公开(公告)号：US20190300699A1

公开(公告)日：2019-10-03

申请号：US16468404

申请日：2018-02-26

Applicant: TOYOBO CO., LTD.

Inventor： Takuya AKAISHI ,  Yuki MAEDA ,  Eri MORIO

IPC: C08L67/02 ,  C08L77/00 ,  C08K5/29 ,  C08K5/00 ,  C08K5/49 ,  C08K5/13 ,  C08K5/21

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 0.1 to 10 part (s) by mass to 100 parts by mass of (A), characterized in that the polyester elastomer resin composition has an acid value which is more than 5 eq/t and not more than 20 eq/t.

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.