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公开(公告)号:US4101523A
公开(公告)日:1978-07-18
申请号:US705936
申请日:1976-07-16
申请人: Masamichi Watanabe , Takuo Nakahara , Seiji Sakamoto , Kunio Bizen , Akikazu Yano , Yuzo Otani
发明人: Masamichi Watanabe , Takuo Nakahara , Seiji Sakamoto , Kunio Bizen , Akikazu Yano , Yuzo Otani
CPC分类号: C07C51/412 , C08G63/78 , C08K5/09 , C08K5/098 , C08K7/16
摘要: A polyester film is disclosed which comprises a polyester mainly consisting of polyethylene terephthalate and an additive amount of granular calcium terephthalate anhydride particles having a specific volume shape factor. The average particle diameter and additive amount of the granular calcium terephthalate anhydride particles may be controlled so that the film is particularly suitable as a metallized film or a condenser film.
摘要翻译: 公开了一种聚酯膜,其包含主要由聚对苯二甲酸乙二醇酯形成的聚酯和具有特定体积形状因子的添加量的颗粒状对苯二甲酸钙酸酐颗粒。 可以控制颗粒状对苯二甲酸钙对甲苯酯酸酐颗粒的平均粒径和添加量,使得该膜特别适合作为金属化膜或冷凝膜。
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公开(公告)号:US4096109A
公开(公告)日:1978-06-20
申请号:US705914
申请日:1976-07-16
申请人: Masamichi Watanabe , Takuo Nakahara , Seiji Sakamoto , Kunio Bizen , Akikazu Yano , Yuzo Otani
发明人: Masamichi Watanabe , Takuo Nakahara , Seiji Sakamoto , Kunio Bizen , Akikazu Yano , Yuzo Otani
IPC分类号: C08L67/00 , B29C49/00 , B29C55/00 , B29C55/12 , C08J5/18 , G11B5/73 , G11B5/733 , C08K3/16 , C08K3/26 , C08K5/09
CPC分类号: G11B5/733 , Y10S260/35
摘要: A polyester film is disclosed which comprises (a) a polyester mainly consisting of polyethylene terephthalate which includes first inert particles being precipitated in the polyester-forming reaction system and having an average particle diameter of 1 to 3 microns and which shows a solution haze of 25 to 75% and (b) an additive amount of second inert substance particles which are added to said polyester (a) insoluble in said polyester (a), inert to the polyester-forming reaction and have an average particle diameter of 1 to 5 microns. The film is useful as a base of a magnetic tape.
摘要翻译: 公开了一种聚酯薄膜,其包含(a)主要由聚对苯二甲酸乙二醇酯组成的聚酯,其包含在聚酯形成反应体系中沉淀的第一惰性颗粒,其平均粒径为1至3微米,并且其溶液雾度为25 至75%,和(b)添加量不溶于所述聚酯(a)的所述聚酯(a)中的第二惰性物质颗粒,对聚酯形成反应是惰性的并且具有1至5微米的平均粒径 。 该胶片可用作磁带的底座。
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公开(公告)号:US4320207A
公开(公告)日:1982-03-16
申请号:US144047
申请日:1980-04-28
申请人: Masamichi Watanabe , Seiji Sakamoto
发明人: Masamichi Watanabe , Seiji Sakamoto
IPC分类号: C08L67/02
CPC分类号: C08L67/02
摘要: There is disclosed a polyester film containing from 0.001% to 4% by weight fine particles of a crosslinked polymer having an average diameter of 0.1 to 5.mu., said fine particles being derived by pulverization from a crosslinked polymer having a specific surface area of at least 1 m.sup.2 /g and a pore volume of at least 0.1 ml/g. The films of the present invention are useful as high grade films and afford many advantages in various applications, for example, as magnetic tapes, capacitors, photography, printing plate making, releasing and the like.
摘要翻译: 公开了一种聚酯膜,其含有0.001〜4重量%的平均直径为0.1〜5μm的交联聚合物的微粒,所述微粒是由比表面积至少为1的交联聚合物粉碎得到的 1m 2 / g,孔体积至少为0.1ml / g。 本发明的膜可用作高级膜,并且在各种应用中提供许多优点,例如磁带,电容器,照相,印版制备,释放等。
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公开(公告)号:US20100072892A1
公开(公告)日:2010-03-25
申请号:US12443085
申请日:2007-09-21
申请人: Akio Watanabe , Tetsuo Ootani , Seiji Sakamoto , Minoru Nishizono
发明人: Akio Watanabe , Tetsuo Ootani , Seiji Sakamoto , Minoru Nishizono
CPC分类号: H05B3/009 , H01J5/38 , H01J5/46 , H01K1/14 , H01K1/24 , H01K1/38 , H01K1/40 , H01K1/44 , H01K1/46 , H01K3/26
摘要: A halogen lamp including a glass bulb, a filament inserted inside the bulb, a pair of metal foils, and a pair of outer leads. Each metal foil has one end welded to the filament and the other end welded to the outer lead. The metal foils are contained in glass sleeves and they are collectively inserted inside the bulb. The bulb is softened by heating and shrinks because its inside pressure is reduced to seal the metal foils therein. Since the amount of glass of each sealed portion is larger than the other portions of the bulb by the amount of the sleeve, the shape of the sealed portion is stabilized.
