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公开(公告)号：US06905761B2
公开(公告)日：2005-06-14
申请号：US10317514
申请日：2002-12-12
IPC分类号： G03C5/14 , G03C7/24 , G11B5/70 , G11B5/706 , G11B5/712 , B32B5/16 , B05D5/12 , C08K5/00 , G11B5/66
CPC分类号： G03C5/14 , G03C7/24 , G11B5/7013 , G11B5/706 , G11B5/712 , Y10T428/25 , Y10T428/26 , Y10T428/265
摘要： A concentrated fine solid particle dispersion useful for forming a substantially photographically transparent magnetic recording layer is disclosed, comprising an organic solvent medium containing a dispersing agent and dispersed magnetic particles, wherein the magnetic particles are present at a concentration of at least 25% by weight and the organic solvent medium is comprised primarily of organic solvent selected from dimethyl succinate, dimethyl glutarate and dimethyl adipate. This invention provides a stable concentrated dispersion of magnetic particles useful for preparing substantially photographically transparent magnetic recording layers. A film-forming binder solution can be added to dilute the concentrated dispersion, which then can be applied to a support to form a transparent magnetic layer for a magnetic recording element. This invention also provides a photographic element which contains a magnetic recording layer which has excellent magnetic characteristics and which is substantially photographically transparent by virtue of its low granularity and optical density.
摘要翻译： 公开了一种用于形成基本上为摄影透明的磁记录层的浓缩细小固体颗粒分散体，其包含含有分散剂和分散的磁性颗粒的有机溶剂介质，其中磁性颗粒以至少25重量％的浓度存在，以及 有机溶剂介质主要由选自琥珀酸二甲酯，戊二酸二甲酯和己二酸二甲酯的有机溶剂组成。 本发明提供用于制备基本上照相的透明磁记录层的磁性颗粒的稳定的浓缩分散体。 可以加入成膜粘合剂溶液以稀释浓缩的分散体，然后可以将其分散在载体上以形成用于磁记录元件的透明磁性层。 本发明还提供了一种照相材料，其含有磁记录层，该磁记录层具有优良的磁特性，并且由于其低颗粒度和光密度而基本上是摄影透明的。
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2.发明授权公开(公告)号：US06422702B1
公开(公告)日：2002-07-23
申请号：US09409292
申请日：1999-09-30
IPC分类号： G03B160
摘要： A method for monitoring the amount of unexposed photographic film remaining in a motion camera film magazine that includes the steps of: providing an unexposed motion picture film containing a support having at least one light sensitive image recording layer and a transparent magnetic recording layer; recording film length data on the transparent magnetic recording layer of the unexposed motion picture film; loading the unexposed motion picture film in a motion picture film magazine; and reading the film length data from the transparent magnetic recording layer as it is removed from the film supply magazine to provide an indication of the amount of unexposed film remaining in the motion picture film magazine. The amount of unexposed film remaining may be displayed in a read-out device associated with the film magazine or camera.
摘要翻译： 一种用于监视运动摄像机胶片盒中剩余的未曝光摄影胶片的量的方法，包括以下步骤：提供含有至少一个光敏图像记录层和透明磁记录层的载体的未曝光电影胶片; 在未曝光的电影胶片的透明磁记录层上记录胶片长度数据; 将未曝光的动态影像胶卷装入电影胶卷; 以及从透明磁记录层读取胶片长度数据时，从胶片供应盒中取出胶片长度数据，以提供剩余在电影胶片盒中的未曝光胶片的量的指示。 可以在与胶片盒或相机相关联的读出装置中显示剩余的未曝光胶片的量。
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公开(公告)号：US5434037A
公开(公告)日：1995-07-18
申请号：US252500
申请日：1994-06-01
CPC分类号： G11B5/633 , G03C1/7614 , G03C7/3029 , G11B5/7085 , G11B5/72
摘要： A photographic element comprising a support having provided thereon a light-sensitive layer, a transparent magnetic recording layer, and a transparent abrasive layer coated over the transparent magentic recording layer, the transparent magnetic recording layer comprising a transparent polymeric binder and ferro-magnetic particles having a surface area greater than 30 m.sup.2 /gm and a coverage of from about 1.times.10.sup.-11 mg/.mu.m.sup.3 to about 3.times.10.sup.-10 mg/.mu.m.sup.3, the abrasive layer comprising a transparent polymeric binder and abrasive particles having a median diameter of from about 0.2 to about 0.4 .mu.m, a specific surface area greater than 5 m.sup.2 /gm, a Mobs hardness of at least 6 and being present in an amount of at least about 5.times.10.sup.-12 mg/.mu.m.sup.3.
