公开(公告)号：EP2514592A4

公开(公告)日：2014-04-02

申请号：EP10837723

申请日：2010-12-15

申请人： TEIJIN LTD

发明人： OYA TARO ,  ONO MITSUMASA ,  YOSHIDA TETSUO

IPC分类号： B32B27/36 ,  G02B5/30 ,  G02F1/1335

CPC分类号： B32B27/36 ,  B32B27/08 ,  G02B5/305 ,  G02B27/283 ,  G02F1/133536 ,  Y10T428/10 ,  Y10T428/1036 ,  Y10T428/1041 ,  Y10T428/105

公开(公告)号：EP2722695A4

公开(公告)日：2015-02-18

申请号：EP12800848

申请日：2012-06-14

申请人： TEIJIN LTD

发明人： OYA TARO ,  ONO MITSUMASA ,  YOSHIDA TETSUO

IPC分类号： G02B5/30 ,  G02F1/1335

CPC分类号： G02B5/3025 ,  G02B5/305 ,  G02F1/133536 ,  G02F2001/133545 ,  Y10T428/10 ,  Y10T428/1036

公开(公告)号：EP2264087A4

公开(公告)日：2012-08-29

申请号：EP09725124

申请日：2009-03-25

申请人： TEIJIN LTD

发明人： MIZUNO NAOMI ,  ONO MITSUMASA ,  YOSHIDA TETSUO

IPC分类号： C08J5/18 ,  B29C55/12 ,  B29C55/14 ,  B29K25/00 ,  B29L7/00 ,  H01M8/00 ,  H01M8/02 ,  H01M8/10

CPC分类号： B29C55/12 ,  B01D69/10 ,  B01D2325/24 ,  B29C55/143 ,  B29K2025/00 ,  C08J5/18 ,  C08J5/2206 ,  C08J2325/06 ,  H01M8/0289 ,  H01M2008/1095 ,  Y02E60/50

摘要： An object of the present invention is to provide a biaxially oriented film suitable as a reinforcing member for an electrolyte membrane of a polymer electrolyte fuel cell, the film having excellent hot water resistance in a high-temperature and high-humidity use environment and being capable of maintaining the reinforcing effect for a prolonged period of time. The invention resides in a biaxially oriented film for reinforcing an electrolyte membrane of a polymer electrolyte fuel cell, the film being characterized in that the film (i) contains syndiotactic polystyrene as a major component and (ii) has a Young's modulus in at least one of the machine direction and the transverse direction ranging from 4,500 to 8,000 MPa.

公开(公告)号：EP1022132A4

公开(公告)日：2002-08-07

申请号：EP99931457

申请日：1999-07-21

申请人： TEIJIN LTD

发明人： HANDA MAKOTO ,  ONO MITSUMASA

IPC分类号： B32B27/34 ,  G11B5/73 ,  G11B5/733 ,  G11B5/00 ,  G11B5/64

CPC分类号： B32B27/08 ,  B32B7/02 ,  B32B27/34 ,  B32B2307/518 ,  B32B2377/00 ,  B32B2429/02 ,  G11B5/733 ,  Y10S428/90 ,  Y10T428/24355 ,  Y10T428/2495 ,  Y10T428/258 ,  Y10T428/266 ,  Y10T428/31725

摘要： An aromatic polyamide film laminate comprising at least two biaxially oriented films formed of an aromatic polyamide, wherein (1) a film layer A, which is the outermost layer of the laminate, contains inorganic particles produced from hydroxides or carbonates of at least one metal of the groups Ia and IIa of the periodic table, the inorganic particles having an average particle diameter of 80 to 1,500 nm, and has a surface roughness (Ra ) of 1 to 20 nm, and (2) a film layer B, which is the layer opposite to the layer A of the laminate, has a surface roughness (Ra ) of 0.1 to 10 nm, (3) the surface roughness (Ra ) of the film layer B being smaller than the surface roughness (Ra ) of the film layer A by 1 nm or more. According to the present invention, there can be provided an aromatic polyamide film laminate suitable for use as a base film for a magnetic recording medium, which attains high abrasion resistance and high flatness at the same time while having excellent handling properties such as strength, slipperiness and winding property and which also exhibits excellent performance stability under a high-temperature and high-humidity environment; a production process therefor; and a metal-thin-film high-density magnetic recording medium and a multiple-coat high-density magnetic recording medium which have excellent electromagnetic conversion characteristics and are suitable for high-density recording by using the aromatic polyamide film laminate.

公开(公告)号：EP1003156A4

公开(公告)日：2000-05-24

申请号：EP99913647

申请日：1999-04-13

申请人： TEIJIN LTD

发明人： HANDA MAKOTO ,  ONO MITSUMASA ,  ASAI TAKEO

IPC分类号： G01Q60/00 ,  G11B5/73 ,  G11B5/733 ,  G11B5/738 ,  G11B5/704 ,  B32B27/34

CPC分类号： G11B5/733 ,  G11B5/73 ,  G11B5/738 ,  Y10S428/90 ,  Y10T428/24355 ,  Y10T428/24942 ,  Y10T428/25 ,  Y10T428/26

摘要： An aromatic polyamide film for high-density magnetic recording medium which is excellent in electromagnetic transducing characteristics even when used as a base film of a deposited metal thin film magnetic recording medium, suffers from few dropout, and enables production of a large-capacity magnetic recording medium. The film has both excellent surface flatness and excellent transportability especially useful for high-density magnetic recording medium and meets simultaneously two contrary characteristics: the ability of preventing troubles such as push-up by projections at the calendering step and good rollability.

公开(公告)号：EP0719636A4

公开(公告)日：1996-08-28

申请号：EP94921119

申请日：1994-07-19

申请人： TEIJIN LTD

发明人： ASAI TAKEO ,  HASEGAWA KINJI ,  ONO MITSUMASA

IPC分类号： B32B27/36 ,  B32B15/08

CPC分类号： B32B27/08 ,  B32B1/02 ,  B32B15/09 ,  B32B27/18 ,  B32B27/36 ,  B32B2307/718 ,  B32B2309/105 ,  B32B2367/00 ,  B32B2439/66 ,  Y10T428/1355 ,  Y10T428/24355 ,  Y10T428/24975 ,  Y10T428/25 ,  Y10T428/31786

摘要： A laminated polyester film comprising an aromatic copolyester layer having a surface roughness of 2 to 13 nm and a polyester layer having a surface roughness (Ra) of at least 15 nm. This laminated polyester film has improved impact resistance particularly at low temperatures and improved taste-retaining property while retaining the excellent moldability, heat resistance, retort sterilization resistance and flavor-retaining property possessed by copolyester films.