Abstract: The present invention aims to provide a thermoplastic polyester resin composition which has characteristic resin viscosity properties necessary for extrusion moldability, has excellent extrusion stability and extrusion moldability, and has flexibility optimal for in-vehicle tubes and hoses. According to the present invention, there is provided a thermoplastic polyester resin composition containing, relative to 100 parts by mass of a polyester resin component containing a polyester elastomer (a), 0.2 to 1.0 part by mass of a compound (b) having two epoxy groups, wherein the thermoplastic polyester resin composition has a z-average molecular weight Mz of 250000 or more and a Shore D hardness of 60 to 85.

Abstract: The present invention is to provide a thermoplastic polyester elastomer resin foam molded product which exhibits light weight, excellent rebound resilience and excellent surface smoothness.

Abstract: The present invention aims to provide a thermoplastic polyester elastomer resin composition suitable for foam molded product which exhibits light weight, excellent rebound resilience and excellent surface smoothness. The present invention provides a thermoplastic polyester elastomer resin composition for counter-pressure foam molding, containing a thermoplastic polyester elastomer and a thickener, wherein the thermoplastic polyester elastomer is prepared by bonding a hard segment and a soft segment, wherein the hard segment consists of polyester constituted from aromatic dicarboxylic acid and aliphatic and/or alicyclic diol as constituting components, wherein the soft segment is at least one member selected from a group consisting of aliphatic polyether, aliphatic polyester and aliphatic polycarbonate, wherein the thermoplastic polyester elastomer has a soft segment content of 25 to 90% by mass, and wherein a content of the thickener is 0.05 to 4.

Abstract: According to the present invention, there is provided a foam molded product of thermoplastic polyester elastomer resin which exhibits light weight and excellent rebound resilience. The foam molded product is characterized in that, the foam molded product has a foamed layer consisting of a resin phase and an isolated foamed cell.

Abstract: A polyester elastomer resin composition that provides improved mold fouling in a continuous use for a long-term, and prevents the lowering in physical properties of polyester elatomer which causes by contacting with grease in environments exceeding 140° C. The polyester elastomer resin composition contains a thermoplastic polyester elastomer (A) prepared by bonding a hard segment and a soft segment an alicyclic polycarbodiimide compound and/or an aliphatic polycarbodiimide compound (B); and a polyamide resin (C) having an amine value of 50 to 2000 eq/tin such a ratio that (B) is in 0.1 to 5 part(s) by mass and (C) is in 0.1 to 10 part(s) by mass to 100 parts by mass of (A). The polyester elastomer resin composition has an acid value which is more than 5 eq/t and not more than 20 eq/t.

Abstract: According to the present invention, there is provided a foam molded product of thermoplastic polyester elastomer resin which exhibits light weight and excellent rebound resilience. The foam molded product is characterized in that, the foam molded product has a foamed layer consisting of a resin phase and an isolated foamed cell.

Abstract: The present invention aims to improve mold fouling in a continuous use for a long-term, and to prevent lowering in physical properties of polyester elatomer which causes by contacting with grease in environments exceeding 140° C. A polyester elastomer resin composition which contains; a thermoplastic polyester elastomer (A) prepared by bonding a hard segment and a soft segment, wherein the hard segment comprises a polyester constituted from an aromatic dicarboxylic acid and an aliphatic and/or alicyclic diol(s) as constituting ingredients, and wherein the soft segment is at least one member selected from a group consisting of an aliphatic polyether, an aliphatic polyester and an aliphatic polycarbonate; an alicyclic polycarbodiimide compound and/or an aliphatic polycarbodiimide compound (B); and a polyamide resin (C) having an amine value of 50 to 2000 eq/t in such a ratio that (B) is in 0.1 to 5 part(s) by mass and (C) is in 0.