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1. 发明授权

US4180597A Manufacture of magnetic recording media 失效
标题翻译：制造磁记录介质
公开(公告)号：US4180597A
公开(公告)日：1979-12-25
申请号：US940462
申请日：1978-09-08
申请人： Herbert Motz , Norbert Schneider , Hans-Joerg Hartmann , Reinhold Baur
发明人： Herbert Motz , Norbert Schneider , Hans-Joerg Hartmann , Reinhold Baur
IPC分类号： G11B5/708 , C09D5/23 , G11B5/70 , H01F10/02
CPC分类号： G11B5/7013 , Y10S428/90
摘要： A process for the manufacture of a magnetic recording medium by producing a dispersion of a finely divided anisotropic magnetic material and conventional additives in a solution of a polymeric binder in an organic solvent, applying a layer of the dispersion to a nonmagnetizable base material, then orienting the anisotropic magnetic material by means of a magnetic field, and drying the layer, wherein a compound of the formula (I) ##STR1## where R.sup.1 is straight-chain or branched akyl of 2 to 10 carbon atoms, cycloalkyl of 6 to 10 carbon atoms or aralkyl of 7 to 14 carbon atoms and R.sup.2 is hydrogen or one of the radicals given in the definition of R.sup.1, is added to the dispersion.
摘要翻译：一种通过在聚合物粘合剂在有机溶剂中的溶液中制备精细分散的各向异性磁性材料和常规添加剂的分散体来制造磁记录介质的方法，将一层分散体施加到不可磁化的基材上，然后定向通过磁场对各向异性磁性材料进行干燥，并干燥该层，其中式（I）的化合物其中R 1是2至10个碳原子的直链或支链烷基，6个环烷基至10个碳原子或7至14个碳原子的芳烷基，并且R 2是氢或R1的定义中给出的一个基团加入到分散体中。

2. 发明授权

US4058646A Magnetic recording media containing elastomeric polyurethane binders in the magnetic coating 失效
标题翻译：在磁性涂层中含有弹性聚氨酯粘合剂的磁记录介质
公开(公告)号：US4058646A
公开(公告)日：1977-11-15
申请号：US609561
申请日：1975-09-02
申请人： Guenter Vaeth , Rudolf Bachmann , Heinrich Hartmann , Hans-Joerg Hartmann , Herbert Spoor , Karl Uhl , August Lehner , Winfried Gutermann , Herbert Motz
发明人： Guenter Vaeth , Rudolf Bachmann , Heinrich Hartmann , Hans-Joerg Hartmann , Herbert Spoor , Karl Uhl , August Lehner , Winfried Gutermann , Herbert Motz
IPC分类号： C08G18/00 , C08G18/65 , C08G18/66 , C09D5/23 , G11B5/702 , H01F10/02
CPC分类号： C08G18/6607 , C08G18/6611 , G11B5/7021 , Y10S428/90 , Y10T428/31565 , Y10T428/31591 , Y10T428/31605 , Y10T428/31609
摘要： The invention relates to magnetic recording media comprising a non-magnetic base and, applied thereto, a firmly adhering magnetic coating based on a finely divided magnetic pigment dispersed in a binder which contains at least 50 percent by weight of a special polyurethane elastomer.This polyurethane elastomer is a thermoplastic polyurethane which is soluble in tetrahydrofuran and free from isocyanate groups, and which has been manufactured from (A) 1 mole of one or more hydroxyl-containing polyesters and/or hydroxyl-containing polyethers of molecular weight from 600 to 4,000, (B) from 3.5 to 15 moles of a branched-chain aliphatic diol of 4 to 10 carbon atoms or a mixture of aliphatic diols of 2 to 10 carbon atoms, of which at least 50 mole percent is a branched-chain aliphatic diol of 4 to 10 carbon atoms, (C) from 0 to 1 mole, but not more than 15 mole percent of the aliphatic diols according to B, of an aliphatic polyol with from 3 to 6 OH groups and 3 to 18 carbon atoms, and (D) from 4.5 to 18 moles of a diisocyanate of 6 to 30 carbon atoms, the amount of NCO groups being approximately equivalent to the amount of OH groups of the sum of the components A to C.Magnetic recording media which contain such a polyurethane in the magnetic coating are distinguished by high surface hardness coupled with a markedly improved orientation ratio, a higher packing density and more uniform dispersion of the magnetic particles in the coating.
摘要翻译：本发明涉及包含非磁性基底的磁记录介质，并施加到基于分散在粘合剂中的细分散的磁性颜料的牢固粘附的磁性涂层，其含有至少50重量％的特殊聚氨酯弹性体。

