专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 发明授权

US4014710A Magnetic pigments with improved orientability and a process for their production 失效
标题翻译：具有改善定向性的磁性颜料及其生产方法
公开(公告)号：US4014710A
公开(公告)日：1977-03-29
申请号：US489665
申请日：1974-07-18
申请人： Peter Woditsch , Franz Hund , Gunter Buxbaum , Volker Hahnkamm , Ingo Pflugmacher
发明人： Peter Woditsch , Franz Hund , Gunter Buxbaum , Volker Hahnkamm , Ingo Pflugmacher
IPC分类号： C01G49/00 , C01G49/02 , C09C1/00 , C09C1/22 , C09C1/24 , C09C3/12 , C09D5/23 , C09D7/12 , G11B5/706 , H01F1/11
CPC分类号： G11B5/70673 , C01G49/02 , C09C1/24 , G11B5/70657 , G11B5/70663 , G11B5/70668 , C01P2002/50 , C01P2002/82 , C01P2004/10 , C01P2006/42
摘要： An acicular, magnetic iron oxide pigment containing about 0.05 to 5% by weight of an organo silicon compound is produced by treating iron oxide hydroxide seeds either dry or in suspension with an organo silicon compound. Preferred organo silicon compounds comprise polymethylphenylsiloxane, polydimethylsiloxane and polydiphenylsiloxane. Trivalent metal ions may subsequently be deposited. The resulting pigments show only minimal losses of coercive force during processing into magnetic tapes.
摘要翻译：通过用有机硅化合物处理干燥或悬浮的铁氧化物氢氧化物种子，制造含有约0.05至5重量％的有机硅化合物的针状磁性氧化铁颜料。优选的有机硅化合物包括聚甲基苯基硅氧烷，聚二甲基硅氧烷和聚二苯基硅氧烷。随后可以沉积三价金属离子。所得到的颜料在加工成磁带期间仅表现出最小的矫顽力损失。

2. 发明授权

US4323596A Coating iron oxide particles for magnetic recording 失效
标题翻译：涂覆用于磁记录的氧化铁颗粒
公开(公告)号：US4323596A
公开(公告)日：1982-04-06
申请号：US21870
申请日：1979-03-19
申请人： Gunter Buxbaum , Ingo Pflugmacher , Franz Hund , Volker Hahnkamm , Peter Woditsch
发明人： Gunter Buxbaum , Ingo Pflugmacher , Franz Hund , Volker Hahnkamm , Peter Woditsch
IPC分类号： G11B5/712 , C01G49/00 , C01G49/02 , C09D5/23 , C09D7/12 , C09D9/04 , G11B5/706 , H01F1/11 , B22F1/02 , G11B5/62
CPC分类号： G11B5/70657 , G11B5/70663 , G11B5/70668 , Y10S428/90 , Y10T428/25 , Y10T428/257 , Y10T428/261 , Y10T428/2991
摘要： In the preparation of highly orientatable needle-shaped ferrimagnetic iron oxide particles by the reduction and reoxidation of needle-shaped particles of hydrated oxide of iron which have been surface treated against sintering the improvement which comprises effecting the surface treatment by applying to the particles of hydrated oxide of iron one layer of oxygen-containing anions and a further layer of polyvalent cations, each layer weighing about 0.02 to 2% by weight of the particle. Advantageously, the polyvalent cation-containing layer is applied between two oxygen-containing anion layers, the oxygen-containing anions used are selected from the group consisting of silicate, phosphate, borate, vanadate, molybdate and tungstate, the polyvalent cations used are selected from the group consisting of aluminum, chromium, manganese, iron and gallium, each layer weighs about 0.1 to 1% of the weight of the particles and before the reduction and reoxidation the surface treated particles of hydrated oxide of iron are tempered at a temperature of about 600.degree. to 900.degree. C.
摘要翻译：在通过还原和再氧化已经对烧结进行表面处理的铁的水合氧化物的针状颗粒的还原和再氧化制备高度取向的针状亚铁磁性氧化铁颗粒时，其改进包括通过施加到水合物的颗粒进行表面处理铁氧化物一层含氧阴离子和另一层多价阳离子，每层重量为颗粒重量的约0.02至2重量％。有利地，将多价阳离子层施加在两个含氧阴离子层之间，所用的含氧阴离子选自硅酸盐，磷酸盐，硼酸盐，钒酸盐，钼酸盐和钨酸盐，所使用的多价阳离子选自由铝，铬，锰，铁和镓组成的组，各层重量为颗粒重量的约0.1至1％，在还原和再氧化之前，表面处理的铁水合氧化物颗粒在约 600〜900℃

