公开(公告)号：US5556691A

公开(公告)日：1996-09-17

申请号：US186585

申请日：1994-01-26

申请人： Masami Etchu ,  Hirofumi Murooka ,  Kei Mizutani ,  Makoto Handa

发明人： Masami Etchu ,  Hirofumi Murooka ,  Kei Mizutani ,  Makoto Handa

IPC分类号： B32B27/36 ,  G11B5/64 ,  G11B5/738 ,  B32B5/16

CPC分类号： G11B5/656 ,  B32B27/36 ,  G11B5/738 ,  B29K2995/0072 ,  Y10S428/91 ,  Y10T428/24355 ,  Y10T428/25 ,  Y10T428/31786

摘要： A biaxially oriented laminated polyester film comprising a first thin polyester layer containing large-diameter inert particles and small-diameter inert particles; a second polyester layer containing large-diameter inert particles; and a third thin polyester layer containing large-diameter inert particles and small-diameter inert particles, the biaxially oriented laminated polyester film satisfying the following expression (1), ##EQU1## wherein: W.sub.1 is the content (wt. %) of the large-diameter inert particles in the first thin polyester layer, W.sub.2 is the content (wt. %) of the large-diameter inert particles in the second polyester layer, D.sub.13 is a total of the thickness (.mu.m) of the first thin polyester layer and the thickness (.mu.m) of the third thin polyester layer, and D.sub.2 is the thickness (.mu.m) of the second polyester layer. This film is useful as a base film for a magnetic medium.

摘要翻译： 一种双轴取向叠层聚酯薄膜，包括含有大直径惰性颗粒和小直径惰性颗粒的第一薄聚酯层; 含有大直径惰性颗粒的第二聚酯层; 和含有大直径惰性颗粒和小直径惰性颗粒的第三薄聚酯层，满足以下表达式（1）的双轴取向叠层聚酯膜，其中：W1是含量（重量％）， 在第一薄聚酯层中的大直径惰性颗粒的W2为第二聚酯层中的大直径惰性颗粒的含量（重量％），D13为第一聚酯层中的大直径惰性颗粒的厚度（μm） 薄聚酯层和第三薄聚酯层的厚度（μm），D2是第二聚酯层的厚度（μm）。 该膜可用作磁性介质的基膜。

公开(公告)号：US5368932A

公开(公告)日：1994-11-29

申请号：US74593

申请日：1993-06-11

申请人： Hirofumi Murooka ,  Sumio Kato ,  Masami Etchu

发明人： Hirofumi Murooka ,  Sumio Kato ,  Masami Etchu

IPC分类号： G11B5/733 ,  G11B5/00

CPC分类号： G11B5/733 ,  Y10S428/90 ,  Y10S428/91 ,  Y10T428/254 ,  Y10T428/256 ,  Y10T428/257 ,  Y10T428/26 ,  Y10T428/265 ,  Y10T428/31786

摘要： A biaxially oriented polyester film for magnetic recording media, which comprises:(A) 0.05 to 1.0% by weight of .theta.-aluminum oxide or mixed (.alpha.+.gamma.) aluminum oxide having an average particle diameter in the range of from 0.02 to 0.3 .mu.m and a specific surface area in the range of from 50 to 120 m.sup.2 /g, and(B) 0.01 to 1.5 % by weight of inert organic particles having an average particle diameter which is in the range of from 0.1 to 1.5 .mu.m and greater than the average particle diameter of the aluminum oxide.

摘要翻译： 一种用于磁记录介质的双轴取向聚酯膜，其包含：（A）0.05-1.0重量％的氧化铝 - 氧化铝或平均粒径在0.02-0.3μm范围内的混合（α+γ）氧化铝 m，比表面积为50〜120m2 / g，（B）0.01〜1.5％（重量）平均粒径为0.1〜1.5μm的惰性有机粒子，以及 大于氧化铝的平均粒径。

