Curable resin composition, cured article and optical artical

A curable resin and composition technology, applied in optics, optical components, instruments, etc., can solve the problems of low water absorption of optical properties, heat resistance of formability, surface hardness, accuracy of optical surface shape, insufficient toughness, etc. , to achieve the effect of surface hardness and precision metal mold transfer improvement, low water absorption, excellent optical properties

Inactive Publication Date: 2013-06-26
NIPPON STEEL CHEMICALL &MATERIAL CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Moreover, the composition obtained by this technique maintains the properties of silicone resins such as optical properties such as transparency, heat resistance, and weather resistance, but it is not as good as the accuracy of optical surface shape and toughness in optical lens applications. full
Therefore, until now, there has been no excellent optical properties, low water absorption, formability, heat resistance, surface hardness and other properties balanced, and optical properties under severe actual use conditions such as humid heat conditions, and inorganic materials. Soluble multifunctional copolymer with improved adhesion and precise transferability of metal mold shape, and curable resin composition using the same

Method used

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  • Curable resin composition, cured article and optical artical
  • Curable resin composition, cured article and optical artical
  • Curable resin composition, cured article and optical artical

Examples

Experimental program
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Embodiment

[0080] Next, the present invention will be described by way of examples, but the present invention is not limited thereto. In addition, the parts in each example are parts by weight unless otherwise specified. In addition, about the measurement of the softening temperature etc. in an Example, sample preparation and measurement were performed by the method shown below.

[0081] (Measurement of physical properties of copolymers and their cured products)

[0082] 1) Molecular weight and molecular weight distribution of the polymer

[0083] The molecular weight and molecular weight distribution of the soluble polyfunctional copolymer were measured using GPC (manufactured by Tosoh, HLC-8120GPC) with tetrahydrofuran (THF) as the solvent, 1.0 ml / min flow rate, and 40° C. column temperature. The molecular weight of the copolymer was measured as a polystyrene-equivalent molecular weight using a calibration curve using monodisperse polystyrene.

[0084] 2) The structure of the polyme...

Synthetic example 1

[0128] Dimethylol tricyclodecane diacrylate 1.6mol (463.2ml), dicyclopentyl methacrylate 1.2mol (254.2ml), 1,4-butanediol diacrylate 1.2mol (226.3ml) , 2,4-diphenyl-4-methyl-1-pentene (0.4mol (95.5ml), tertiary dodecyl mercaptan 2.4mol (564.8ml), toluene 600ml into a 3.0L reactor , Add 40mmol (11.5g) of tert-butyl peroxy-2-ethylhexanoate at 90°C and allow it to react for 2 hours and 45 minutes. After the polymerization reaction is stopped by cooling, the reaction mixture is put into The copolymer was precipitated in a large amount of hexane. The obtained copolymer was washed with hexane, filtered, dried, and weighed to obtain 691.0 g of copolymer A.

[0129] Mw of the obtained copolymer A was 34200, Mn was 5620, and Mw / Mn was 6.1. by carrying out 13 C-NMR, 1 H-NMR analysis and elemental analysis, copolymer A contains a total of 39.6 mol% of structural units (1) derived from dimethyloltricyclodecane diacrylate, a total of 31.1 mol% of dicyclopentanyl methacrylate derived fro...

Synthetic example 2

[0132] Dimethyloltricyclodecane diacrylate 2.64mol (764.3ml), dicyclopentyl acrylate 0.24mol (47.2ml), 1,4-butanediol diacrylate 0.96mol (181.0ml), acrylic acid 0.96mol (118.5ml) of 2-hydroxypropyl ester, 0.48mol (114.6ml) of 2,4-diphenyl-4-methyl-1-pentene, 3.12mol (734.3ml) of tert-dodecyl mercaptan, 720 ml of toluene was put into a 3.0 L reactor, and 62 mmol (13.9 g) of tert-butylperoxy-2-ethylhexanoate was added at 90° C., and reacted for 2 hours and 30 minutes. After the polymerization reaction was stopped by cooling, the reaction mixture was poured into a large amount of hexane at room temperature to precipitate a copolymer. The obtained copolymer was washed with hexane, filtered, dried, and weighed to obtain 782.2 g of copolymer B.

[0133] Copolymer B was tested in the same manner as copolymer A, and the results are shown in Table 1.

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Abstract

The invention provides a curable resin composition and a cured article thereof, wherein excellent optical characteristic, heat resistance, precise metal mould transfer-printing performance are provided, and the curable resin composition is excellent material for preparing an optical lens and a prism. The curable resin composition contains 20 to 80 wt% of a component (A) which has a plurality of reactive unsaturated group, Mw is 2000 to 100000 and the toluene and so on can be dissolved in solvent soluble multi-functional co-polymers; 5.0 to 50 wt% of the (B) component the [R1SiO 3/2 ] n, wherein R1 is provided with methyl propylene acyl organic functional groups, n is 10 or 8 or 12 and the organic polymer silsesquioxane as main component of organic silicon resin; 5.0 to 75wt % of a component (C) is in the molecule have 1 to 6 methyl propylene acyl of methyl acrylic ester; and 0.1 to 10 wt% d of the ingredient (D) which is the initiator.

Description

technical field [0001] The present invention relates to a product having excellent optical properties such as refractive index and high light transmittance, heat resistance and processability, and optical properties under severe actual use conditions such as humid heat conditions, low water absorption and good molding properties. A curable resin composition, a cured product, and an optical article with improved releasability, precision metal mold transferability, and surface hardness. Background technique [0002] Conventionally, relatively inexpensive thermoplastic resins such as polycarbonate resins, methacrylic resins, and alicyclic olefin polymers have been used in optical fields such as camera lenses (lenses). However, these thermoplastic resins are low in heat resistance temperature and surface hardness, and are hardly used in the advanced technical field of opto-electronic materials requiring high heat resistance, surface hardness and microfabrication. [0003] As a ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08F291/14C08F291/06C08F291/00G02B1/04
CPCC08F220/18C08F222/1006C08F283/12C08G77/20C08L33/06G02B1/041
Inventor 川边正直和佐野次俊林健太郎
Owner NIPPON STEEL CHEMICALL &MATERIAL CO LTD
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