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    Magnetic tape
    11.
    发明授权
    Magnetic tape 失效
    磁带

    公开(公告)号：US5316823A

    公开(公告)日：1994-05-31

    申请号：US833924

    申请日：1992-02-12

    申请人： Masami Etchu ,  Hisashi Hamano ,  Masahiro Hosoi ,  Yasuhiro Saeki

    发明人： Masami Etchu ,  Hisashi Hamano ,  Masahiro Hosoi ,  Yasuhiro Saeki

    IPC分类号： G11B5/78 ,  B32B27/36 ,  C09D5/23 ,  C09D7/12 ,  G11B5/73 ,  G11B5/66 ,  B32B27/06

    CPC分类号： G11B5/7305 ,  Y10S428/90 ,  Y10T428/24355 ,  Y10T428/31786

    摘要： A magnetic tape for audio cassettes wherein a magnetic layer is provided on base film characterized in that the a base film, is biaxially oriented polyethylene-2,6-naphthalate film having a Young's modulus in the longitudinal direction of 850 Kg/mm.sup.2 or more, a Young's modulus in the transverse direction of 550 Kg/mm.sup.2 or more a surface roughness Ra in the range of 0.015 to 0.040 .mu.m, and a thermal shrinkage rate in the longitudinal direction of 0.3% or less in a case where it was held at a temperature of 100.degree. C. for 1 hour.A magnetic tape for audio cassettes is provided which is capable of long-time recording and wherein deterioration of magnetic characteristics does not easily occur in use, storage and the like at a high temperature, for example in the open during summer or in cars, compared to conventional ones.

    摘要翻译： 一种用于音频盒的磁带，其中在基膜上提供磁性层，其特征在于，所述基膜是长度方向的杨氏模量为850Kg / mm 2以上的双轴取向的聚2,6-萘二甲酸乙二醇酯膜， 横向的杨氏模量为550Kg / mm 2以上，表面粗糙度Ra为0.015〜0.040μm，纵向的热收缩率为0.3％以下，在将其保持在 温度为100℃1小时。 提供了一种用于音频盒的磁带，其能够进行长时间记录，并且在高温下（例如在夏季或汽车中的打开状态）下，在使用，存储等中不容易发生磁特性的劣化，比较 到常规的。

    Biaxially oriented polyester film
    12.
    发明授权
    Biaxially oriented polyester film 失效
    双轴取向聚酯薄膜

    公开(公告)号：US5731071A

    公开(公告)日：1998-03-24

    申请号：US503032

    申请日：1995-07-17

    申请人： Masami Etchu ,  Masahiro Hosoi ,  Masanori Nishiyama ,  Yasuhiro Saeki ,  Hisashi Hamano

    发明人： Masami Etchu ,  Masahiro Hosoi ,  Masanori Nishiyama ,  Yasuhiro Saeki ,  Hisashi Hamano

    IPC分类号： B29C55/12 ,  C08J5/18 ,  B32B27/00 ,  B32B27/06 ,  B32B27/36 ,  C08G63/189

    CPC分类号： C08J5/18 ,  B29C55/12 ,  B29K2067/00 ,  C08J2367/02 ,  Y10S428/91 ,  Y10T428/31786

    摘要： A biaxially oriented polyester film which has excellent resistances to dry heat deterioration and wet heat deterioration, which can withstand the use in an atmosphere of relatively high moisture content, and which is useful, for example, as an electrical insulating film, a film for transparent electrode, a film for absorption of electromagnetic wave (e.g. a film used as an inspection window of microwave oven) and a reflection film. This polyester contains �ethylene-2,6-naphthalenedicarboxylate as the main recurring unit.! 99.5 to 95 mole % of ethylene-2,6-naphthalenedicarboxylate and 0.5 to 5 mole % of ethylene-2,7-naphthalenedicarboxylate and has a density of 1.355 to 1.370 g/cm.sup.3 and an intrinsic viscosity of 0.62 to 0.90. The polyester film has an amount of terminal carboxyl in the polyester of 40 eg/10.sup.6 g or less and an amount of oligomers of 2.0 mg/m.sup.2 film or less.

