Thermoplastic elastomer composition, foam made from the same, and process for producing foam
    2.
    发明授权
    Thermoplastic elastomer composition, foam made from the same, and process for producing foam 有权
    热塑性弹性体组合物,由其制成的泡沫,以及生产泡沫的方法

    公开(公告)号:US06841582B2

    公开(公告)日:2005-01-11

    申请号:US09926426

    申请日:2001-03-01

    摘要: The present invention relates to a thermoplastic elastomer composition having a three-dimensional network structure which is not formed by a chemical crosslinking and having an excellent elasticity recovery and flexibility, a foam having a highly closed cell, an uniform cell shape, an excellent elasticity recovery, flexibility and appearance, and a process for producing the same. A thermoplastic elastomer of the invention is obtained by mixing in a predetermined ratio an EPDM (1), a crystalline polyethylenic resin (2) and a block copolymer (3) having a crystalline ethylenic polymeric block and a block which is more compatible with said EPDM than with said crystalline polyethylenic resin together with an anti-aging agent followed by kneading in a pressurized kneader. A foam of the invention is obtained by adding 1 part by mass of a wetting agent to 100 parts by mass of the thermoplastic elastomer composition described above together with a foaming agent, agitating and then performing an extrusion foaming.

    摘要翻译: 本发明涉及一种具有三维网状结构的热塑性弹性体组合物,该三维网状结构不是通过化学交联形成的,而且具有优异的弹性回复性和柔软性,具有高密封孔的泡沫,均匀的泡孔形状,优异的弹性恢复性 ,柔韧性和外观,以及其制造方法。 通过将EPDM(1),结晶聚乙烯树脂(2)和具有结晶性乙烯性聚合物嵌段的嵌段共聚物(3)和与所述EPDM更加相容的嵌段以预定比例混合,得到本发明的热塑性弹性体 与所述结晶聚乙烯树脂一起与抗老化剂一起在加压捏合机中捏合。 通过向100质量份上述热塑性弹性体组合物和发泡剂中加入1质量份润湿剂,搅拌并进行挤出发泡,得到本发明的泡沫体。

    Thermoplastic elastomer composition
    4.
    发明授权
    Thermoplastic elastomer composition 有权
    热塑性弹性体组合物

    公开(公告)号:US06696516B2

    公开(公告)日:2004-02-24

    申请号:US10009492

    申请日:2001-12-13

    IPC分类号: C08L2316

    摘要: The thermoplastic elastomer composition in the present invention comprises an ethylene.&agr;-olefinic copolymeric rubber (A) whose intrinsic viscosity [&eegr;] determined at 135° C. in decalin solvent is 3.5 to 6.8 dl/g, a mineral oil-based softener (B), an &agr;-olefinic crystalline polymer (C) whose degree of crystallinity is 50% or higher and an &agr;-olefinic amorphous polymer (D) whose melt viscosity at 190° C. is 50,000 cPs or less and whose degree of crystallinity is less than 50%, and at least a part of a mixture containing 20 to 63% by mass of the (A), 35 to 78% by mass of the (B), 1 to 12% by mass of the (C) and 1 to 12% by mass of the (D), based on 100% by mass of the total of the components (A), (B), (C) and (D), is crosslinked.

    摘要翻译: 本发明的热塑性弹性体组合物包含在十氢萘溶剂中在135℃下特性粘度η为3.5〜6.8dl / g的乙烯-α-烯烃共聚橡胶(A),矿物油系软化剂( B),其结晶度为50%以上的α-烯烃结晶聚合物(C)和其在190℃下的熔融粘度为50,000cPs以下且其结晶度为 (A)为20〜63质量%,(B)为35〜78质量%,(C)为1〜12质量%的混合物的至少一部分和 相对于(A),(B),(C)和(D)的总量的100质量%,(D)的1〜12质量%交联。

    Thermoplastic elastomer composition for core-back system foam injection molding and foam injection molding method using the same
    5.
    发明授权
    Thermoplastic elastomer composition for core-back system foam injection molding and foam injection molding method using the same 有权
    用于芯背系统泡沫注塑的热塑性弹性体组合物和使用其的泡沫注塑成型方法

    公开(公告)号:US07867416B2

    公开(公告)日:2011-01-11

    申请号:US12344915

    申请日:2008-12-29

    IPC分类号: B32B37/00

    CPC分类号: B29C44/0415

    摘要: The thermoplastic elastomer composition of the present invention comprises a thermoplastic elastomer which includes an ethylene•α-olefin copolymer and a crystalline polyethylene resin, wherein the crystalline polyethylene resin constitutes a three-dimensional network structure in a matrix formed by the ethylene•α-olefin copolymer, an organic or inorganic blowing agent and a nucleating agent, wherein the thermoplastic elastomer has a melt flow rate of 5 g/10 min or more at a temperature of 230° C. and a load of 10 kg, and a melt tension of 3.0 gf or more at a temperature of 210° C. and a pulling rate of 2 m/min. Also the foam injection molding method of the present invention is a method including injecting the above-mentioned composition into a cavity space of a metal mold and then expanding the cavity space to foam by opening the metal mold at a mold opening rate of 0.05 to 0.4 mm/sec.

