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1.发明授权
公开(公告)号：US5336079A
公开(公告)日：1994-08-09
申请号：US847586
申请日：1992-03-04
申请人： Iwao Okazaki , Koichi Abe , Hidehito Minamizawa , Takeo Fukuyama
发明人： Iwao Okazaki , Koichi Abe , Hidehito Minamizawa , Takeo Fukuyama
CPC分类号： G11B5/733 , B32B27/18 , Y10S428/91 , Y10T428/25 , Y10T428/254 , Y10T428/256 , Y10T428/257 , Y10T428/259 , Y10T428/31
摘要： Disclosed is a biaxially oriented laminated film having at least three layers which has excellent abrasion resistance and electromagnetic conversion property when the film is used as the base film of a magnetic recording media. The biaxially oriented laminated film comprises at least one outermost layer containing particles A, the particle density ratio at surface layer of the particles A is not less than 0.01, and the mean primary particle size D of the particles A and the thickness T of the outermost layer containing the particles A satisfies the equation; D.ltoreq.T.ltoreq.200D.
摘要翻译： 公开了当将该膜用作磁记录介质的基膜时，具有至少三层的双轴取向叠层膜，其具有优异的耐磨性和电磁转换性。 双轴取向叠层膜包含至少一个含有颗粒A的最外层，颗粒A的表层的颗粒密度比不小于0.01，颗粒A的平均一次粒径D和最外层的厚度T 包含颗粒A的层满足等式; D
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公开(公告)号：US5609949A
公开(公告)日：1997-03-11
申请号：US420704
申请日：1995-04-11
CPC分类号： C08J5/18 , C08K3/22 , B29K2995/0072 , C08J2367/02 , Y10T428/24983 , Y10T428/254 , Y10T428/256 , Y10T428/257 , Y10T428/259
摘要： A biaxially oriented polyester film having excellent scratch resistance and chipping resistance by the inclusion of particles (A) having an average primary particle diameter of 5-300 nm, an average degree of aggregation of 5-100 and a Mohs' hardness of 6-10 by the content of 0.01-5 wt. %. The scratch resistance and chipping resistance of the film can be further increased by the inclusion of particles (B) having an average particle diameter of 0.3-3 .mu.m, a Mohs' hardness smaller than that of particles (A) and/or non-incorporated particles.
摘要翻译： 通过包含平均一次粒径为5-300nm，平均聚集度为5〜100，莫氏硬度为6-10的粒子（A），具有优异的耐擦伤性和耐崩裂性的双轴取向聚酯膜 通过含量0.01-5wt。 ％。 通过包含平均粒径为0.3-3μm的颗粒（B），莫氏硬度小于颗粒（A）和/或非颗粒的颗粒（B），可以进一步提高膜的耐划伤性和耐崩裂性， 并入颗粒。
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公开(公告)号：US5458964A
公开(公告)日：1995-10-17
申请号：US104759
申请日：1993-08-12
申请人： Iwao Okazaki , Masahiro Kimura , Masatoshi Aoyama , Masaru Suzuki , Koichi Abe , Yukari Nakamori , Hidehito Minamizawa , Katsuya Okamoto , Hiroyuki Tanaka
发明人： Iwao Okazaki , Masahiro Kimura , Masatoshi Aoyama , Masaru Suzuki , Koichi Abe , Yukari Nakamori , Hidehito Minamizawa , Katsuya Okamoto , Hiroyuki Tanaka
CPC分类号： C08J5/18 , B32B27/20 , G11B5/7305 , G11B5/738 , C08J2367/02 , Y10S428/91 , Y10T428/25 , Y10T428/254 , Y10T428/257 , Y10T428/259 , Y10T428/31786
摘要： Disclosed is a biaxially oriented film and a laminated film containing specified organic particles at a content of 0.001 to 20% by weight. The strength when deformed by 10% (S.sub.10) of the organic particles is in the range of 3 to 30 kgf/mm.sup.2, the thermal decomposition temperature for causing 10% loss in weight thereof is not lower than 350.degree. C. The weight average diameter thereof is in the range of 0.005 to 5 .mu.m. Since the organic particles have a good affinity with the matrix resin of the film and a good thermal resistance and the hardness of the particles is appropriate, desired protrusions hardly chipped and having an appropriate hardness for hardly scratching a magnetic surface can be formed on a film surface easily and uniformly. Therefore, a film excellent in abrasion resistance and scratch resistance at a high running speed and excellent in running durability can be obtained, which is useful particularly as a base film of a magnetic tape.
