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    • 4. 发明申请
    • POLYMER COMPOSITION AND USE THEREOF
    • 聚合物组合物及其用途
    • US20100092712A1
    • 2010-04-15
    • US12570185
    • 2009-09-30
    • Tokudai OgawaHiroaki Matsuda
    • Tokudai OgawaHiroaki Matsuda
    • C08L45/00B32B1/00
    • C08G61/08A61J1/10C08G2261/3324C08G2261/3325C08G2261/612C08L45/00C08L65/00C08L2205/02Y10T428/13Y10T428/1303Y10T428/1352Y10T428/1359Y10T428/139Y10T428/1397C08L2666/04
    • A polymer composition includes (1) a crystalline norbornene-based polymer and (2) an amorphous alicyclic structure-containing polymer in a weight ratio of 90:10 to 50:50, the crystalline norbornene-based polymer (1) having a melting point of 110 to 145° C., an Mw measured by gel permeation chromatography of 50,000 to 200,000, and a ratio Mw/Mn of 1.5 to 10.0, and obtained by ring-opening polymerization of a polymerizable monomer mixture (1) containing 90 to 100 wt % of 2-norbornene and 0 to 10 wt % of a substituent-containing norbornene monomer, and hydrogenating the resulting polymer, and the amorphous alicyclic structure-containing polymer (2) having a Tg of 50° C. or more and not having a melting point, and obtained by polymerization of a polymerizable monomer mixture (2) containing a 2-norbornene compound and a dicyclopentadiene compound in an amount of 50 wt % or more and less than 90 wt % in total. A film obtained by molding the polymer composition has a steam permeability of 0.40 g/m2·day or less and a haze value of 20% or less when the film has a thickness of 100 μm. A medical container is obtained by molding the polymer composition.
    • 聚合物组合物包括(1)结晶降冰片烯系聚合物和(2)重量比为90:10〜50:50的无定形脂环结构聚合物,结晶性降冰片烯系聚合物(1)的熔点 为110〜145℃,通过凝胶渗透色谱法测定的Mw为50,000〜200,000,Mw / Mn为1.5〜10.0的Mw,通过含有90〜100的聚合性单体混合物(1)的开环聚合得到 重量%的2-降冰片烯和0〜10重量%的含取代基的降冰片烯单体,和氢化所得聚合物,以及Tg为50℃以上且不具有的无定形脂环式结构的聚合物(2) 熔点,通过聚合含有总计为50重量%以上且小于90重量%的2-降冰片烯化合物和二环戊二烯化合物的聚合性单体混合物(2)而获得。 通过模塑聚合物组合物获得的薄膜的厚度为100μm时,透水度为0.40g / m 2·天以下,雾度值为20%以下。 通过模制聚合物组合物获得医疗容器。