公开(公告)号：US5620774A

公开(公告)日：1997-04-15

申请号：US387242

申请日：1995-02-13

申请人： Masami Etchu ,  Hirofumi Murooka

发明人： Masami Etchu ,  Hirofumi Murooka

IPC分类号： B32B27/36 ,  G11B5/73 ,  G11B5/733 ,  G11B5/738 ,  G11B5/704 ,  B32B5/16

CPC分类号： G11B5/7315 ,  B32B27/36 ,  G11B5/7305 ,  G11B5/733 ,  G11B5/738 ,  Y10S428/91 ,  Y10T428/24355 ,  Y10T428/24372 ,  Y10T428/24405 ,  Y10T428/24413 ,  Y10T428/2495 ,  Y10T428/25 ,  Y10T428/254 ,  Y10T428/256 ,  Y10T428/257 ,  Y10T428/26 ,  Y10T428/265 ,  Y10T428/268 ,  Y10T428/31786

摘要： A biaxially oriented laminated polyester film comprising:(A) a first thin polyester layer formed from an aromatic polyester containing two kinds of inert fine particles having different size and(B) a second polyester layer formed from an aromatic polyester, on at least one surface of which the above first thin polyester layer is present. This biaxially oriented laminated polyester film is is excellent in lubricity, abrasion resistance and scratch resistance and is particularly useful as a base film for a magnetic recording medium.

摘要翻译： 一种双轴取向叠层聚酯薄膜，包括：（A）由含有两种不同尺寸的惰性微粒的芳族聚酯形成的第一薄聚酯层，（B）由芳族聚酯形成的第二聚酯层，在至少一个表面 其中存在上述第一薄聚酯层。 该双轴取向叠层聚酯膜的润滑性，耐磨性和耐划伤性优异，特别适用于磁记录介质的基膜。

公开(公告)号：US5252388A

公开(公告)日：1993-10-12

申请号：US806288

申请日：1991-12-13

申请人： Hirofumi Murooka ,  Sumio Kato ,  Masami Etchu

发明人： Hirofumi Murooka ,  Sumio Kato ,  Masami Etchu

IPC分类号： B29C55/12 ,  B29K67/00 ,  B29K105/16 ,  B29L7/00 ,  C08J5/18 ,  C09D5/23 ,  C09D7/12 ,  G11B5/73 ,  G11B5/733 ,  G11B5/00 ,  B32B27/06

CPC分类号： G11B5/733 ,  Y10S428/90 ,  Y10S428/91 ,  Y10T428/256 ,  Y10T428/257 ,  Y10T428/26 ,  Y10T428/265 ,  Y10T428/31786

摘要： A biaxially oriented polyester film for magnetic recording media, which comprises:(A) 0.05 to 1.0% by weight of .theta.-aluminum oxide or mixed (.alpha.+.gamma.) aluminum oxide having an average particle diameter in the range of from 0.02 to 0.3 .mu.m and a specific surface area in the range of from 50 to 120 m.sup.2 /g, and(B) 0.01 to 1.5% by weight of inert particles having an average particle diameter which is in the range of from 0.1 to 1.5 .mu.m and greater than the average particle diameter of the aluminum oxide.

公开(公告)号：US06713155B1

公开(公告)日：2004-03-30

申请号：US10018746

申请日：2001-12-21

申请人： Makoto Handa ,  Hirofumi Murooka ,  Toshifumi Osawa

发明人： Makoto Handa ,  Hirofumi Murooka ,  Toshifumi Osawa

IPC分类号： G11B566

CPC分类号： B32B27/08 ,  B32B27/20 ,  B32B27/36 ,  B32B2367/00 ,  B32B2429/00 ,  G11B5/733 ,  Y10S428/90 ,  Y10T428/24942 ,  Y10T428/25 ,  Y10T428/265 ,  Y10T428/31786

摘要： A base film for magnetic recording media, comprising a film layer containing inert fine particles and having an agglomeration rate of the inert fine particles on the surface of the film of 4 to 20%, or a film layer containing inert fine particles and an ester wax of an aliphatic monocarboxylic acid having 8 or more carbon atoms and a polyhydric alcohol and having a water contact angle of the exposed surface of 70 to 90°. A magnetic recording medium, particularly a metal deposited thin film magnetic recording medium comprising this base film is excellent in electromagnetic conversion characteristics.