    摘要翻译： 一种双轴取向聚酯薄膜，其具有优异的干热劣化和湿热劣化性，其可以承受在较高含水量的气氛中的使用，并且其可用于例如电绝缘膜，透明膜 电极，用于吸收电磁波的膜（例如用作微波炉的检查窗的膜）和反射膜。 该聚酯含有[乙烯-2,6-萘二甲酸酯作为主要重复单元] 99.5-95摩尔％的乙烯-2,6-萘二羧酸酯和0.5-5摩尔％的乙烯-2,7-萘二甲酸酯，并且具有 1.355〜1.370g / cm 3，特性粘度为0.62〜0.90。 聚酯薄膜的聚酯中的末端羧基的量为40，例如/ 106g以下，低聚物的量为2.0mg / m 2以下。

    Biaxially oriented film of polyethylene-2,6-naphthalenedicarboxylate
    13.
    发明授权
    Biaxially oriented film of polyethylene-2,6-naphthalenedicarboxylate 失效
    聚2,6-萘二甲酸乙二酯双轴取向薄膜

    公开(公告)号：US5618609A

    公开(公告)日：1997-04-08

    申请号：US359892

    申请日：1994-12-20

    申请人： Takao Chujo ,  Masanori Nishiyama ,  Hisashi Hamano

    发明人： Takao Chujo ,  Masanori Nishiyama ,  Hisashi Hamano

    IPC分类号： B29C55/14 ,  C08J5/18 ,  C08G63/02 ,  C08G63/18

    CPC分类号： C08J5/18 ,  B29C55/143 ,  B29K2067/00 ,  B29K2995/0072 ,  C08J2367/02 ,  Y10T428/24355 ,  Y10T428/24372

    摘要： A biaxially oriented film of a polyethylene-2,6-naphthalenedicarboxylate, which (1) has a Young's modulus of at least 600 kg/mm.sup.2 in the transverse direction and a Young's modulus of at least 500 kg/mm.sup.2 in the longitudinal direction, the Young's modulus in the transverse direction being greater than the Young's modulus in the longitudinal direction, (2) satisfies the following relationships between an elongation S.sub.T (%) in the transverse direction per kg/mm.sup.2 of a load at 120.degree. C. and the Young's modulus Y.sub.T (kg/mm.sup.2) in the transverse direction,-0.001Y.sub.T +0.89

    摘要翻译： 聚乙烯-2,6-萘二甲酸酯的双轴取向膜，（1）横向的杨氏模量至少为600kg / mm2，纵向的杨氏模量为至少500kg / mm2， 横向的杨氏模量大于纵向的杨氏模量，（2）满足在120℃的载荷下的横向上的伸长率ST（％）/ kg / mm2与杨氏模量 当YT为1200kg / mm2以上时，横向的模量YT（kg / mm2）为-0.001YT + 0.89

    Biaxially oriented unidirectionally long polyethylene-2, 6-naphthalenedicarboxylate film
    15.
    发明授权
    Biaxially oriented unidirectionally long polyethylene-2, 6-naphthalenedicarboxylate film 失效
    双轴取向单向长聚乙烯-2,6-萘二甲酸酯薄膜

    公开(公告)号：US5470665A

    公开(公告)日：1995-11-28

    申请号：US414137

    申请日：1995-03-30

    申请人： Hisashi Hamano ,  Masahiro Hosoi ,  Ieyasu Kobayshi ,  Yasuhiro Saeki

    发明人： Hisashi Hamano ,  Masahiro Hosoi ,  Ieyasu Kobayshi ,  Yasuhiro Saeki

    IPC分类号： B29C55/12 ,  B29K67/00 ,  B29L7/00 ,  C08J5/18 ,  G11B5/73 ,  B32B27/06 ,  B32B27/36

    CPC分类号： C08J5/18 ,  G11B5/73 ,  C08J2367/02 ,  Y10S428/91 ,  Y10T428/24355 ,  Y10T428/265 ,  Y10T428/31681 ,  Y10T428/31786

    摘要： Provided is a biaxially oriented, unidirectionally long polyethylene-2,6-naphthalenedicarboxylate film having the following characteristic properties;(A) both the Young's modulus in the longitudinal direction and the Young's modulus in the transverse direction are at least 600 kg/mm.sup.2, and the Young's modulus in the longitudinal direction is greater than the Young's modulus in the transverse direction,(B) the heat shrinkage factor in the transverse direction when the film has been treated under no load at 105.degree. C. for 30 minutes is at least 1%, and(C) the surface roughness Ra of one surface of the film is up to 5 nm, anda magnetic recording tape obtained by forming a thin magnetic metal film on the above film undergoes no curling, has high coercive force, has excellent electromagnetic conversion characteristic and permits high-density recording for a long period of time.

