公开(公告)号：US20230383118A1

公开(公告)日：2023-11-30

申请号：US18032416

申请日：2021-10-15

Applicant: TOYOBO CO., LTD.

Inventor： Kenzo OYA ,  Takuya AKAISHI ,  Eri MORIO

IPC: C08L67/02 ,  C08G63/183 ,  C08G63/66 ,  C08F212/08 ,  C08F220/32 ,  C08J9/00 ,  C08J9/34 ,  B29C44/00

CPC classification number: C08L67/025 ,  C08G63/183 ,  C08G63/66 ,  C08F212/08 ,  C08F220/325 ,  C08J9/0061 ,  C08J9/34 ,  B29C44/00 ,  C08L2207/04 ,  C08L2203/14 ,  C08L2201/08 ,  C08G2110/005 ,  C08G2101/00

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 4.5 parts by mass relative to 100 parts by mass of the thermoplastic polyester elastomer. The present invention also provides a foam molded product that includes a continuous phase formed of the thermoplastic polyester elastomer resin composition.

公开(公告)号：US20230390975A1

公开(公告)日：2023-12-07

申请号：US18032279

申请日：2021-10-15

Applicant: TOYOBO CO., LTD.

Inventor： Kenzo OYA ,  Takuya AKAISHI ,  Eri MORIO

IPC: B29C44/06 ,  B29C44/34

CPC classification number: B29C44/06 ,  B29C44/3403 ,  B29K2067/00

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. 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/cm3.