公开(公告)号：US20110064970A1

公开(公告)日：2011-03-17

申请号：US12559450

申请日：2009-09-14

申请人： Shaun H. Chen ,  Yasuo Sakane ,  Henry S. Nishihira ,  Chi Kong Kwok ,  The V. Tran ,  Bing-Shiuan Chang

发明人： Shaun H. Chen ,  Yasuo Sakane ,  Henry S. Nishihira ,  Chi Kong Kwok ,  The V. Tran ,  Bing-Shiuan Chang

IPC分类号： G11B5/725 ,  C10M137/02 ,  B05D3/00

CPC分类号： G11B5/725 ,  C10M157/10 ,  C10M177/00 ,  C10M2213/0606 ,  C10M2225/0405 ,  C10N2240/204 ,  C10N2250/14 ,  C10N2280/00

摘要： A composite lubricant for recording disk media, a recording disk media including a layer of the composite lubricant, and method of manufacturing the same are described. The composite lubricant may include a non-phosphazene component and a phosphazene component where the non-phosphazene component is a difunctional perfluoropolyether compound terminated with first and second polar end groups, the first polar end group comprising a first number of hydroxyls and the second polar end includes a second number of hydroxyls, greater than the first number of hydroxyls. The phosphazene component may be a difunctional perfluoropolyether compound terminated with a phosphazene functional group and with a third polar end group, the third polar end group comprising a third number of hydroxyls equal to the second number of hydroxyls.

摘要翻译： 描述了用于记录盘介质的复合润滑剂，包括复合润滑剂层的记录盘介质及其制造方法。 复合润滑剂可以包括非磷腈成分和磷腈成分，其中非磷腈成分是以第一和第二极性端基封端的双官能全氟聚醚化合物，第一极端基包含第一数目的羟基，第二极端 包括第二数量的羟基，大于第一数目的羟基。 磷腈组分可以是用磷腈官能团封端的二官能全氟聚醚化合物，并且具有第三极性端基，第三极性端基包含等于第二数量羟基的第三数量的羟基。

公开(公告)号：US20110045319A1

公开(公告)日：2011-02-24

申请号：US12863366

申请日：2009-01-20

申请人： Satoshi Hayakawa ,  Daisuke Yano ,  Yoshikazu Yamazaki

发明人： Satoshi Hayakawa ,  Daisuke Yano ,  Yoshikazu Yamazaki

IPC分类号： G11B5/72 ,  B29C65/02 ,  G11B5/70

CPC分类号： G11B5/8408 ,  G11B5/725 ,  Y10T428/28 ,  Y10T428/2991

摘要： Subject: A process for producing a magnetic recording medium, having a magnetic recording layer and a protective layer on a substrate which is a non-magnetic support, wherein the medium is able to greatly inhibit migration of a lubricant from the protective layer to the surface of the metal pressing plate having a mirrored finish in a hot pressing step during production of the magnetic recording medium, while maintaining satisfactory scratch resistance, suitable adhesion with the magnetic recording layer and the protective layer, and excellent read and write properties of the magnetic recording medium.Means to Achieve the Subject: A process for producing a magnetic recording medium, comprising: forming a laminate on a substrate which is a non-magnetic support, wherein the laminate has an adhesive layer, a magnetic recording layer and a protective layer in this order from the side near the substrate, and embedding the laminate into the substrate by carrying out hot pressing on the protective layer to provide a level smooth plane formed by the surface of the substrate and the uppermost surface of the laminate; wherein the protective layer contains a binder resin and particles composed of a mixture including polyethylene and polytetrafluoroethylene.

摘要翻译： 题目：一种制造磁记录介质的方法，在作为非磁性载体的基底上具有磁记录层和保护层，其中介质能够极大地抑制润滑剂从保护层向表面的迁移 的金属压板在制造磁记录介质时在热压步骤中具有镜面光洁度，同时保持令人满意的耐擦伤性，与磁记录层和保护层的适当粘合性以及良好的磁记录读写性能 中。 实现主题的手段：一种制造磁记录介质的方法，包括：在非磁性载体的基板上形成层压体，其中层压体按顺序具有粘合层，磁记录层和保护层 从衬底附近一侧，通过在保护层上进行热压，将层叠体嵌入基板，以提供由基板的表面和层叠体的最上表面形成的平坦的平面; 其中保护层含有粘合剂树脂和由包括聚乙烯和聚四氟乙烯的混合物组成的颗粒。

公开(公告)号：US20100246064A1

公开(公告)日：2010-09-30

申请号：US12732945

申请日：2010-03-26

申请人： Kae ITOH ,  Katsushi HAMAKUBO ,  Koichi SHIMOKAWA

发明人： Kae ITOH ,  Katsushi HAMAKUBO ,  Koichi SHIMOKAWA

IPC分类号： G11B5/82 ,  C08G65/40

CPC分类号： G11B5/725 ,  G11B5/8408

摘要： In a magnetic disk has at least a magnetic layer, a carbon-based protective layer, and a lubricating layer formed in this order over a substrate, the lubricating layer contains a lubricant compound including a compound which has a perfluoropolyether main chain in a structure thereof, an aromatic group located at a position except each end of a molecule thereof, and a polar group at each end of the molecule.