3. 发明授权

US4400432A Coating iron oxide particles for magnetic recording 失效
公开(公告)号：US4400432A
公开(公告)日：1983-08-23
申请号：US305577
申请日：1981-09-24
申请人： Gunter Buxbaum , Ingo Pflugmacher , Franz Hund , Volker Hahnkamm , Peter Woditsch
发明人： Gunter Buxbaum , Ingo Pflugmacher , Franz Hund , Volker Hahnkamm , Peter Woditsch
IPC分类号： G11B5/712 , C01G49/00 , C01G49/02 , C09D5/23 , C09D7/12 , C09D9/04 , G11B5/706 , H01F1/11 , B32B5/16 , B22F1/02 , G11B5/62
CPC分类号： G11B5/70657 , G11B5/70663 , G11B5/70668 , Y10S428/90 , Y10T428/25 , Y10T428/257 , Y10T428/261 , Y10T428/2991
摘要： In the preparation of highly orientatable needle-shaped ferrimagnetic iron oxide particles by the reduction and reoxidation of needle-shaped particles of hydrated oxide of iron which have been surface treated against sintering the improvement which comprises effecting the surface treatment by applying to the particles of hydrated oxide of iron one layer of oxygen-containing anions and a further layer of polyvalent cations, each layer weighing about 0.02 to 2% by weight of the particle. Advantageously, the polyvalent cation-containing layer is applied between two oxygen-containing anion layers, the oxygen-containing anions used are selected from the group consisting of silicate, phosphate, borate, vanadate, molybdate and tungstate, the polyvalent cations used are selected from the group consisting of aluminum, chromium, manganese, iron and gallium, each layer weighs about 0.1 to 1% of the weight of the particles and before the reduction and reoxidation the surface treated particles of hydrated oxide of iron are tempered at a temperature of about 600.degree. to 900.degree. C.

4. 发明授权

US3931025A Magnetic iron oxides with improved orientability and a process for their production 失效
标题翻译：具有改进方向性的磁铁氧化物及其生产工艺
公开(公告)号：US3931025A
公开(公告)日：1976-01-06
申请号：US501740
申请日：1974-08-29
申请人： Peter Woditsch , Gunter Buxbaum , Franz Hund , Volker Hahnkamm
发明人： Peter Woditsch , Gunter Buxbaum , Franz Hund , Volker Hahnkamm
IPC分类号： C09C1/22 , C01G49/00 , C01G49/02 , C01G49/08 , C09C1/00 , C09C1/24 , C09D5/23 , G11B5/706 , H01F1/11 , C01G49/06
CPC分类号： C09C1/24 , G11B5/70642 , G11B5/70647 , G11B5/70652 , G11B5/70663 , G11B5/70668 , G11B5/70673 , C01P2002/52 , C01P2006/42
摘要： An acicular, magnetic iron oxide pigment containing about 0.1 to 2 percent by weight of zinc and phosphate ions is produced by growing seeds and subsequently reducing and optionally reoxidizing acicular FeOOH. Said seeds were formed by precipitation from an iron (II) salt solution in the presence of about 0.1 to 4 percent by weight of zinc ions and about 0.1 to 2 percent by weight of phosphate ions based on the formed seeds.

5. 发明授权

US3974079A Production of gamma iron oxide 失效
标题翻译：生产γ氧化铁
公开(公告)号：US3974079A
公开(公告)日：1976-08-10
申请号：US412488
申请日：1973-11-02
申请人： Peter Woditsch , Kurt Hill , Franz Hund , Fritz Rodi
发明人： Peter Woditsch , Kurt Hill , Franz Hund , Fritz Rodi
IPC分类号： C01G49/06 , C09C1/24 , G11B5/706 , H01F1/113
CPC分类号： H01F1/113 , C01G49/06 , C09C1/24 , G11B5/70647 , G11B5/70652 , G11B5/70663 , C01P2004/10 , C01P2004/54 , C01P2004/62 , C01P2006/42 , C01P2006/80
摘要： Process for producing ferromagnetic iron oxides whereby a solution of a ferrous salt is oxidized in the presence of .alpha.-FeO(OH) seed, a basic precipitant, and phosphoric acid or a water soluble salt thereof to form .alpha.-FeO(OH), which can be dehydrated, optionally tempered, reduced and re-oxidized to needle-shaped .gamma.-Fe.sub.2 O.sub.3. The resulting product has high coercive force values which make it especially useful for magnetic impulse recording and reproduction.
摘要翻译：制备铁磁性氧化铁的方法，其中亚铁盐溶液在α-FeO（OH）种子，碱性沉淀剂和磷酸或其水溶性盐的存在下被氧化以形成α-FeO（OH），其中可以脱水，任选回火，还原和再氧化成针状γ-Fe2O3。所得到的产品具有高的矫顽力值，使其对于磁脉冲记录和再现特别有用。

