Liquid crystalline polyester resin composition

A polyester resin, liquid crystal technology, used in liquid crystal materials, chemical instruments and methods, etc., can solve the problems of insufficient heat resistance, reflow deformation, etc.

Active Publication Date: 2006-02-01
POLYPLASTICS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, the liquid crystalline polymer composition described in JP-A4-202558 is unsatisfactory because of insufficient heat resistance, deformation due to reflow during mounting, etc.

Method used

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  • Liquid crystalline polyester resin composition
  • Liquid crystalline polyester resin composition
  • Liquid crystalline polyester resin composition

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Embodiment Construction

[0017] Hereinafter, the present invention will be described in detail. The liquid crystalline polyester (A) used in the present invention refers to a melt processable polyester having the property of being able to form an optically anisotropic melt phase. The properties of the anisotropic melt phase can be confirmed by a common polarization inspection method using crossed polarizers. More specifically, confirmation of the anisotropic molten phase was carried out by observing a molten sample placed on a Leitz hot stage at a magnification of 40 times under a nitrogen atmosphere using a Leitz polarizing microscope. The liquid crystalline polymer applicable to the present invention, when examined between crossed polarizers, transmits polarized light normally even when it is in a molten static state, for example, and exhibits optical anisotropy.

[0018] It is not enough for the liquid crystalline polyester used in the present invention to have the above-mentioned property capable...

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Abstract

The object is to provide a liquid crystalline polymer material having good moldability, excellent flatness, warp-deformation resistance, and heat-resistance, and securing performance balance. A specified quantity of mica and a fibrous filler is added to a liquid crystalline polyester resin prepared by combining a 2-hydroxy-6-naphthoic acid unit and a 4-hydroxybenzoic acid unit at a specifically limited ratio.

Description

technical field [0001] In particular, the present invention relates to a liquid crystalline polyester resin composition most suitable for producing a connector. Background technique [0002] Among thermoplastic resins, liquid crystalline polymers are known as materials that are excellent in dimensional accuracy, vibration damping, and fluidity, and rarely generate burrs during molding. Conventionally, liquid crystalline polymers have been frequently used as materials for various electronic components by making full use of such characteristics. [0003] In particular, with the high performance of electronic equipment in recent years, there have been demands for high heat resistance of connectors (improved productivity through assembly technology), high density (multi-core), and miniaturization. Polymer compositions are used extensively in connectors. [0004] However, even liquid crystalline polymer compositions with good fluidity to a certain extent cannot sufficiently sat...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09K19/38
CPCC08K3/34C08K7/14C09K19/3809C08L67/00
Inventor 渡边一史深津博树朝比奈靖之
Owner POLYPLASTICS CO LTD
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