3. 发明授权

US4005242A Magnetic recording medium containing lubricants 失效
标题翻译：含有润滑剂的磁记录介质
公开(公告)号：US4005242A
公开(公告)日：1977-01-25
申请号：US536008
申请日：1974-12-23
申请人： Helmut Kopke , Hans-Joerg Hartmann , Dieter Mayer , Herbert Motz
发明人： Helmut Kopke , Hans-Joerg Hartmann , Dieter Mayer , Herbert Motz
IPC分类号： G11B5/708 , C08L83/12 , C08L101/00 , C09D5/23 , C09D7/12 , G11B5/71 , C08G77/42 , H01F1/26
CPC分类号： G11B5/71 , C08L101/00 , C08L83/12 , Y10S428/90 , Y10T428/31565 , Y10T428/3158 , Y10T428/31598 , Y10T428/31609 , Y10T428/31663
摘要： A magnetic recording medium consists of a non-magnetic base, on which the magnetic coating is a layer of a dispersion, containing a lubricant, of a magnetic pigment in a polymeric binder. The lubricant is a block copolymer which contains siloxane units and alkyleneoxy units of 2 to 4 carbon atoms, the alkyleneoxy units being bonded to the polysiloxane radical through a Si--O--C or Si--C group. The use of this lubricant gives a magnetic recording medium which has the advantages of good fluid lubrication and an excellent coefficient of friction which does not vary with time.
摘要翻译：磁记录介质由非磁性基底组成，磁性涂层是含有润滑剂的分散体层，其中聚合物粘合剂中的磁性颜料。润滑剂是含有硅氧烷单元和2〜4个碳原子的亚烷基氧基单元的嵌段共聚物，亚烷氧基单元通过Si-O-C或Si-C基团键合到聚硅氧烷基团上。使用这种润滑剂产生磁记录介质，该介质具有良好的流体润滑性和优异的摩擦系数，并不随时间变化。

4. 发明授权

US4320171A Magnetic recording media containing elastomeric polyurethane binders in the magnetic coating 失效
标题翻译：在磁性涂层中含有弹性聚氨酯粘合剂的磁记录介质
公开(公告)号：US4320171A
公开(公告)日：1982-03-16
申请号：US150749
申请日：1980-05-19
申请人： Herbert Motz , August Lehner , Heinrich Hartmann , Rudolf Bachmann , Hans-Joerg Hartmann , Harald Frischmann , Roland Falk , Joachim Hack , Milan Velic , Helmut Kopke
发明人： Herbert Motz , August Lehner , Heinrich Hartmann , Rudolf Bachmann , Hans-Joerg Hartmann , Harald Frischmann , Roland Falk , Joachim Hack , Milan Velic , Helmut Kopke
IPC分类号： C08G18/66 , C09D5/23 , G11B5/702 , B32B27/40 , B32B5/16
CPC分类号： C08G18/6644 , G11B5/7021 , Y10S428/90 , Y10T428/31551 , Y10T428/31565 , Y10T428/31591 , Y10T428/31609
摘要： Magnetic recording media comprising a non-magnetic base and, applied thereto, a firmly adhering magnetic coating based on a finely divided magnetic pigment dispersed in a binder which contains at least 50 percent by weight of a special polyurethane elastomer, namely a thermoplastic polyurethane which is soluble in tetrahydrofuran, is free from isocyanate groups and has been manufactured from (A) 1 mole of a hydroxyl-containing polyester having a molecular weight of from 700 to 2,500, (B) from 0.3 to 3 moles of a linear aliphatic diol of 2 to 10 carbon atoms, (C) from 0.05 to 0.4 mole of a triol of 3 to 10 carbon atoms, and (D) from 1.35 to 4.7 moles of a diisocyanate of 6 to 30 carbon atoms, the amount of NCO groups being approximately equivalent to the amount of OH groups of the sum of components (A) to (C).
摘要翻译：磁性记录介质包括非磁性基底，并施加于基于分散在粘合剂中的细碎磁性颜料的牢固粘附的磁性涂层，所述磁性颜料含有至少50重量％的特殊聚氨酯弹性体，即热塑性聚氨酯，其为可溶于四氢呋喃中，不含异氰酸酯基团，并且由（A）1摩尔分子量为700至2,500的含羟基的聚酯制成，（B）为0.3-3摩尔的直链脂族二醇为2 至10个碳原子，（C）0.05至0.4摩尔3至10个碳原子的三醇，和（D）1.35至4.7摩尔的6至30个碳原子的二异氰酸酯，NCO基团的量约等于相对于组分（A）至（C）的总和的OH基团的量。

