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1. 发明授权

US5256497A Magnetic tape containing abrasives 失效
标题翻译：含有磨料的磁带
公开(公告)号：US5256497A
公开(公告)日：1993-10-26
申请号：US720060
申请日：1991-06-24
申请人： Albrecht Koller , Hans-Heinrich Credner
发明人： Albrecht Koller , Hans-Heinrich Credner
IPC分类号： G11B5/41 , C09D5/23 , G11B5/708 , G11B5/73 , G11B5/66 , B32B5/16
CPC分类号： G11B5/7085 , Y10S428/90 , Y10T428/25 , Y10T428/256 , Y10T428/257 , Y10T428/265
摘要： It has been found that a magnetic tape which may be used in particular for video recording and which has excellent abrasive and cleaning properties for all those parts of the cassette or rather the recording and play-back unit which come into contact with the magnetic layer can be obtained by addition of a non-magnetic powder having a Mohs' hardness of at least 9 and a primary particle size of 0.3 to 2 .mu.m to the magnetic pigment, which has a BET surface of at least 26 m.sup.2 /g, in the magnetic dispersion, the magnetic layer of the magnetic tape having an Ra value of less than 0.02 .mu.m. The best results were obtained with cubic Al.sub.2 O.sub.3 particles added in a quantity of 1.1 to 4.4% by weight, based on the magnetic pigment.
摘要翻译：已经发现，可以特别用于视频记录并且对于盒子的所有这些部分，或与磁性层接触的记录和播放单元具有优异的研磨和清洁性能的磁带可以通过在具有至少26m 2 / g的BET表面的磁性颜料中加入Mohs'硬度至少为9，一次粒径为0.3〜2μm的非磁性粉末，在磁性分散，磁带的磁性层的Ra值小于0.02μm。以基于磁性颜料计，添加量为1.1〜4.4重量％的立方体Al 2 O 3颗粒得到最好的结果。

2. 发明授权

US3941601A Photographic silver halide material which contains color couplers 失效
标题翻译：包含彩色成色剂的摄影卤化银材料
公开(公告)号：US3941601A
公开(公告)日：1976-03-02
申请号：US530719
申请日：1974-12-09
申请人： Willibald Pelz , Hans-Heinrich Credner , Walter Schulte , Alfons Klein , Karlfried Wedemeyer , Fritz Nittel
发明人： Willibald Pelz , Hans-Heinrich Credner , Walter Schulte , Alfons Klein , Karlfried Wedemeyer , Fritz Nittel
IPC分类号： G03C7/32 , G03C1/40
CPC分类号： G03C7/3212
摘要： This invention relates to a color photographic material with at least one silver halide emulsion layer having improved stability against crystallization and which contains in dispersed form a open chain keto methylene coupler a naphtholic or pyrazolone color coupler substituted with a 2-cyclo-pentyl-4-t-butyl-phenoxy group in a non-coupling position.
摘要翻译：本发明涉及一种具有至少一种卤化银乳剂层的彩色照相材料，其具有改善的耐结晶稳定性，并且以分散形式包含开环酮亚甲基成色剂，萘酚或吡唑啉酮颜色成色剂被2-环戊基-4- 叔丁基 - 苯氧基在非偶联位置。