摘要翻译： 公开了含有0.001〜20重量％的特定有机粒子的双轴取向膜和层叠膜。 当有机颗粒变形10％（S10）时的强度在3〜30kgf / mm 2的范围内，其重量减少10％的热分解温度不低于350℃。重量平均直径 为0.005〜5μm的范围。 由于有机颗粒与膜的基质树脂具有良好的亲和性，并且具有良好的耐热性，并且颗粒的硬度是合适的，因此可以在薄膜上形成难以切割并且具有难以刮擦磁性表面的适当硬度的所需突起 表面容易均匀。 因此，可以获得在高运行速度下具有优异的耐磨性和耐擦伤性的膜，并且可以获得特别用作磁带的基膜的运行耐久性优异的运行耐久性优异的膜。
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公开(公告)号：US5998004A
公开(公告)日：1999-12-07
申请号：US749781
申请日：1996-11-15
CPC分类号： C08J5/18 , C08K3/22 , B29K2995/0072 , C08J2367/02 , Y10T428/24983 , Y10T428/254 , Y10T428/256 , Y10T428/257 , Y10T428/259
摘要： A biaxially oriented polyester film having excellent scratch resistance and chipping resistance by the inclusion of particles (A) having an average primary particle diameter of 5-300 nm, an average degree of aggregation of 5-100 and a Mohs' hardness of 6-10 by the content of 0.01-5 wt. %. The scratch resistance and chipping resistance of the film can be further increased by the inclusion of particles (B) having an average particle diameter of 0.3-3 .mu.m, a Mohs' hardness smaller than that of particles (A) and/or non-incorporated particles.
摘要翻译： 通过包含平均一次粒径为5-300nm，平均聚集度为5〜100，莫氏硬度为6-10的粒子（A），具有优异的耐擦伤性和耐崩裂性的双轴取向聚酯膜 通过含量0.01-5wt。 ％。 通过包含平均粒径为0.3-3μm的颗粒（B），莫氏硬度小于颗粒（A）和/或非颗粒的颗粒（B），可以进一步提高膜的耐划伤性和耐崩裂性， 并入颗粒。
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公开(公告)号：US5284699A
公开(公告)日：1994-02-08
申请号：US996851
申请日：1992-12-21
CPC分类号： C08J5/18 , C08K3/22 , B29K2995/0072 , C08J2367/02 , Y10T428/24983 , Y10T428/254 , Y10T428/256 , Y10T428/257 , Y10T428/259
摘要： A biaxially oriented polyester film having excellent scratch resistance and chipping resistance by the inclusion of particles (A) having an average primary particle diameter of 5-300 nm, an average degree of aggregation of 5-100 and a Mohs' hardness of 6-10 by the content of 0.01-5 wt. %. The scratch resistance and chipping resistance of the film can be further increased by the inclusion of particles (B) having an average particle diameter of 0.3-3 .mu.m, a Mohs' hardness smaller than that of particles (A) and/or non-incorporated particles.
摘要翻译： 通过包含平均一次粒径为5-300nm，平均聚集度为5〜100，莫氏硬度为6-10的粒子（A），具有优异的耐擦伤性和耐崩裂性的双轴取向聚酯膜 通过含量0.01-5wt。 ％。 通过包含平均粒径为0.3-3（my）m的颗粒（B），莫氏硬度小于颗粒（A）和（或）的颗粒（B），可以进一步提高膜的抗划伤性和耐崩裂性 非并入颗粒。
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公开(公告)号：US4952449A
公开(公告)日：1990-08-28
申请号：US254320
申请日：1988-10-05
申请人： Iwao Okazaki , Koichi Abe , Shoji Nakajima , Kiyohiko Ito , Satoru Nishino , Hidehito Minamizawa
发明人： Iwao Okazaki , Koichi Abe , Shoji Nakajima , Kiyohiko Ito , Satoru Nishino , Hidehito Minamizawa
CPC分类号： C08J5/18 , B29C55/005 , G11B5/7305 , B29K2067/00 , B29K2105/16 , B29K2995/0072 , B29L2017/008 , C08J2367/02 , Y10T428/24372 , Y10T428/24405 , Y10T428/24413 , Y10T428/24421 , Y10T428/25 , Y10T428/31786
摘要： A biaxially oriented polyester film suited as a substrate for magnetic recording media. The film comprises a polyester and inert particles and has at least one surface with protrusions formed by the existence of the inert particles. The surface has a parameter of surface topography .sqroot.(.beta./.sigma.) of 0.1 to 0.7. The average distance between adjacent protrusions is not more than 20 um and the coefficient of friction of the surface and the parameter of surface topography satisfies the following equations (1) and (2): ##EQU1## wherein y is the coefficient of friction, .beta. is mean flatness of protrusions and .sigma. is standard deviation of height distribution of protrusions.
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公开(公告)号：US5532047A
公开(公告)日：1996-07-02
申请号：US297611
申请日：1994-08-29
申请人： Iwao Okazaki , Tohru Miyake , Koichi Abe , Keisuke Ohshima
发明人： Iwao Okazaki , Tohru Miyake , Koichi Abe , Keisuke Ohshima
CPC分类号： G11B5/738 , B32B27/36 , G11B5/733 , Y10S428/90 , Y10S428/91 , Y10T428/1041 , Y10T428/24355 , Y10T428/24372 , Y10T428/2495 , Y10T428/25 , Y10T428/256 , Y10T428/2989 , Y10T428/2993 , Y10T428/2995 , Y10T428/2996 , Y10T428/31786 , Y10T428/31797
摘要： Disclosed is a biaxially oriented, laminated polyester film having a lamination structure with at least two layers. At least one of the outermost layers of the film is a thin laminated layer A having a thickness of not more than 3 .mu.m. In the layer A, internally formed particles and specified agglomerated particles or mono-dispersed particles are present, or the mono-dispersed particles are present at a very small content. When the polyester film is used as a base film for magnetic recording media, the abrasion resistance of the film surface at a high speed can be greatly increased.
