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    Method for manufacturing foam molded body and foam molded body
    1.
    发明授权
    Method for manufacturing foam molded body and foam molded body 有权

    公开(公告)号：US11648713B2

    公开(公告)日：2023-05-16

    申请号：US17591917

    申请日：2022-02-03

    申请人： Maxell, Ltd.

    发明人： Atsushi Yusa ,  Hideto Goto ,  Satoshi Yamamoto

    IPC分类号： B29C44/10 ,  B29C44/04 ,  B29C44/34 ,  B29K81/00

    CPC分类号： B29C44/105 ,  B29C44/0415 ,  B29C44/3415 ,  B29C44/3442 ,  B29K2081/04

    摘要： A method for producing a foam-molded product by using a plasticizing cylinder, includes: plasticizing and melting the thermoplastic resin to provide the molten resin in a plasticization zone of the plasticizing cylinder; introducing a pressurized fluid containing the physical foaming agent at a fixed pressure into a starvation zone of the plasticizing cylinder to retain the starvation zone at the fixed pressure; allowing the molten resin to be in the starved state in the starvation zone; bringing the molten resin in contact with the pressurized fluid containing the physical foaming agent at the fixed pressure, in the starvation zone in a state in which the starvation zone is retained at the fixed pressure; and molding the molten resin having been brought in contact with the pressurized fluid containing the physical foaming agent into the foam-molded product.

    Method and apparatus for manufacturing foamed product
    2.
    发明授权
    Method and apparatus for manufacturing foamed product 有权

    公开(公告)号：US11318646B2

    公开(公告)日：2022-05-03

    申请号：US16508731

    申请日：2019-07-11

    申请人： MAXELL, LTD.

    发明人： Atsushi Yusa ,  Satoshi Yamamoto ,  Hideto Goto

    IPC分类号： B29C44/02 ,  B29C45/18 ,  B29C45/17

    摘要： The method for manufacturing a foamed product uses a manufacturing apparatus having a plasticizing cylinder in which an introduction port for introducing a physical blowing agent into a starvation zone is formed, and an introduction speed adjustment container connected to the introduction port, wherein the manufacturing method comprises: turning a thermoplastic resin into a molten resin; introducing the physical blowing agent at a predetermined pressure into the starvation zone through the introduction speed adjustment container and maintaining the starvation zone at a predetermined pressure; setting the molten resin to a starved state; bringing the molten resin in the starved state and the pressurized fluid into contact with each other; and molding the molten resin into a foamed product. The maximum value of the inner diameter of the introduction speed adjustment container is larger than the inner diameter of the introduction port.

    Method for manufacturing foam molded body and foam molded body
    3.
    发明授权
    Method for manufacturing foam molded body and foam molded body 有权

    公开(公告)号：US11260564B2

    公开(公告)日：2022-03-01

    申请号：US16716664

    申请日：2019-12-17

    申请人： MAXELL, LTD.

    发明人： Atsushi Yusa ,  Hideto Goto ,  Satoshi Yamamoto

    IPC分类号： B29C44/10 ,  B29C44/04 ,  B29C44/34 ,  B29K81/00

    摘要： A method for producing a foam-molded product by using a plasticizing cylinder, includes: plasticizing and melting the thermoplastic resin to provide the molten resin in a plasticization zone of the plasticizing cylinder; introducing a pressurized fluid containing the physical foaming agent at a fixed pressure into a starvation zone of the plasticizing cylinder to retain the starvation zone at the fixed pressure; allowing the molten resin to be in the starved state in the starvation zone; bringing the molten resin in contact with the pressurized fluid containing the physical foaming agent at the fixed pressure, in the starvation zone in a state in which the starvation zone is retained at the fixed pressure; and molding the molten resin having been brought in contact with the pressurized fluid containing the physical foaming agent into the foam-molded product.

    Method for manufacturing foam molded body and foam molded body
    4.
    发明授权
    Method for manufacturing foam molded body and foam molded body 有权

    公开(公告)号：US11945140B2

    公开(公告)日：2024-04-02

    申请号：US18170266

    申请日：2023-02-16

    申请人： MAXELL, LTD.

