Abstract: The present invention provides a polyarylene sulfide resin composition which shows high dielectric constant and low dielectric dissipation factor, has excellent moldability, and has improved corrosive property to metal parts. More specifically, to 100 parts by weight of (A) polyarylene sulfide resin, compounded are 10 to 400 parts by weight of (B) an alkaline earth metal titanate showing 50 or higher relative dielectric constant and 0.05 or lower dielectric dissipation factor at 1 MHz, and containing less than 500 ppm of metal ion which is extracted by hot water; and 0.01 to 15 parts by weight of (C) one or more compound selected from hydroxides and oxides of alkaline earth metals.

Abstract: The present invention provides a polyarylene sulfide resin composition which shows high dielectric constant and low dielectric dissipation factor, has excellent moldability, and has improved corrosive property to metal parts. More specifically, to 100 parts by weight of (A) polyarylene sulfide resin, compounded are 10 to 400 parts by weight of (B) an alkaline earth metal titanate showing 50 or higher relative dielectric constant and 0.05 or lower dielectric dissipation factor at 1 MHz, and containing less than 500 ppm of metal ion which is extracted by hot water; and 0.01 to 15 parts by weight of (C) one or more compound selected from hydroxides and oxides of alkaline earth metals.

Abstract: It is an object of the present invention to provide a dielectric resin foam which has high and uniform dielectric properties and is preferable for use as various dielectric materials. A dielectric resin foam obtained by expanding a resin composition comprising a synthetic resin and a fibrous and/or plate-like dielectric inorganic filler is provided.

Abstract: It is an object of the present invention to provide a dielectric resin foam which has high and uniform dielectric properties and is preferable for use as various dielectric materials. A dielectric resin foam obtained by expanding a resin composition comprising a synthetic resin and a fibrous and/or plate-like dielectric inorganic filler is provided.

Abstract: A connector with inhibited crosstalk for high speed signal circuits, where the connector contains an insulator formed from a resin composition obtained by incorporating 5 to 85% by weight of a ceramic dielectric powder having a dielectric constant of 30 or more determined at 25° C. and 1 MHz in a matrix resin, and the insulator is substantially homogeneous in the dielectric constant throughout the insulator.

Abstract: A connector characterized by having an insulator formed of a resin composition obtained by incorporating 5 to 85% by weight of a ceramic dielectric powder having a dielectric constant of 30 or more determined at 25° C. and 1 MHz to a matrix resin.

Abstract: An electroconductive fiber comprising a fibrous core material whose surface is coated with an electroconductive substance, the fibrous core material having an average fiber length of 1 to 5 &mgr;m, an average fiber diameter of 0.01 to 0.5 &mgr;m and an aspect ratio of 3 or more, electroconductive resin composition containg the electroconductive fibers, and electroconductive thread prepared by spinning the electroconductive resin composition.