摘要翻译： 一种照相元件，包括其上设置有感光层，透明磁记录层和涂覆在透明磁记录层上的透明研磨层的支撑体，透明磁记录层包括透明聚合物粘合剂和铁磁性颗粒， 表面积大于30m2 / gm，覆盖率为约1×10-11mg /μm3至约3×10-10mg / m3，研磨层包含透明聚合物粘合剂和磨料颗粒，其中心直径为约 0.2至约0.4μm，比表面积大于5m 2 / gm，Mobs硬度至少为6，并且以至少约5×10 -12mg / m 3的量存在。
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公开(公告)号：US5432050A
公开(公告)日：1995-07-11
申请号：US193349
申请日：1994-02-08
IPC分类号： G03C1/00 , C09D5/23 , G03C5/14 , G03C7/24 , G11B5/633 , G11B5/708 , G11B5/714 , G11B5/738 , G03C1/76
摘要： A photographic element comprising a support having provided thereon a light-sensitive layer and a transparent magnetic recording layer, the magnetic recording layer comprising a transparent polymeric binder, ferro-magnetic particles and reinforcing filler particles, the magnetic particles having a surface area greater than 30 m.sup.2 /gm and a coverage of from about 1.times.10.sup.-11 mg/.mu.m.sup.3 to about 1.times.10.sup.-10 mg/.mu.m.sup.3, the filler particles having a median diameter less than 0.15 .mu.m, a Mohs hardness of at least 6 and being present in the transparent magnetic layer in an amount of about 20% to about 300% by weight based on the weight of the polymeric binder present.
摘要翻译： 一种照相元件，包括在其上设置有感光层和透明磁记录层的支撑体，所述磁记录层包括透明聚合物粘合剂，铁磁性颗粒和增强填料颗粒，磁性颗粒的表面积大于30 m2 / gm，覆盖范围为约1×10-11mg / m3至约1×10-10mg / m3，填料颗粒的中值粒径小于0.15μm，莫氏硬度至少为6，存在于 所述透明磁性层的量为所述聚合物粘合剂的重量的约20％至约300％。
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公开(公告)号：US5230818A
公开(公告)日：1993-07-27
申请号：US811386
申请日：1991-12-20
CPC分类号： G11B5/7028 , G11B5/7021 , G11B5/708 , G11B5/735 , G11B5/865 , Y10T428/31663
摘要： A coating composition is provided for master media for anhysteretic transfer of magnetically recorded information to a copy medium which comprises from about 50 to about 69% of a magnetic pigment, from about 2.95 to about 6.90% of an abrasive powder, from 0 to about 5.4% of a colloidal inorganic powder, from about 2.9 to about 4.5% of a wetting agent, from about 0.7 to about 3.1% of a lubricant, from about 14.1 to about 33.6% of a binder, at least 85% of which is a polyurethane and from 0.05 to about 15% of which is a polyisocyanate crosslinking agent. The composition is preferably disposed on a substrate backcoated with a composition containing from about 15 to about 25% of carbon black, from about 15 to about 25% of an inorganic filler, from about 0.5 to about 2% of an abrasive, from about 20 to about 30% of a vinyl copolymeric binder, from about 15 to about 25% of a polyurethane binder, from about 7.5 to about 17.5% of an NCO terminated crosslinking agent, from about 0.9 to about 2% of a lubricant, and from about 0.06 to about 0.6% of a coating aid. Master media for anhysteretic recording containing the coating composition of the invention and an anhysteretic duplicating system are also provided as are processes for preparing the coating compositions and master media and for anhysteretic duplication.
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公开(公告)号：US6048677A
公开(公告)日：2000-04-11
申请号：US221465
申请日：1998-12-28
申请人： Janglin Chen , Yongcai Wang , Vito A. DePalma , Robert O. James
发明人： Janglin Chen , Yongcai Wang , Vito A. DePalma , Robert O. James
CPC分类号： G03C1/7614 , Y10S430/151 , Y10S430/162
摘要： The present invention is a photographic element which includes a support having a first side and a second side, at least one light sensitive emulsion layer superposed on the first side of the support, a transparent magnetic layer superposed on the second side of the support. The transparent magnetic layer includes magnetic particles and a film forming binder. An outermost abrasive lubricant layer overlies the transparent magnetic layer. The outermost abrasive lubricant layer is formed from a non-aqueous coating composition of a composite wax particle, an abrasive particle and an organic solvent. The composite wax particle is composed of a wax phase having a wax having a melting point of greater than 30.degree. C. the wax being greater than 80% by weight of the wax phase and a non-crosslinked polymer phase free of chemically bonded acid groups.
