Method of making a magnetic head with ferrite between nonmagnetic portions and a nonmagnetic gap
    1.
    发明授权
    Method of making a magnetic head with ferrite between nonmagnetic portions and a nonmagnetic gap 失效
    在非磁性部分和非磁性间隙之间制造具有铁氧体的磁头的方法

    公开(公告)号:US07275307B2

    公开(公告)日:2007-10-02

    申请号:US10775930

    申请日:2004-02-10

    IPC分类号: G11B5/147

    摘要: A method for making a magnetic head formed with a pair of magnetic core halves fitted to abut on each other having a nonmagnetic gap therebetween and having a slide contact plane for slide contact with a magnetic recording medium on which an end face of the nonmagnetic gap and the magnetic core halves. In the method, a nonmagnetic portion formed by filling a glass material is provided at an end portion of the slide contact plane other than the end face of the magnetic core halves on the slide contact plane.

    摘要翻译: 一种用于制造磁头的方法,所述磁头形成有一对磁芯半部,所述磁芯半体彼此邻接并且彼此之间具有非磁性间隙,并且具有用于与非磁性间隙的端面上的磁记录介质滑动接触的滑动接触平面;以及 磁芯一半。 在该方法中,通过填充玻璃材料形成的非磁性部分设置在滑动接触面的除滑动接触面上的磁芯半部的端面以外的端部。

    Magnetic head with ferrite between nonmagnetic portions and a nonmagnetic gap
    2.
    发明授权
    Magnetic head with ferrite between nonmagnetic portions and a nonmagnetic gap 失效
    磁头与非磁性部分之间的铁素体和非磁性间隙

    公开(公告)号:US06801391B2

    公开(公告)日:2004-10-05

    申请号:US10119472

    申请日:2002-04-10

    IPC分类号: G11B5127

    摘要: There is provided a magnetic head formed with a pair of magnetic core halves fitted to abut on each other having a nonmagnetic gap therebetween and having a slide contact plane for slide contact with a magnetic recording medium on which an end face of the nonmagnetic gap and the magnetic core halves. In the magnetic head, a nonmagnetic portion formed by filling a glass material is provided at an end portion of the slide contact plane outer than the end face of the magnetic core halves on the slide contact plane. The inventive magnetic head realizes less volume of magnetic body while solving problems in mechanical strength of the magnetic head or in compatibility to a conventional head. Accordingly, a magnetic head with excellent head performance without decreasing productivity can be obtained.

    摘要翻译: 提供一种磁头,形成有一对磁芯半体,它们彼此抵接,彼此之间具有非磁性间隙,并且具有滑动接触平面,用于与非磁性间隙的端面上的磁记录介质滑动接触, 磁芯半部。 在磁头中,通过填充玻璃材料形成的非磁性部分设置在滑动接触平面外侧的滑动接触平面上的磁芯半部的端面外侧。 本发明的磁头在解决磁头的机械强度问题或兼容于常规磁头的同时实现较少体积的磁体。 因此,可以获得具有优异的头部性能而不降低生产率的磁头。

    Production Process of Poly(Arylene Sulfide) Whose Content of Terminal Halogen Group Has Been Reduced
    3.
    发明申请
    Production Process of Poly(Arylene Sulfide) Whose Content of Terminal Halogen Group Has Been Reduced 有权
    末端卤素组的含量降低的聚(亚硫酰基)生产工艺

    公开(公告)号:US20110124825A1

    公开(公告)日:2011-05-26

    申请号:US13055430

    申请日:2009-06-10

    IPC分类号: C08G75/16

    摘要: The invention provides a production process of a poly(arylene sulfide) which contains a step of polymerizing a sulfur source and a dihalo-aromatic compound in an organic amide solvent, said polymerization step containing a phase-separation polymerization step that the polymerization reaction is continued in the presence of a phase separation agent in a phase-separated state, wherein a monohalo-organic compound is added in a proportion of 0.005 to 20 mol per 100 mol of the charged sulfur source into the polymerization reaction system at the time a conversion of the dihalo-aromatic compound has reached 80 to 99% after initiation of the polymerization reaction and before the liquid phase becomes the phase-separated state to be reacted with a formed polymer, and the liquid phase within the polymerization reaction system is then converted to the phase-separated state to continue the polymerization reaction.

