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Composite molded body and method for producing same

A composite molded body and molded body technology, applied in the field of molding, can solve the problems of damage to its physical properties, insufficient heat resistance of foamed bodies, etc., and achieve the effect of high degree of design freedom

Active Publication Date: 2013-03-27
KANEKA CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

For example, when a heat-curable silicone gel is combined with a foam such as polyurethane, when the curable silicone composition is cured on the foam, the heat resistance of the polyurethane-based foam may be insufficient. , the problem of detrimental to its physical properties

Method used

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  • Composite molded body and method for producing same
  • Composite molded body and method for producing same
  • Composite molded body and method for producing same

Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0110] Hereinafter, specific examples and comparative examples of the present invention will be described together, but the present invention is not limited to the following examples.

[0111] In addition, in the following Examples, the ultraviolet irradiation apparatus used the Fusion UV system Japan Co., Ltd. Light Hanma 6 and H Ball. For the measurement of peak illuminance and integrated light intensity, the UV integrated light meter UIT-150-A (sensitivity wavelength range 310-390nm, calibration wavelength 365nm) was used. For the measurement of the hardness, an E-type durometer according to JIS K6253 was used.

[0112] (Preparation of sheet-like foamed resin moldings)

[0113] Synthesis of Allyl-terminated Polypropylene Oxide Polymers

[0114] Polyoxypropylene diol with a molecular weight of about 10,000 was used as an initiator to polymerize propylene oxide with a zinc hexacyanocobaltate gram complex catalyst, and a number average molecular weight of about 28,500 was ...

manufacture example 1）

[0124] Production method of poly(n-butyl acrylate) having acryloyl groups at both ends

[0125] 100 parts of n-butyl acrylate were deoxidized. Deoxygenate the inside of the reaction vessel, add 0.42 parts of cuprous bromide, 20 parts of deoxygenated n-butyl acrylate, 4.4 parts of acetonitrile, and 1.8 parts of diethyl 2,5-dibromoadipate, and mix at 80°C. 0.018 part of pentamethyldiethylenetriamine (hereinafter abbreviated as triamine) was added to start the polymerization reaction. The remaining 80 parts of n-butyl acrylate were gradually added to perform a polymerization reaction. During the polymerization, triamine was appropriately added to adjust the polymerization rate, and the polymerization was carried out while adjusting the internal temperature to about 80°C to about 90°C. When the monomer conversion rate (polymerization reaction rate) is about 95% or more, introduce oxygen-nitrogen mixed gas into the gas phase part of the reaction vessel, and heat and stir while ...

manufacture example 2）

[0127] Production method of poly(n-butyl acrylate) having acryloyl group at one end

[0128] 100 parts of n-butyl acrylate were deoxidized. Deoxygenate the inside of the reaction vessel, add 0.42 parts of cuprous bromide, 20 parts of deoxygenated n-butyl acrylate, 4.4 parts of acetonitrile, 1.9 parts of ethyl α-bromobutyrate, mix at 80°C, add pentamethyldi 0.018 parts of ethylenetriamine (hereinafter referred to as triamine) to start the polymerization reaction. The remaining 80 parts of n-butyl acrylate were gradually added to perform a polymerization reaction. During the polymerization, triamine was appropriately added to adjust the polymerization rate, and the polymerization was carried out while adjusting the internal temperature to about 80°C to about 90°C. When the monomer conversion rate (polymerization reaction rate) is about 95% or more, introduce oxygen-nitrogen mixed gas into the gas phase part of the reaction vessel, and heat and stir while maintaining the inte...

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Abstract

The present invention relates to a composite molded body comprising a molded body (A) and a rubber or gel cured product (B), characterized in that the rubber or gel cured product (B) is a cured product obtained by curing a curable composition (C) which is cured by an active energy ray. The present invention also relates to a molding method to obtain a composite molded body by pouring the curable composition (C) into a cavity in the molded body (A), then irradiating with an active energy ray to cure the curable composition (C) to form a rubber or gel cured product (B), with the purpose of obtaining a composite which has the functions of both materials thereof without the shape or performance of either of the materials being degraded.

Description

technical field [0001] The present invention relates to a composite molded body and a method for producing the composite molded body. More specifically, it relates to a composite molded body, which is a composite molded body of a molded body (A) and a rubber or gel-like cured product (B), wherein the rubber or gel-like cured product (B) is made of A cured product obtained by curing the active energy ray-cured curable composition (C). It also relates to a molding method in which the curable composition (C) is injected into the cavity of the molded body (A), and then irradiated with active energy rays to cure the curable composition (C) to form a rubber or gel-like cured product ( B) to obtain a composite molded body. Background technique [0002] Currently, impact absorbing materials, vibration damping materials, vibration-proof materials, sound insulating materials, sound absorbing materials, Pressure dispersing materials, etc. [0003] These materials and parts are used...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08J5/00C08L33/00B29C39/10C08F4/40C08F299/00
CPCB29C2035/0827C08L33/08C08J5/00B29C35/08B29C2045/0075C08F299/00C08L71/02B29K2995/0002B29K2995/0091
Inventor 河野良行
Owner KANEKA CORP