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    METHOD FOR PRODUCING POLYPROPYLENE-BASED RESIN FOAMED MOLDED ARTICLE
    1.
    发明申请
    METHOD FOR PRODUCING POLYPROPYLENE-BASED RESIN FOAMED MOLDED ARTICLE 有权

    公开(公告)号：US20210309843A1

    公开(公告)日：2021-10-07

    申请号：US17274530

    申请日：2018-09-21

    申请人： JSP CORPORATION

    发明人： Masahiro GOMIBUCHI ,  Jinichiro NORO

    IPC分类号： C08L23/14 ,  C08J9/12

    摘要： A method for producing a polypropylene-based resin foamed molded article by blow molding a foamed parison formed of a base resin, in which: the base resin contains, in specific mixing proportions, a branched polypropylene-based resin (A), a linear polypropylene-based resin (B) and a recovered raw material (C) that is recovered in the course of production of the polypropylene-based resin foamed molded article. Each of the resin (A), resin (B) and the recovered raw material (C), has a specific range of a melt tension and a melt flow rate. A difference in melting point between the resin (A) and resin (B) is within a specific range. A difference in crystallization temperature between the resin (A) and resin (B) is within a specific range.

    METHOD FOR PRODUCING THERMOPLASTIC RESIN FOAMED BLOW-MOLDED ARTICLE AND THERMOPLASTIC RESIN FOAMED BLOW-MOLDED ARTICLE
    3.
    发明申请
    METHOD FOR PRODUCING THERMOPLASTIC RESIN FOAMED BLOW-MOLDED ARTICLE AND THERMOPLASTIC RESIN FOAMED BLOW-MOLDED ARTICLE 有权
    生产热塑性树脂泡沫吹塑制品和热塑性树脂泡沫塑料制品的方法

    公开(公告)号：US20140171533A1

    公开(公告)日：2014-06-19

    申请号：US14096722

    申请日：2013-12-04

    申请人： JSP CORPORATION

    发明人： Tatsuya KOIZUMI ,  Masahiro GOMIBUCHI

    IPC分类号： C08L71/00 ,  B29C44/34 ,  C08L25/06 ,  B29C49/04

    CPC分类号： C08L25/06 ,  B29C44/507 ,  B29C44/56 ,  B29C47/0054 ,  B29C49/04 ,  B29C2049/4667 ,  C08J9/0038 ,  C08J9/141 ,  C08J2201/03 ,  C08J2203/14 ,  C08J2325/06 ,  C08J2371/12 ,  C08J2425/06 ,  C08J2471/12 ,  Y10T428/1376 ,  C08L71/12

    摘要： Provided is a hollow foamed blow-molded article having a high heat resistance, employing a thermoplastic resin composition containing a mixed resin of a polyphenylene ether resin and a polystyrene resin, as a base resin. The foamed blow-molded article, may be produced by extruding a foamable molten resin composition obtained by kneading the thermoplastic resin composition and a blowing agent to form a foamed parison, and blow molding the foamed parison. A glass transition temperature of the thermoplastic resin composition is 110° C. or higher. A melt viscosity of the thermoplastic resin composition at a temperature of the glass transition temperature+80° C. and at a shear rate of 100/sec is 3000 to 9500 Pa·s. The physical blowing agent is a blowing agent containing a hydrocarbon compound having 3-5 carbon atoms. A blending amount of the physical blowing agent is 0.4 to 1 mol per kg of the thermoplastic resin composition.

    摘要翻译： 提供一种具有高耐热性的中空泡沫吹塑制品，其使用含有聚苯醚树脂和聚苯乙烯树脂的混合树脂的热塑性树脂组合物作为基础树脂。 发泡吹塑制品可以通过将通过捏合热塑性树脂组合物和发泡剂获得的可发泡熔融树脂组合物挤出以形成发泡型坯，并对发泡型坯进行吹塑来制造。 热塑性树脂组合物的玻璃化转变温度为110℃以上。 在玻璃化转变温度+ 80℃，剪切速度100 /秒的温度下，热塑性树脂组合物的熔融粘度为3000〜9500Pa·s。 物理发泡剂是含有3-5个碳原子的烃化合物的发泡剂。 物理发泡剂的混合量为每公斤热塑性树脂组合物0.4-1mol。

    METHOD FOR PRODUCING SKIN-COVERED FOAMED MOLDED ARTICLE AND APPARATUS FOR PRODUCING THEREOF
    6.
    发明申请
    METHOD FOR PRODUCING SKIN-COVERED FOAMED MOLDED ARTICLE AND APPARATUS FOR PRODUCING THEREOF 审中-公开
    用于生产皮肤覆盖的泡沫塑料制品的方法及其制造方法

    公开(公告)号：US20130175725A1

    公开(公告)日：2013-07-11

    申请号：US13735375

    申请日：2013-01-07

    申请人： JSP CORPORATION

    发明人： Tomoo TOKIWA ,  Masahiro GOMIBUCHI ,  Daisuke IMANARI

    IPC分类号： B32B1/02

    CPC分类号： B32B1/02 ,  B29C44/146 ,  B29C44/18 ,  B29C44/343 ,  B29C44/3461 ,  B29C44/58 ,  B29C49/04 ,  B29C49/46 ,  B29C2049/4667 ,  B29C2049/5837

    摘要： A method for producing a skin-covered foamed molded article including blow-molding a parison in a mold cavity to form a skin consisting of a hollow molded body, in which the parison is in a softened state by extruding a molten thermoplastic resin, filling expanded beads in the hollow molded body, and heating and fusion bonding the beads by supplying steam via a steam supply pipe inserted into the hollow molded body. The parison is in contact with a protruding portion, formed by protrusion from an inner surface of the mold cavity to an inside of the cavity, forming a recessed portion having a shape corresponding to the protruding portion in the inward direction of the hollow molded body. A steam hole is formed in the recessed portion, a steam supply pipe is inserted into the body, and the expanded beads are heated and fusion bonded by supplying steam.

    摘要翻译： 一种皮肤覆盖的发泡成型体的制造方法，其特征在于，在模腔内形成型坯，形成由中空成型体构成的皮肤，所述型坯通过挤出熔融热塑性树脂处于软化状态， 中空成型体中的小珠，并且通过插入中空成型体中的蒸汽供给管供给蒸汽来加热熔融粘合珠粒。 型坯与从模腔的内表面突出到空腔的内部的突出部分接触，形成与中空成型体的向内方向上的突出部分相对应的形状的凹部。 在凹部形成蒸汽孔，将蒸汽供给管插入体内，通过供给蒸汽对发泡珠进行加热熔合。