PROBLEM TO BE SOLVED: To provide a poly(ether imide-siloxane)copolymer resin composition low in an elastic modulus, flexible, expressing a high extensibility, further excellent in thermal aging resistance and continuously usable at high temperature.;SOLUTION: There is provided a poly(ether imide-siloxane)copolymer resin composition, which is obtained by blending (c) a silane coupling agent of 0.1 to 10 pts.wt. having one or more kinds of groups selected from an epoxy group, an amino group and an isocyanate group to 100 pts.wt. of a resin composition made of (a) a poly(ether imido-siloxane)copolymer of 99 to 51 wt.% and (b) a polyphenylene sulfide resin of 1 to 49 wt.%, with the total of (a) and (b) as 100 wt%. Upon observation of the cross-section of a molding made of the resin composition by a transmission electron microscope, (a) the poly(ether imido-siloxane)copolymer forms a continuous phase (sea phase), (b) the polyphenylene sulfide resin forms a dispersion phase (island phase), and, in the dispersion phase (island phase), the area of the dispersion phase in which the ratio obtained by dividing the major axis with the minor axis is 2.8 or higher is 4% or higher of the whole area.;SELECTED DRAWING: None;COPYRIGHT: (C)2017,JPO&INPIT
展开▼
