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    • 2. 发明授权
    • Copolymerized polyamide resin, method for producing same, resin composition, and molded article formed from the copolymerized polyamide resin or the resin composition
    • 共聚聚酰胺树脂,其制造方法,树脂组合物和由共聚聚酰胺树脂或树脂组合物形成的成型体
    • US08895690B2
    • 2014-11-25
    • US13512214
    • 2010-11-24
    • Tomomichi KandaMinoru KikuchiKatsumi ShinoharaHideyuki Kurose
    • Tomomichi KandaMinoru KikuchiKatsumi ShinoharaHideyuki Kurose
    • C08G69/28C08G69/26
    • C08G69/28C08G69/265
    • A copolyamide resin for molding including a diamine component which includes two or more diamines and a dicarboxylic acid component. The diamine component includes 70 mol % or more of a xylylenediamine which includes 20 mol % or more of p-xylylenediamine and the dicarboxylic acid component includes 70 mol % or more of a straight-chain aliphatic dicarboxylic acid having 6 to 18 carbon atoms. The copolyamide resin contains particles having a major diameter of 50 μm or more in an amount of 1000 particles/g or less, the particles being made of a polyamide having a melting point higher than that of the copolyamide resin by 20° C. or more when measured by a differential scanning calorimetry. The copolyamide resin has very uniform and stable properties and is excellent in any of mechanical properties, heat resistance, chemical and physical properties, and molding properties. An efficient production method of the copolyamide resin, its resin composition, and its molded article are also described.
    • 一种用于模制的共聚酰胺树脂,其包含二胺组分,其包含两种或更多种二胺和二羧酸组分。 二胺成分含有70摩尔%以上的包括20摩尔%以上的对苯二甲胺的苯二甲胺,二羧酸成分含有70摩尔%以上的具有6〜18个碳原子的直链脂肪族二羧酸。 共聚酰胺树脂含有1000个/ g以下的直径为50μm以上的粒子,该粒子由熔点比共聚酰胺树脂的熔点高20℃以上的聚酰胺构成 当通过差示扫描量热法测量时。 共聚酰胺树脂具有非常均匀且稳定的性能,并且在机械性能,耐热性,化学和物理性能以及成型性方面均优异。 还描述了共聚酰胺树脂,其树脂组合物及其模塑制品的有效制备方法。
    • 8. 发明申请
    • Production method of polyamide
    • 聚酰胺的生产方法
    • US20050119446A1
    • 2005-06-02
    • US10701440
    • 2003-11-06
    • Kazumi TanakaHideyuki KuroseTakatoshi ShidaMinoru Kikuchi
    • Kazumi TanakaHideyuki KuroseTakatoshi ShidaMinoru Kikuchi
    • C08G69/04C08G69/28C08G69/08
    • C08G69/28C08G69/04
    • In the production method of polyamide of the present invention, the mole balance at a set point during melt polymerization is estimated from a pre-established equation for calculating the mole balance during melt polymerization from a melt viscosity. On the basis of the estimated mole balance, the subsequent conditions of melt polymerization of a batch and the polymerization conditions of the next and subsequent batches are determined. In addition, the mole balance, molecular weight and relative viscosity of melt-polymerized polyamide are estimated from pre-established equations each for respectively calculating the mole balance, molecular weight and relative viscosity at the end point of melt polymerization from the melt viscosity. The conditions for solid phase-polymerizing the melt-polymerized polyamide are determined on the basis of estimated values.
