US 12,390,962 B2
Foam molded product and method for producing the same
Kenzo Oya, Shiga (JP); Takuya Akaishi, Shiga (JP); and Eri Morio, Shiga (JP)
Assigned to TOYOBO MC CORPORATION, Osaka (JP)
Appl. No. 18/032,279
Filed by TOYOBO CO., LTD., Osaka (JP)
PCT Filed Oct. 15, 2021, PCT No. PCT/JP2021/038276
§ 371(c)(1), (2) Date Apr. 17, 2023,
PCT Pub. No. WO2022/085592, PCT Pub. Date Apr. 28, 2022.
Claims priority of application No. 2020-176133 (JP), filed on Oct. 20, 2020; and application No. 2021-074976 (JP), filed on Apr. 27, 2021.
Prior Publication US 2023/0390975 A1, Dec. 7, 2023
This patent is subject to a terminal disclaimer.
Int. Cl. B29C 44/06 (2006.01); B29C 44/34 (2006.01); B29K 67/00 (2006.01); B29K 105/04 (2006.01); B32B 5/22 (2006.01)
CPC B29C 44/06 (2013.01) [B29C 44/3403 (2013.01); B32B 5/22 (2013.01); B29K 2067/00 (2013.01); B29K 2105/04 (2013.01); B29K 2995/0063 (2013.01)] 4 Claims
OG exemplary drawing
 
1. A foam molded product comprising 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 the group consisting of aliphatic polyether, aliphatic polyester and aliphatic polycarbonate,
wherein
(a) the foam molded product is constituted from, a first 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, the first surface layer ranging from a surface of the foam molded product to a depth of 1000 μm, or
(b) the foam molded product has, a second 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, the second surface layer ranging from the surface of the foam molded product to the depth of 1000 μm,
wherein the foam molded product has a density of 0.01 to 0.70 g/cm3, and
wherein the foamed region of the first surface layer in which the non-foamed portion is not present has a flattened cell layer comprising cells having an average aspect ratio of 4.0 to 15.0.