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Curable resin composition and cured product thereof

A technology for curable resins and compositions, applied in the directions of non-polymer organic compound adhesives, applications, coatings, etc., can solve the problems of reduced strength and heat resistance of resin compositions, insufficient end groups, etc. Effects of improved adhesion, excellent balance of properties, and high light transmittance

Active Publication Date: 2012-06-27
NIPPON STEEL CHEMICALL &MATERIAL CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in the technique disclosed in this document, since no difunctional or higher vinyl compound having a plurality of vinyl groups is added during polymerization, there is a possibility that only one or less molecular weight regulators can be introduced into the polymer chain. The terminal group has a defect that the function from the terminal group cannot be imparted sufficiently
[0011] Furthermore, in this document, although the self-curing copolymer obtained according to the disclosed technology forms a thermosetting resin composition in a resin composition with an epoxy resin, it does not cause a curing reaction with an acrylate resin. , so there is also the disadvantage of reducing the strength and heat resistance of the resin composition that is blended.

Method used

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  • Curable resin composition and cured product thereof
  • Curable resin composition and cured product thereof
  • Curable resin composition and cured product thereof

Examples

Experimental program
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Embodiment

[0107] Next, the present invention will be described with examples, but the present invention is not limited to these examples. In addition, the parts in each example are parts by weight. In addition, the measurement of each physical property in the Example prepared and measured the sample by the method shown below.

[0108] 1) Molecular weight and molecular weight distribution of polymer

[0109] The molecular weight and molecular weight distribution of the soluble polyfunctional (meth)acrylate copolymer were measured using GPC (Tosoh Corporation, HLC-8120GPC), solvent: tetrahydrofuran (THF), flow rate: 1.0 ml / min, column temperature: 40°C Proceed under. The molecular weight of the copolymer was measured with a polystyrene conversion molecular weight meter using a standard curve generated from monodisperse polystyrene.

[0110] 2) The structure of the polymer

[0111] It was confirmed by 13C-NMR and 1H-NMR analysis and elemental analysis using a JNM-LA600 nuclear magnetic resonanc...

Synthetic example 1

[0159] Dimethylol tricyclodecane diacrylate 3.2 moles (926.5 ml), isobornyl methacrylate 8.0 moles (1814.1 ml), 2-hydroxypropyl methacrylate 4.8 moles (645.5 ml), 2, 4 -4.8 moles (1145.9 ml) of diphenyl-4-methyl-1-pentene and 2400 ml of toluene were put into a 10.0L reactor, and 240 mmol of benzoyl peroxide was added at 90°C to react for 6 hours . After the polymerization reaction was stopped by cooling, the reaction mixture was poured into a large amount of hexane at room temperature to precipitate the polymer. The obtained polymer was washed with hexane, filtered, dried, and weighed to obtain 1392.6 g of copolymer A (yield: 40.5 wt%).

[0160] The obtained copolymer A had Mw of 8950, Mn of 3470, and Mw / Mn of 2.58. Go through 13 C-NMR, 1 According to H-NMR analysis and elemental analysis, copolymer A contained 18.2 mol% of structural units derived from dimethylol tricyclodecane diacrylate in total, 51.1 mol% of structural units derived from isobornyl methacrylate, and methyl ...

Synthetic example 2

[0163] 4.8 moles (950.4g) of 1,4-butanediol diacrylate, 6.4 moles (922.7g) of tricyclo[5.2.1.02,6]dec-8-yl methacrylate, 2-hydroxypropyl methacrylate 4.8 moles (692.2g) of ester, 4.8 moles (1135g) of 2,4-diphenyl-4-methyl-1-pentene, and 2400ml of toluene were put into a 10.0L reactor, and 240mmol of peroxide was added at 90°C. Benzoyl was oxidized and reacted for 6 hours. After the polymerization reaction was stopped by cooling, the reaction mixture was poured into a large amount of hexane at room temperature to precipitate the polymer. The obtained polymer was washed with hexane, filtered, dried, and weighed to obtain copolymer B.

[0164] The obtained copolymer B had Mw of 12,500, Mn of 3640, and Mw / Mn of 3.43. Go through 13 C-NMR, 1 According to H-NMR analysis and elemental analysis, copolymer B contains a total of 27.8 mol% of structural units derived from 1,4-butanediol diacrylate and derived from tricyclo[5.2.1.02,6]dec-8-yl methacrylate The total structural unit of 27.8...

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Abstract

A polyfunctional (methyl) acrylic ester composition is provided to have excellent optical properties of low color dispersibility and high optical transmissivity and to have excellent the balance of various properties needed for an optical lens or prism material. The polyfunctional (methyl) acrylic ester composition maintains excellent optical properties and does not cause reflective index differentiation even under severe and moisture use conditions. A curable resin composition comprises a soluble polyfunctional (meth)acrylic acid ester copolymer (A), and a monomer including at least one functional group containing polymerizable unsaturated double bond (B). The copolymer is manufactured through the copolymerization of monofunctional (meth)acrylic acid ester with a cycloaliphatic structure (a), a monofunctional (meth)acrylic acid ester with alcoholic hydroxy group(b), bifunctional (meth)acrylic acid ester(c), and 2,4-diphenyl-4-methyl-1-pentene(d). The content of component A is 1-70wt%.

Description

Technical field [0001] The present invention relates to excellent optical properties such as low color dispersion and high light transmittance, heat resistance, and processability, and optical properties under harsh actual use conditions such as humid heat conditions, low water absorption, and compatibility with inorganic materials. A curable resin composition with improved adhesion and a cured product thereof. Background technique [0002] Many monomers containing reactive unsaturated bonds can select catalysts that cause chain reactions and appropriate reaction conditions to form multimers by breaking the unsaturated bonds. Generally, there are many types of monomers with unsaturated bonds, so the variety of resins obtained is also remarkable. However, there are few types of monomers that can obtain a high molecular weight product with a molecular weight of 10,000 or more, which is generally called a polymer compound. For example, ethylene, substituted ethylene, propylene, su...

Claims

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Application Information

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IPC IPC(8): C08F265/06C08F267/06G02B1/04G02B5/04C09D4/02C09D4/06C09D11/10C09J4/02C09J4/06C08F2/44C08F220/18
CPCC08F2/44C08F20/10C08F265/04C08L33/04G02B1/04
Inventor 川边正直宫田刚
Owner NIPPON STEEL CHEMICALL &MATERIAL CO LTD
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