    摘要翻译： 本发明提供具有以下特征的双轴取向单向长聚乙烯-2,6-萘二甲酸酯薄膜; （A）长度方向的杨氏模量和横向的杨氏模量均为600kg / mm2以上，纵向的杨氏模量大于横向的杨氏模量，（B） 当薄膜在无负载下在105℃下处理30分钟时，横向的热收缩系数至少为1％，（C）薄膜的一个表面的表面粗糙度Ra达5nm， 并且通过在上述膜上形成薄磁性金属膜而获得的磁记录带不会发生卷曲，具有高的矫顽力，具有优异的电磁转换特性并且允许长时间的高密度记录。

    Oriented polyester film
    16.
    发明授权
    Oriented polyester film 失效
    定向聚酯薄膜

    公开(公告)号：US5352534A

    公开(公告)日：1994-10-04

    申请号：US203923

    申请日：1994-03-01

    申请人： Hisashi Hamano ,  Masahiro Hosoi ,  Masanori Nishiyama ,  Yasuhiro Saeki

    发明人： Hisashi Hamano ,  Masahiro Hosoi ,  Masanori Nishiyama ,  Yasuhiro Saeki

    IPC分类号： C08G63/185 ,  C08G63/672 ,  C08J5/18 ,  H01B3/42 ,  B32B27/36

    CPC分类号： C08J5/18 ,  C08G63/185 ,  C08G63/672 ,  H01B3/422 ,  C08J2367/02 ,  Y10T428/31786

    摘要： An oriented polyester film (A) which comprises modified polyethylene-2,6-naphthalenedicarboxylate containing a 4,4'-diphenyldicarboxylic acid component and having a heat of crystallization of 16 to 25.5 Joule/g, and (B) which is biaxially oriented; and an oriented polyester film (A') which comprises modified polyethylene-2,6-naphthalenedicarboxylate containing of a glycol component derived from a compound represented by the following formula, ##STR1## wherein each of n and m is independently a positive number of 1 to 9 as an average, provided that m+n equals 2 to 9 as an average, and having a heat of crystallization of 6 to 20 Joule/g, and (B) which is biaxially oriented. These films are useful as a base film for a magnetic recording tape or as an electric insulation film.

    摘要翻译： 一种定向聚酯膜（A），其包含含有4,4'-二苯基二羧酸组分的改性聚乙烯-2,6-萘二甲酸酯，结晶热为16-25.5焦耳/克，（B）为双轴取向; 和含有衍生自下式表示的化合物的二醇成分的改性聚乙烯-2,6-萘二甲酸酯的取向聚酯膜（A'），其中n和m各自独立地为1的正数 平均值为9，条件是m + n平均为2〜9，结晶热为6〜20焦耳/克，（B）为双轴取向。 这些膜可用作磁记录带或电绝缘膜的基膜。

    Biaxially oriented, unidirectionally long polyethylene-2,6-naphthalenedicarboxylate film
    18.
    发明授权
    Biaxially oriented, unidirectionally long polyethylene-2,6-naphthalenedicarboxylate film 失效
    双轴取向，单向长度聚乙烯-2,6-萘二甲酸酯薄膜

    公开(公告)号：US5677033A

    公开(公告)日：1997-10-14

    申请号：US453774

    申请日：1995-05-30

    申请人： Hisashi Hamano ,  Masahiro Hosoi ,  Ieyasu Kobayshi ,  Yasuhiro Saeki

    发明人： Hisashi Hamano ,  Masahiro Hosoi ,  Ieyasu Kobayshi ,  Yasuhiro Saeki

    IPC分类号： G11B5/73 ,  B32B27/36 ,  B32B15/04 ,  G11B5/66 ,  G11B5/70

    CPC分类号： G11B5/73 ,  Y10T428/24355 ,  Y10T428/265 ,  Y10T428/31786

    摘要： Provided is a biaxially oriented, unidirectionally long polyethylene-2,6-naphthalenedicarboxylate film having the following characteristic properties; (A) both the Young's modulus in the longitudinal direction and the Young's modulus in the transverse direction are at least 600 kg/mm.sup.2, and the Young's modulus in the longitudinal direction is greater than the Young's modulus in the transverse direction, (B) the heat shrinkage factor in the transverse direction when the film has been treated under no load at 105.degree. C. for 30 minutes is at least 1%, and (C) the surface roughness Ra of one surface of the film is up to 5 nm, and a magnetic recording tape obtained by forming a thin magnetic metal film on the above film undergoes no curling, has high coercive force, has excellent electromagnetic conversion characteristic and permits high-density recording for a long period of time.