3. 发明授权

US5415929A Magnetic recording medium having a magnetic layer prepared from magnetic particles using specified dispersants which enhance the electrostatic change on the magnetic pigment surface 失效
标题翻译：磁记录介质具有使用增强磁性颜料表面的静电变化的特定分散剂由磁性颗粒制备的磁性层
公开(公告)号：US5415929A
公开(公告)日：1995-05-16
申请号：US53864
申请日：1993-04-29
申请人： Attila Vass , Wolf-Dieter Schroeer , Hans-Heinrich Credner
发明人： Attila Vass , Wolf-Dieter Schroeer , Hans-Heinrich Credner
IPC分类号： G11B5/70 , G11B5/712 , G11B5/00
CPC分类号： G11B5/7013 , G11B5/712 , Y10S428/90 , Y10T428/25 , Y10T428/2991 , Y10T428/2998
摘要： In the preparation of dispersions of magnetic pigments in organic solvents, dispersants which have a sterically stabilizing effect are used. Milling results in division of the pigment aggregates, which combine again as a result of attractive forces to give secondary agglomerates in the event of poor stabilization. These flocculating materials must be removed from the dispersion by expensive filtration. If an increase in the fineness or pigment batch fluctuations lead to an increase in the secondary agglomerates, filter breakthroughs may occur, resulting in a dramatic reduction in the yield of magnetic recording medium. It was found that excellent dispersion stability is achieved when the magnetic pigments are first precoated with a long-chain dispersant. Subsequently, the use of charge-generating, low molecular weight codispersants, a charge build-up on the pigment is specifically induced by means of bases or acids. The electrostatic repulsion which additionally becomes effective leads to an increase in the dispersion stability. The charges on the pigment are monitored by means of ESA measurements (electrokinetic sound amplitude). These ESA measurements make it possible to establish the order of addition of the dispersants and the optimum amount of codispersant.
摘要翻译：在制备磁性颜料在有机溶剂中的分散体时，使用具有空间稳定作用的分散剂。研磨会导致颜料聚集体的分离，其由于吸引力而再次结合，以在稳定性差的情况下产生二次聚集体。这些絮凝材料必须通过昂贵的过滤从分散体中除去。如果细度或颜料批量波动的增加导致二次附聚物的增加，则可能发生滤光器突破，导致磁记录介质的产率显着降低。发现当首先用长链分散剂预涂磁性颜料时，可获得优异的分散稳定性。随后，通过碱或酸特异性地诱导使用电荷产生的低分子量分散剂，颜料上的电荷积聚。另外变得有效的静电排斥导致分散稳定性的增加。通过ESA测量（电动声音振幅）监测颜料上的电荷。这些ESA测量使得可以确定分散剂的添加顺序和最佳的分散剂量。

4. 发明授权

US4981719A Process for the production of a magnetic recording material 失效
标题翻译：用于生产磁记录材料的方法
公开(公告)号：US4981719A
公开(公告)日：1991-01-01
申请号：US380114
申请日：1989-07-14
申请人： Horst Schulz , Hans-Heinrich Credner , Johannes Gerum , Werner Wimbersky
发明人： Horst Schulz , Hans-Heinrich Credner , Johannes Gerum , Werner Wimbersky
IPC分类号： C09D5/23 , C09D7/80 , G11B5/706 , G11B5/842
CPC分类号： G11B5/706 , G11B5/842
摘要： An improved process for the production of a magnetic recording material including a non-magnetic layer support and, cast thereon, a magnetic dispersion including a mixture of at least two different batches of finely divided magnetic pigments finely dispersed in a polymeric binder is characterized in that the magnetic pigment batches are separately finely dispersed in a polymeric binder and/or a dispersion aid and/or a solvent until the necessary degree of dispersion is reached, after which they are combined, optionally provided with further additives and applied to the layer support, the degree of dispersion of the magnetic dispersions preferably being continuously determined by a colorimetric arrangement.
摘要翻译：一种用于生产包括非磁性层载体的磁记录材料的改进方法，并且在其上铸造包括细分散在聚合物粘合剂中的至少两种不同批次的精细分散的磁性颜料的混合物的磁性分散体的特征在于，将磁性颜料批料分别细分散在聚合物粘合剂和/或分散助剂和/或溶剂中，直至达到必要的分散度，然后将它们组合，任选地提供另外的添加剂并施加到层载体上，优选通过比色装置连续测定磁性分散体的分散度。