摘要翻译： 一种用于磁记录介质的基膜，包括含有惰性细颗粒并且膜的表面上的惰性细颗粒的聚集速率为4至20％的膜层，或包含惰性细颗粒和酯蜡的膜层 的碳原子数为8以上的脂肪族一元羧酸和多元醇，其暴露面的水接触角为70〜90°。 特别是包含该基膜的磁记录介质，特别是金属沉积薄膜磁记录介质具有优异的电磁转换特性。

公开(公告)号：US06890471B2

公开(公告)日：2005-05-10

申请号：US10203346

申请日：2001-12-07

申请人： Ieyasu Kobayashi ,  Shinji Muro ,  Hirofumi Murooka

发明人： Ieyasu Kobayashi ,  Shinji Muro ,  Hirofumi Murooka

IPC分类号： B29C55/00 ,  B29C55/12 ,  B29C55/14 ,  C08J5/18 ,  G11B5/73

CPC分类号： C08J5/18 ,  B29C55/005 ,  B29C55/12 ,  B29C55/143 ,  B29K2067/00 ,  C08J2367/02 ,  G11B5/7305 ,  Y10S428/91 ,  Y10T428/24355 ,  Y10T428/31678 ,  Y10T428/31681 ,  Y10T428/31786 ,  Y10T428/31855

摘要： A biaxially oriented polyester film for a high-density magnetic recording medium, particularly a high-density magnetic recoding medium of linear recording system, which has high strength in longitudinal and transverse directions, excellent dimensional stability in a crosswise direction and is flat and excellent in output characteristics and a process for producing the same. The biaxially oriented film is made from polyethylene-2,6-naphthalate and has a Young's modulus in a longitudinal direction of 8 GPa or more, a Young's modulus in a transverse direction of 6 GPa or more, a temperature expansion coefficient in the transverse direction (αt) of −5×10−6/° C. to +12×10−6/° C., a humidity expansion coefficient in the transverse direction (αh) of 5×10−6/% RH to 12×10−6/% RH and a thermal shrinkage factor in the transverse direction at 105° C. of −0.5 to +1.5%

摘要翻译： 一种用于高密度磁记录介质的双轴取向聚酯膜，特别是线性记录系统的高密度磁记录介质，其纵向和横向具有高强度，在横向上具有优异的尺寸稳定性，并且平坦且优异 输出特性及其制造方法。 双轴取向膜由聚2,6-萘二甲酸乙二醇酯制造，长度方向的杨氏模量为8GPa以上，横向杨氏模量为6GPa以上，横向的温度膨胀系数 （alphat）为-5×10 -6 /℃至+ 12×10 -6 /℃，横向湿度膨胀系数（alphah）为5×10 6 / SUP> -6％/％RH至12×10 -6 / RH，在105℃下横向的热收缩率为-0.5至+ 1.5％

公开(公告)号：US06677031B1

公开(公告)日：2004-01-13

申请号：US09914008

申请日：2001-08-22

申请人： Hirofumi Murooka ,  Hiroshi Tokuda

发明人： Hirofumi Murooka ,  Hiroshi Tokuda

IPC分类号： B32B2708

CPC分类号： G02B27/283 ,  B32B27/08 ,  B32B27/18 ,  B32B27/36 ,  G02B5/3033 ,  Y10S428/91 ,  Y10T428/24942 ,  Y10T428/24975 ,  Y10T428/25 ,  Y10T428/252 ,  Y10T428/254 ,  Y10T428/256 ,  Y10T428/257 ,  Y10T428/258 ,  Y10T428/259 ,  Y10T428/269 ,  Y10T428/31786 ,  Y10T428/31797

摘要： There is provided a multilayer film which is useful as a refractive polarizer film or a semi-transparent film. The multilayer film comprises a first layer comprising of a polyester whose main recurring unit is ethylene-2,6-naphthalene dicarboxylate and a second layer comprising mainly of a thermoplastic resin which is different from the polyester of the first layer, wherein at least one of the first and second layers contains 0.001 to 0.5 wt % of inert fine particles having an average particle diameter of 0.01 to 2 &mgr;m; the first and second layers each have a thickness of 0.05 to 0.3 &mgr;m and are laminated alternately to form a laminate comprising at least 11 layers; the laminate is oriented at least in one direction; and the second layer has a lower refractive index than the first layer at least in one direction. This multilayer film has excellent handling properties such as film formability and windability and an easily adjustable reflectance.

