公开(公告)号：US11111351B2

公开(公告)日：2021-09-07

申请号：US16491456

申请日：2018-03-01

Applicant: JSP Corporation

Inventor： Nobumasa Koshita ,  Masaharu Oikawa ,  Tatsuya Hayashi

IPC: C08J9/232 ,  B29C44/44 ,  B29C44/54 ,  B29C44/02 ,  C08J9/18 ,  B29K75/00

Abstract: The present invention relates to an expanded beads molded article, which is obtained through in-mold molding of expanded thermoplastic elastomer beads, has voids, and has a density of 150 to 300 kg/m3 and a voidage of 10 to 70% by volume.

公开(公告)号：US20210253818A1

公开(公告)日：2021-08-19

申请号：US17168762

申请日：2021-02-05

Applicant: JSP CORPORATION

Inventor： Tatsuya HAYASHI

IPC: C08J9/18 ,  C08J9/228

Abstract: The polyamide-based resin expanded beads are expanded beads including a polyamide-based resin as a base resin, in which the average value of bead weight of the expanded beads is 0.5 mg or more and 8 mg or less, the coefficient of variation of the bead weight of the expanded beads is 10% or less, and the average value of the ratio of a long diameter to a short diameter (a long diameter/a short diameter) of the expanded beads measured with a projection image photographing type bead size distribution analyzer is 1 or more and 1.5 or less, the coefficient of variation of the ratio (a long diameter/a short diameter) is 12% or less, the average value of the a short diameter is 1 mm or more and 4 mm or less, and the coefficient of variation of the a short diameter is 10% or less.

公开(公告)号：US10667614B2

公开(公告)日：2020-06-02

申请号：US16089624

申请日：2017-02-17

Applicant: JSP CORPORATION

Inventor： Seishiro Murata ,  Hiroyuki Ito

IPC: A47C7/20 ,  A47C27/16 ,  A47C27/14 ,  B29C44/12 ,  B29C44/44 ,  B60N2/70 ,  B32B3/08 ,  B29L12/00

Abstract: A long synthetic resin foam body composed of a thermoplastic resin expanded beads-molded substrate and a frame having displacement regulating sections provided at both ends in the longitudinal or lateral direction of the substrate and a connecting section that connects the displacement regulating sections to each other. The substrate has at least one joint forming portion that divides the substrate in a direction intersecting the connecting section into two or more substrate parts. The joint forming portion has a joint that connects the adjacent two substrate parts to each other and is deformable to permit a relative displacement between the adjacent two substrate parts when the substrate contracts or expands.

公开(公告)号：US10569512B2

公开(公告)日：2020-02-25

申请号：US16140637

申请日：2018-09-25

Applicant: JSP CORPORATION

Inventor： Takeshi Aoki ,  Takashi Nishimoto ,  Mikidai Fujita ,  Ryohei Takeuchi

IPC: B32B27/06 ,  B32B27/32 ,  B65D65/40 ,  B65D85/48 ,  B65D57/00 ,  C08L23/04 ,  B32B27/18 ,  B32B27/30 ,  B32B5/20 ,  B32B25/14 ,  C08L23/02 ,  B32B5/18 ,  B65D81/107 ,  C08J9/14

Abstract: A multi-layer foam sheet with an apparent density of 30 to 300 kg/m3 and a thickness of 0.05 to 2 mm, including a foam layer containing a polyethylene-based resin, and an antistatic layer fusion-laminated by coextrusion on each of both sides of the foam layer. The antistatic layer has a basis weight of 1 to 10 g/m2 and contains a polyethylene-based resin, a polystyrene-based resin, a styrenic elastomer, and a polymeric antistatic agent, with the polystyrene-based resin being contained in the antistatic layer in an amount of 15 to 70% by weight.

公开(公告)号：US20200032025A1

公开(公告)日：2020-01-30

申请号：US16491456

申请日：2018-03-01

Applicant: JSP Corporation

Inventor： Nobumasa KOSHITA ,  Masaharu OIKAWA ,  Tatsuya HAYASHI

IPC: C08J9/232 ,  C08J9/18 ,  B29C44/44 ,  B29C44/02

Abstract: The present invention relates to an expanded beads molded article, which is obtained through in-mold molding of expanded thermoplastic elastomer beads, has voids, and has a density of 150 to 300 kg/m3 and a voidage of 10 to 70% by volume.

