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公开(公告)号：DE60118082T2
公开(公告)日：2006-08-24
申请号：DE60118082
申请日：2001-12-11
Applicant: TORAY INDUSTRIES
Inventor： KUBOTA AKIRA , ETO KENICHI , NAKAMORI YUKARI , TSUNEKAWA TETSUYA
Abstract: The present invention provides a polyester film, which is composed of a polyester resin and a polyimide resin, having superior oligomer-restraining property and dimensional stability. This polyester film also has improved surface conditions, that is, has a reduced number of projections on the surface, and hence, the polyester film shows superior electromagnetic conversion characteristics when used for magnetic recording media. In particular, this polyester film is effectively used for high-density magnetic recording media. This film is composed of a polyester resin and a thermoplastic resin other than a polyester resin, and has a number H1 of coarse projections 0.28 mu m or more in height of 0 to 100/100 cm on at least one surface of the polyester film and a number H2 of coarse projections 0.56 mu m or more in height of 0 to 10/100 cm on the same surface.
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公开(公告)号：MY140681A
公开(公告)日：2010-01-15
申请号：MYPI20015626
申请日：2001-12-11
Applicant: TORAY INDUSTRIES
Inventor： KUBOTA AKIRA , ETO KENICHI , NAKAMORI YUKARI , TSUNEKAWA TETSUYA
Abstract: THE PRESENT INVENTION PROVIDES A POLYESTER FILM, WHICH IS COMPOSED OF A POLYESTER RESIN AND A POLYMIDE RESIN, HAVING SUPERIOR OLIGOMER-RESTRAINING PROPERTY AND DIMENSIONAL STABILITY. THIS POLYESTER FILM ALSO HAS IMPROVED SURFACE CONDITIONS, THAT IS, HAS A REDUCED NUMBER OF PROJECTIONS ON THE SURFACE, AND HENCE, THE POLYESTER FILM SHOWS SUPERIOR ELECROMAGNETIC CONVERSION CHARACTERISTICS WHEN USED FOR MAGNETIC RECORDING MEDIA. IN PARTICULAR, THIS POLYESTER FILM IS EFFECTIVELY USED FOR HIGH-DENSITY MAGNETIC RECORDING MEDIA. THIS FILM IS COMPOSED OF A POLYESTER RESIN AND A THERMOPLASTIC RESIN OTHER THAN A POLYESTER RESIN, AND HAS A NUMBER H1 OF COARSE PROJECTIONS 0.28 µM OR MORE IN HEIGHT OF 0 TO 100/100 CM2 ON AT LEAST ONE SURFACE OF THE POLYESTER FILM AND A NUMBER H2 OF COARSE PROJECTIONS O.56 µM OR MORE IN HEIGHT OF 0 TO 10/100 CM2 ON THE SAME SURFACE.
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公开(公告)号：DE60118082D1
公开(公告)日：2006-05-11
申请号：DE60118082
申请日：2001-12-11
Applicant: TORAY INDUSTRIES
Inventor： KUBOTA AKIRA , ETO KENICHI , NAKAMORI YUKARI , TSUNEKAWA TETSUYA
Abstract: The present invention provides a polyester film, which is composed of a polyester resin and a polyimide resin, having superior oligomer-restraining property and dimensional stability. This polyester film also has improved surface conditions, that is, has a reduced number of projections on the surface, and hence, the polyester film shows superior electromagnetic conversion characteristics when used for magnetic recording media. In particular, this polyester film is effectively used for high-density magnetic recording media. This film is composed of a polyester resin and a thermoplastic resin other than a polyester resin, and has a number H1 of coarse projections 0.28 mu m or more in height of 0 to 100/100 cm on at least one surface of the polyester film and a number H2 of coarse projections 0.56 mu m or more in height of 0 to 10/100 cm on the same surface.
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公开(公告)号：AT320917T
公开(公告)日：2006-04-15
申请号：AT01129534
申请日：2001-12-11
Applicant: TORAY INDUSTRIES
Inventor： KUBOTA AKIRA , ETO KENICHI , NAKAMORI YUKARI , TSUNEKAWA TETSUYA
Abstract: The present invention provides a polyester film, which is composed of a polyester resin and a polyimide resin, having superior oligomer-restraining property and dimensional stability. This polyester film also has improved surface conditions, that is, has a reduced number of projections on the surface, and hence, the polyester film shows superior electromagnetic conversion characteristics when used for magnetic recording media. In particular, this polyester film is effectively used for high-density magnetic recording media. This film is composed of a polyester resin and a thermoplastic resin other than a polyester resin, and has a number H1 of coarse projections 0.28 mu m or more in height of 0 to 100/100 cm on at least one surface of the polyester film and a number H2 of coarse projections 0.56 mu m or more in height of 0 to 10/100 cm on the same surface.
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