5. 发明授权

US4152484A Magnetic recording media 失效
标题翻译：磁记录媒体
公开(公告)号：US4152484A
公开(公告)日：1979-05-01
申请号：US819820
申请日：1977-07-28
申请人： Rudolf Bachmann , Hans-Joerg Hartmann , Herbert Motz
发明人： Rudolf Bachmann , Hans-Joerg Hartmann , Herbert Motz
IPC分类号： C08L75/04 , G11B5/702 , H01F10/02
CPC分类号： G11B5/7022 , C08L75/04 , Y10S428/90 , Y10T428/31565 , Y10T428/3158 , Y10T428/31609 , Y10T428/31935
摘要： This invention relates to magnetic recording media comprising a non-magnetic base and a magnetic coating firmly bonded thereto, which coating consists essentially of a dispersion of a finely divided magnetic pigment in a polyurethane-containing mixture of binders. This binder mixture contains from 30 to 90% by weight of an elastomeric polyurethane which is virtually free from isocyanate groups and is soluble in a volatile organic solvent, and from 10 to 70% by weight of a vinyl chloride copolymer containing from 5 to 50% by weight of polymerized units of a monoester obtained from an aliphatic diol of from 2 to 4 carbon atoms and acrylic or methacrylic acid. Magnetic recording media having a magnetic coating containing this binder mixture are distinguished by advantageous mechanical and electrical properties, in particular by good abrasion resistance and improved packing density combined with better orientation of the magnetic particles.
摘要翻译：本发明涉及包含非磁性基体和牢固地结合到其上的磁性涂层的磁记录介质，该涂层基本上由细分散的磁性颜料在含聚氨酯的粘合剂混合物中的分散体组成。该粘合剂混合物含有30至90重量％的基本上不含异氰酸酯基并且可溶于挥发性有机溶剂的弹性体聚氨酯，和10至70重量％的含有5至50重量％的由2至4个碳原子的脂族二醇获得的单酯和丙烯酸或甲基丙烯酸的聚合单元。具有包含该粘合剂混合物的磁性涂层的磁记录介质的特征在于有利的机械和电学性能，特别是通过良好的耐磨性和改善的填充密度以及磁性颗粒的更好取向的组合。

6. 发明授权

US4046932A Magnetic recording discs 失效
标题翻译：磁记录盘
公开(公告)号：US4046932A
公开(公告)日：1977-09-06
申请号：US656182
申请日：1976-02-09
申请人： Hans-Joerg Hartmann , Roland Falk , Peter Gawlik , Werner Balz , Karl Uhl , Dieter Schaefer , Herbert Motz
发明人： Hans-Joerg Hartmann , Roland Falk , Peter Gawlik , Werner Balz , Karl Uhl , Dieter Schaefer , Herbert Motz
IPC分类号： G11B5/702 , H01F10/02
CPC分类号： G11B5/7023 , Y10S428/90 , Y10T428/254 , Y10T428/257 , Y10T428/269 , Y10T428/31529
摘要： The invention relates to a process for the manufacture of improved magnetic discs by applying a thin layer of a liquid dispersion of magnetic pigments and optionally further, non-magnetic, pigments in a binder mixture to a non-magnetic rigid base, and curing the magnetic coating which has been applied. The binder used is a mixture of polycondensates comprising 60 to 70% by weight of a solid curable polycondensate of 2,2-bis(4-hydroxyphenyl)-propane and epichlorohydrin having an epoxy equivalent weight from about 400 to 2,500 and a melting point from about 50.degree. to 150.degree. C, 10 to 30% by weight of a curable allyloxybenzene-formaldehyde condensate of the resol type with free methylol groups or with methylol groups etherified with a lower alcohol, and having a molecular weight of less than 1,000, and 10 to 30% by weight of a curable melamine-formaldehyde condensate with more than two methylol groups etherified with n-butanol or iso-butanol, and having a molecular weight of less than 2,500. A magnetic dispersion using such a binder allows the application of a firmly adhering magnetic coating, even in thicknesses of less than 4 .mu., to aluminum discs or pre-coated aluminum discs, and the magnetic coating produced has high resistance to mechanical wear.
摘要翻译：本发明涉及通过将粘性混合物中的磁性颜料和任选的另外的非磁性颜料的液体分散体的薄层施加到非磁性刚性基底上来制造改进的磁盘的方法，以及固化磁性已涂覆的涂层。使用的粘合剂是包含60至70重量％的环氧当量为约400至2,500的2,2-双（4-羟基苯基） - 丙烷和表氯醇的固体可固化缩聚物的缩聚物混合物，熔点为约50〜150℃，10〜30重量％的甲阶型固化性烯丙氧基苯 - 甲醛缩合物与游离羟甲基或与低级醇醚化的羟甲基，分子量小于1,000，以及 10至30重量％的可固化的三聚氰胺 - 甲醛缩合物，其具有用正丁醇或异丁醇醚化的两个以上羟甲基，分子量小于2500。使用这种粘合剂的磁性分散体允许对铝盘或预涂铝盘施加甚至厚度小于4微米的牢固粘附的磁性涂层，并且所产生的磁性涂层具有高的耐机械磨损性。