    摘要翻译： 本发明提供具有以下特征的双轴取向单向长聚乙烯-2,6-萘二甲酸酯薄膜; （A）长度方向的杨氏模量和横向的杨氏模量均为600kg / mm2以上，纵向的杨氏模量大于横向的杨氏模量，（B） 当薄膜在无负载下在105℃下处理30分钟时，横向的热收缩系数至少为1％，（C）薄膜的一个表面的表面粗糙度Ra达5nm， 并且通过在上述膜上形成薄磁性金属膜而获得的磁记录带不会发生卷曲，具有高的矫顽力，具有优异的电磁转换特性并且允许长时间的高密度记录。

    Biaxially oriented, unidirectionally long polyethylene-2,6-naphthalate film and magnetic tape therefrom
    19.
    发明授权
    Biaxially oriented, unidirectionally long polyethylene-2,6-naphthalate film and magnetic tape therefrom 失效
    双轴取向的单向长的聚2,6-萘二甲酸乙二醇酯薄膜和磁带

    公开(公告)号：US5415930A

    公开(公告)日：1995-05-16

    申请号：US181377

    申请日：1994-01-14

    申请人： Masami Etchu ,  Hisashi Hamano ,  Masahiro Hosoi ,  Yasuhiro Saeki

    发明人： Masami Etchu ,  Hisashi Hamano ,  Masahiro Hosoi ,  Yasuhiro Saeki

    IPC分类号： B29C55/14 ,  C08J5/18 ,  C08K3/26 ,  C08K3/36 ,  G11B5/733 ,  B32B5/16 ,  B32B27/36

    CPC分类号： C08J5/18 ,  B29C55/14 ,  C08K3/26 ,  C08K3/36 ,  G11B5/733 ,  B29K2067/00 ,  B29K2105/16 ,  C08J2367/02 ,  Y10S428/90 ,  Y10T428/25 ,  Y10T428/31 ,  Y10T428/31786

    摘要： A biaxially oriented, unidirectionally long polyethylene-2,6-naphthalate film,(A) which contains(a) 0.05 to 0.4% by weight of first inert solid particles having an average particle diameter of 0.05 to 0.3 .mu.m, and(b) 0.005 to 0.05% by weight of second inert solid particles having an average particle diameter of 0.3 to 1.0 .mu.m, this average particle diameter being greater than the average particle diameter of the first inert solid particles by at least 0.2 .mu.m, wherein:(B) the Young's modulus in the length direction is at least 650 kg/mm.sup.2, the Young's modulus in the width direction is at least 600 kg/mm.sup.2, the Young's modulus in the length direction is greater than the Young's modulus in the width direction,(C) the heat shrinkage factor in the length direction in heat treatment at 70.degree. C. for 1 hour under no load is not more than 0.08%, and(D) the surface roughness, Ra, is 3 to 10 nm; and a magnetic tape obtained therefrom.

    摘要翻译： 一种双轴取向的单向长度聚乙烯-2,6-萘二甲酸酯膜（A），其含有（a）0.05〜0.4重量％的平均粒径为0.05〜0.3μm的第一惰性固体颗粒，（b） 0.005〜0.05重量％的平均粒径为0.3〜1.0μm的第二惰性固体颗粒，该平均粒径比第一惰性固体颗粒的平均粒径大至少0.2μm，其中：（ B）长度方向的杨氏模量为至少650kg / mm2，宽度方向的杨氏模量为600kg / mm2以上，长度方向的杨氏模量大于宽度方向的杨氏模量， （C）无负载下70℃热处理1小时长度方向的热收缩率不大于0.08％，（D）表面粗糙度Ra为3〜10nm; 和从其获得的磁带。