公开(公告)号：US20120010318A1

公开(公告)日：2012-01-12

申请号：US13256622

申请日：2010-03-17

申请人： Noriko Tan ,  Satoshi Tamura

发明人： Noriko Tan ,  Satoshi Tamura

IPC分类号： C08F110/06 ,  C08J3/28 ,  C08F2/46 ,  B29C55/12

CPC分类号： H01G4/18 ,  C08L23/12 ,  C08L2312/00 ,  C08L2312/06 ,  Y02T10/7022

摘要： A polypropylene for a film capacitor or a polypropylene sheet for a film capacitor which exhibits excellent stretchability when stretched into a film and provides a film having high breakdown voltage and small thermal shrinkage ratio, and which is suitable for a polypropylene film for a film capacitor and a film capacitor comprising the film.The polypropylene for a film capacitor of the present invention is obtained by irradiating a propylene homopolymer with a radiation with an absorbed dose of 0.1 to 500 kGy, the propylene homopolymer having (1) a melt flow rate (MFR) within a range of 1 to 10 g/10 min as determined at 230° C. under a load of 2.16 kg in accordance with ASTM D1238, (2) an isotactic pentad fraction (mmmm fraction) of not less than 94% as determined using 13C-NMR, (3) an ash amount of not more than 30 ppm as obtained by completely burning the propylene homopolymer in air, and (4) a chlorine amount of not more than 10 ppm as determined by ion chromatography.

摘要翻译： 用于薄膜电容器的聚丙烯或用于薄膜电容器的聚丙烯薄片，其在拉伸成膜时呈现优异的拉伸性，并提供具有高击穿电压和小热收缩率的薄膜，并且适用于薄膜电容器用聚丙烯薄膜 包括该薄膜的薄膜电容器。 本发明的薄膜电容器用聚丙烯通过用吸收剂量为0.1〜500kGy的辐射照射丙烯均聚物，所述丙烯均聚物的熔融流动速率（MFR）为1〜 （2）使用13 C-NMR测定的等于或小于94％的全同立构五单元组分数（mmmm分数），（3），（3）所示，在230℃，2.16kg负荷下， ）通过在空气中完全燃烧丙烯均聚物得到的灰分量不大于30ppm，（4）通过离子色谱测定的氯量不大于10ppm。

公开(公告)号：US09449761B2

公开(公告)日：2016-09-20

申请号：US13256622

申请日：2010-03-17

申请人： Noriko Tan ,  Satoshi Tamura

发明人： Noriko Tan ,  Satoshi Tamura

IPC分类号： H01G4/18 ,  C08J3/28 ,  C08L23/12

CPC分类号： H01G4/18 ,  C08L23/12 ,  C08L2312/00 ,  C08L2312/06 ,  Y02T10/7022

摘要： A polypropylene for a film capacitor or a polypropylene sheet for a film capacitor which exhibits excellent stretchability when stretched into a film and provides a film having high breakdown voltage and small thermal shrinkage ratio, and which is suitable for a polypropylene film for a film capacitor and a film capacitor comprising the film.The polypropylene for a film capacitor of the present invention is obtained by irradiating a propylene homopolymer with a radiation with an absorbed dose of 0.1 to 500 kGy, the propylene homopolymer having (1) a melt flow rate (MFR) within a range of 1 to 10 g/10 min as determined at 230° C. under a load of 2.16 kg in accordance with ASTM D1238, (2) an isotactic pentad fraction (mmmm fraction) of not less than 94% as determined using 13C-NMR, (3) an ash amount of not more than 30 ppm as obtained by completely burning the propylene homopolymer in air, and (4) a chlorine amount of not more than 10 ppm as determined by ion chromatography.

摘要翻译： 本发明的薄膜电容器用聚丙烯通过用吸收剂量为0.1〜500kGy的辐射照射丙烯均聚物，所述丙烯均聚物的熔融流动速率（MFR）为1〜 （2）使用13 C-NMR测定的等于或小于94％的全同立构五单元组分数（mmmm分数），（3），（3）所示，在230℃，2.16kg负荷下， ）通过在空气中完全燃烧丙烯均聚物得到的灰分量不大于30ppm，（4）通过离子色谱测定的氯量不大于10ppm。