7. 发明授权

US4048375A Magnetic recording media of improved mechanical resistance 失效
标题翻译：提高机械阻力的磁记录介质
公开(公告)号：US4048375A
公开(公告)日：1977-09-13
申请号：US708603
申请日：1976-07-26
申请人： Gustav Loewenberg , Hans-Joerg Hartmann , Dieter Schaefer , Herbert Motz , Helmut Jakusch
发明人： Gustav Loewenberg , Hans-Joerg Hartmann , Dieter Schaefer , Herbert Motz , Helmut Jakusch
IPC分类号： G11B5/708 , C09D5/23 , C09D7/12 , C09D131/02 , C09D177/00 , C09D177/06 , G11B5/70 , G11B5/702 , H01F10/02
CPC分类号： G11B5/7028 , G11B5/70 , Y10S428/90 , Y10T428/31736 , Y10T428/31765
摘要： Magnetic recording media consisting of a non-magnetic base and, applied thereto, a firmly adhering magnetic coating based on finely divided magnetic pigment dispersed in organic binders, which coating contains, according to the invention, salts of long-chain basic polyaminoamides with high molecular weight organic acid esters.Such magnetic recording media exhibit improved mechanical resistance and improved adhesion of the coating to the base, coupled with advantageous electromagnetic properties.
摘要翻译：由非磁性基底组成的磁记录介质，并施加到基于分散在有机粘合剂中的细分散的磁性颜料的牢固粘附的磁性涂层，该涂层含有根据本发明的具有高分子量的长链碱性聚氨基酰胺的盐有机酸酯。

8. 发明授权

US4000336A Production of magnetic recording media 失效
标题翻译：生产磁记录介质
公开(公告)号：US4000336A
公开(公告)日：1976-12-28
申请号：US521476
申请日：1974-11-06
申请人： Job Werner Hartmann , Hans Joerg Hartmann , Hermann Roller , Joachim Hack , Heinrich Hartmann
发明人： Job Werner Hartmann , Hans Joerg Hartmann , Hermann Roller , Joachim Hack , Heinrich Hartmann
IPC分类号： G11B5/702 , H01F10/02
CPC分类号： G11B5/7021 , Y10S428/90
摘要： In a process for the production of magnetic recording media by applying a layer of a dispersion of a magnetic pigment in a polyurethane-containing binder and a solvent to non-magnetic supports, small amounts of ethylenically unsaturated polymerizable carboxylic acids or their anhydrides with or without copolymerizable monomers are added and polymerized during dispersion of the magnetic pigment. Recording media produced by this process exhibit excellent output level, coefficient of friction and electrical resistance values and have particularly good operational durability.
摘要翻译：在通过将磁性颜料的分散体在含聚氨酯的粘合剂和溶剂中的一层施加到非磁性载体上来制造磁记录介质的方法中，少量的烯属不饱和可聚合羧酸或其酸酐具有或不具有可共聚单体在磁性颜料的分散过程中加入并聚合。通过该方法生产的记录介质表现出优异的输出水平，摩擦系数和电阻值，并且具有特别好的操作耐久性。

