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Non-halogen fire-retarding resin composition

A technology of flame retardant resin and composition, which is applied in the field of non-halogen flame retardant resin composition, can solve the problems of insufficient and low flame retardancy, and achieve the effect of good environmental safety and high flame retardancy

Active Publication Date: 2008-05-28
SHIN ETSU CHEM IND CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, when only the surface-treated metal hydroxide is mixed with the thermoplastic resin, the flame retardancy (LOI) is still low and insufficient, and a large amount of metal hydroxide needs to be mixed.
[0007] Patent Document 5 relates to a metal hydroxide having a hexagonal plate shape and a specific aspect ratio and its production method. However, it can be clearly seen from Table 1 of the comparative example of this patent that only thermoplastic resin and metal In the hydroxide system, no relationship was found between the difference in aspect ratio and the flame retardancy

Method used

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Embodiment

[0062] Hereinafter, the present invention will be specifically described based on examples and comparative examples, but the present invention is not limited to the following examples unless the gist thereof is deviated from. In addition, the number of the raw material column of Table 1 shows a mass part.

[0063] Examples and Comparative Examples

[0064]

[0065] For each raw material shown in Table 1, the aspect ratio (average major diameter / average thickness) and specific surface area (m 2 / g) and average particle size (μm).

[0066] Evaluation method

[0067] (a) Average long diameter and average thickness: After photographing the classified powders with an electron microscope, measure the long diameters and thicknesses of 20 powders from the photos, and calculate the average long diameter and average thickness.

[0068] (b) Specific surface area and average particle size: Add 0.3 parts by mass of nonionic surfactant and 20 parts by mass of water to 0.1 part by mass ...

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Abstract

To provide a non-halogen flame-retardant resin composition which does not emit halogen gases at the time of combustion, shows sufficiently high flame retardancy by a smaller amount of a metal hydroxide than before and is excellent in environmental safety. This non-halogen flame-retardant resin composition is obtained by blending (A) 100 pts. wt. of a thermoplastic resin, (B) 200-300 pts. wt. of an inorganic powder having an aspect ratio (average major axis / average thickness) of 8-30, and (C) 1-30 pts. wt. of an organo polysiloxane.

Description

technical field [0001] The present invention relates to a non-halogen flame retardant resin composition that does not generate halogen gas during combustion, exhibits sufficiently high flame retardancy by using a smaller amount of metal hydroxide than before, and is environmentally safe. Background technique [0002] Since thermoplastic resins are flammable, various technologies for imparting flame retardancy have been proposed for applications requiring flame retardancy. In the past, a flame retardant formulation in which a halogen flame retardant such as a bromine compound with good flame retardancy and antimony oxide was mixed with the resin was often used. Halogen-based flame retardants exert an excellent flame-retardant effect by capturing free radicals or generating incombustible gases. However, since halogen-based flame retardants generate a large amount of toxic gas in case of fire, the advent of non-halogen-formulated flame-retardant resin compositions has been str...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L23/00C08K9/06C09K21/02C08K3/00C08L101/00C09K21/14
Inventor 井原俊明
Owner SHIN ETSU CHEM IND CO LTD
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