摘要翻译： 在磁盘中至少具有在基板上依次形成的磁性层，碳类保护层和润滑层，润滑层含有在其结构中具有全氟聚醚主链的化合物的润滑剂化合物 位于除了其分子的每个末端以外的位置的芳族基团和分子的每个末端的极性基团。

公开(公告)号：US07772172B2

公开(公告)日：2010-08-10

申请号：US12504825

申请日：2009-07-17

申请人： Jianwei Liu ,  Michael Joseph Stirniman ,  Huan Tang ,  Jing Gui

发明人： Jianwei Liu ,  Michael Joseph Stirniman ,  Huan Tang ,  Jing Gui

IPC分类号： C07F9/6571 ,  C08F8/34 ,  F04B53/00

CPC分类号： C10M107/48 ,  C10M153/00 ,  C10M153/04 ,  C10M2225/00 ,  C10M2225/003 ,  C10N2240/204 ,  G11B5/725 ,  Y10T428/30

摘要： A lubricant for improving the durability and reliability of recording media used in hard drives is disclosed. The lubricant comprises a perfluoropolyether main chain with a first end attached to a hexa(trifluoromethylphenoxy)cyclotriphosphazene, a second end attached to a bonding enhancer for enhancing bonding between the lubricant and a carbon-containing layer. The bonding enhancer of the lubricant can contain multiple hydroxyl, amide groups, 2,3-dihydroxy-1-propoxyl, acetamide, methacrylate, methyl methacrylate and glycidyl ether. Some bonding enhancers such as methacrylate, methyl methacrylate or glycidyl ether, can be further activated with ultraviolet light.

摘要翻译： 公开了一种用于提高用于硬盘驱动器的记录介质的耐久性和可靠性的润滑剂。 润滑剂包括全氟聚醚主链，其第一端连接到六（三氟甲基苯氧基）环三磷腈，第二端连接到粘合增强剂，用于增强润滑剂和含碳层之间的粘合。 润滑剂的粘合增强剂可以含有多个羟基，酰胺基，2,3-二羟基-1-丙氧基，乙酰胺，甲基丙烯酸酯，甲基丙烯酸甲酯和缩水甘油醚。 一些结合增强剂如甲基丙烯酸酯，甲基丙烯酸甲酯或缩水甘油醚可以用紫外线进一步活化。

公开(公告)号：US20100136371A1

公开(公告)日：2010-06-03

申请号：US12451482

申请日：2008-05-09

申请人： Tsuyoshi Shimizu ,  Kazunori Shirai ,  Nagayoshi Kobayashi

发明人： Tsuyoshi Shimizu ,  Kazunori Shirai ,  Nagayoshi Kobayashi

IPC分类号： G11B5/725 ,  C07F9/547

CPC分类号： G11B5/725 ,  C08G65/007 ,  C08G65/3356 ,  C08G2650/48 ,  C10M107/54 ,  C10M2209/04 ,  C10N2240/204 ,  C10M2213/043 ,  C10M2225/0405

摘要： A compound of the formula (I), and lubricant, and magnetic disk each using the same A-(CH2—Rf—CH2O—B—O)n—CH2—Rf—CH2-A  (I) wherein n is an integer of 1 to 4, A is a group of the formula (a) below, and B is a group of the formula (b) below, p being 1 or 2, R being C1-4 fluoroalkyl, Rf is —CF2O(CF2CF2O)x(CF2O)yCF2— or —CF2CF2O(CF2CF2CF2O)nCF2CF2—, x, y and z being each a real number of 0 to 50.