公开(公告)号：US10435530B2

公开(公告)日：2019-10-08

申请号：US15572873

申请日：2016-03-28

Applicant: JSP Corporation

Inventor： Shota Takagi ,  Masaharu Oikawa

IPC: C08F297/08 ,  C08J9/18 ,  C08J9/224 ,  C08J9/228 ,  C08J9/12 ,  C08J9/232 ,  C08F210/16 ,  C08L53/00

Abstract: An object of the present invention is to provide expanded beads capable of producing an expanded beads molded article that is excellent in in-mold moldability and is excellent with good balance in lightweight property, flexibility, repulsion, restorability, and tensile characteristics, and an expanded beads molded article using the expanded beads. The expanded beads molded article of the present invention is produced by subjecting the crosslinked expanded beads of the present invention, to in-mold molding. The expanded beads molded article of the present invention may have an apparent density of from 40 to 150 g/L.

公开(公告)号：US20190263994A1

公开(公告)日：2019-08-29

申请号：US16348410

申请日：2017-11-08

Applicant: JSP Corporation

Inventor： Shota TAKAGI ,  Masaharu OIKAWA

IPC: C08J9/22 ,  C08J9/18 ,  A43B13/04 ,  B29C44/34

Abstract: The present invention relates to an expanded beads molded article containing a block copolymer of a polyethylene block and an ethylene-α-olefin copolymer block and having a density of 30 kg/m3 or more and less than 150 kg/m3 and a modulus of repulsion elasticity of 60% or more. The sole member of the present invention includes the expanded beads molded article of the present invention.

公开(公告)号：US20190256680A1

公开(公告)日：2019-08-22

申请号：US16348108

申请日：2017-11-07

Applicant: JSP Corporation

Inventor： Shota TAKAGI ,  Masaharu OIKAWA

IPC: C08J9/228 ,  C08J9/18 ,  C08K5/3417 ,  C08K3/04

Abstract: The present invention is concerned with expanded beads that are olefin-based thermoplastic elastomer expanded beads containing a coloring agent, wherein an apparent density of the expanded beads is 40 to 300 g/L, and an average surface layer membrane thickness (a) is 3 to 25 μm, and a molded article thereof, and is able to provide expanded beads capable of producing an expanded beads molded article which is excellent in in-mold moldability and excellent in tensile characteristics and an expanded beads molded article using the expanded beads.

公开(公告)号：US10377873B2

公开(公告)日：2019-08-13

申请号：US15554842

申请日：2016-03-01

Applicant: JSP CORPORATION

Inventor： Yohta Kuwada ,  Mitsushi Murata

IPC: C08J9/20 ,  C08J9/14 ,  C08J9/232 ,  C08J9/16 ,  B29C44/34 ,  B29K33/00 ,  B29K105/00 ,  B29K105/04

Abstract: Provided are an expanded acrylic resin beads molded article that produces little soot during burning, and has good castabilities and high strength, and an expandable acrylic resin bead and an expanded acrylic resin bead for producing the expanded acrylic resin beads molded article. The expandable acrylic resin bead includes a physical blowing agent and a copolymer. The copolymer is composed of a methyl methacrylate component, an acrylic acid ester component, and a styrene component in a predetermined proportion. The copolymer constitutes a base resin of the expandable acrylic resin beads. The water content of the expandable acrylic resin bead is a 0.5 mass % or less. The expanded acrylic resin bead includes the copolymer and has a bulk density and cell diameters within predetermined ranges, and the expanded acrylic resin beads molded article is produced by in-mold molding of plural expanded beads.

公开(公告)号：US10369766B2

公开(公告)日：2019-08-06

申请号：US15318608

申请日：2015-07-15

Applicant: JSP Corporation

Inventor： Hidehiro Sasaki

IPC: B32B5/18 ,  B32B7/12 ,  B32B27/06 ,  C08J9/00 ,  C08J9/236 ,  C08J9/35 ,  B32B9/04 ,  B32B5/16 ,  B32B9/00 ,  B32B15/04 ,  B32B15/16 ,  B32B15/18 ,  B32B15/20 ,  B32B17/00 ,  B32B21/04 ,  B32B21/12 ,  B32B27/14 ,  B32B27/36

Abstract: The present invention provides a composite molded article in which aliphatic polyester-based resin expanded beads and a thermosetting resin cured product containing a reinforcing fiber, which is formed between the expanded beads, are integrally fixed, wherein the aliphatic polyester-based resin is a polylactic acid-based resin, and a flexural modulus E (MPa) of the composite molded article and a density ρ (kg/m3) of the composite molded article satisfy Expression (1): E1/3/ρ≥0.02 [(MPa)1/3(kg/m3)−1], and a composite molded article and a laminate having more improved strength.