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    • 52. 发明授权
    • Method for injection expansion molding of thermoplastic resin
    • 热塑性树脂注射膨胀成型方法
    • US07858002B2
    • 2010-12-28
    • US11579414
    • 2005-07-21
    • Akio OkamotoKazuaki Miyamoto
    • Akio OkamotoKazuaki Miyamoto
    • B29C45/00B29C45/70
    • B29C44/422B29C44/586
    • An injection-foaming method for a thermoplastic resin comprising using an injection unit 30 provided with a hopper 35, a plasticizing cylinder 31 and a screw 32, and a mold 10 having a mold cavity 10a of changeable capacity; filling the mold cavity 10a with a foaming-agent-containing melted resin injected from the injection unit 30; and then enlarging the mold cavity 10a for allowing the foaming-agent-containing melted resin to expand, wherein inclusion of a foaming agent into a thermoplastic resin is done by using a mixture of a foam nucleating agent and a foaming gas as foaming agent, feeding the mixture to hopper 35 or plasticizing cylinder 31 and screw 32 of injection unit 30 at a pressure of 0.1 MPa or more and less than 1.0 MPa, and contacting the mixture with a pre- or post-plasticized thermoplastic resin present in hopper 35 or plasticizing cylinder 31 and screw 32.
    • 一种热塑性树脂的注射发泡方法,包括使用设有料斗35,塑化筒31和螺杆32的注射单元30和具有可变容量的模腔10a的模具10。 用从注射单元30注入的含发泡剂的熔融树脂填充模腔10a; 然后扩大模腔10a,使含发泡剂的熔融树脂膨胀,其中通过使用泡沫成核剂和发泡气体的混合物作为发泡剂,将发泡剂包含在热塑性树脂中进行,进料 在0.1MPa以上且小于1.0MPa的压力下将混合物与料斗35或塑化筒31和注射单元30的螺杆32接触,并将混合物与存在于料斗35中的预塑化后塑化树脂或增塑剂 气缸31和螺杆32。
    • 54. 发明授权
    • Method for foam injection molding of thermoplastic resin
    • 热塑性树脂注射成型的方法
    • US07740776B2
    • 2010-06-22
    • US11990782
    • 2006-08-23
    • Akio OkamotoKazuaki Miyamoto
    • Akio OkamotoKazuaki Miyamoto
    • B29C44/42B29C45/07
    • B29C44/586
    • A method for injection foaming molding of a thermoplastic resin includes the steps of (1) injecting the foaming-agent-containing plasticized resin from an injection apparatus 30 to fill a mold cavity 10a, (2) releasing a clamping force of a mold 10 immediately after the foaming-agent-containing plasticized resin is injected and filled into the mold cavity 10a, so as to release the pressure of the foaming-agent-containing plasticized resin in the mold cavity 10a, (3) maintaining the pressure-released state of the foaming-agent-containing plasticized resin in the mold cavity 10a for a predetermined period of time, (4) expanding the mold cavity 10a to foam the foaming-agent-containing plasticized resin, and (5) cooling and maintaining the foaming-agent-containing plasticized resin while the mold cavity 10a is in the expanded state.
    • 热塑性树脂的注射发泡成型方法包括以下步骤:(1)从注射装置30注入含发泡剂的增塑树脂以填充模腔10a,(2)立即释放模具10的夹紧力 在将含发泡剂的增塑树脂注入并填充到模腔10a中之后,释放模腔10a中的含发泡剂的增塑树脂的压力,(3)保持压力释放状态 在模腔10a中含有发泡剂的增塑树脂预定时间,(4)使模腔10a膨胀以使含发泡剂的增塑树脂发泡,和(5)冷却和保持发泡剂 同时模腔10a处于膨胀状态。
    • 55. 发明申请
    • PROCESS FOR PRODUCING THERMOPLASTIC ELASTOMER COMPOSITION FOAM BODY, AND THERMOPLASTIC ELASTOMER COMPOSITION FOR FOAM INJECTION MOLDING
    • 生产热塑性弹性体组合物泡沫体的方法和用于泡沫注射成型的热塑性弹性体组合物
    • US20090155537A1
    • 2009-06-18
    • US12331526
    • 2008-12-10
    • Kazuyoshi FuseYuya Yamamoto
    • Kazuyoshi FuseYuya Yamamoto
    • B32B3/26B29C44/08C08L53/02
    • B29C44/586C08J9/0061C08J9/0066C08J2351/02C08J2423/00C08L23/10C08L53/02C08L53/025Y10T428/24504C08L2666/24C08L2666/02C08L2666/04
    • A process for producing a thermoplastic elastomer composition foam body is provided that includes, in sequence, a step of injecting by an injection molding machine into a cavity of a mold for injection molding a foaming agent and a thermoplastic elastomer composition comprising component (A), component (B), and component (C) below, component (B) having a content of 5 to 150 parts by weight relative to 100 parts by weight of component (A) and component (C) having a content of 5 to 300 parts by weight relative to 100 parts by weight of component (A), a step of holding for not less than 4 seconds after completion of the injection, and a step of enlarging the volume of the cavity by moving a wall face of the cavity to a predetermined position. (A): A hydrogenated product of a block copolymer comprising a block composed of an aromatic vinyl compound-based monomer unit and a block composed of a conjugated diene compound-based monomer unit, (B): a propylene resin, and (C): a mineral oil. There are also provided a thermoplastic elastomer composition for foam injection molding, a foam body formed by foam injection molding of the thermoplastic elastomer composition, a process for producing a foam body employing the thermoplastic elastomer composition, and use of the thermoplastic elastomer composition as a composition for foam injection molding.
    • 提供一种制造热塑性弹性体组合物泡沫体的方法,其中依次包括通过注射成型机注射到用于注射成型发泡剂的模具的空腔中的步骤和包含组分(A)的热塑性弹性体组合物, 组分(B)和组分(C))相对于100重量份组分(A)和组分(C)含量为5至300重量份,含量为5至150重量份的组分(B) ,相对于100重量份的组分(A)的重量,在注射完成后保持不少于4秒的步骤,以及通过将空腔的壁面移动到空腔的体积来扩大空腔的步骤 预定位置。 (A):包含由芳香族乙烯基化合物类单体单元构成的嵌段和由共轭二烯化合物类单体单元构成的嵌段的嵌段共聚物的氢化物,(B):丙烯树脂,(C) :矿物油。 还提供了一种用于泡沫注塑的热塑性弹性体组合物,通过热塑性弹性体组合物的泡沫注射成型形成的泡沫体,使用该热塑性弹性体组合物的泡沫体的制造方法,以及使用该热塑性弹性体组合物作为组合物 用于泡沫注塑。