摘要翻译： 各式（I）化合物和润滑剂以及各自使用相同的A-（CH2-Rf-CH2O-B-O）n-CH2-Rf-CH2-A（Ⅰ）的磁盘，其中n为 1〜4中，A为下述通式（a）的基团，B为下述通式（b）的基团，p为1或2，R为C1-4氟烷基，Rf为-CF2O（CF2CF2O）x （CF 2 O）y CF 2 - 或-CF 2 CF 2 O（CF 2 CF 2 CF 2 O）n CF 2 CF 2 - ，x，y和z各自为0至50的实数。

公开(公告)号：US20100118436A1

公开(公告)日：2010-05-13

申请号：US12270121

申请日：2008-11-13

申请人： Xiaoping Yan ,  Lei Li ,  Paul Max Jones ,  Yiao-Tee Hsia

发明人： Xiaoping Yan ,  Lei Li ,  Paul Max Jones ,  Yiao-Tee Hsia

IPC分类号： G11B33/14 ,  C23C16/00

CPC分类号： C23C14/12 ,  G11B5/725

摘要： A data storage device comprising a storage medium having a recordable surface, a transducing head having a bearing surface positioned adjacent to the recordable surface of the storage medium, and at least one compound disposed between the recordable surface and the bearing surface, the at least one compound comprising at least one functional group that imparts corrosion resistance and at least one functional group that imparts lubricating properties.

摘要翻译： 一种数据存储装置，包括具有可记录表面的存储介质，具有邻近存储介质的可记录表面定位的支承表面的换能头以及设置在可记录表面和支承表面之间的至少一个化合物，所述至少一个 包含赋予耐腐蚀性的至少一种官能团和赋予润滑性的至少一种官能团的化合物。

公开(公告)号：US20090297887A1

公开(公告)日：2009-12-03

申请号：US12504825

申请日：2009-07-17

申请人： Jianwei Liu ,  Michael Joseph Stirniman ,  Huan Tang ,  Jing Gui

发明人： Jianwei Liu ,  Michael Joseph Stirniman ,  Huan Tang ,  Jing Gui

IPC分类号： G11B5/71 ,  G11B5/702

CPC分类号： C10M107/48 ,  C10M153/00 ,  C10M153/04 ,  C10M2225/00 ,  C10M2225/003 ,  C10N2240/204 ,  G11B5/725 ,  Y10T428/30

摘要： A lubricant for improving the durability and reliability of recording media used in hard drives is disclosed. The lubricant comprises a perfluoropolyether main chain with a first end attached to a hexa(trifluoromethylphenoxy)cyclotriphosphazene, a second end attached to a bonding enhancer for enhancing bonding between the lubricant and a carbon-containing layer. The bonding enhancer of the lubricant can contain multiple hydroxyl, amide groups, 2,3-dihydroxy-1-propoxyl, acetamide, methacrylate, methyl methacrylate and glycidyl ether. Some bonding enhancers such as methacrylate, methyl methacrylate or glycidyl ether, can be further activated with ultraviolet light.

摘要翻译： 公开了一种用于提高用于硬盘驱动器的记录介质的耐久性和可靠性的润滑剂。 润滑剂包括全氟聚醚主链，其第一端连接到六（三氟甲基苯氧基）环三磷腈，第二端连接到粘合增强剂，用于增强润滑剂和含碳层之间的粘合。 润滑剂的粘合增强剂可以含有多个羟基，酰胺基，2,3-二羟基-1-丙氧基，乙酰胺，甲基丙烯酸酯，甲基丙烯酸甲酯和缩水甘油醚。 一些结合增强剂如甲基丙烯酸酯，甲基丙烯酸甲酯或缩水甘油醚可以用紫外线进一步活化。

公开(公告)号：US20090155517A1

公开(公告)日：2009-06-18

申请号：US12088831

申请日：2006-09-28

申请人： Kota Suzuki ,  Koichi Shimokawa

发明人： Kota Suzuki ,  Koichi Shimokawa

IPC分类号： G11B7/254

CPC分类号： G11B5/8408 ,  C10M107/38 ,  C10N2230/00 ,  C10N2230/08 ,  C10N2240/204 ,  G11B5/725 ,  G11B5/82

摘要： In order to obtain a magnetic recording disk that exhibits high reliability even if the flying height of a magnetic head becomes very narrow, a lubricant is specified in terms of both molecular structure and quantitative data. That is, a lubricating layer 14 of the magnetic recording disk 1 is formed by a lubricant which contains perfluoropolyether compounds represented by the following chemical formula (Chemical Formula 1) and which has a first component content of 71.7%, a second component content of 15.7%, a third component content of 11.7%, a fourth component content of 0.3%, and a fifth component content of 0.6%: X—OCH2CF2—(CF2O)m(C2F4O)n—CF2OCH2O—X  (Chemical Formula 1) m, n=9 to 11 first component: X=X1=CH2CH(OH)CH2OH second component: X=X2=CH2CH(OH)CH2OCH2CH(OH)CH2OH third component: X=X3=H fourth component: X=X4=CF3 fifth component: X=X5=CF2Cl