摘要翻译： 提供了可用作折射偏光膜或半透明膜的多层膜。 所述多层膜包含由主要重复单元为乙烯-2,6-萘二甲酸酯的聚酯构成的第一层和主要由不同于第一层的聚酯的热塑性树脂组成的第二层，其中， 第一层和第二层含有0.001〜0.5重量％的平均粒径为0.01〜2μ​​m的惰性微粒; 第一层和第二层各自具有0.05至0.3μm的厚度并且交替地层压以形成包含至少11层的层压体; 层压板至少在一个方向上取向; 并且所述第二层至少在一个方向上具有比所述第一层低的折射率。 该多层膜具有优异的处理性能，例如成膜性和卷取性，并且易于调节反射率。

公开(公告)号：US6071599A

公开(公告)日：2000-06-06

申请号：US142852

申请日：1998-05-22

申请人： Masahiko Kosuge ,  Manabu Kimura ,  Tetsuo Yoshida ,  Koji Kubo ,  Hirofumi Murooka ,  Tetsuya Hasegawa

发明人： Masahiko Kosuge ,  Manabu Kimura ,  Tetsuo Yoshida ,  Koji Kubo ,  Hirofumi Murooka ,  Tetsuya Hasegawa

IPC分类号： B32B15/08 ,  B32B27/36 ,  C09D167/02 ,  B32B7/02 ,  B32B27/06

CPC分类号： C09D167/02 ,  B32B15/08 ,  B32B27/36 ,  Y10T428/2495

摘要： A laminate polyester film to be laminated onto metal plate and molded comprises the first layer made from copoly(ethylene-terephthalate/isophthalate) having a melting point of 205 to 250.degree. C. and a second layer made from a polyester (i) comprising ester units of an aromatic dicarboxylic acid component, an aliphatic dicarboxylic acid component and aliphatic diol components, (ii) containing a titanium compound soluble in the polyester in an amount of 30 to 200 ppm in terms of elemental titanium and (iii) having one or two melting point(s) in the range of 170 to 245.degree. C., and has the maximum peak temperature of loss elastic modulus of higher than 47.degree. C. and 85.degree. C. or lower. This laminate polyester film is suitably used for application such as metal cans for juice and other refreshing drinks that are handled in a cooled state.

摘要翻译： PCT No.PCT / JP97 / 03285。 371日期：1998年5月22日 102（e）日期1998年5月22日PCT 1997年9月17日PCT公布。 第WO98 / 12049号公报 1998年3月26日将层压在金属板上并成型的层压聚酯膜包括由熔点为205-250℃的共聚（对苯二甲酸乙二醇酯/间苯二甲酸酯）制成的第一层和由聚酯制成的第二层 （i）包含芳族二羧酸组分的酯单元，脂肪族二羧酸组分和脂肪族二醇组分，（ii）以元素钛计，含有以聚氨酯为基准的30-200ppm的钛化合物，（iii） ）具有170-245℃范围内的一个或两个熔点，并且具有高于47℃和85℃或更低的损耗弹性模量的最大峰值温度。 这种层压聚酯薄膜适合用于诸如用于果汁的金属罐和在冷却状态下处理的其它清凉饮料。

公开(公告)号：US20050031880A1

公开(公告)日：2005-02-10

申请号：US10942140

申请日：2004-09-16

申请人： Ieyasu Kobayashi ,  Shinji Muro ,  Hirofumi Murooka

发明人： Ieyasu Kobayashi ,  Shinji Muro ,  Hirofumi Murooka

IPC分类号： B29C55/00 ,  B29C55/12 ,  B29C55/14 ,  C08J5/18 ,  G11B5/73 ,  D06N7/04 ,  B32B27/36 ,  G11B5/64

CPC分类号： C08J5/18 ,  B29C55/005 ,  B29C55/12 ,  B29C55/143 ,  B29K2067/00 ,  C08J2367/02 ,  G11B5/7305 ,  Y10S428/91 ,  Y10T428/24355 ,  Y10T428/31678 ,  Y10T428/31681 ,  Y10T428/31786 ,  Y10T428/31855

摘要： A biaxially oriented polyester film for a high-density magnetic recording medium, particularly a high-density magnetic recoding medium of linear recording system, which has high strength in longitudinal and transverse directions, excellent dimensional stability in a crosswise direction and is flat and excellent in output characteristics and a process for producing the same. The biaxially oriented film is made from polyethylene-2,6-naphthalate and has a Young's modulus in a longitudinal direction of 8 GPa or more, a Young's modulus in a transverse direction of 6 GPa or more, a temperature expansion coefficient in the transverse direction (αt) of −5×10−6/° C. to +12×10−6/° C., a humidity expansion coefficient in the transverse direction (αh) of 5×10−6/% RH to 12×10−6/% RH and a thermal shrinkage factor in the transverse direction at 105° C. of −0.5 to +1.5%

