公开(公告)号：US20150273801A1

公开(公告)日：2015-10-01

申请号：US14666721

申请日：2015-03-24

Applicant: JSP CORPORATION

Inventor： Tomoo TOKIWA ,  Hiroki KAWAKAMI

IPC: B32B27/06 ,  B32B27/32 ,  B32B27/28

CPC classification number: B32B27/065 ,  B32B27/00 ,  B32B27/06 ,  B32B27/08 ,  B32B27/28 ,  B32B27/30 ,  B32B27/302 ,  B32B27/32 ,  B32B2250/02 ,  B32B2250/24 ,  B32B2266/00 ,  B32B2266/02 ,  B32B2266/0228 ,  B32B2266/025 ,  B32B2307/536 ,  B32B2307/56 ,  B32B2307/72 ,  B32B2307/734 ,  B32B2419/00 ,  B32B2439/00 ,  B32B2439/62 ,  B32B2553/00 ,  Y10T428/24504

Abstract: A skin-covered foamed molded article composed of a polystyrene-based resin expanded beads molded article, and a skin that covers a substantially entire surface of the expanded beads molded article, wherein the skin is formed of an olefinic thermoplastic elastomer and covers the expanded beads molded article in such a manner that the skin is in contact with the surface thereof but is unbonded thereto.

Abstract translation: 由聚苯乙烯类树脂发泡珠成型体构成的皮肤覆盖的发泡成型体和覆盖发泡珠成型体的大致整个表面的皮肤，其中，皮肤由烯烃类热塑性弹性体形成，并覆盖发泡珠粒 模制品以使皮肤与其表面接触但与之无接触的方式。

公开(公告)号：US20200094451A1

公开(公告)日：2020-03-26

申请号：US16469009

申请日：2017-12-21

Applicant: JSP CORPORATION

Inventor： Hiroki KAWAKAMI ,  Tomoo TOKIWA

IPC: B29C44/18 ,  C08J9/236 ,  C08J9/232 ,  C08L23/16 ,  B29B11/06

Abstract: A method for producing a foamed particle molded article provided with a skin, includes: forming a hollow molded article; filling a hollow part of the hollow molded article with polypropylene-based resin foamed particles; and heating and fusing the particles to each other. A melt elongation at 190° C. of the polypropylene-based resin forming the hollow molded article is 100 m/min or more. A half-crystallization time at 100° C. of the polypropylene-based resin is between 25 to 80 seconds. In heat flux differential scanning calorimetry, a melting peak temperature of the polypropylene-based resin is between 130 to 155° C., a partial heat of fusion at 140° C. or more of the polypropylene-based resin is between 20 to 50 J/g, and a ratio of the partial heat of fusion of the polypropylene-based resin to the total (partial heat of fusion/total heat of fusion) is between 0.2 to 0.8.

公开(公告)号：US20150231811A1

公开(公告)日：2015-08-20

申请号：US14618552

申请日：2015-02-10

Applicant: JSP CORPORATION

Inventor： Tomoo TOKIWA ,  Hiroki KAWAKAMI

IPC: B29C49/02

CPC classification number: B29C49/02 ,  B29C44/146 ,  B29C44/445 ,  B29C49/04 ,  B29C67/205 ,  B29K2023/06 ,  B29K2023/12 ,  B29K2101/12 ,  B29K2623/12 ,  B29L2009/00

Abstract: Provided is a method for producing a skin-covered foamed molded article of a hollow molded article in which a molded article of foamed particles is included by forming a hollow molded article by blow molding a parison formed by extruding a melt kneaded product of a polyethylene-based resin, filling thermoplastic resin foamed particles within the hollow molded article, and fusion bonding the foamed particles by supplying and discharging a heating medium from a heating medium supply pins inserted into the hollow molded article, wherein a polyethylene-based resin composition having tensile elongation at break of 500 to 1000% at 80° C. and half-crystallization time of 5 to 50 seconds at 120° C. is used for forming the hollow molded article so that a skin-covered foamed molded article having excellent fusion bonding property between foamed particles can be obtained with a short molding cycle.

Abstract translation: 本发明提供一种中空成型体的表皮覆盖发泡成型体的制造方法，其中，通过吹塑成型挤出由聚乙烯 - 丙烯酸乙酯的熔融混炼物形成的型坯，形成中空成形体，形成发泡粒子的成型体， 在中空成型体内填充热塑性树脂发泡颗粒，并且通过从插入中空成型制品的加热介质供给销供给和排出加热介质来熔融发泡颗粒，其中具有拉伸伸长率的聚乙烯类树脂组合物 在80℃下的断裂为500〜1000％，在120℃下的半结晶时间为5〜50秒，形成中空成型体，使得具有优异的熔融粘合性的皮肤覆盖的发泡成型体 可以以短的成型周期获得发泡颗粒。