摘要翻译： 本发明是一种照相元件，其包括具有第一侧和第二侧的支撑体，叠置在支撑体的第一侧上的至少一个感光乳剂层，叠置在支撑体的第二侧上的透明磁性层。 透明磁性层包括磁性颗粒和成膜粘合剂。 最外面的磨料润滑剂层覆盖着透明磁性层。 最外面的研磨剂润滑剂层由复合蜡颗粒，磨料颗粒和有机溶剂的非水性涂料组合物形成。 复合蜡颗粒由具有大于30℃熔点的蜡的蜡相组成，蜡大于蜡相的80重量％以及不含化学键合的酸基的非交联聚合物相 。
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公开(公告)号：US5576266A
公开(公告)日：1996-11-19
申请号：US599692
申请日：1996-02-12
CPC分类号： B41M5/42 , B41M2205/30 , B41M5/426 , Y10S428/913 , Y10S428/914 , Y10T428/2991
摘要： A dye-donor element for thermal dye transfer comprising a support having on one side thereof a dye layer and on the other side thereof in the direct opposite area to at least a portion of the dye layer, a magnetic recording layer and a slipping layer, in that order.
摘要翻译： 一种用于热染料转移的染料供体元件，包括在其一侧上具有染料层并且在与染料层的至少一部分直接相对的区域中的另一侧的支撑体，磁记录层和滑动层， 以该顺序。
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公开(公告)号：US5498512A
公开(公告)日：1996-03-12
申请号：US402265
申请日：1995-03-10
IPC分类号： C09D5/23 , C09D7/12 , G03C1/00 , G03C7/00 , G03C11/02 , G11B5/627 , G11B5/633 , H04B1/707 , G03C1/76 , G11B5/708
摘要： A photographic element having a light-sensitive layer and a transparent magnetic recording layer, the transparent magnetic recording layer comprising ferromagnetic particles having a ferromagnetic core and a shell of tin oxide or metal antimonate in a binder.
摘要翻译： 具有感光层和透明磁记录层的照相元件，所述透明磁记录层包括在粘合剂中具有铁磁性核的铁磁颗粒和氧化锡或金属锑酸盐的壳。
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公开(公告)号：US5427900A
公开(公告)日：1995-06-27
申请号：US193304
申请日：1994-02-08
摘要： A photographic element comprising a support having provided thereon a light-sensitive layer and a transparent magnetic recording layer, the magnetic recording layer comprising a transparent polymeric binder, ferro-magnetic particles and tin oxide particles, the magnetic particles having a surface area greater than 30 m.sup.2 /gm and a coverage of from about 1.times.10.sup.-11 mg/.mu.m.sup.3 to about 1.times.10.sup.-10 mg/.mu.m.sup.3, the tin oxide particles having a median diameter of less than 0.15 .mu.m and being present in the transparent magnetic layer in an amount of from 300 to 1200 percent by weight based on the weight of the binder.
摘要翻译： 一种照相元件，包括在其上设置有感光层和透明磁记录层的支撑体，所述磁记录层包括透明聚合物粘合剂，铁磁性颗粒和氧化锡颗粒，所述磁性颗粒的表面积大于30 m2 / gm，覆盖范围为约1×10-11mg / m 3至约1×10 -10 mg / m 3，氧化锡颗粒的中值粒径小于0.15μm，并存在于透明磁性层中 量为基于粘合剂重量的300至1200重量％。
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10.发明授权
公开(公告)号：US5252441A
公开(公告)日：1993-10-12
申请号：US609672
申请日：1990-11-06
CPC分类号： G11B5/70673 , G03C5/14 , G11B5/633
摘要： A photographic element including a light-sensitive layer and a transparent magnetic layer wherein the magnetic particles in the transparent binder are cobalt surface treated gamma iron oxide (Fe.sub.2 O.sub.3) having a specific area of at least 30 m.sup.2 /g, the particles being coated with from about 10 to about 50% by weight of a material having a refractive index less than that of the binder, the particles having a powder coercivity greater than about 450 Oe.
摘要翻译： 包括感光层和透明磁性层的照相元件，其中透明粘合剂中的磁性颗粒是具有至少30m 2 / g比表面积的钴表面处理的γ氧化铁（Fe 2 O 3），颗粒由 约10至约50重量％的折射率小于粘合剂的材料，所述颗粒具有大于约450Oe的粉末矫顽力。
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