5. 发明授权

US4275200A Process for the production of oxazolinone-2-compounds 失效
标题翻译：制备恶唑啉酮-2-化合物的方法
公开(公告)号：US4275200A
公开(公告)日：1981-06-23
申请号：US910624
申请日：1978-05-30
申请人： Fritz Benker , Hans-Heinrich Credner , Wolfgang Lassig , Ernst Meier , Siegfried Schleger
发明人： Fritz Benker , Hans-Heinrich Credner , Wolfgang Lassig , Ernst Meier , Siegfried Schleger
IPC分类号： C07C45/63 , C07C45/67 , C07C45/71 , C07C205/56 , C07D263/34 , C07D263/38 , G03C7/38 , C07D263/20 , C07D213/02 , C07D295/00
CPC分类号： C07D263/34 , C07C201/12 , C07C45/63 , C07C45/673 , C07C45/71 , C07D263/38 , G03C7/3815
摘要： The condensation of an .alpha.-halogen carbonyl compound with carbamic acid esters in the presence of a basic condensing agent and an aprotic solvent enables the production of oxazolinone-2-compounds in a high degree of purity, and in high yields in one step by using simple and readily available starting compounds.
摘要翻译：在碱性缩合剂和非质子溶剂的存在下，α-卤素羰基化合物与氨基甲酸酯的缩合使得能够以高纯度生产恶唑啉酮-2-化合物，并且通过使用简单易用的起始化合物。

6. 发明授权

US4198239A Color photographic materials containing an antistain agent 失效
标题翻译：含有防静电剂的彩色感光材料
公开(公告)号：US4198239A
公开(公告)日：1980-04-15
申请号：US829229
申请日：1977-08-31
申请人： Hans-Heinrich Credner , Rigobert Otto , Karl-Wilhelm Schranz
发明人： Hans-Heinrich Credner , Rigobert Otto , Karl-Wilhelm Schranz
IPC分类号： G03C7/26 , C07C67/00 , C07C231/00 , C07C233/24 , C07C233/25 , C07C239/00 , C07C271/28 , C07C301/00 , C07C309/51 , G03C7/392 , G03C1/06 , G03C7/00
CPC分类号： G03C7/39216
摘要： An improvement in the prevention color-fog and staining in color-photographic materials is obtained by the inclusion of acylamino substituted hydroquinones derivatives. The compounds can easily be synthesized do not crystalize from their dispersions and are not oxidized to colored by-products during development.
摘要翻译：通过包含酰基氨基取代的氢醌衍生物可以获得彩色照相材料中预防着色和染色的改善。化合物可以容易地合成，不会从它们的分散体结晶化，并且在显影期间不被氧化成有色副产物。

7. 发明授权

US4175968A Color photographic materials containing anti-fogging agents 失效
标题翻译：含防雾剂的彩色照相材料
公开(公告)号：US4175968A
公开(公告)日：1979-11-27
申请号：US925226
申请日：1978-07-17
申请人： Hans-Heinrich Credner , Karl-Wilhelm Schranz
发明人： Hans-Heinrich Credner , Karl-Wilhelm Schranz
IPC分类号： G03C7/392 , G03C1/40 , G03C1/06
CPC分类号： G03C7/39216
摘要： Undesired color fog obtained on color development of a color photographic material with a primary aromatic amino color developing agent may be reduced when the development is carried out in the presence of an antifogging agent (antistaining agent) of the formula ##STR1## in which R.sup.1 is an acyl group and R.sup.2 and R.sub.3 are (same or different) hydrogen, alkyl, halogen, sulfo or carboxyl.The antistaining agent is preferable incorporated in non-diffusible form in one or more of the layers of the photographic material.
摘要翻译：当在具有下式的防雾剂（抗静电剂）的存在下进行显影时，可以减少在具有主芳族氨基显色剂的彩色照相材料的显色时获得的不期望的着色雾，其中R1是酰基和R 2和R 3是（相同或不同的）氢，烷基，卤素，磺基或羧基。抗静电剂优选以不扩散形式并入照相材料的一个或多个层中。

