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.

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：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：US10184038B2

公开(公告)日：2019-01-22

申请号：US14881800

申请日：2015-10-13

Applicant: JSP CORPORATION

Inventor： Mitsuru Shinohara ,  Masaharu Oikawa

IPC: C08J9/12 ,  C08J9/18 ,  C08G63/08 ,  C08J9/232

Abstract: Polylactic acid-based resin expanded beads obtained by releasing a softened, pressurized foamable resin composition, which has a polylactic acid-based resin and a physical blowing agent, to a low pressure atmosphere to foam and expand the resin composition, where the polylactic acid-based resin satisfies the conditions (1) to (3) shown below, and exhibits excellent secondary expansion properties and fusion bonding properties. A polylactic acid-based resin expanded beads molded article obtained by in-mold molding of the polylactic acid-based resin expanded beads exhibits excellent mechanical properties. MT≤30 mN  (1) log MT≤0.93 log η−1.75  (2) CT1/2≥600 sec  (3) where MT represents a melt tension [mN] at 190° C., η represents a melt viscosity [Pa·s] at 190° C. and a shear speed of 20 sec−1, and CT1/2 represents a half crystallization time [sec] at 110° C.

公开(公告)号：US20180251619A1

公开(公告)日：2018-09-06

申请号：US15972714

申请日：2018-05-07

Applicant: JSP Corporation

Inventor： Mitsuru Shinohara ,  Masaharu Oikawa

IPC: C08J9/18 ,  C08J9/16 ,  C08J9/232 ,  C08J9/12 ,  C08J9/00

CPC classification number: C08J9/18 ,  C08J9/0061 ,  C08J9/122 ,  C08J9/16 ,  C08J9/232 ,  C08J2203/06 ,  C08J2205/052 ,  C08J2323/14 ,  C08J2323/16 ,  C08J2400/16 ,  C08J2409/06 ,  C08J2423/14 ,  C08J2423/16 ,  C08J2453/02 ,  C08J2467/00 ,  C08J2467/04

Abstract: The present invention relates to polyolefin resin expanded beads containing multi-layer expanded beads containing a core layer in a foamed state containing a polyolefin resin and a cover layer coated on the core layer, the cover layer containing a mixed resin of a polyolefin resin (A) and at least one resin (B) selected from a polystyrene resin and a polyester resin, and the mixed resin having a weight ratio (A/B) of the polyolefin resin (A) and the resin (B) of from 15/85 to 90/10, and a composite laminated body using an expanded beads molded body thereof, and the expanded beads molded body is excellent in solvent resistance and also excellent in adhesiveness to a thermosetting resin on the surface of the molded body, and can provide a composite laminated body excellent in productivity with a thermosetting resin.

公开(公告)号：US09449735B2

公开(公告)日：2016-09-20

申请号：US14047584

申请日：2013-10-07

Applicant: JSP CORPORATION

Inventor： Takuya Chiba ,  Masaharu Oikawa ,  Mitsuru Shinohara

IPC: H01B1/06 ,  H01B1/24 ,  C08J9/00 ,  C08J9/12 ,  C08J9/18 ,  C08J9/232 ,  C08J9/34

CPC classification number: H01B1/24 ,  C08J9/0061 ,  C08J9/008 ,  C08J9/122 ,  C08J9/18 ,  C08J9/232 ,  C08J9/34 ,  C08J2201/034 ,  C08J2203/06 ,  C08J2205/052 ,  C08J2323/10 ,  C08J2423/04 ,  C08J2453/00

Abstract: An electrostatic dissipating molded article having a surface resistivity of 1×105 to 1×1010Ω and obtained by in-mold molding of multi-layered polyolefin-based resin expanded beads each having an polyolefin-based resin expanded core layer and a polyolefin-based resin cover layer which covers the polyolefin-based resin expanded core layer and which is formed from a polyolefin-based resin (A), a polymeric antistatic agent (B) of a block copolymer of a polyether block and a polyolefin block, and an electrically conductive carbon black (C), the components (A) to (C) being present in a specific proportion.

Abstract translation: 一种表面电阻率为1×10 5〜1×10 10Ω的静电消散模制品，其通过模内成型多层聚烯烃类树脂发泡珠而得到，所述多层聚烯烃类树脂发泡珠均具有聚烯烃类树脂发泡芯层和聚烯烃系树脂 覆盖聚烯烃类树脂发泡芯层的覆盖层，其由聚烯烃类树脂（A），聚醚嵌段和聚烯烃嵌段的嵌段共聚物的聚合抗静电剂（B）和导电性 炭黑（C），成分（A）〜（C）以比例存在。