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Photocurable resin composition

A technology of photocurable resin and composition, which is applied in the field of photocurable resin composition and cured body, can solve the problems of unknown vibration fatigue durability resin composition, etc., and achieve excellent vibration fatigue durability and excellent fatigue resistance characteristics Effect

Active Publication Date: 2009-01-28
DENKA CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, there is no known resin composition suitable for the above-mentioned photocuring casting method that satisfies the vibration fatigue durability required for conventional elastomers.

Method used

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  • Photocurable resin composition
  • Photocurable resin composition
  • Photocurable resin composition

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1～17 and comparative example 1～7

[0149] Hereinafter, each component of the kind shown in Table 1-1, Table 1-2, and Table 1-3 was mixed according to the composition (weight%) shown in a table|surface, and the photocurable resin composition was prepared.

[0150] In addition, the following compounds were selected as each component in the compounding composition described in the Example and the comparative example.

[0151] As (A) component,

[0152] (A-1) Polyester polyol polyurethane acrylate

[0153] (Nippon Synthetic Chemical Industry Co., Ltd. product name UV-3000B)

[0154] (The weight average molecular weight of polystyrene measured by GPC is 18000)

[0155] (A-2) Polyether polyol polyurethane acrylate

[0156] (Nippon Synthetic Chemical Industry Co., Ltd. product name UV-3700B)

[0157] (The weight-average molecular weight converted to polystyrene measured by GPC is 37000)

[0158] (A-3) Polyester polyol polyurethane acrylate

[0159] (Negami Industry Co., Ltd. product name KHP-11)

[0160] (The w...

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Abstract

Disclosed is a photocurable resin composition suitable for photocuring cast molding, particularly a photocurable resin composition having excellent vibration fatigue durability. The photocurable resin composition comprises (A) at least one resin selected from a photoradical-polymerizable resin, photoradical-addition-polymerizable resin and a photocation-polymerizable resin, (B) a photopolymerization initiator, and one or both of (C) an antioxidant and (D) a photostabilizer. When cured, the photocurable resin composition shows a tensile elastic modulus of 1-30 MPa and a tensile elongation at break of 200% or more. The photocurable resin composition may additionally comprise (E) a rubber composition.

Description

technical field [0001] The present invention relates to a photocurable resin composition and a cured body curable by irradiation with light such as ultraviolet rays or visible rays, and more specifically, to a photocurable resin composition and a cured body excellent in vibration fatigue durability. Background technique [0002] In general, a composition endowed with so-called rubber characteristics such as flexibility, stretchability, and elasticity is called an elastomer, and its fatigue durability against vibration is much better than that of other polymer materials. Therefore, it is suitable for automobile parts such as tires, sealing parts for structures such as civil engineering and construction, gasket parts such as O-rings, audio parts such as speakers, panel parts such as key sheets for mobile phones, anti-vibration materials, various structural components, etc. [0003] Natural rubber, modified natural rubber, grafted natural rubber, cyclized natural rubber, chlor...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08F290/06
CPCC08K5/57C08F290/06
Inventor 后藤庆次渡边淳清水纪弘
Owner DENKA CO LTD
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