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Curable resin composition and cured product thereof

A curable resin and composition technology, applied in the direction of non-polymer organic compound adhesives, applications, coatings, etc., can solve the problems of resin composition strength, heat resistance reduction, insufficient terminal groups, etc., to achieve Effects of improved adhesion, excellent property balance, and high light transmittance

Active Publication Date: 2015-10-07
NIPPON STEEL CHEM &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

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Embodiment

[0107] Next, although an Example demonstrates this invention, this invention is not limited to these Examples. It should be noted that the parts in each example are parts by weight. In addition, the measurement of each physical property in an Example carried out sample preparation and measurement by the method shown below.

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

[0109] The molecular weight and molecular weight distribution of the soluble polyfunctional (meth)acrylate copolymer were measured using GPC (Tosoh Corporation, HLC-8120GPC) in solvent: tetrahydrofuran (THF), flow rate: 1.0ml / min, column temperature: 40°C next. The molecular weight of the copolymer was measured as a polystyrene-equivalent molecular weight using a calibration curve derived from monodisperse polystyrene.

[0110] 2) The structure of the polymer

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

Synthetic example 1

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

[0160] Mw of the obtained copolymer A was 8950, Mn was 3470, and Mw / Mn was 2.58. by carrying out 13 C-NMR, 1 H-NMR analysis and elemental analysis showed that copolymer A contained a total of 18.2 mol% of structural units derived from dimethyloltricyclodecane diacrylate, a total of 51.1 mol% of structural units deri...

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 supernatant was added at 90°C. Benzoyl was oxidized and allowed to react for 6 hours. After the polymerization reaction was stopped by cooling, the reaction liquid mixture was poured into a large amount of hexane at room temperature to precipitate a polymer. The obtained polymer was washed with hexane, filtered, dried, and weighed to obtain a copolymer B.

[0164] Mw of the obtained copolymer B was 12500, Mn was 3640, and Mw / Mn was 3.43. by carrying out 13 C-NMR, 1 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 A total of 27.8...

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Abstract

PROBLEM TO BE SOLVED: To provide a multi-functional (meth)acrylate composition having excellent optical characteristics such as low chromatism, high light transmittance, etc., excellent in various characteristic balances required for an optical lens / prism material, and even under an actual severe using condition such as a moist and hot condition, maintaining a high degree of the optical characteristics without causing the bifurcation of refractive index. SOLUTION: This resin composition consisting of a component (A) and a component (B) is provided with that the component (A) is a copolymer having a polymerizable group, and obtained by copolymerizing a component containing (a) a mono-functional (meth)acrylate having an alicyclic type structure, (b) a mono-functional (meth)acrylate having an alcoholic hydroxy group, (c) a bi-functional (meth)acrylate and (d) 2,4-diphenyl-4-methyl-1-pentene, the component (B) is a monomer having ≥1 functional group having an unsaturated double bond, and the blending amount of the component (A) is 1 to 70 wt.%.

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 severe actual use conditions such as hot and humid 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 form multimers by selecting catalysts that cause chain reactions and appropriate reaction conditions by breaking unsaturated bonds. Generally, since the types of monomers having unsaturated bonds are diverse, the variety of resins to be obtained is also remarkable. However, there are few kinds of monomers from which a high-molecular-weight body having a molecular weight of 10,000 or more, which is generally called a high-molecular compound, can be obtained. Examples include ethyl...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08F265/06C08F267/06G02B1/04G02B5/04C09D4/02C09D4/06C09D11/101C09J4/02C09J4/06C08F2/44C08F220/18
CPCC08F2/44C08F20/10C08F265/04C08L33/04G02B1/04
Inventor 川边正直宫田刚
Owner NIPPON STEEL CHEM &MATERIAL CO LTD
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