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Polybutylene terephthalate resion composition and thin film product

A technology of polybutylene terephthalate and resin composition, which is applied in the field of polybutylene terephthalate resin composition and thin-walled molded products, can solve the problems that there is no record of fluidity of resin composition, etc. Achieve excellent fluidity, mechanical strength and toughness

Inactive Publication Date: 2009-05-20
WIN TECH POLYMER LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This document describes that the aforementioned resin composition is excellent in molding processability, especially pellet capturing property at the time of injection molding, and has excellent moldability, but there is no description on the fluidity of the resin composition.

Method used

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  • Polybutylene terephthalate resion composition and thin film product
  • Polybutylene terephthalate resion composition and thin film product

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1～10、 comparative example 1～6

[0057] Each resin composition was dry-blended at the mixing ratios shown in Tables 1 and 2, melt-kneaded at 250°C using a twin-screw extruder (manufactured by Nippon Steel Corporation) with a screw of 30 mmΦ, and pelletized. chemically, test pieces were produced, and various evaluations were performed. The results are shown in Tables 1 and 2.

[0058] In addition, the specific content of the components used, and the measuring method of physical-property evaluation are as follows.

[0059] (A) Polybutylene terephthalate resin

[0060] (A-1) Polybutylene terephthalate (intrinsic viscosity IV=0.69 dL / g, manufactured by WinTech Polymer Ltd.).

[0061] (A-2) Polybutylene terephthalate (intrinsic viscosity IV=0.875 dL / g, manufactured by WinTech Polymer Ltd.).

[0062] (A-3) Polyester elastomer ("Neubelane P4110AN" manufactured by Teijin Chemicals Co., Ltd.).

[0063] (B) Talc

[0064] Talc ("MICRON WHITE 5000A" manufactured by Hayashi Kasei Co., Ltd., average particle diamet...

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Abstract

The invention provides polybutylene terephthalate resin composition with excellent mechanical property for keeping toughness and improving liquidity (melt fluidity) simultaneously and a thin-wall molding. In detail, relative to 100 weight parts (A) of the polybutylene terephthalate resin, 0.05-5 weight parts of the glycerin fatty acid ester with an coordination of (B) 0.01-5 weight parts of talcum is formed by (C) glycerin and / or dehydrate condensation compound and fatty acid with over 12 carbon atoms, wherein, the glycerin fatty acid ester has a hydroxyl group value of over 200 measured by the method recorded in the paper.

Description

technical field [0001] The present invention relates to a polybutylene terephthalate resin composition and a thin-walled molded article having excellent fluidity. More specifically, it relates to switches, capacitors, connectors, integrated circuits (ICs), relays, resistors, light emitting diodes (LEDs), bobbin coils (Bobbin Coils) and related machines having excellent fluidity Polybutylene terephthalate resin composition and thin-wall molded products of injection molded products such as electric / electronic parts such as casings and housings. Background technique [0002] Polybutylene terephthalate resins are widely used as engineering plastics in automotive parts, electrical / electronic components and other uses. It is known that polybutylene terephthalate resin is used alone in various molded articles, but it is necessary to improve its properties, such as mechanical properties, especially rigidity (flexural modulus), and to add talc depending on the application field. ...

Claims

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Application Information

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IPC IPC(8): C08L67/02C08K3/34C08K5/103B29C45/76
Inventor 山田真也
Owner WIN TECH POLYMER LTD
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