    摘要翻译: 本发明的热塑性弹性体组合物包括一种热塑性弹性体,其包括乙烯·α-烯烃共聚物和结晶聚乙烯树脂,其中结晶聚乙烯树脂构成由乙烯·α-烯烃形成的基体中的三维网状结构 共聚物,有机或无机发泡剂和成核剂,其中热塑性弹性体在230℃的温度和10kg的载荷下的熔体流动速率为5g / 10min以上,熔体张力为 在210℃的温度下为3.0gf以上,拉伸速度为2m / min。 此外,本发明的泡沫注塑成型方法是将上述组合物注入到金属模的空腔内,然后以0.05〜0.4的开模率打开金属模将空腔膨胀成泡沫的方法 毫米/秒。

    Thermoplastic elastomer composition for core back type injection foaming and injection foaming method using the same
    8.
    发明申请
    Thermoplastic elastomer composition for core back type injection foaming and injection foaming method using the same 审中-公开
    用于芯背型注射发泡和注射发泡方法的热塑性弹性体组合物

    公开(公告)号:US20050029692A1

    公开(公告)日:2005-02-10

    申请号:US10487244

    申请日:2002-08-30

    IPC分类号: B29C44/04 C08J9/00

    CPC分类号: B29C44/0415

    摘要: The thermoplastic elastomer composition of the present invention comprises a thermoplastic elastomer which includes an ethylene•α-olefin copolymer and a crystalline polyethylene resin, wherein the crystalline polyethylene resin constitutes a three-dimensional network structure in a matrix formed by the ethylene•α-olefin copolymer, an organic or inorganic blowing agent and a nucleating agent, wherein the thermoplastic elastomer has a melt flow rate of 5 g/10 min or more at a temperature of 230° C. and a load of 10 kg, and a melt tension of 3.0 gf or more at a temperature of 210° C. and a pulling rate of 2 m/min. Also the foam injection molding method of the present invention is a method comprising of injecting the above-mentioned composition into a cavity space of a metal mold and then expanding the cavity space to foam by opening the metal mold at a mold opening rate of 0.05 to 0.4 mm/sec.

    摘要翻译: 本发明的热塑性弹性体组合物包括含有乙烯-α-烯烃共聚物和结晶聚乙烯树脂的热塑性弹性体,其中结晶聚乙烯树脂构成由乙烯-α-烯烃形成的基体中的三维网状结构 共聚物,有机或无机发泡剂和成核剂,其中热塑性弹性体在230℃的温度和10kg的载荷下的熔体流动速率为5g / 10min以上,熔体张力为 在210℃的温度下为3.0gf以上,拉伸速度为2m / min。 此外,本发明的泡沫注塑成型方法是将上述组合物注入到金属模具的空腔内,然后通过以0.05〜3.0的开模率打开金属模具将空腔膨胀成泡沫的方法 0.4毫米/秒。

    THERMOPLASTIC ELASTOMER COMPOSITION FOR CORE-BACK SYSTEM FOAM INJECTION MOLDING AND FOAM INJECTION MOLDING METHOD USING THE SAME
    9.
    发明申请
    THERMOPLASTIC ELASTOMER COMPOSITION FOR CORE-BACK SYSTEM FOAM INJECTION MOLDING AND FOAM INJECTION MOLDING METHOD USING THE SAME 有权
    用于核心系统泡沫注射成型和泡沫注射成型方法的热塑性弹性体组合物

    公开(公告)号:US20090108485A1

    公开(公告)日:2009-04-30

    申请号:US12344915

    申请日:2008-12-29

    IPC分类号: B29C44/08

    CPC分类号: B29C44/0415

    摘要: The thermoplastic elastomer composition of the present invention comprises a thermoplastic elastomer which includes an ethylene.α-olefin copolymer and a crystalline polyethylene resin, wherein the crystalline polyethylene resin constitutes a three-dimensional network structure in a matrix formed by the ethylene.α-olefin copolymer, an organic or inorganic blowing agent and a nucleating agent, wherein the thermoplastic elastomer has a melt flow rate of 5 g/10 min or more at a temperature of 230° C. and a load of 10 kg, and a melt tension of 3.0 gf or more at a temperature of 210° C. and a pulling rate of 2 m/min. Also the foam injection molding method of the present invention is a method including injecting the above-mentioned composition into a cavity space of a metal mold and then expanding the cavity space to foam by opening the metal mold at a mold opening rate of 0.05 to 0.4 mm/sec.

    摘要翻译: 本发明的热塑性弹性体组合物包括含有乙烯-α-烯烃共聚物和结晶聚乙烯树脂的热塑性弹性体,其中结晶聚乙烯树脂构成由乙烯-α-烯烃形成的基体中的三维网状结构 共聚物,有机或无机发泡剂和成核剂,其中热塑性弹性体在230℃的温度和10kg的载荷下的熔体流动速率为5g / 10min以上,熔体张力为 在210℃的温度下为3.0gf以上,拉伸速度为2m / min。 此外,本发明的泡沫注塑成型方法是将上述组合物注入到金属模的空腔内,然后以0.05〜0.4的开模率打开金属模将空腔膨胀成泡沫的方法 毫米/秒。