The produc...

Embodiment 1

[0178] 100 parts by mass of the polyisobutylene (a1) having an acryloyloxyethoxyphenyl group obtained in Synthesis Example 1 above, which is the component (A) of the present invention,

[0179] 3 parts by mass of 4-hydroxybutyl acrylate (4HBA, manufactured by Osaka Organic Chemical Industry Co., Ltd.) as component (b1-1) of component (B), and isobornyl methacrylate (SR423) as component (b2) , Sartomer company) 50 parts by mass,

[0180] (C) 2 parts by mass of bis(2,4,6-trimethylbenzoyl)-phenyl-phosphine oxide (Omnirad 819, manufactured by IGMResins B.V.), and

[0181] Add 0.05 parts by mass of acrylic resin particles (MR-2G, manufactured by Soken Chemical Co., Ltd.) with an average particle diameter of 1 μm as the component (D) to a planetary mixer, and mix with a planetary mixer at room temperature (25° C.) for 60 minutes under light-shielding to obtain The photocurable resin composition of Example 1. This photocurable resin composition is liquid at 25°C.

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Abstract

The purpose of the present invention is to provide a photocurable resin composition which is suited to application by means of screen printing, and which is able to be photocured in a short period of time. The present invention relates to a photocurable resin composition which is characterized by containing the components (A)-(D) described below. Component (A): a polymer which has one or more (meth)acryloyl groups and a polyisobutylene skeleton containing a -[CH2C(CH3)2]- unit Component (B): a monofunctional monomer which contains the component (b1) and the component (b2) described below Component (b1): a monofunctional monomer which has a (meth)acryloyl group and a hydroxy group Component (b2): a monofunctional monomer which has a (meth)acryloyl group but does not have a hydroxy group Component (C): a radical polymerization initiator Component (D): organic resin particles.

Description

technical field [0001] The present invention relates to a photocurable resin composition, a fuel cell sealing material, their cured products, a fuel cell, and a sealing method. Background technique [0002] In recent years, fuel cells have attracted attention as new energy systems for automobiles and households. A fuel cell refers to a power generation device that discharges electricity by chemically reacting hydrogen and oxygen. In addition, the fuel cell is a clean next-generation power generation device due to its high energy efficiency in power generation and the generation of water through the reaction of hydrogen and oxygen. Fuel cells include solid polymer fuel cells, phosphoric acid fuel cells, molten carbonate fuel cells, and solid oxide fuel cells. However, as far as solid polymer fuel cells are concerned, the operating temperature is relatively low ( 80°C), high power generation efficiency, and is expected to be used as energy sources for automobiles, power gene...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08F290/04C09K3/10H01M8/0284H01M8/10
CPCH01M8/10H01M8/0284Y02E60/50H01M2008/1095C08F290/042H01M8/0286C08F220/1811C08F220/20C08L51/06C09K3/10C09K2003/1062H01M8/1004
Inventor 山田浩司小山昭广曾我哲德
Owner THREE BOND CO LTD