摘要翻译: 一种卤素灯,包括玻璃灯泡,插入灯泡内的细丝,一对金属箔和一对外引线。 每个金属箔的一端焊接到灯丝,另一端焊接到外引线。 金属箔被包含在玻璃套筒中,并且它们被一起插入灯泡内。 通过加热和收缩来使灯泡软化,因为其内部压力减小以密封其中的金属箔。 由于每个密封部分的玻璃量比套管的其他部分大,所以密封部分的形状是稳定的。
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公开(公告)号:US4767657A
公开(公告)日:1988-08-30
申请号:US883285
申请日:1986-07-07
申请人: Seiji Sakamoto , Yoshio Meguro
发明人: Seiji Sakamoto , Yoshio Meguro
CPC分类号: G11B5/7305 , Y10S428/90 , Y10S428/91 , Y10T428/24372 , Y10T428/24413 , Y10T428/24421 , Y10T428/24479 , Y10T428/25 , Y10T428/254 , Y10T428/256 , Y10T428/257 , Y10T428/259 , Y10T428/269 , Y10T428/31 , Y10T428/31786 , Y10T428/31797
摘要: There is disclosed a polyester film suitable for use in magnetic tapes having the characteristics represented by the following equations: ##EQU1## wherein N.sub.1 is the number of peaks of surface projections per millimeter;h is the average height in .mu.m of the surface projections;.theta. is the average steepness in degree of the surface projections;H.sup.2 is the mean square height in .mu.m.sup.2 of the surface projections; andn is the average refractive index.
摘要翻译: 公开了一种适用于具有以下等式表示的特性的磁带的聚酯膜:N1h(i)其中N1是峰的数量 的表面投影每毫米; &upbar&h是表面投影的平均高度,单位为μm。 θ是表面投影的平均陡度; &upbar&H2是表面投影的平均单位面积的平方米; 和& upbar&n是平均折射率。
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公开(公告)号:USD598158S1
公开(公告)日:2009-08-11
申请号:US29290611
申请日:2007-12-26
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公开(公告)号:USD586495S1
公开(公告)日:2009-02-10
申请号:US29290608
申请日:2007-12-26
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公开(公告)号:US5023291A
公开(公告)日:1991-06-11
申请号:US379346
申请日:1989-07-13
申请人: Seiji Sakamoto , Nobuyasu Shudo
发明人: Seiji Sakamoto , Nobuyasu Shudo
CPC分类号: C08J5/18 , C08K3/22 , C08J2367/02
摘要: Disclosed herein is a polyester composition which comprises a polyester with a terminal carboxyl group content of 40 to 80 equivalents/10.sup.6 and 0.0 to 5 wt %, based on the total amount of the polyester composition, aluminum oxide particles of 0.005 to 5 .mu.m in average particle diameter and which has a melt resistivity of 6 x 10.sup.6 to 5 x 10.sup.8 .OMEGA..cm.By using the polyester composition, it is possible to successively produce a film having excellent wear resistance and flatness over a long production run.
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公开(公告)号:US4840830A
公开(公告)日:1989-06-20
申请号:US105977
申请日:1987-10-06
申请人: Seiji Sakamoto , Kiyoshi Yasumura
发明人: Seiji Sakamoto , Kiyoshi Yasumura
CPC分类号: C08J5/18 , C08K3/32 , G11B5/7305 , C08J2367/02 , Y10T428/24355 , Y10T428/31 , Y10T428/31786
摘要: A polyester film suitable for use as the magnetic tape base for video recording, capable of high density recording and having stable slidability or running characteristics. The polyester film is made of a polyester which contains 0.05-1 wt % particles containing calcium and phosphorus and of which the number n of the second interference fringes (number/mm.sup.2) and the average centerline roughness (.mu.m) satisfy the following relationships:n
摘要翻译: 适用于视频记录磁带基座的聚酯薄膜,能够进行高密度记录并具有稳定的滑动性或运行特性。 聚酯膜由含有0.05-1重量%的含有磷和磷的颗粒的聚酯制成,其中第二干涉条纹数(数/ mm2)和平均中心线粗糙度(μm)满足以下关系: n <30(1)0.005 = Ra 0.025(2)
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公开(公告)号:USD586941S1
公开(公告)日:2009-02-17
申请号:US29290610
申请日:2007-12-26
申请人: Yuji Itakura , Seiji Sakamoto , Tetsuo Ootani , Akio Watanabe
设计人: Yuji Itakura , Seiji Sakamoto , Tetsuo Ootani , Akio Watanabe
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