8. 发明授权

US4062683A Photographic material containing 3-anilino-5-pyrazolylalkylcarbonate or arylcarbonate couplers 失效
标题翻译：含有3-苯胺基-5-吡唑基烷基碳酸酯或芳基碳酸酯成色剂的摄影材料
公开(公告)号：US4062683A
公开(公告)日：1977-12-13
申请号：US690584
申请日：1976-05-27
申请人： Marcel Jacob Monbaliu , Raphael Karel Van Poucke , Roger Henri Vrydaghs , Hans-Heinrich Credner , Ernst Meier
发明人： Marcel Jacob Monbaliu , Raphael Karel Van Poucke , Roger Henri Vrydaghs , Hans-Heinrich Credner , Ernst Meier
IPC分类号： G03C7/38 , C07D231/52 , C09B26/02 , G03C7/384 , G03C7/00 , G03C1/40
CPC分类号： C07D231/52 , G03C7/384
摘要： 3-Anilino-5-pyrazolyl alkylcarbonates and arylcarbonates are described for use in silver halide color photography as color coupler precursor compounds containing no active methylene group so that they do not take part in undesirable side-reactions before color development.
摘要翻译：描述了3-苯胺基-5-吡唑基烷基碳酸酯和芳基碳酸酯用于卤化银彩色摄影中，作为不含活性亚甲基的颜色成色剂前体化合物，使得它们在显色前不参与不期望的副反应。

9. 发明授权

US4061498A Photographic material containing 2-acyl-2-pyrazolin-5-on-couplers 失效
标题翻译：含有2-酰基-2-吡唑啉-5-酮的成色剂的摄影材料
公开(公告)号：US4061498A
公开(公告)日：1977-12-06
申请号：US690583
申请日：1976-05-27
申请人： Marcel Jacob Monbaliu , Marc Godfried Mannens , Raphael Karel Van Poucke , Hans-Heinrich Credner , Ernst Meier
发明人： Marcel Jacob Monbaliu , Marc Godfried Mannens , Raphael Karel Van Poucke , Hans-Heinrich Credner , Ernst Meier
IPC分类号： B41F9/06 , B41F13/18 , G03C1/40
CPC分类号： B41F13/18 , B41F9/06
摘要： 2-Acyl-3-pyrazolin-5-one couplers are provided for use in color photography which upon color development form 2-pyrazolin-5-one couplers capable of coupling with the oxidation products of the color developing agent.
摘要翻译：提供2-酰基-3-吡唑啉-5-酮成色剂用于彩色摄影，其在显影后能够与彩色显影剂的氧化产物偶联的2-吡唑啉-5-酮成色剂。

10. 发明授权

US5660760A Magnetic coating dispersion 失效
标题翻译：磁性涂料分散体
公开(公告)号：US5660760A
公开(公告)日：1997-08-26
申请号：US688216
申请日：1996-07-29
申请人： Attila Vass , Wolf-Dieter Schroeer , Hans-Heinrich Credner , Hildegard Fischer
发明人： Attila Vass , Wolf-Dieter Schroeer , Hans-Heinrich Credner , Hildegard Fischer
IPC分类号： G11B5/702 , G11B5/712
CPC分类号： G11B5/712 , G11B5/7028 , Y10S428/90
摘要： In the preparation of dispersions of magnetic pigments, it was found that excellent dispersion stability is achieved when compounds which are selected from the group consisting of quaternary ammonium compounds, guanidines, piperidines, alkylated or ethoxylated amines, diamines, polyamines or mixtures thereof, ethanolic KOH solutions, metal alkoxylates, Grignard compounds and certain metal hydrides are used as codispersants. The compounds are added in an amount of 0.15-4% by weight, based on the magnetic pigment.
摘要翻译：在制备磁性颜料的分散体时，发现当选自季铵化合物，胍胺，哌啶，烷基化或乙氧基化胺，二胺，多胺或其混合物的化合物，乙醇KOH 溶液，金属烷氧基化物，格利雅化合物和某些金属氢化物用作分散剂。相对于磁性颜料，化合物的添加量为0.15-4重量％。

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