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Flame-retardant resin composition and use thereof

A resin composition and flame retardant technology, applied in the field of flame retardant resin composition, can solve the problems of reduced impact resistance of molded products, harmful to human body, easy to crack, etc., and achieve excellent molding processability and excellent mold adhesion Effect

Active Publication Date: 2015-09-30
SUMITOMO BAKELITE CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] However, in order to improve the flame retardancy of polycarbonate resin, it is necessary to mix a large amount of oligomers or polymers of carbonate derivatives of brominated bisphenol A, and there is a problem that the impact resistance of molded products is lowered and cracks are likely to occur
In addition, since a large amount of halogen-based compounds containing bromine are compounded, there are many problems such as generation of halogen-containing gases during combustion and generation of halogenated gases harmful to the human body.

Method used

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  • Flame-retardant resin composition and use thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0081] According to the composition shown in Table 1, pellets were produced by melt-kneading using a twin-screw extruder. The prepared granules are extruded into sheets by using a co-rotating twin-screw extruder, a T-die (dies), etc., and adjusted to a predetermined thickness. The obtained flame-retardant insulating sheet was evaluated by the following method. The evaluation results are shown in Table 1.

[0082] ·Evaluation of Flame Retardancy

[0083] A test piece based on UL94 (V-0) was prepared from an extruded sheet having a predetermined thickness of 0.40 mm, and a vertical burning test was performed.

[0084] ·Heat resistance evaluation

[0085] Heat resistance was evaluated based on ASTM D 648 (load: 1.8 MPa).

[0086] ·Evaluation of tensile properties

[0087] The tensile strength (MPa) was evaluated based on the specification of ASTM D 638 from the extruded sheet with a predetermined thickness of 0.40 mm.

[0088] ·Evaluation of formability

[0089] Molding pr...

Embodiment 2～5、 comparative example 1～8

[0093] Except having used the material and addition amount described in Table 1, it carried out similarly to Example 1, and produced the flame-retardant insulating sheet. The evaluation results are shown in Table 1.

[0094] It should be noted that when using melamine cyanurate and a resin that does not contain a polycarbonate resin, the desired effect of the present invention cannot be obtained.

[0095] [Table 1]

[0096]

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Abstract

A flame-retardant resin composition which comprises a resin comprising a polycarbonate resin and a flame retardant agent. The flame retardant agent comprises a nitrogenated compound.

Description

technical field [0001] The present invention relates to a flame-retardant resin composition containing resin such as polycarbonate resin and its use. Background technique [0002] Conventionally, a flame retardant is blended into a thermoplastic resin to impart flame retardancy to a resin molded article. For example, in order to improve the flame retardancy of polycarbonate resins, a method of blending a large amount of oligomers or polymers of carbonate derivatives of brominated bisphenol A is used. [0003] However, in order to improve the flame retardancy of polycarbonate resins, it is necessary to mix a large amount of oligomers or polymers of carbonate derivatives of brominated bisphenol A, and there is a problem that the impact resistance of molded products decreases and cracks tend to occur. In addition, since a large amount of halogen-based compounds containing bromine is blended, there are many problems such as generation of halogen-containing gas during combustion...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L69/00C08K5/3492
CPCC08K5/3492
Inventor 兼原克树
Owner SUMITOMO BAKELITE CO LTD