9. 发明授权

US3995089A Magnetic recording media 失效
标题翻译：磁记录媒体
公开(公告)号：US3995089A
公开(公告)日：1976-11-30
申请号：US564473
申请日：1975-04-02
申请人： Job Werner Hartmann , Hans-Joerg Hartmann , Dieter Mayer , Peter Felleisen , Ursula Klein , Herbert Motz
发明人： Job Werner Hartmann , Hans-Joerg Hartmann , Dieter Mayer , Peter Felleisen , Ursula Klein , Herbert Motz
IPC分类号： G11B5/62 , G11B5/708 , H01F10/00
CPC分类号： G11B5/708 , G11B5/62 , Y10S428/90 , Y10T428/24413 , Y10T428/265 , Y10T428/31609
摘要： A magnetic recording medium in the form of a card having a non-magnetic support with a magnetic coating on one side of the support and a backcoating on the opposite side of the support, which backcoating exhibits improved scratch resistance and adherence to the support and improved frictional characteristics and consists essentially of 20 to 50% by weight of a binder mixture containing 10 to 60% by weight of an elastomeric polyurethane and, incorporated in the binder mixture, a non-magnetic pulverulent mixture of 10 to 40% by weight of conductive carbon powder and 60 to 90% by weight of platelet-shaped and spherical particles.
摘要翻译：一种具有卡片形式的磁记录介质，其具有在载体的一侧上具有磁性涂层的非磁性载体和在支撑体的相对侧上的背涂层，所述背涂层显示出改善的耐划伤性和对载体的粘附性并且改进摩擦特性，并且基本上由20至50重量％的包含10至60重量％的弹性体聚氨酯的粘合剂混合物组成，并且在粘合剂混合物中掺入10至40重量％的导电的非磁性粉末混合物碳粉和60至90重量％的血小板形和球形颗粒。

10. 发明授权

US4357378A Magnetic recording media 失效
标题翻译：磁记录媒体
公开(公告)号：US4357378A
公开(公告)日：1982-11-02
申请号：US234708
申请日：1981-02-17
申请人： Guenter Vaeth , Rudolf Bachmann , Werner Senkpiel , Hans-Joerg Hartmann , Roland Falk , Herbert Motz
发明人： Guenter Vaeth , Rudolf Bachmann , Werner Senkpiel , Hans-Joerg Hartmann , Roland Falk , Herbert Motz
IPC分类号： C09D5/23 , G11B5/702 , B32B3/02
CPC分类号： G11B5/7022 , Y10S428/90 , Y10T428/31605 , Y10T428/31609 , Y10T428/31699 , Y10T428/31935
摘要： The invention relates to magnetic recording media comprising a non-magnetic base and, applied thereto, a firmly adhering magnetic coating based on a finely divided magnetic pigment and a special binder mixture. This binder mixture consists essentially of 20 to 90 percent by weight of an elastomeric polyurethane which is soluble in a volatile organic solvent, is practically free of isocyanate groups and has been obtained from a linear, aliphatic polyester or polyether and a diisocyanate of 6 to 24 carbon atoms, and of 10 to 80 percent by weight of a vinyl chloride copolymer which contains 50 to 90 percent by weight of vinyl chloride units and 10 to 50 percent by weight of units of one or more diesters of maleic acid with an alcohol of 1 to 3 carbon atoms, or of the reaction product of this binder mixture with a polyisocyanate of 6 to 50 carbon atoms. Magnetic coatings containing such a binder mixture are distinguished by improved surface hardness coupled with improved orientability of the magnetic particles, as a result of which such recording media are particularly suitable for modern video- and audio-recording instruments.
摘要翻译：本发明涉及包含非磁性基底的磁记录介质，并且在其上施加基于细分磁性颜料和特殊粘合剂混合物的牢固粘附的磁性涂层。该粘合剂混合物基本上由20至90重量％的可溶于挥发性有机溶剂的弹性体聚氨酯组成，实际上不含异氰酸酯基团，并且由线性脂族聚酯或聚醚和6至24的二异氰酸酯获得和10至80重量％的氯乙烯共聚物，其含有50至90重量％的氯乙烯单元和10至50重量％的一种或多种马来酸二醇与醇的共聚物1 或者该粘合剂混合物与6至50个碳原子的多异氰酸酯的反应产物。含有这种粘合剂混合物的磁性涂层的特征在于改进的表面硬度以及磁性颗粒的改进的取向性，结果这种记录介质特别适用于现代的视频和音频记录仪器。

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