摘要翻译： 为了获得即使磁头的飞行高度变得非常窄的情况下仍具有高可靠性的磁记录盘，就分子结构和定量数据而言，都规定润滑剂。 也就是说，磁记录盘1的润滑层14由含有由以下化学式（化学式1）表示的全氟聚醚化合物的润滑剂形成，其第一成分含量为71.7％，第二成分含量为15.7 ％，第三成分含量为11.7％，第四成分含量为0.3％，第五成分含量为0.6％：<？in-line-formula description =“In-line formula”end =“lead”？> X -OCH 2 CF 2 - （CF 2 O）m（C 2 F 4 O）n -CF 2 OCH 2 O-X（化学式1）<？在线公式描述=“在线公式”末端=“尾”→m，n = 9〜11 组分：X = X1 = CH2CH（OH）CH2OH第二组分：X = X2 = CH2CH（OH）CH2OCH2CH（OH）CH2OH第三组分：X = X3 = H第四组分：X = X4 = CF3第五组分：X = X5 = CF2Cl

公开(公告)号：US20090136784A1

公开(公告)日：2009-05-28

申请号：US12088803

申请日：2006-09-28

申请人： Kota Suzuki ,  Koichi Shimokawa

发明人： Kota Suzuki ,  Koichi Shimokawa

IPC分类号： G11B5/71

CPC分类号： G11B5/725 ,  C10M105/54 ,  C10M107/38 ,  C10M2211/0425 ,  C10M2213/043 ,  C10M2213/0606 ,  C10N2220/02 ,  C10N2220/032 ,  C10N2230/08 ,  C10N2230/74 ,  C10N2240/08 ,  C10N2240/204 ,  C10N2250/121 ,  C10N2270/00 ,  G11B5/8408

摘要： In a magnetic recording disk 1 including a magnetic layer 12, a protective layer 13, and a lubricating layer 14, the lubricating layer 14 is made from a lubricant prepared from a composition. The weight change of the lubricant ranges from −20% to −50% at 300° C. in the case where the lubricant is subjected to thermogravimetric analysis in such a manner that the lubricant is heated from 40° C. to 500° C. at a heating rate of 10° C./min. The lubricant has a maximum peak at about 300° C. in the case where the lubricant is subjected to differential thermal analysis in the same manner as described above. The lubricant can be quantitatively measured for heat resistance. Therefore, a magnetic recording disk exhibiting stable performance at high temperatures and a method for manufacturing such a magnetic recording disk can be obtained.

摘要翻译： 在包括磁性层12，保护层13和润滑层14的磁记录盘1中，润滑层14由由组合物制备的润滑剂制成。 在将润滑剂从40℃加热至500℃的情况下，润滑剂进行热重分析的情况下，在300℃下，润滑剂的重量变化范围为-20％-50％。 加热速率为10℃/分钟。 在润滑剂以与上述相同的方式进行差热分析的情况下，润滑剂在约300℃具有最大峰值。 可以定量测量润滑剂的耐热性。 因此，可以获得在高温下表现出稳定的性能的磁记录盘以及制造这种磁记录盘的方法。

公开(公告)号：US07534750B2

公开(公告)日：2009-05-19

申请号：US11063737

申请日：2005-02-24

申请人： Hiroshi Chiba ,  Yukiko Oshikubo ,  Keiji Watanabe ,  Eishin Yamakawa ,  Takeshi Toukairin

发明人： Hiroshi Chiba ,  Yukiko Oshikubo ,  Keiji Watanabe ,  Eishin Yamakawa ,  Takeshi Toukairin

IPC分类号： C10M169/04

CPC分类号： C08G65/007 ,  C08G65/2639 ,  C08G65/3318 ,  C09J171/02 ,  G11B5/725

摘要： There are provided a composition that exhibits sufficient flowability and also displays high substrate adhesion, and a magnetic recording medium, a head slider and a magnetic recording device that use this composition as a lubricant and are thus not prone to faults. The composition comprises a fluorine-containing polyether represented by formula (1), (in formula (1), p and q represent, independently of the symbols in other formulae, any chosen integers). The composition can be produced by reacting a polymer represented by formula (2) with glycidol, HOCH2CF2O(CF2CF2O)p(CF2O)qCF2CH2OH  (2) (in formula (2), p and q represent, independently of the symbols in other formulae, any chosen integers).

摘要翻译： 提供了表现出足够的流动性并且还显示出高的基材粘附性的组合物，以及使用该组合物作为润滑剂并因此不易发生故障的磁记录介质，磁头滑块和磁记录装置。 该组合物包含由式（1）表示的含氟聚醚，（式（1）中，p和q独立于其它式中的符号表示任意选定的整数）。 该组合物可以通过使由式（2）表示的聚合物与缩水甘油反应来制备，<？in-line-formula description =“In-line Formulas”end =“lead”？> HOCH2CF2O（CF2CF2O）p（CF2O）qCF2CH2OH （在公式（2）中，p和q独立于其他公式中的符号，表示任何所选择的整数）。