    • 在本发明的聚酰胺的制造方法中,从熔融粘度计算熔融聚合时的摩尔平衡的预先设定的方程,估算熔融聚合时的设定点的摩尔平衡。 基于估计的摩尔平衡,确定批次的熔融聚合的后续条件和下一批和后续批次的聚合条件。 此外,熔融聚合聚酰胺的摩尔平衡,分子量和相对粘度由预先建立的方程估算,各自分别用于分别从熔体粘度计算熔体聚合终点处的摩尔平衡,分子量和相对粘度。 基于估计值确定熔融聚合的聚酰胺的固相聚合条件。
    • 9. 发明授权
    • Optical recording medium and method of manufacturing the same
    • 光记录介质及其制造方法
    • US06889381B2
    • 2005-05-03
    • US09971180
    • 2001-10-04
    • Minoru KikuchiJun Nakano
    • Minoru KikuchiJun Nakano
    • G11B7/24G11B7/254G11B7/257G11B7/26G11B11/105
    • G11B7/26B29C65/1406B29C65/1435B29C65/1483B29C65/4815B29C65/4825B29C65/483B29C65/484B29C65/4845B29C65/521B29C66/452B29L2017/005G11B7/24G11B11/10582
    • There is provided an optical recording medium, in which a light transmitting layer is formed on a disc substrate, having less deflection and being excellent in recording/reproducing properties. In an optical disc, an information signal area on which an information signal can be recorded and/or reproduced is formed on a major surface of a disc substrate thereof; a light transmitting layer which can transmit a laser beam used in a process for recording and/or reproducing the information signal is formed on a side on which the information signal area is present; and a clamp reference plane is arranged on a major surface of the light transmitting layer in a clamp region. If the optical disc is clamped by a chucking unit of a drive, it is clamped by making the clamp reference plane on the major surface of the light transmitting layer contact with a mounting surface of a table for mounting the disc, and making a magnetic metal plate contact with the major surface of the disc substrate, and then sandwiching the optical disc between.
    • 提供了一种光记录介质,其中光盘传输层形成在盘基片上,具有较小的偏转和良好的记录/再现性能。 在光盘中,其信息信号可以被记录和/或再现的信息信号区域形成在其盘片基板的主表面上; 在存在信息信号区域的一侧形成能够发送用于记录和/或再现信息信号的处理的激光束的光透射层; 并且夹具参考平面布置在夹持区域中的透光层的主表面上。 如果光盘由驱动器的夹紧单元夹紧,则通过使光透射层的主表面上的夹具参考平面与用于安装盘的台的安装表面接触而被夹紧,并且制造磁性金属 与盘基片的主表面接触,然后将光盘夹在其间。
    • 10. 发明授权
    • Disc-shaped recording medium with a protective film
    • 具有保护膜的盘状记录介质
    • US06312781B1
    • 2001-11-06
    • US09404582
    • 1999-09-24
    • Minoru Kikuchi
    • Minoru Kikuchi
    • G11B566
    • G11B23/0021B05C11/08G11B7/26G11B11/10582Y10S428/90Y10T428/265
    • The present invention provides an apparatus and method for forming a protective film on a disc-shaped recording medium including providing a turnable having a center aperture, setting the disc-shaped recording medium having a center opening on the turnable with the center opening being aligned with the center aperture, covering at least the center opening of the disc-shaped recording medium with a rotating disc having a portion larger in diameter than the center opening of the disc-shaped recording medium, and supplying a protective film material to the center of the rotating disc and simultaneously rotating the turnable, the disc-shaped recording medium, and the disc to cause an outward radial flow of the protective film material off the disc and onto the disc-shaped recording medium so that the protective film is obtained and has thickness with a small variation.
    • 本发明提供了一种用于在盘形记录介质上形成保护膜的装置和方法,包括提供具有中心孔的可转动件,将具有中心开口的盘形记录介质设置在可转动的中心开口处,其中心开口与 所述中心孔径至少覆盖所述盘形记录介质的中心开口,其旋转盘具有直径大于所述盘形记录介质的中心开口部分的直径,并且将保护膜材料供应到所述盘形记录介质的中心 旋转盘并且同时旋转可转动盘形记录介质和盘,以使保护膜材料向外径向流出盘并且到盘形记录介质上,从而获得保护膜并具有厚度 有一个小的变化。