公开(公告)号：US10793708B2

公开(公告)日：2020-10-06

申请号：US15315639

申请日：2015-07-30

申请人： MITSUI CHEMICALS, INC. ,  PRIME POLYMER CO., LTD.

发明人： Katsutoshi Ohta

IPC分类号： C08L23/12 ,  C08J5/18 ,  H01G4/18 ,  C08F4/6592 ,  C08F4/654 ,  C08F110/06 ,  H01G11/52 ,  H01G9/02 ,  C08F4/659

摘要： Provided are a propylene homopolymer composition for a capacitor film, which can provide a film with excellent high-temperature voltage resistance and excellent thin-film stretchability, a method for producing the same, and a capacitor film. The propylene homopolymer composition for a capacitor film contains 50 to 99% by mass of a propylene homopolymer (A1) having predetermined characteristics and 1 to 50% by mass of a propylene homopolymer (B1) having predetermined characteristics, and has (i) a melt flow rate (MFR) of 1.0 to 10.0 g/10 min and (ii) a chlorine content of 2 ppm by mass or less.

公开(公告)号：US10011693B2

公开(公告)日：2018-07-03

申请号：US14438599

申请日：2013-10-23

申请人： Prime Polymer Co., Ltd.

发明人： Yoshio Yanagishita ,  Chikara Satou ,  Satoshi Tamura ,  Katsutoshi Ohta

IPC分类号： B01D71/26 ,  C08J7/00 ,  H01G11/52 ,  H01G9/02 ,  H01M2/16 ,  B29C55/02 ,  C08J5/18 ,  C08F110/06 ,  C08F112/06 ,  H01M10/0525 ,  B29K23/00

CPC分类号： C08J5/18 ,  B01D71/26 ,  B29C55/005 ,  B29C55/02 ,  B29C55/065 ,  B29K2023/12 ,  B29K2105/041 ,  B29L2031/3468 ,  C08F110/06 ,  C08J2323/12 ,  H01G9/02 ,  H01G11/52 ,  H01M2/1653 ,  H01M10/0525 ,  Y02E60/13 ,  C08F2500/04 ,  C08F2500/26 ,  C08F4/6543 ,  C08F4/651 ,  C08F4/6492 ,  C08F4/6465

摘要： [Problem] To provide polypropylene for a microporous film having excellent heat resistance and strength. [Solution] Polypropylene for a microporous film satisfying the following requirements (1) and (2): (1) the weight-average molecular weight (Mw) value, as determined by gel permeation chromatography (GPC), is not less than 100,000 but less than 800,000, the value (Mw/Mn) obtained by dividing the weight-average molecular weight by the number-average molecular weight is more than 7.0 but not more than 12.0, and the value (Mz/Mw) obtained by dividing the Z-average molecular weight by the weight-average molecular weight is not less than 3.8 but not more than 9.0, and (2) the mesopentad fraction, as measured by 13C-NMR (nuclear magnetic resonance method), is not less than 95.5%.

公开(公告)号：US10800909B2

公开(公告)日：2020-10-13

申请号：US15315622

申请日：2015-07-30

申请人： MITSUI CHEMICALS, INC. ,  PRIME POLYMER CO., LTD.

发明人： Katsutoshi Ohta

IPC分类号： C08L23/12 ,  C08J5/18 ,  H01G4/18 ,  C08F4/6592 ,  C08F4/654 ,  C08F110/06 ,  C08F4/659

摘要： Provided are a propylene homopolymer composition for a capacitor film, from which a thin film can be easily produced and which can provide a film with excellent high-temperature voltage resistance, a method for producing the same, and a capacitor film. The propylene homopolymer composition for a capacitor film contains 1% by mass or more and less than 50% by mass of a propylene homopolymer (A1) having predetermined characteristics and more than 50% by mass and 99% by mass or less of a propylene homopolymer (B1) having predetermined characteristics, and has (i) a melt flow rate (MFR) of 1.0 to 10.0 g/10 min and (ii) a chlorine content of 2 ppm by mass or less.

公开(公告)号：US20150274908A1

公开(公告)日：2015-10-01

申请号：US14438599

申请日：2013-10-23

申请人： PRIME POLYMER CO., LTD.

发明人： Yoshio Yanagishita ,  Chikara Satou ,  Satoshi Tamura ,  Katsutoshi Ohta

IPC分类号： C08J5/18 ,  B01D71/26 ,  B29C55/02 ,  H01M2/16

CPC分类号： C08J5/18 ,  B01D71/26 ,  B29C55/02 ,  B29K2023/12 ,  C08F110/06 ,  C08J2323/12 ,  H01G9/02 ,  H01G11/52 ,  H01M2/1653 ,  H01M10/0525 ,  Y02E60/13 ,  C08F2500/04 ,  C08F2500/26 ,  C08F4/6543 ,  C08F4/651 ,  C08F4/6492 ,  C08F4/6465

摘要： [Problem] To provide polypropylene for a microporous film having excellent heat resistance and strength. [Solution] Polypropylene for a microporous film satisfying the following requirements (1) and (2): (1) the weight-average molecular weight (Mw) value, as determined by gel permeation chromatography (GPC), is not less than 100,000 but less than 800,000, the value (Mw/Mn) obtained by dividing the weight-average molecular weight by the number-average molecular weight is more than 7.0 but not more than 12.0, and the value (Mz/Mw) obtained by dividing the Z-average molecular weight by the weight-average molecular weight is not less than 3.8 but not more than 9.0, and (2) the mesopentad fraction, as measured by 13C-NMR (nuclear magnetic resonance method), is not less than 95.5%.

摘要翻译： 提供具有优异的耐热性和强度的微孔膜的聚丙烯。 [溶液]用于满足以下要求（1）和（2）的微孔膜的聚丙烯：（1）通过凝胶渗透色谱法（GPC）测定的重均分子量（Mw）值不小于100,000但 小于80万，将重均分子量除以数均分子量得到的值（Mw / Mn）大于7.0但不大于12.0，并且通过将Z除以得到的值（Mz / Mw） - 平均分子量不小于3.8，但不大于9.0，（2）通过13 C-NMR（核磁共振法）测得的薄荷分数不小于95.5％。