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1. 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℃

2. 发明授权

US4140539A Hydrothermal process for producing dense iron oxide pigments 失效
标题翻译：水热法生产氧化铁的颜料
公开(公告)号：US4140539A
公开(公告)日：1979-02-20
申请号：US817079
申请日：1977-07-18
申请人： Franz Hund , Gunter Buxbaum , Lutz Leitner , Ingo Pflugmacher
发明人： Franz Hund , Gunter Buxbaum , Lutz Leitner , Ingo Pflugmacher
IPC分类号： C09C1/22 , C01G49/00 , C01G49/02 , C09C1/00 , C09C1/24 , G11B5/706 , C04B35/26
CPC分类号： C09C1/24 , G11B5/70647 , G11B5/70652 , G11B5/70673 , C01P2002/30 , C01P2006/42
摘要： An acicular to prismatic ferrimagnetic iron oxide pigment with a porosity of less than about 10% by volume, and optionally containing up to about 15% by weight of other metal oxides such as Zn or especially Co, are produced by heating a suspension of iron(III)oxide hydroxide in an autoclave to a temperature above about 100.degree. C in the presence of at least one mono-, di- or tri-saccharide, at least one alkali metal or alkaline earth metal hydroxide or carbonate and excess water, and washing, filtering and drying the resulting pigments.
摘要翻译：通过加热铁的悬浮液（以下）制备孔隙率小于约10体积％的针状至棱柱型亚铁磁性氧化铁颜料，并且任选地含有至多约15重量％的其它金属氧化物如Zn或特别是Co， III）氧化物氢氧化物在高于约100℃的温度下，在至少一种一糖，二糖或三糖，至少一种碱金属或碱土金属氢氧化物或碳酸盐和过量的水的存在下进行，并洗涤，过滤并干燥所得颜料。

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

US4369265A Readily dispersible silicone-coated finely divided solids 失效
标题翻译：易分散的有机硅涂层细碎的固体
公开(公告)号：US4369265A
公开(公告)日：1983-01-18
申请号：US160782
申请日：1980-06-18
申请人： Gunter Buxbaum , Ottfried Schlak , Franz Hund , Lutz Leitner
发明人： Gunter Buxbaum , Ottfried Schlak , Franz Hund , Lutz Leitner
IPC分类号： C09C1/24 , C09C3/00 , C09C3/12 , C09D5/23 , C09D9/00 , C09D11/00 , C09D11/02 , G11B5/706 , G11B5/712 , H01F1/06
CPC分类号： G11B5/70647 , C09C1/24 , C09C3/12 , G11B5/712 , H01F1/061 , C01P2004/84 , C01P2006/42 , Y10T428/2991 , Y10T428/2995
摘要： Readily dispersible finely divided solids such as pigments, coated with an organo-silicone polymer of the formula ##EQU1## wherein R.sup.I, R.sup.II, R.sup.III each independently is an optionally halogenated alkyl, alkenyl or aryl radical having from 1 to 10 carbon atoms;R.sup.IV is an alkyl or alkenyl radical having from 9 to 24 carbon atom;R.sup.V is an alkyl or alkenyl radical having from 1 to 8 carbon atoms;the sum of a+b+c is from 1 to about 1.95;d is a number from about 0.2 to 2;e and f each independently is a number from 0 to 1;the sum of d+e+f is from about 0.2 to 2; andthe sum of a+b+c+d+e+f is up to 3.
摘要翻译：易于分散的细分固体如颜料，涂覆有下式的有机硅聚合物：其中RI，RII，RIII各自独立地为具有1-10个碳原子的任意卤代的烷基，烯基或芳基; RIV是具有9-24个碳原子的烷基或烯基; RV是具有1至8个碳原子的烷基或烯基; a + b + c的和为1〜约1.95; d为约0.2至2的数; e和f各自独立地为0至1的数; d + e + f的和为约0.2〜2; 并且a + b + c + d + e + f的和高达3。

