中科微点-全球专利检索

  1. Login
  2. Sign Up

Search Results

6 records (took 0.012 seconds)

    Method for producing polypropylene-based resin foamed molded article
    3.
    发明授权
    Method for producing polypropylene-based resin foamed molded article 有权

    公开(公告)号：US11965084B2

    公开(公告)日：2024-04-23

    申请号：US17274530

    申请日：2018-09-21

    Applicant: JSP CORPORATION

    Inventor： Masahiro Gomibuchi ,  Jinichiro Noro

    IPC: C08L23/14 ,  C08J9/12

    CPC classification number: C08L23/14 ,  C08J9/122 ,  C08J2323/14 ,  C08J2423/14 ,  C08L2205/03 ,  C08L2207/04 ,  C08L2207/20

    Abstract: 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
    4.
    发明授权
    Method for producing thermoplastic resin foamed blow-molded article and thermoplastic resin foamed blow-molded article 有权
    热塑性树脂发泡吹塑制品和热塑性树脂发泡吹塑制品的制造方法

    公开(公告)号：US08974882B2

    公开(公告)日：2015-03-10

    申请号：US14096722

    申请日：2013-12-04

    Applicant: JSP Corporation

    Inventor： Tatsuya Koizumi ,  Masahiro Gomibuchi

    IPC: C08J9/12 ,  C08L71/12 ,  B29C44/00 ,  B29C44/04 ,  B29D22/00 ,  C08L71/00 ,  B29C49/04 ,  C08L25/06 ,  B29C47/00 ,  B29C44/50 ,  B29C44/56 ,  B29C49/46

    CPC classification number: 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

    Abstract: 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.

    Abstract translation: 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 foam blow-molded article
    5.
    发明授权
    Method for producing foam blow-molded article 有权

    公开(公告)号：US10974435B2

    公开(公告)日：2021-04-13

    申请号：US15528993

    申请日：2015-12-11

    Applicant: JSP CORPORATION

    Inventor： Masahiro Gomibuchi ,  Toshio Morita

    IPC: B29C49/04 ,  B29C33/20 ,  B29C49/42 ,  B29C49/00 ,  B29C49/18 ,  B29C49/58 ,  B29C49/46 ,  B29C49/56 ,  B29K105/04

    Abstract: A method for producing a foamed blow-molded article, which includes extruding a physical blowing agent-containing foamable molten resin downwardly through a annular die to form a tubular foamed parison, clamping the foamed parison between split molds, and then blow molding it. At the latest before completion of the clamping of the foamed parison between the split molds, a gas is blown toward an inner peripheral surface of an upper portion of the foamed parison, the bottom portion of which has been closed, from a gas ejection outlet located within the foamed parison at a position immediately below the annular die to widen the foamed parison.

    Method for producing skin-covered foamed molded article and apparatus for producing thereof
    6.
    发明授权
    Method for producing skin-covered foamed molded article and apparatus for producing thereof 有权

    公开(公告)号：US10279558B2

    公开(公告)日：2019-05-07

    申请号：US13735375

    申请日：2013-01-07

    Applicant: JSP CORPORATION

    Inventor： Tomoo Tokiwa ,  Masahiro Gomibuchi ,  Daisuke Imanari

    IPC: B29C49/04 ,  B29C44/34 ,  B29C44/14 ,  B32B1/02 ,  B29C44/18 ,  B29C49/46 ,  B29C49/58

    Abstract: 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.

Patent Agency Ranking