6. 发明授权

US06395661B2 Sintered silicon nitride, components made therewith, specially valves, methods for the production and use thereof 失效
标题翻译：烧结氮化硅，由其制成的部件，特别是阀门，用于生产和使用它们的方法
公开(公告)号：US06395661B2
公开(公告)日：2002-05-28
申请号：US09402403
申请日：1999-10-04
申请人： Gerhard Wötting , Ernst Gugel , Hans Andreas Lindner , Peter Woditsch
发明人： Gerhard Wötting , Ernst Gugel , Hans Andreas Lindner , Peter Woditsch
IPC分类号： C04B35587
CPC分类号： C04B35/584 , C04B35/5935
摘要： A sintered Si3N4 material, valves and components made with the material, and methods for making same.
摘要翻译：烧结Si3N4材料，用该材料制成的阀门和部件及其制造方法。

7. 发明授权

US4525334A Process for the production of silicon 失效
标题翻译：生产硅的工艺
公开(公告)号：US4525334A
公开(公告)日：1985-06-25
申请号：US589204
申请日：1984-03-13
申请人： Peter Woditsch , Martin Abels , Berthold Brazel
发明人： Peter Woditsch , Martin Abels , Berthold Brazel
IPC分类号： C01B33/02 , C01B33/027 , C01B33/033 , C01B33/00
CPC分类号： C01B33/033
摘要： A process for the production of silicon comprising reacting a gaseous silicon compound of the formula SiH.sub.n X.sub.4-n, wherein X is halogen and n is 0 to 3, with aluminum in solid state. The resulting silicon can be highly pure and will have the particle size of the aluminum feed, making it especially useful for production of solar cells.
摘要翻译：一种制备硅的方法，包括使式SiHnX4-n的气态硅化合物（其中X为卤素且n为0至3）与固态的铝反应。所得到的硅可以是高纯度的，并且具有铝进料的粒度，使其特别适用于生产太阳能电池。

8. 发明授权

US4304758A Hydrolyzable titanyl sulphate solutions by decomposition of ternary raw material mixtures 失效
标题翻译：通过三元原料混合物的分解可水解的硫酸氧钛溶液
公开(公告)号：US4304758A
公开(公告)日：1981-12-08
申请号：US213540
申请日：1980-12-05
申请人： Hilmar Rieck , Walter Gutsche , Peter Woditsch , Peter Panek
发明人： Hilmar Rieck , Walter Gutsche , Peter Woditsch , Peter Panek
IPC分类号： C01G23/00 , C22B34/12 , C01G23/053
CPC分类号： C22B34/125 , C01G23/008
摘要： A process for the preparation of a hydrolyzable titanyl sulphate solution comprising adding sulphuric acid having a concentration greater than about 86% to a ternary mixture of two slags and an ilmenite to bring the proportion by weight of H.sub.2 SO.sub.4 to TiO.sub.2 to from about 1.7:1 to 2.2:1 and adding water, dilute sulphuric acid or oleum in amount sufficient to bring the H.sub.2 SO.sub.4 concentration to from about 86 to 96%, thereby to form the titanyl sulphate solution, the first slag having a TiO.sub.2 content greater than about 80% and a Ti(III) content of about 22 to 40%, the second slag having a TiO.sub.2 content of about 60 to 80% and a Ti(III) content of about 5 to 15%, and the ilmenite having a ratio of Fe(III) to Fe(II) of from about 1:1 to 10:1, the slags and ilmenite being present in such proportions that the ternary mixture of raw materials obtained has a molar ratio of Ti(III) to Fe(III).gtoreq.1.4.
摘要翻译：一种制备可水解硫酸氧钛溶液的方法，其包括将浓度大于约86％的硫酸添加到两种炉渣和钛铁矿的三元混合物中，以使H 2 SO 4的重量比例从约1.7:1提高到约1.7:1至 2.2:1，并加入水，稀硫酸或发烟硫酸，其量足以使H 2 SO 4浓度达到约86％至96％，从而形成硫酸氧钛溶液，第一炉渣的TiO 2含量大于约80％，并且 Ti（III）含量为约22〜40％，第二炉渣的TiO 2含量为约60〜80％，Ti（III）含量为5〜15％左右，钛铁矿的Fe（III）对于Fe（II）为约1：1至10：1，炉渣和钛铁矿以以下比例存在：获得的原料的三元混合物具有Ti（III）与Fe（III）的摩尔比> 1.4。

