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    • 2. 发明申请
    • Process for Producing Molded Article by T-Die Molding
    • T型模具成型制造工艺
    • US20090166911A1
    • 2009-07-02
    • US12225527
    • 2007-03-23
    • Hirotaka UosakiKuniaki KawabeMotoyasu YasuiHideki KurokiTerufumi SuzukiHideo NakamuraYasushi Amada
    • Hirotaka UosakiKuniaki KawabeMotoyasu YasuiHideki KurokiTerufumi SuzukiHideo NakamuraYasushi Amada
    • B29C39/42B29C39/00
    • C08L23/04B29C48/08B29C48/30B29C48/305B29C48/914C08J5/18C08J2323/02C08J2323/10C08L23/02C08L23/06C08L2205/02C08L91/06C08L2666/06
    • [Object] Disclosed is to provide a process for producing a molded article of polyethylene excellent in mechanical properties while the productivity at the time of T-die molding is improved, and a process for producing a secondary molded article by vacuum molding of the molded article with high formability. [Means to Solve the Problems] A process for producing a molded article by T-die molding of a mixture comprising a polyolefinic resin and a polyethylene wax, the polyethylene wax having a density of 880 to 980 (kg/m3) as measured by a density gradient tube method in accordance with JIS K7112 and a number average molecular weight (Mn) of 500 to 4,000 in terms of polyethylene as determined by gel permeation chromatography (GPC) and satisfying the relationship shown by the following expression (I): B≦0.0075×K  (I) (In the expression (I), B is a content ratio (% by weight) of components having a molecular weight of 20,000 or more in terms of polyethylene in the polyethylene wax as determined by gel permeation chromatography and K is a melt viscosity (mPa·s) of the polyethylene wax at 140° C.).
    • 本发明提供一种制造机械特性优异的聚乙烯模塑制品的方法,同时提高T型模塑成型时的生产率,以及通过真空成型模制品制备二次模制品的方法 具有高成形性。 解决问题的手段通过使用包含聚烯烃树脂和聚乙烯蜡的混合物的T模成型来制造模制品的方法,通过以下方式测量密度为880至980(kg / m 3)的聚乙烯蜡 按照JIS K7112的密度梯度管法和通过凝胶渗透色谱法(GPC)测定的聚乙烯换算的数均分子量(Mn)为500〜4000,满足下述式(I)所示的关系: in-line-formula description =“In-line Formulas”end =“lead”?> B <= 0.0075xK(I)<?in-line-formula description =“In-line Formulas”end =“tail”?> (式(I)中,B是通过凝胶渗透色谱法测定的聚乙烯蜡中的分子量为20,000以上的分子量为20,000以上的成分的含有比例(重量%),K为熔融粘度(mPa .s)的聚乙烯蜡在140℃)。
    • 3. 发明申请
    • Process for Producing Oriented Film
    • 制作定向胶片的方法
    • US20090137729A1
    • 2009-05-28
    • US12225581
    • 2007-03-26
    • Hirotaka UosakiKuniaki KawabeMotoyasu YasuiTerufumi SuzukiHideo NakamuraYasushi Amada
    • Hirotaka UosakiKuniaki KawabeMotoyasu YasuiTerufumi SuzukiHideo NakamuraYasushi Amada
    • C08K5/01
    • B29C55/005B29C55/06B29K2023/06B29K2023/12B29K2091/00B29K2105/0038C08J5/18C08J2323/08C08L23/06C08L23/0815C08L23/10C08L2314/06C08L2666/06
    • [Object]Disclosed is to provide a process for producing a film by using a raw material comprising a polyethylene having a density of 900 to 980 kg/m3 or a polypropylene, whereby improving the productivity at the time of producing the film by a stretch molding. Further the film is obtained without impairing the optical characteristics and mechanical characteristics, which are intrinsic characteristics of polyethylene or polypropylene. [Solving Means]A process for producing a film by a stretch molding of a mixture comprising a polyethylene and a polyethylene wax, the polyethylene having a density of 900 to 980 kg/m3 and an MI of 0.01 to 100 g/10-minutes as measured at 190° C. and a testing load of 21.18 N in accordance with JIS K7210 or a polypropylene, and the polyethylene wax having a density of 890 to 980 kg/m3 and a number-average molecular weight (Mn) of 500 to 4,000 as measured by the gel permeation chromatography (GPC) and satisfying the relationship shown by the following equation (I). B≦0.0075×K  (I) (In the above formula (I), B represents the weight ratio (% by weight) of a component having a molecular weight of 20,000 or more in terms of polyethylene as measured by the gel permeation chromatography in the polyethylene wax, and K represents the melt viscosity (mPa·s) of the polyethylene wax at 140° C.)
    • 公开了通过使用密度为900〜980kg / m 3的聚乙烯或聚丙烯的原料制造膜的方法,由此通过拉伸成型提高膜的制造时的生产率 。 此外,在不损害作为聚乙烯或聚丙烯的固有特性的光学特性和机械特性的情况下获得膜。 本发明提供一种通过拉伸成型包含聚乙烯和聚乙烯蜡的混合物制造膜的方法,聚乙烯的密度为900至980kg / m 3,MI为0.01至100g / 10分钟,为 根据JIS K7210或聚丙烯在190℃下测定的试验负荷为21.18N,密度为890〜980kg / m 3,数均分子量(Mn)为500〜4000的聚乙烯蜡 通过凝胶渗透色谱法(GPC)测定,满足下述式(I)所示的关系。 <?in-line-formula description =“In-line Formulas”end =“lead”?> B <= 0.0075xK(I)<?in-line-formula description =“In-line Formulas”end =“tail” (上式(I)中,B表示通过聚乙烯蜡中的凝胶渗透色谱法测定的分子量为20,000以上的聚乙烯成分的重量比(重量%),K表示 表示聚乙烯蜡在140℃下的熔融粘度(mPa.s)