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公开(公告)号：DE602004015730D1
公开(公告)日：2008-09-25
申请号：DE602004015730
申请日：2004-02-04
Applicant: TORAY INDUSTRIES
Inventor： ONO MASAAKI , FUKATA KAZUYOSHI , YAGI MASAHIRO
Abstract: A polyester film for recording medium, having one major surface thereof provided with a coating layer containing fine particles of 5 to 60 nm diameter and an organic compound, wherein the number of fine surface projections existing on the surface of the coating layer is in the range of 3 million to 100 million/mm , and the number of surface defects of 120 nm or greater height attributed to foreign matter contained in the film is 30/100 cm or less, and wherein the polyester contains a titanium compound substantially not having any particle diameter. Thus, there are provided a magnetic recording tape for digital data recording that can reduce dropouts and excels in durability, and further provided a polyester film that is suitable as a base film thereof.
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公开(公告)号：EP1594126A4
公开(公告)日：2006-04-19
申请号：EP04708015
申请日：2004-02-04
Applicant: TORAY INDUSTRIES
Inventor： ONO MASAAKI , FUKATA KAZUYOSHI , YAGI MASAHIRO
CPC classification number: B32B27/36 , B32B15/09 , B32B2307/208 , B32B2367/00 , B32B2429/02 , C08J7/047 , C08J2367/02 , G11B5/733 , Y10T428/24405
Abstract: A polyester film for recording medium, having one major surface thereof provided with a coating containing fine particles of 5 to 60 nm diameter and an organic compound, wherein the number of fine surface projections existing on the coating surface is in the range of 3 million to 100 million /mm2, and the number of surface defects of 120 nm or greater height attributed to foreign matter contained in the film is 30 /100 cm2 or less, and wherein the polyester contains a titanium compound substantially not having any particle diameter. Thus, there are provided a magnetic recording tape for digital data recording that can reduce dropouts and excels in durability, and further provided a polyester film that is suitable as a base film thereof.
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