摘要翻译： 公开了具有至少两层的层叠结构的双轴取向层合聚酯膜。 膜的最外层中的至少一层是厚度不大于3μm的薄层叠层A. 在层A中，存在内部形成的颗粒和特定的附聚颗粒或单分散颗粒，或单分散颗粒以非常小的含量存在。 当聚酯膜用作磁记录介质的基膜时，可以大大提高膜表面在高速下的耐磨性。
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公开(公告)号：US5677034A
公开(公告)日：1997-10-14
申请号：US540904
申请日：1995-10-11
申请人： Iwao Okazaki , Tohru Miyake , Koichi Abe , Keisuke Ohshima
发明人： Iwao Okazaki , Tohru Miyake , Koichi Abe , Keisuke Ohshima
CPC分类号： G11B5/738 , B32B27/36 , G11B5/733 , Y10S428/90 , Y10S428/91 , Y10T428/1041 , Y10T428/24355 , Y10T428/24372 , Y10T428/2495 , Y10T428/25 , Y10T428/256 , Y10T428/2989 , Y10T428/2993 , Y10T428/2995 , Y10T428/2996 , Y10T428/31786 , Y10T428/31797
摘要： Disclosed is a biaxially oriented, laminated polyester film having a lamination structure with at least two layers. At least one of the outermost layers of the film is a thin laminated layer A having a thickness of not more than 3 .mu.m. In the layer A, internally formed particles and specified agglomerated particles or mono-dispersed particles are present, or the mono-dispersed particles are present at a very small content. When the polyester film is used as a base film for magnetic recording media, the abrasion resistance of the film surface at a high speed can be greatly increased.
摘要翻译： 公开了具有至少两层的层叠结构的双轴取向层合聚酯膜。 膜的最外层中的至少一层是厚度不大于3μm的薄层叠层A. 在层A中，存在内部形成的颗粒和特定的附聚颗粒或单分散颗粒，或单分散颗粒以非常小的含量存在。 当聚酯膜用作磁记录介质的基膜时，可以大大提高膜表面在高速下的耐磨性。
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公开(公告)号：US5389422A
公开(公告)日：1995-02-14
申请号：US940382
申请日：1992-09-03
申请人： Iwao Okazaki , Koichi Abe , Shoji Nakajima
发明人： Iwao Okazaki , Koichi Abe , Shoji Nakajima
CPC分类号： B32B27/20 , G11B5/733 , Y10T428/24355 , Y10T428/25 , Y10T428/265 , Y10T428/31786
摘要： Disclosed is a biaxially oriented laminated film comprising a film layer B whose major component is a thermoplastic resin B.sub.r, a thin film layer A laminated on at least one surface of the film layer B and whose major components are a thermoplastic resin A.sub.r and particles with a specified mean diameter contained therein at a specified content, and a skin layer C laminated on at least one surface of the laminated film layer A and film layer B and having a thickness of 1-300 nm. The particles form the desired protrusions on the film surface and the skin layer C can have various properties such as a good adhesive property with a magnetic layer, a good adhesive property with an ink or a good antistatic property without injuring the good scratch resistance, chipping resistance, chromatic S/N, etc., achieved by the desired protrusions formed by the particles.
摘要翻译： 公开了一种双轴取向层合膜，其包含主要成分为热塑性树脂Br的膜层B，层叠在膜层B的至少一个表面上的薄膜层A，其主要成分为热塑性树脂Ar， 以规定的含量包含在其中的规定的平均直径，以及层叠在层压膜层A和膜层B的至少一个表面上并具有1-300nm厚度的表皮层C. 颗粒在膜表面形成所需的突起，表皮层C可以具有各种性能，例如与磁性层的良好粘合性，与油墨的良好粘合性或良好的抗静电性，而不损害良好的耐刮擦性， 电阻，色度S / N等，通过由颗粒形成的期望的突起实现。
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公开(公告)号：US5266376A
公开(公告)日：1993-11-30
申请号：US632311
申请日：1990-12-21
申请人： Iwao Okazaki , Koichi Abe , Shoji Nakajima
发明人： Iwao Okazaki , Koichi Abe , Shoji Nakajima
CPC分类号： G11B5/7305 , G11B5/70 , Y10S428/90 , Y10T428/24355 , Y10T428/31786
摘要： A magnetic recording medium with excellent S/N ratio and durability is disclosed. The magnetic recording medium comprises a substrate film and a magnetic layer formed on at least one surface of the substrate film. The maximum depth of depressiones in the surface of the magnetic layer being larger than maximum height of peaks on the surface of the magnetic layer.
摘要翻译： 公开了具有优异S / N比和耐久性的磁记录介质。 磁记录介质包括基底膜和形成在基底膜的至少一个表面上的磁性层。 磁性层表面的最大凹陷深度大于磁性层表面上峰的最大高度。
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