    摘要翻译: 本发明提供了一种聚(亚芳基硫醚)的制造方法,该方法包括在有机酰胺溶剂中使硫源和二卤代芳族化合物聚合的步骤,所述聚合步骤包含聚合反应持续的相分离聚合步骤 在相分离状态下存在相分离剂的情况下,其中将单卤代有机化合物以每100摩尔加入的硫源0.005至20摩尔的比例加入到聚合反应体系中, 二卤代芳族化合物在聚合反应开始后达到80-99%,并且在液相变成相分离状态以与形成的聚合物反应之前,然后将聚合反应体系内的液相转化为 相分离状态继续进行聚合反应。

    Poly(arylene sulfide) and production process thereof
    4.
    发明授权
    Poly(arylene sulfide) and production process thereof 有权
    聚(亚芳基硫醚)及其制备方法

    公开(公告)号:US08530605B2

    公开(公告)日:2013-09-10

    申请号:US13320484

    申请日:2010-05-11

    IPC分类号: C08G64/00 C08G63/02

    摘要: The invention provides a production process of a poly(arylene sulfide), comprising a polymerization step of subjecting at least one sulfur source selected from the group consisting of alkali metal sulfides and alkali metal hydrosulfides and a dihalo-aromatic compound to a polymerization reaction in an organic amide solvent; a reaction step of adding a hydroxyl group-containing organic compound containing no bonded halogen atom in a proportion of 0.001 to 20 mol per 100 mol of the charged sulfur source into the polymerization reaction system containing the organic amide solvent and a formed polymer after the polymerization step to cause the formed polymer to react with the hydroxyl group-containing organic compound; and a collecting step of collecting a polymer from the polymerization reaction system after the reaction step, and the poly(arylene sulfide).

    摘要翻译: 本发明提供了一种聚(亚芳基硫醚)的制造方法,其包括聚合步骤,其中将至少一种选自碱金属硫化物和碱金属氢硫化物的硫源和二卤代芳族化合物进行聚合反应 有机酰胺溶剂; 在含有有机酰胺溶剂的聚合反应体系中,以每100摩尔加入的硫源的比例为0.001〜20摩尔含有不含键合卤素原子的含羟基的有机化合物和聚合后的反应工序 使形成的聚合物与含羟基的有机化合物反应的步骤; 以及在反应步骤之后从聚合反应体系中收集聚合物和聚(亚芳基硫醚)的收集步骤。

    Poly(Arylene Sulfide) and Production Process Thereof
    6.
    发明申请
    Poly(Arylene Sulfide) and Production Process Thereof 有权
    聚(亚硫酰亚胺)及其制备方法

    公开(公告)号:US20120065361A1

    公开(公告)日:2012-03-15

    申请号:US13320484

    申请日:2010-05-11

    IPC分类号: C08G73/06

    摘要: The invention provides a production process of a poly(arylene sulfide), comprising a polymerization step of subjecting at least one sulfur source selected from the group consisting of alkali metal sulfides and alkali metal hydrosulfides and a dihalo-aromatic compound to a polymerization reaction in an organic amide solvent; a reaction step of adding a hydroxyl group-containing organic compound containing no bonded halogen atom in a proportion of 0.001 to 20 mol per 100 mol of the charged sulfur source into the polymerization reaction system containing the organic amide solvent and a formed polymer after the polymerization step to cause the formed polymer to react with the hydroxyl group-containing organic compound; and a collecting step of collecting a polymer from the polymerization reaction system after the reaction step, and the poly(arylene sulfide).

    摘要翻译: 本发明提供了一种聚(亚芳基硫醚)的制造方法,其包括聚合步骤,其中将至少一种选自碱金属硫化物和碱金属氢硫化物的硫源和二卤代芳族化合物进行聚合反应 有机酰胺溶剂; 在含有有机酰胺溶剂的聚合反应体系中,以每100摩尔加入的硫源的比例为0.001〜20摩尔含有不含键合卤素原子的含羟基的有机化合物和聚合后的反应工序 使形成的聚合物与含羟基的有机化合物反应的步骤; 以及在反应步骤之后从聚合反应体系中收集聚合物和聚(亚芳基硫醚)的收集步骤。

    Method for removing a liquid crystal alignment film
    7.
    发明授权
    Method for removing a liquid crystal alignment film 失效
    去除液晶取向膜的方法