5. 发明授权

US4290799A Ferromagnetic metal pigment essentially consisting of iron and a process for its production 失效
标题翻译：基本上由铁组成的铁磁金属颜料及其生产方法
公开(公告)号：US4290799A
公开(公告)日：1981-09-22
申请号：US124399
申请日：1980-02-25
申请人： Gerhard Schroeder , Gunter Buxbaum , Franz Hund , Heinrich-Christian Schopper , Rolf Naumann
发明人： Gerhard Schroeder , Gunter Buxbaum , Franz Hund , Heinrich-Christian Schopper , Rolf Naumann
IPC分类号： B22F9/22 , B22F9/20 , G11B5/706 , H01F1/047 , H01F1/06 , B22F1/00
CPC分类号： H01F1/065 , G11B5/70615
摘要： A metal powder, suitable for magnetic recording, consisting essentially of iron, the individual particles being acicular and containing on average no more then 5 pores and consisting on average of no more than 2 metal cores is produced by precipitating and oxidizing an aqueous iron-(II)-salt solution to produce finely divided acicular iron-(III)-oxide-hydroxide, stabilizing it as by treatment with cadmium, lead, calcium, magnesium, zinc, aluminum, chromium, tungsten, a phosphorus oxide and/or a boron oxide, converting it into ferromagnetic iron oxide of low pore content, and reducing it to metallic iron with a gaseous reducing agent at about 300.degree. to 600.degree. C.
摘要翻译：一种适用于磁记录的金属粉末，主要由铁组成，单个颗粒是针状的并且平均包含不超过5个孔，平均不超过2个金属芯构成，通过沉淀和氧化铁 - （ II）盐溶液以产生细分的针状铁 - （III） - 氧化物氢氧化物，通过用镉，铅，钙，镁，锌，铝，铬，钨，磷氧化物和/或硼处理来稳定化氧化物，将其转化成低孔含量的铁磁性氧化铁，并在约300℃至600℃下用气态还原剂将其还原成金属铁。

6. 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.

7. 发明授权

US4264462A Stabilization of magnetite pigments with heterocyclic nitrogen compounds 失效
标题翻译：用杂环氮化合物稳定磁铁矿颜料
公开(公告)号：US4264462A
公开(公告)日：1981-04-28
申请号：US944501
申请日：1978-09-21
申请人： Gunter Buxbaum , Bernd Stephan , Franz Hund , Gerhard Schroeder
发明人： Gunter Buxbaum , Bernd Stephan , Franz Hund , Gerhard Schroeder
IPC分类号： C09C1/00 , C09C1/22 , C09C1/24 , C09C3/08 , G11B5/706 , H01F1/36 , B05D5/00
CPC分类号： G11B5/70689 , C09C1/24 , C09C3/08 , C01P2004/10 , C01P2004/54 , C01P2006/12 , C01P2006/37 , C01P2006/42
摘要： A finely divided magnetite pigment such as is used in magnetic tapes is stabilized against oxidation by contact with a heterocyclic nitrogen compound such as morpholine, triazole, piperazine or substitution products thereof. The heterocyclic compound can be applied as a solution or in vapor form.
摘要翻译：用于磁带的精细分散的磁铁矿颜料通过与杂环氮化合物如吗啉，三唑，哌嗪或其取代产物的接触而稳定而防止氧化。杂环化合物可以作为溶液或蒸气形式使用。

