公开(公告)号：US20230151177A1

公开(公告)日：2023-05-18

申请号：US17906033

申请日：2021-03-11

Applicant: JSP CORPORATION

Inventor： Naoki MOCHIDA

IPC: C08J9/18 ,  C08J3/00 ,  C08J3/24 ,  C08J9/00

CPC classification number: C08J9/18 ,  C08J3/005 ,  C08J3/242 ,  C08J9/0019 ,  C08J2201/026 ,  C08J2203/06 ,  C08J2353/00

Abstract: A crosslinked olefin-based thermoplastic elastomer expanded bead including a base polymer having an olefin-based thermoplastic elastomer and a brominated bisphenol-based flame retardant having a chemical structure represented by formula (1). A difference TmTPO-TFR is −5° C. to 40° C., where TmTPO is a melting point of the olefin-based thermoplastic elastomer and TFR is the lower of a glass transition temperature TgFR and a melting point TmFR of the brominated bisphenol-based flame retardant. A xylene insoluble content is 5 mass % to 80 mass %. R1 and R3 in the formula (1) are monovalent substituents, R2 is a divalent substituent, and n is an integer from 1 to 6:

公开(公告)号：US20230083244A1

公开(公告)日：2023-03-16

申请号：US17797648

申请日：2021-02-02

Applicant: JSP Corporation

Inventor： Hidehiro SASAKI ,  Toshio MORITA

IPC: C08L79/08 ,  C08L79/04 ,  C08L63/00 ,  C08L67/03

Abstract: A composite molded article in which thermoplastic resin expanded beads are bonded via a thermosetting resin binder, wherein the composite molded article has a density of 0.05 to 0.5 g/cm3, and when heated at 100° C. for 20 minutes, the composite molded article has a volume expansion rate of 15 to 200%.

公开(公告)号：US20230074915A1

公开(公告)日：2023-03-09

申请号：US17790997

申请日：2021-01-21

Applicant: JSP CORPORATION

Inventor： Tomohito SHIMADA ,  Hajime OHTA

IPC: C08J9/16 ,  C08J9/228 ,  C08J9/224 ,  B32B5/18 ,  B32B1/00 ,  B32B27/06 ,  B32B27/32

Abstract: An expanded bead having a through hole and including a foamed core layer which defines the through hole therein and which is constituted of a resin composition containing two kinds of polypropylene-based resins having different melting points, and a cover layer covering the foamed core layer and constituted of a polyolefin-based resin. The expanded bead gives a DSC curve in which an endothermic peak intrinsic to the resin composition and another endothermic peak on a higher temperature side thereof appear in a specific heat of fusion ratio. Molded articles include a multiplicity of the expanded beads.

公开(公告)号：US11597127B2

公开(公告)日：2023-03-07

申请号：US16348355

申请日：2017-11-08

Applicant: JSP Corporation

Inventor： Shota Takagi ,  Masaharu Oikawa

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

Abstract: 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 150 kg/m3 or more and 500 kg/m3 or less and a tensile strength of 0.5 MPa or more.

公开(公告)号：US20220306827A1

公开(公告)日：2022-09-29

申请号：US17617521

申请日：2020-04-02

Applicant: JSP CORPORATION

Inventor： Nobumasa KOSHITA ,  Hajime OHTA ,  Shota TAKAGI

IPC: C08J9/18 ,  C08J9/224 ,  C08J9/232

Abstract: A modified expanded bead that includes an expanded bead which includes a specific base polymer (β) and a coating layer which includes a specific base polymer (α). The coating layer covers at least part of an outer surface of the expanded bead. The melting point Tα of the base polymer (α) and the melting point Tβ of the base polymer (β) satisfy a relationship of 0≤Tα−Tβ≤20. When the modified expanded bead is cut into two halves along a cutting plane to form two half portions and thereafter one of the two half portions is cut along planes perpendicular to the cutting plane to form ten small pieces, outermost pieces among the ten small pieces have a xylene-insoluble content (B) which is less than a xylene-insoluble content (A) in the half portion and the xylene-insoluble content (A) is 10-80% by mass.

公开(公告)号：US20220192110A1

公开(公告)日：2022-06-23

申请号：US17600918

申请日：2020-03-31

Applicant: JSP CORPORATION

Inventor： Hidehiro SASAKI ,  Joji OHNUKI

IPC: A01G24/50 ,  A01G24/35

Abstract: The medium for plant cultivation according to the present invention includes a bag body, and a crushed material obtained by crushing a foam body made of an aliphatic polyester-based resin and packed in the bag body in a compressed state, and in the medium a ratio of the bulk density of the crushed material after being packed in the bag body to the bulk density of the crushed material before being packed in the bag body is larger than 1 and 2 or less.

公开(公告)号：US11305519B2

公开(公告)日：2022-04-19

申请号：US16887465

申请日：2020-05-29

Applicant: JSP CORPORATION

Inventor： Takashi Nishimoto ,  Ryohei Takeuchi

IPC: B32B27/06 ,  B32B27/32 ,  C08J9/12

Abstract: A laminated foam sheet obtained by a coextrusion lamination method and having a polyethylene foam layer, and an antistatic layer laminated on at least one side of the foam layer. The antistatic layer contains a polyethylene resin, an ionomer resin and a polyalkylene glycol and has such specific morphology that the polyethylene resin forms a continuous phase and the ionomer resin forms small dispersed phases dispersed in the continuous phase.

公开(公告)号：US11224292B2

公开(公告)日：2022-01-18

申请号：US16474225

申请日：2017-12-27

Applicant: JSP CORPORATION

Inventor： Keiichi Hashimoto ,  Katsunori Hisamatsu ,  Atsuo Takayama

IPC: A47C7/18 ,  B60N2/70

Abstract: A seat core material having reduced deformation, extremely excellent dimensional accuracy, sense of unity, and strength is thus provided. The frame member and the foamed particle molding are integrated in the seat core material.

公开(公告)号：US20210395481A1

公开(公告)日：2021-12-23

申请号：US17289169

申请日：2019-10-02

Applicant: JSP Corporation

Inventor： Shota TAKAGI ,  Akinobu HIRA

IPC: C08J9/18 ,  C08J9/00 ,  C08J9/228 ,  C08L53/00

Abstract: Expanded beads are those including a mixture of an olefin-based thermoplastic elastomer and a polyethylene-based resin, wherein a melt flow rate MFR(I) of the olefin-based thermoplastic elastomer is 2-10 g/10 min; a difference ((MFR(II))−(MFR(I))) between a melt flow rate MFR(II) of the polyethylene-based resin and the melt flow rate MFR(I) of the olefin-based thermoplastic elastomer is 1-35 g/10 min; and a content of the polyethylene-based resin in the mixture is 3-40% by weight.

公开(公告)号：US11168194B2

公开(公告)日：2021-11-09

申请号：US16625176

申请日：2018-06-21

Applicant: JSP Corporation

Inventor： Shota Takagi ,  Masaharu Oikawa

IPC: C08J9/16

Abstract: The present invention relates to thermoplastic olefin elastomer expanded beads, having an average aspect ratio of 1.10 or less and an average circularity of 0.985 or more. The thermoplastic olefin elastomer expanded beads preferably have a crystal structure such that a melting peak inherent in the thermoplastic olefin elastomer (inherent peak) and one or more melting peaks on a higher temperature side than the inherent peak (high temperature peaks) appear on a DSC curve obtained when heating the expanded beads from 23° C. to 200° C. at a heating rate of 10° C./min.