    发明人： Atsushi Yusa ,  Hideto Goto ,  Satoshi Yamamoto

    IPC分类号： B29C44/10 ,  B29C44/04 ,  B29C44/34 ,  B29K81/00

    CPC分类号： B29C44/105 ,  B29C44/0415 ,  B29C44/3415 ,  B29C44/3442 ,  B29K2081/04

    摘要： A method for producing a foam-molded product by using a plasticizing cylinder, includes: plasticizing and melting the thermoplastic resin to provide the molten resin in a plasticization zone of the plasticizing cylinder; introducing a pressurized fluid containing the physical foaming agent at a fixed pressure into a starvation zone of the plasticizing cylinder to retain the starvation zone at the fixed pressure; allowing the molten resin to be in the starved state in the starvation zone; bringing the molten resin in contact with the pressurized fluid containing the physical foaming agent at the fixed pressure, in the starvation zone in a state in which the starvation zone is retained at the fixed pressure; and molding the molten resin having been brought in contact with the pressurized fluid containing the physical foaming agent into the foam-molded product.

    Manufacturing method and manufacturing device for foam molded article
    6.
    发明授权
    Manufacturing method and manufacturing device for foam molded article 有权

    公开(公告)号：US11820063B2

    公开(公告)日：2023-11-21

    申请号：US17953914

    申请日：2022-09-27

    申请人： MAXELL, LTD.

    发明人： Atsushi Yusa ,  Satoshi Yamamoto ,  Hideto Goto

    IPC分类号： B29C48/53 ,  B29C48/395 ,  B29C44/02 ,  B29C45/60 ,  B29C45/62 ,  B29K105/04

    CPC分类号： B29C48/53 ,  B29C44/02 ,  B29C45/60 ,  B29C45/62 ,  B29C48/397 ,  B29K2105/04

    摘要： A method for producing a foam-molded product uses a producing apparatus including a plasticizing cylinder. The plasticizing cylinder has a plasticization zone, a starvation zone, and an introducing port which is formed in the plasticizing cylinder and via which a physical foaming agent is introduced into the starvation zone. The method includes: plasticizing and melting a thermoplastic resin into a molten resin in the plasticization zone; introducing a pressurized fluid containing the physical foaming agent having a fixed pressure into the starvation zone; allowing the molten resin to be in the starved state in the starvation zone; bringing the molten resin in the starved state into contact with the pressurized fluid having the fixed pressure in the starvation zone; and molding the molten resin into the foam-molded product. At least one pressure boosting part is provided in the starvation zone.

    METHOD FOR MANUFACTURING FOAM MOLDED BODY AND FOAM MOLDED BODY
    10.
    发明公开
    METHOD FOR MANUFACTURING FOAM MOLDED BODY AND FOAM MOLDED BODY 审中-公开

    公开(公告)号：US20230202080A1

    公开(公告)日：2023-06-29

    申请号：US18170266

    申请日：2023-02-16

    申请人： MAXELL, LTD.

    发明人： Atsushi Yusa ,  Hideto Goto ,  Satoshi Yamamoto

    IPC分类号： B29C44/10 ,  B29C44/04 ,  B29C44/34

    CPC分类号： B29C44/105 ,  B29C44/0415 ,  B29C44/3415 ,  B29C44/3442 ,  B29K2081/04

    摘要： A method for producing a foam-molded product by using a plasticizing cylinder, includes: plasticizing and melting the thermoplastic resin to provide the molten resin in a plasticization zone of the plasticizing cylinder; introducing a pressurized fluid containing the physical foaming agent at a fixed pressure into a starvation zone of the plasticizing cylinder to retain the starvation zone at the fixed pressure; allowing the molten resin to be in the starved state in the starvation zone; bringing the molten resin in contact with the pressurized fluid containing the physical foaming agent at the fixed pressure, in the starvation zone in a state in which the starvation zone is retained at the fixed pressure; and molding the molten resin having been brought in contact with the pressurized fluid containing the physical foaming agent into the foam-molded product.