    公开(公告)号:US5496584A

    公开(公告)日:1996-03-05

    申请号:US340447

    申请日:1994-11-14

    摘要: A method for removing a liquid crystal alignment film from a liquid crystal cell substrate having the alignment film formed by coating a solution containing, as the main component, a polyamic acid having, as the main repeating units, a chemical structure of the following formula (1): ##STR1## wherein each of R.sub.1 and R.sub.2 is a hydrogen atom or a methyl group, R.sub.3 is a bivalent organic group constituting a diamine, and n is from 10 to 1,000, followed by baking, which method comprises irradiating said liquid crystal cell substrate with ultraviolet rays having wavelengths within a range of from 230 to 300 nm and then treating it with an aprotic highly polar organic solvent or an alkaline solvent.

    摘要翻译: 一种从具有取向膜的液晶单元基板中除去液晶取向膜的方法,该液晶单元基板通过以下述方式涂覆形成的溶液而形成:将含有作为主要成分的聚酰胺酸作为主要重复单元, 1):其中R 1和R 2各自为氢原子或甲基,R 3为构成二胺的二价有机基团,n为10〜1000,进行烧成,该方法包括照射 所述液晶单元基板的紫外线的波长范围为230〜300nm,然后用非质子极性有机溶剂或碱性溶剂处理。

    Process for producing amineoxide
    9.
    发明授权
    Process for producing amineoxide 失效
    生产氧化胺的方法

    公开(公告)号:US4247480A

    公开(公告)日:1981-01-27

    申请号:US65338

    申请日:1979-08-09

    CPC分类号: C07C291/04

    摘要: An amine oxide is produced by oxidizing a tertiary amine having the formula ##STR1## wherein R.sub.1 and R.sub.2 respectively represent methyl or ethyl group; and R.sub.3 represent a C.sub.8 -C.sub.14 alkyl or alkenyl group in the presence of carbon dioxide and in the presence or absence of an improver selected from the group consisting of ethylenediaminetetraacetic acid, its salts, stanates, polyphosphates, salts of hydroxycaboxylic acid and salts of polycarboxylic acid.

    摘要翻译: 通过氧化具有式“IMAGE”的叔胺制备氧化胺,其中R1和R2分别表示甲基或乙基; 并且R 3在二氧化碳的存在下和在存在或不存在选自乙二胺四乙酸,其盐,甾烷酸酯,多磷酸盐,羟基羧酸的盐和多元羧酸盐的存在或不存在的情况下代表C 8 -C 14烷基或烯基 酸。

    Production process of poly(arylene sulfide) whose content of terminal halogen group has been reduced
    10.
    发明授权
    Production process of poly(arylene sulfide) whose content of terminal halogen group has been reduced 有权
    末端卤素基团含量降低的聚(亚芳基硫醚)的制备方法

    公开(公告)号:US08680230B2

    公开(公告)日:2014-03-25

    申请号:US13055430

    申请日:2009-06-10

    IPC分类号: C08G75/14

    摘要: The invention provides a production process of a poly(arylene sulfide) which contains a step of polymerizing a sulfur source and a dihalo-aromatic compound in an organic amide solvent, said polymerization step containing a phase-separation polymerization step that the polymerization reaction is continued in the presence of a phase separation agent in a phase-separated state, wherein a monohalo-organic compound is added in a proportion of 0.005 to 20 mol per 100 mol of the charged sulfur source into the polymerization reaction system at the time a conversion of the dihalo-aromatic compound has reached 80 to 99% after initiation of the polymerization reaction and before the liquid phase becomes the phase-separated state to be reacted with a formed polymer, and the liquid phase within the polymerization reaction system is then converted to the phase-separated state to continue the polymerization reaction.

    摘要翻译: 本发明提供了一种聚(亚芳基硫醚)的制造方法,该方法包括在有机酰胺溶剂中使硫源和二卤代芳族化合物聚合的步骤,所述聚合步骤包含聚合反应持续的相分离聚合步骤 在相分离状态下存在相分离剂的情况下,其中将单卤代有机化合物以每100摩尔加入的硫源0.005至20摩尔的比例加入到聚合反应体系中, 二卤代芳族化合物在聚合反应开始后达到80-99%,并且在液相变成相分离状态以与形成的聚合物反应之前,然后将聚合反应体系内的液相转化为 相分离状态继续进行聚合反应。