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

IPC分类号： B32B27/18 ,  G11B5/64 ,  G11B5/733 ,  B32B5/16

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

公开(公告)号：US5609949A

公开(公告)日：1997-03-11

申请号：US420704

申请日：1995-04-11

申请人： Satoru Nishino ,  Koichi Abe ,  Takeo Fukuyama ,  Hidehito Minamizawa

发明人： Satoru Nishino ,  Koichi Abe ,  Takeo Fukuyama ,  Hidehito Minamizawa

IPC分类号： B32B5/16 ,  B32B7/02 ,  C08J5/18 ,  C08K3/22

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。

公开(公告)号：US5998004A

公开(公告)日：1999-12-07

申请号：US749781

申请日：1996-11-15

申请人： Satoru Nishino ,  Koichi Abe ,  Takeo Fukuyama ,  Hidehito Minamizawa

发明人： Satoru Nishino ,  Koichi Abe ,  Takeo Fukuyama ,  Hidehito Minamizawa

IPC分类号： B32B5/16 ,  B32B7/02 ,  C08J5/18 ,  C08K3/22

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。

公开(公告)号：US5284699A

公开(公告)日：1994-02-08

申请号：US996851

申请日：1992-12-21

申请人： Satoru Nishino ,  Koichi Abe ,  Takeo Fukuyama ,  Hidehito Minamizawa

发明人： Satoru Nishino ,  Koichi Abe ,  Takeo Fukuyama ,  Hidehito Minamizawa

IPC分类号： C08J5/18 ,  C08K3/22 ,  B32B7/02 ,  B32B5/16

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。

公开(公告)号：US4410582A

公开(公告)日：1983-10-18

申请号：US327202

申请日：1981-12-03

申请人： Kenji Tsunashima ,  Toshiya Yoshii ,  Takeo Fukuyama

发明人： Kenji Tsunashima ,  Toshiya Yoshii ,  Takeo Fukuyama

IPC分类号： B32B27/32 ,  C09J7/02 ,  B32B7/02

CPC分类号： B32B27/32 ,  C09J7/0296 ,  B29K2995/0072 ,  C09J2201/162 ,  Y10S428/91 ,  Y10T428/24942 ,  Y10T428/24967 ,  Y10T428/25 ,  Y10T428/2848 ,  Y10T428/31913

摘要： A three-layered laminated film consisting essentially of (A) a center layer consisting of a crystalline low molecular weight polyolefin having an intrinsic viscosity of 0.5 to 1.4 and (B) two surface layers disposed on both sides of the center layer and each consisting of a crystalline polyolefin (b) having a melting point higher than that of the crystalline low molecular weight polyolefin (a), whereby the thickness of the center layer (A) accounts for 30 to 98%, especially 50 to 85%, of the total thickness of the laminated film. The invention also relates to applications of the laminated film.The laminated film of the invention has excellent finger-tearability and high toughness but little tendency to curl, to whiten when torn, to get turbid and fibrillated, and so forth. The laminated film is effectively used as an adhesive tape or other applications.

摘要翻译： 一种三层叠层膜，其基本上由（A）由特性粘度为0.5〜1.4的结晶低分子量聚烯烃构成的中心层和（B）设置在中心层两侧的两个表面层组成的中心层， 熔点高于结晶低分子量聚烯烃（a）的结晶聚烯烃（b），其中心层（A）的厚度占总重量的30〜98％，特别是50〜85％ 层压膜的厚度。 本发明还涉及层压膜的应用。 本发明的层压膜具有优异的手指撕裂性和高韧性，但是几乎没有卷曲倾向，在撕裂时变白，变得混浊和原纤化等。 层压膜有效地用作粘合带或其他应用。