Kabushiki Kaisha Ueno Seiyaku Oyo Kenkyujo

Kabushiki Kaisha Ueno Seiyaku Oyo Kenkyusho

Naoshi Saito

Masaya Kitayama

Kiichi Kometani

The present invention provides a method for joining liquid-crystalline polyester resin composition parts, characterized in that the melting point of the liquid crystalline polyester resin measured by differential scanning calorimeter is 190-250&#xb0; C. and that the parts are jointed by means of welding. By using the method of the present invention, jointed articles with sufficient joint strength are provided with accuracy.

Method for joining liquid-crystalline polyester resin composition parts and jointed article made of liquid-crystalline polyester resin composition

A liquid crystal polyester resin composition which suppresses the formation of a blister caused by a heat treatment at a high temperature and has excellent moldability. This composition comprises (A) a liquid crystal polyester comprising at least two aromatic oxycarbonyl recurring units and (B) a liquid crystal polyester comprising at least two aromatic oxycarbonyl recurring units, at least one aromatic dioxy recurring unit and at least one aromatic dicarbonyl recurring unit. The weight ratio of the liquid crystal polyester (A) to the liquid crystal polyester (B) is 90/10 to 30/70.

Growing community of inventors

Itami, Japan

Naoshi Saito