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Flame retardant, flame-retardant resin composition and method for producing flame retardant

A technology of resin composition and flame retardant resin, applied in the field of flame retardants, can solve the problems of discolored appearance of resin composition, decreased mechanical strength of resin, brittle resin, etc., and achieves the effect of not producing appearance defects

Active Publication Date: 2010-10-13
SONY CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] Specifically, Japanese Patent Laid-Open No. 2002-2941 proposes a flame retardant for resins containing amide groups or carboxyl groups that easily absorb moisture so that, when a resin composition containing the flame retardant is stored for a long time Such a problem that the resin composition becomes discolored and the appearance is damaged, or the resin itself becomes brittle, that is, the mechanical strength of the resin decreases

Method used

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  • Flame retardant, flame-retardant resin composition and method for producing flame retardant
  • Flame retardant, flame-retardant resin composition and method for producing flame retardant
  • Flame retardant, flame-retardant resin composition and method for producing flame retardant

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0105] In Example 1, 99.8 parts by weight of polycarbonate resin (bisphenol A) hereinafter referred to as PC as the resin to be flame-retardant, 0.1 part by weight of the sample 2 of the present invention as a flame retardant, and 0.1 parts by weight of the following Polytetrafluoroethylene having fibril-forming properties, referred to herein as PTFE, was mixed together as an anti-dripping agent to prepare a flame retardant resin precursor. This flame retardant resin precursor is supplied to an injection molding machine, kneaded and pelletized at a predetermined temperature. The pellets thus prepared are charged into an extruder and injection molded at a predetermined temperature. Thus, a 1.5 mm-thick bar-shaped test piece formed of the flame-retardant resin composition was prepared.

Embodiment 2

[0107] In Example 2, a bar-shaped test piece was prepared in the same manner as in Example 1 above, except that 84.3 parts by weight of PC and 15 parts by weight of an acrylonitrile-butadiene-styrene copolymer hereinafter referred to as ABS resin Resin (acrylonitrile / butadiene / styrene weight ratio = 24 / 20 / 56) as the resin to be flame-retardant, 0.1 part by weight of the present invention sample 1 as a flame retardant, 0.5 part by weight of a polymer hereinafter referred to as SI Methylphenylsiloxane was mixed as a silicon-based flame retardant (used as another flame retardant), and 0.1 parts by weight of PTFE as an anti-dripping agent to prepare a flame retardant resin precursor.

Embodiment 3

[0109] In Example 3, strip test pieces were prepared in the same manner as in Example 1 above, except that 89.2 parts by weight of PC and 10 parts by weight of rubber-modified polystyrene (polybutadiene, hereinafter referred to as HIPS resin) / polystyrene weight ratio=10 / 90), 0.5 parts by weight of the sample 3 of the present invention as a flame retardant, and 0.3 parts by weight of PTFE as an anti-dripping agent were mixed to prepare a flame retardant resin precursor.

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Abstract

Flame-retarded resin compositions prepared by incorporating a resin to be flame-retarded with an acrylonitrile / styrene polymer having sulfonic acid groups and / or sulfonate salt groups which are introduced thereinto by sulfonation with a sulfonating agent having a water content of less than 3 wt%.

Description

technical field [0001] The present invention relates to a flame retardant for imparting flame retardant properties to a resin composition, a flame retardant resin composition comprising the flame retardant, and a method for producing the flame retardant. [0002] The present invention contains subject matter related to Japanese Patent Applications JP2004-085477, JP2004-085479 and JP2004-085480 (all filed on Mar. 23, 2004), the entire contents of which are hereby incorporated by reference. Background technique [0003] Flame retardants for resins used in these years to impart flame-retardant properties to resin compositions can be exemplified by metal hydroxide-based (such as magnesium hydroxide or aluminum hydroxide) flame retardants, silicon-based (such as silicone or silica) Flame retardants, halogen-based (bromine) flame retardants and phosphorus-based (such as phosphate or red phosphorus) flame retardants. [0004] A disadvantage of metal hydroxide-based flame retardant...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L25/12C08L27/12C08L33/20C08L101/00C09K21/14
Inventor 稻垣靖史
Owner SONY CORP
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