8. 发明授权

US4112063A Continuous production of iron oxide hydroxide 失效
标题翻译：连续生产氢氧化铁
公开(公告)号：US4112063A
公开(公告)日：1978-09-05
申请号：US747265
申请日：1976-12-03
申请人： Gunter Buxbaum , Franz Hund
发明人： Gunter Buxbaum , Franz Hund
IPC分类号： C01G49/02 , C01G49/06
CPC分类号： C01G49/06
摘要： In the production of an FeOOH seed suspension, comprising contacting an iron(II) salt solution with a basic precipitant to form a basic iron(II) salt or hydroxide suspension, oxidizing the salt or hydroxide, the precipitation and oxidation steps being carried out locally separate from one another and recovering a suspension of FeOOH, the improvement which comprises(a) effecting the precipitation by mixing an about 1 to 20% by weight iron(II) salt solution with sufficient basic precipitant to precipitate about 25 to 95 atom % of the iron(II),(b) at another location oxidizing 10 to 50% of the iron(II) precipitated in (a) over a period of from about 0.5 to 5 hours at a temperature in the range from about 20.degree. C to 65.degree. C,(c) at another location oxidizing the suspension obtained in (b) with intensive mixing over a period of from about 0.01 to 1 hour to oxidize at least about 10% more iron until up to at most about 60% of the iron(II) precipitated in stage (a) is oxidized, and(d) at another location substantially completely oxidizing the precipitated iron(II) still present over a period of from about 1 to 10 hours.Advantageously the temperature rises progressively from stage to stage. Immediately prior to stage (c) the suspension may be ripened for at least 30 minutes and, immediately after stage (c) it may be ripened for 30 minutes to 5 hours.
摘要翻译：在制备FeOOH种子悬浮液时，包括使铁（II）盐溶液与碱性沉淀剂接触以形成碱式铁（II）盐或氢氧化物悬浮液，氧化盐或氢氧化物，沉淀和氧化步骤在本地进行彼此分离并回收FeOOH的悬浮液，其改进包括（A）通过用足量的碱性沉淀剂将约1至20重量％的盐溶液与约25至95原子％的沉淀物相混合来实现降解铁（II），（b）在另一个位置处氧化10〜50％的（a）中铁（II），在约0.5〜5小时的时间内，在约20〜 65℃，（c）在另一个位置上氧化在（b）中获得的悬浮液，强化混合约0.01至1小时，以氧化至少约10％的铁直至最多至多约60％在阶段（a）中析出的铁（II）被氧化，（D）AT 另外另外一个地方，大约在1到10小时的时间内完全氧化还原铁（II）。

9. 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。

10. 发明授权

US4589906A Inorganic depot fertilizers 失效
标题翻译：无机贮库肥料
公开(公告)号：US4589906A
公开(公告)日：1986-05-20
申请号：US479772
申请日：1983-03-28
申请人： Horst Brunn , Johannes Niggemann , Peter Kohler , Franz Hund
发明人： Horst Brunn , Johannes Niggemann , Peter Kohler , Franz Hund
IPC分类号： C05D9/02 , C05D11/00 , A01N59/00
CPC分类号： C05D9/02
摘要： A depot fertilizer composition comprising an inorganic matrix and another inorganic and/or organic component of the formulaX Me(II)O.[(1-x)/2]Me(III).sub.2 O.sub.3.YA.zI.aqin whichMe (II) is at least one divalent metal,Me(III) is at least one trivalent metal,A is at least one inorganic acid or anhydride of an inorganic acid,I is at least one organic compound,aq is 0-9,X is from 0 to 1,Y is from 0.5 to 0.7, andZ is from 0 to 20,at least one of the components containing a plant nutrient element. The compositions are suited for fertilizing the leaves or full systems of plants growing in soil or in water.
摘要翻译：一种贮存肥料组合物，其包含无机基质和式X Me（II）O。[（1-x）/ 2] Me（III）2 O 3 .YA.zI.aq的另一种无机和/或有机组分，其中Me（ II）是至少一种二价金属，Me（III）是至少一种三价金属，A是至少一种无机酸的无机酸或酸酐，I是至少一种有机化合物，aq是0-9，X是 0至1，Y为0.5至0.7，Z为0至20，至少一种组分含有植物营养元素。所述组合物适合于对在土壤或水中生长的植物的叶子或全部系统施肥。

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