Toyobo Co., Ltd.

Toyobo Mc Corporation

Eri Morio

Takuya Akaishi

Yuki Maeda

Kenzo Oya

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. A foam molded product including a continuous phase formed of a resin component containing a thermoplastic polyester elastomer, 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 foam molded product is constituted from, as a surface layer ranging from a surface of the foam molded product to a depth of 1000 μm, a surface layer consisting of only a foamed region in which a non-foamed portion having a cell density of 10% or less is not present, or the foam molded product has, as a surface layer ranging from a surface of the foam molded product to a depth of 1000 μm, a surface layer consisting of both a foamed region in which the non-foamed portion is present and a foamed region in which the non-foamed portion is not present, and wherein the foam molded product has a density of 0.01 to 0.70 g/cm.

Foam molded product and method for producing the same

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.

Foam molded product of thermoplastic polyester elastomer resin and method for producing the same

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&#xb0; 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.

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Shiga, Japan

Eri Morio