摘要翻译： 一种用于高密度磁记录介质的双轴取向聚酯膜，特别是线性记录系统的高密度磁记录介质，其纵向和横向具有高强度，在横向上具有优异的尺寸稳定性，并且平坦且优异 输出特性及其制造方法。 双轴取向膜由聚2,6-萘二甲酸乙二醇酯制造，长度方向的杨氏模量为8GPa以上，横向杨氏模量为6GPa以上，横向的温度膨胀系数 （alphat）为-5×10 -6 /℃至+ 12×10 -6 /℃，横向湿度膨胀系数（alphah）为5×10 -6 / RH至12×10 -6 / 6℃/％RH，105℃下横向的热收缩率为-0.5〜1.5％

公开(公告)号：US06472046B1

公开(公告)日：2002-10-29

申请号：US09367593

申请日：1999-08-18

申请人： Koji Kubo ,  Hirofumi Murooka ,  Masahiko Kosuge ,  Hideshi Kurihara

发明人： Koji Kubo ,  Hirofumi Murooka ,  Masahiko Kosuge ,  Hideshi Kurihara

IPC分类号： B32B516

CPC分类号： B32B15/09 ,  B29C55/12 ,  B32B15/08 ,  B32B27/20 ,  B32B27/36 ,  B32B38/12 ,  B32B2307/518 ,  B32B2367/00 ,  B32B2439/66 ,  C08J5/18 ,  C08J2367/02 ,  Y10S428/91 ,  Y10T156/1036 ,  Y10T156/1038 ,  Y10T156/1043 ,  Y10T156/1048 ,  Y10T428/24355 ,  Y10T428/249981 ,  Y10T428/25 ,  Y10T428/259 ,  Y10T428/31681 ,  Y10T428/31786

摘要： A biaxially oriented polyester film to be laminated onto a metal plate and molded, (A) which comprises a copolyester comprising (a) terephthalic acid in an amount of 82 to 100 mol % and 2,6-naphthalenedicarboxylic acid or a combination of 2,6-naphthalenedicarboxylic acid and other dicarboxylic acid in an amount of 0 to 18 mol % of the total of all dicarboxylic acid components and (b) ethylene glycol in an amount of 82 to 100 mol % and cyclohexanedimethanol or a combination of cyclohexanedimethanol and other diol in an amount of 0 to 18 mol % of the total of all diol components, having (c) a glass transition temperature of 78° C. or more and (d) a melting point of 210 to 250° C., and containing (e) porous silica particles with a pore volume of 0.5 to 2.0 ml/g which are agglomerates of primary particles having an average particle diameter of 0.001 to 0.1 &mgr;m; and (B) which has the following relationship between the highest peak temperature (Te, °C.) of loss elastic modulus and the glass transition temperature (Tg, °C.): Te−Tg≦30. This film has improved taste-and-flavor retainabilities, particularly taste and flavor retainabilities after a retort treatment, without losing the excellent moldability, heat resistance, impact resistance and retort resistance of a copolyester film.

摘要翻译： 将层压在金属板上并成型的双轴取向聚酯膜（A），其包含共聚酯，该共聚酯包含（a）82〜100摩尔％的对苯二甲酸和2,6-萘二羧酸或2〜 （b）82〜100摩尔％的乙二醇和环己烷二甲醇或环己烷二甲醇与其他二醇的组合的量为0〜18摩尔％的二羧酸和6-萘二羧酸 （c）玻璃化转变温度为78℃以上，（d）熔点为210〜250℃，含有（ e）孔体积为0.5〜2.0ml / g的多孔二氧化硅粒子，其为平均粒径为0.001〜0.1μm的一次粒子的凝聚体; 和（B），其在损耗弹性模量的最高峰值温度（Te，℃）与玻璃化转变温度（Tg，℃）之间具有以下关系：Te-Tg <= 30。 该膜具有改善的口味和味道保留性，特别是在蒸煮处理后的味道和风味保持性，而不失去共聚聚酯薄膜的优异成型性，耐热性，耐冲击性和耐蒸煮性。