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Flame-retardant and electromagnetic interference attenuating thermoplastic resin compsn

A thermoplastic resin and composition technology, applied in the field of flame retardant and electromagnetic wave shielding thermoplastic resin composition, can solve the problem of inability to obtain flame retardancy and the like

Inactive Publication Date: 2004-03-10
NIPPON A & L INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, thermoplastic resins satisfying all the flame retardancy, electromagnetic wave shielding stability and good molded appearance have not yet been obtained

Method used

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  • Flame-retardant and electromagnetic interference attenuating thermoplastic resin compsn

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Experimental program
Comparison scheme
Effect test

Embodiment 1-5 and comparative Embodiment 1-7

[0061] The above components (A) to (E) were mixed in respective ratios shown in Table 1, and the mixture was melted and kneaded with a twin-screw extruder to obtain pellets. The obtained pellets were molded into each test piece with an injection molding machine, and then each evaluation was performed. The results are given in Table 1.

[0062] Example

[0063] As mentioned above, the flame retardant and electromagnetic wave shielding thermoplastic resin composition of the present invention has excellent flame retardancy, good appearance, and excellent molding fluidity, so it can be suitable for fields requiring flame retardancy and electromagnetic wave shielding performance, Used in such as household appliances, OA equipment and electric or electronic equipment.

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Abstract

A flame-retardant and electromagnetic interference attenuating thermoplastic resin composition excellent in flame retardance, surface appearance and processability in molding, which comprises 100 parts by weight of a thermoplastic resin (A), 0.5 to 30 parts by weight of a halogen-free phosphate flame retardant (B) represented by the general formula (1), 5 to 35 parts by weight of a metal-coated fiber (C), and 3 to 30 parts by weight of a flaky or needle-like filler (D):(1) wherein R1, R2, R3 and R4 are each independently hydrogen or a monovalent organic group, with the proviso that at least one of R1, R2, R3 and R4 is a monovalent organic group; X is a divalent organic group; k, l, m and n are each independently 0 or 1; and N is an integer of 0 to 10.

Description

technical field [0001] The present invention relates to a flame retardant and electromagnetic wave shielding thermoplastic resin composition excellent in flame retardancy and molding fluidity. Background technique [0002] Styrenic resins produced and commercially available under the names of HIPS, ABS, etc. are excellent in appearance, mechanical properties, and molding fluidity, and thus are used in various fields such as vehicle components, electric appliances, household objects, and the like. [0003] However, since these styrenic resins are thermoplastic materials, they are used in electrical and electronic applications requiring flame retardancy such as automatic fire extinguishing performance (V-0, V-1 and V-2 categories) according to U.S. Underwriters Laboratory (UL) Standard 94. Applications in electronic devices are limited. [0004] Flame retardancy is provided by the use of halides such as tetrabromobisphenol A (TBBA) and decabromodiphenyl ether (BIDE), combinat...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08K5/00C08K5/521C08K7/00C08K7/02C08K7/08C08K9/02C08L27/18
CPCC08K5/521C08K9/02C08L27/18C08K7/00
Inventor 田伏浩一森文三
Owner NIPPON A & L INC
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