9. 发明授权

US4179306A Stabilizing titanium dioxide pigments with vanadates 失效
标题翻译：用钒酸盐稳定二氧化钛颜料
公开(公告)号：US4179306A
公开(公告)日：1979-12-18
申请号：US913711
申请日：1978-06-08
申请人： Peter Woditsch , Eckhard Bayer , Peter Panek , Heribert Stutgens
发明人： Peter Woditsch , Eckhard Bayer , Peter Panek , Heribert Stutgens
IPC分类号： C09C1/36 , G04B31/02
CPC分类号： C09C1/3661 , C01P2004/84 , C01P2006/60
摘要： A process for the production of a light-stable and weather-stable titanium dioxide pigment comprising precipitating onto the pigment in aqueous suspension a colorless vanadate of at least one of zinc, magnesium, calcium, strontium and barium at a pH-value above 7 in about 0.01 to 5% by weight, expressed as V.sub.2 O.sub.5, based on TiO.sub.2. Advantageously the pigment either before or after precipitation of the vanadate is coated with at least one oxide, oxide hydrate or phosphate of titanium, silicon, aluminum or zirconium.
摘要翻译：一种用于生产光稳定和天气稳定的二氧化钛颜料的方法，其包括在水性悬浮液中在pH值高于7的情况下将至少一种锌，镁，钙，锶和钡的无色钒酸盐沉淀在颜料上，约0.01至5重量％，以V 2 O 5表示，基于TiO 2。有利地，在钒酸盐沉淀之前或之后，颜料涂覆有至少一种钛，硅，铝或锆的氧化物，氧化物水合物或磷酸盐。

10. 发明授权

US4093777A Coated stabilized cadmium chalcogenide pigments 失效
标题翻译：涂层稳定的镉硫属化物颜料
公开(公告)号：US4093777A
公开(公告)日：1978-06-06
申请号：US620092
申请日：1975-10-06
申请人： Heinrich Heine , Peter Woditsch , Theodor Bohmann , Dieter Rade
发明人： Heinrich Heine , Peter Woditsch , Theodor Bohmann , Dieter Rade
IPC分类号： C01B19/00 , C01G11/00 , C09C1/10 , B32B9/04
CPC分类号： C09C1/10 , C01B19/007 , C01G11/00 , C01P2006/80 , Y10T428/2991 , Y10T428/2993 , Y10T428/2998 , Y10T428/31667
摘要： A stabilized cadmium chalcogenide, in which optionally zinc and/or mercury is present in the lattice, carrying at least one coating of a sparingly-soluble sulfide is produced by adding at least one water-soluble salt of an element forming a sparingly-soluble sulfide to an aqueous chalcogenide suspension, mixing with a compound releasing sulfide ions and/or mixing the cadmium chalcogenide suspension with a soluble thio-compound of an element forming a sparingly-soluble sulfide thereby to precipitate a sparingly-soluble sulfide onto the chalcogenide, subsequently filtering, optionally washing, drying and annealing the aftertreated chalcogenide. Suitable sparingly-soluble sulfides are, for example, the sulfides of the elements Zn, Hg, In, Sn, Pb, As, Sb, Bi, V, Mo, W, Cu and Ag.
摘要翻译：稳定的镉硫族化物，其中任选地锌和/或汞存在于晶格中，携带至少一种微溶于硫化物的涂层，通过加入至少一种形成微溶的硫化物的元素的水溶性盐与硫酸氢盐水溶液混合，和/或将硫属镉硫化物悬浮液与形成微溶性硫化物的元素的可溶性硫代化合物混合，从而将少量溶解的硫化物沉淀到硫族化物上，随后过滤，任选地对后处理的硫属化物进行洗涤，干燥和退火。合适的微溶硫化物是例如元素Zn，Hg，In，Sn，Pb，As，Sb，Bi，V，Mo，W，Cu和Ag的硫化物。

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式