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Flame-retardant sheet and flame-retardant composite member

A flame-retardant composite and sheet technology, which is applied in the direction of railway car body parts, lighting device parts, film/sheet adhesives, etc., can solve the problem of low flexibility, low non-combustibility, and non-combustibility of light-scattering sheets. Insufficient performance and other problems, to achieve the effect of excellent flame retardancy, strength improvement, high flame retardancy

Active Publication Date: 2016-02-03
NITTO DENKO CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, conventional covers obtained by applying an inorganic coating agent to a glass fiber sheet or impregnating the sheet with the agent involve a problem in that when the binder of the agent contains an organic component, the Low non-flammability of the cover
However, each of these light-scattering sheets has insufficient incombustibility and low flexibility

Method used

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  • Flame-retardant sheet and flame-retardant composite member
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  • Flame-retardant sheet and flame-retardant composite member

Examples

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Embodiment

[0208] Now, the present invention will be described more specifically by way of examples and comparative examples. However, the present invention is by no means limited to these. It should be noted that in the following description, "parts" and "%" are by weight unless otherwise specified.

Synthetic example 1

[0210] 50 g of a colloidal silica solution (trade name: SNOWTEXOS, manufactured by Nissan Chemical Industries, Ltd., solid content concentration: 20%) with an average particle diameter of 8 nm to 11 nm and 84 g of 2-propanol were charged to a device including a stirrer, a reflux condenser, and Nitrogen gas is introduced into the container of the tube. Concentrated nitric acid was added to adjust the acidity (pH) of the resulting liquid to be in the range of 2-4. Next, the temperature of the mixture was raised to 70° C., and then, using a dropping funnel, 25 g of a silsesquioxane compound having a reactive methoxysilyl group at a molecular terminal (commercial Name: X-40-9225, manufactured by Shin-Etsu Chemical Co., Ltd., methoxyl content: 24%), the liquid prepared was added dropwise to the mixture over 1.25 hours to carry out the colloidal reaction of the silsesquioxane compound Reactions on the surface of silica particles.

[0211] Next, a liquid prepared by dissolving 75 g...

Synthetic example 2

[0213] 50 g of a colloidal silica solution (trade name: SNOWTEXOS, manufactured by Nissan Chemical Industries, Ltd., solid content concentration: 20%) with an average particle diameter of 8 nm to 11 nm and 84 g of 2-propanol were charged to a device including a stirrer, a reflux condenser, and Nitrogen gas is introduced into the container of the tube. Concentrated nitric acid was added to adjust the acidity (pH) of the resulting liquid to be in the range of 2-4. Next, the temperature of the mixture was raised to 70° C., and then, using a dropping funnel, 10 g of a silsesquioxane compound having a reactive methoxysilyl group at a molecular terminal (commercial Name: X-40-9225, manufactured by Shin-Etsu Chemical Co., Ltd., methoxyl content: 24%), the liquid prepared was added dropwise to the mixture over 0.5 hours to carry out the silsesquioxane compound and colloidal Reactions on the surface of silica particles.

[0214]Next, a liquid prepared by dissolving 90 g of a polysilo...

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Abstract

Provided are: a flame-retardant sheet having extremely high flame retardance; and a flame-retardant composite member using said flame-retardant sheet and exhibiting extremely high flame retardance even when having a flammable base material. This flame-retardant sheet has: a coating formed from a silicone resin composition (C) including at least an inorganic oxide particle-containing condensation-reactive silicone resin; and a glue layer or an adhesive layer. This flame-retardant composite member has this flame-retardant sheet on at least one surface side of a base material, and has the glue layer or adhesive layer between the base material and the coating.

Description

technical field [0001] The present invention relates to a flame-retardant sheet, and more particularly to a flame-retardant sheet including a coating film formed of a specific silicone resin composition and an adhesive layer or a pressure-sensitive adhesive layer. The present invention also relates to a lighting device using the flame-retardant sheet. The present invention also relates to a flame-retardant composite part, more particularly to comprising said flame-retardant sheet on at least one surface side of a substrate and having an adhesive layer or a pressure-sensitive adhesive layer between the substrate and the coating film flame retardant composite parts. The invention also relates to a lighting device using the flame-retardant composite part. Background technique [0002] Hitherto, halogen-based flame retardants have been widely used as flame retardants for flame-retardant coating compositions (for example, see Patent Document 1). However, in terms of environmen...

Claims

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Application Information

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IPC IPC(8): B32B27/00B32B27/20B61D29/00C08K3/00C08L83/04C09D5/18C09D183/06C09J7/02F21V3/04C09J7/25
CPCB32B27/20C09D5/18C09D183/06F21V3/00F21V3/04C09J2483/006C08G77/14C08L83/06C08K3/22B32B7/12B32B27/283B32B2264/10B32B2264/102B32B2307/3065B32B2457/00C08K3/016C09J7/25F21V3/06C09D7/62C09J2301/41
Inventor 杉野裕介长崎国夫樋田贵文仲山雄介
Owner NITTO DENKO CORP
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