Process for continuously producing polybutylene terephthalate
    14.
    发明授权
    Process for continuously producing polybutylene terephthalate 有权
    连续生产聚对苯二甲酸丁二醇酯的方法

    公开(公告)号:US07057007B2

    公开(公告)日:2006-06-06

    申请号:US10092565

    申请日:2002-03-08

    IPC分类号: C08G63/18

    摘要: Polybutylene terephthalate having good heat stability and excellent hydrolysis resistance is continuously produced in a series of a first reactor for reacting an aromatic dicarboxylic acid comprising terephthalic acid as a main ingredient or a derivative thereof with a glycol comprising 1,4-butanediol as a main ingredient, a second reactor for polycondensating the oligomer from the first reactor, and a third reactor for further polycondensating the low polymerization product from the second reactor, or followed by a fourth reactor for further polycondensing the polyester from the third reactor. Another third reactor or a plurality of third reactors can be provided in parallel to the third reactor.

    摘要翻译: 将包含对苯二甲酸或其衍生物的芳族二羧酸与以1,4-丁二醇为主要成分的二醇反应的第一反应器中连续生产具有良好热稳定性和优异耐水解性的聚对苯二甲酸丁二醇酯 ,用于使来自第一反应器的低聚物缩聚的第二反应器和用于使来自第二反应器的低聚合产物进一步缩聚的第三反应器,或随后是第四反应器,用于进一步使来自第三反应器的聚酯缩聚。 可以与第三反应器平行地提供另外的第三反应器或多个第三反应器。

    Production process and production apparatus for polybutylene terephthalate
    16.
    发明授权
    Production process and production apparatus for polybutylene terephthalate 有权
    聚对苯二甲酸丁二醇酯的生产工艺和生产设备

    公开(公告)号:US06359106B1

    公开(公告)日:2002-03-19

    申请号:US09642587

    申请日:2000-08-22

    IPC分类号: C08G6300

    摘要: Polybutylene terephthalate having good heat stability and excellent hydrolysis resistance is continuously produced in a series of a first reactor for reacting an aromatic dicarboxylic acid comprising terephthalic acid as a main ingredient or a derivative thereof with a glycol comprising 1,4-butanediol as a main ingredient, thereby producing an oligomer with an average degree of polymerization of 2.2 to 5, a second reactor for polycondensating the oligomer from the first reactor, thereby preparing a low polymerization product with an average degree of polymerization of 25 to 40, and a third reactor for further polycondensating the low polymerization product from the second reactor, thereby producing a high molecular weight polyester with an average degree of polymerization of 70 to 130, or followed by a fourth reactor for further polycondensing the polyester from the third reactor to an average degree of polymerization of 150 to 200, thereby producing a high molecular weight polyester. Another third reactor or a plurality of third reactors can be provided in parallel to the third reactor, thereby producing different kinds of polybutylene phthalate with different degrees of polymerization from that produced in the main line of the third and fourth reactors or adjusting operating conditions of each of a plurality of the third reactors to increase kinds, precise quality.

    摘要翻译: 将包含对苯二甲酸或其衍生物的芳族二羧酸与以1,4-丁二醇为主要成分的二醇反应的第一反应器中连续生产具有良好热稳定性和优异耐水解性的聚对苯二甲酸丁二醇酯 ,由此制备平均聚合度为2.2〜5的低聚物,第二反应器,其使来自第一反应器的低聚物缩聚,由此制备平均聚合度低的聚合产物为25〜40,第三反应器为 使来自第二反应器的低聚合产物进一步缩聚,从而制备平均聚合度为70至130的高分子量聚酯,或随后是用于将聚酯从第三反应器进一步缩聚至平均聚合度的第四反应器 为150〜200,由此制造高分子量聚酯。 可以与第三反应器平行地提供另外的第三反应器或多个第三反应器,从而产生与在第三和第四反应器的主管线中产生的不同聚合度的不同种类的聚对苯二甲酸丁二酯,或者调节每个反应器的操作条件 的多个第三反应堆,以增加种类,精确的质量。

    Method and apparatus for continuous polycondensation
    17.
    发明授权
    Method and apparatus for continuous polycondensation 有权
    连续缩聚方法和装置

    公开(公告)号:US6096838A

    公开(公告)日:2000-08-01

    申请号:US242903

    申请日:1999-02-25

    摘要: An apparatus for continuously producing polyester comprises three single reactors, i.e. a single esterification reactor (first reactor), a single initial polymerization reactor (second reactor) and a single final polymerization reactor (third reactor or final polymerizer), where at least one of the first reactor and the second reactor is free from an external stirring power source, or the third reactor is a horizontal, one-shaft-type, low speed rotation type reactor. Necessary number of reactors for the esterification and polycondensation reactions can be a minimum and necessary stirring power consumption for the reaction can be a miminum, and thus polyester polymers of good quality can be efficiently produced at a minimum energy cost in a necessary minimum reactor structure.

    摘要翻译: PCT No.PCT / JP97 / 03083 Sec。 一九九九年二月二十五日 102(e)1999年2月25日PCT PCT 1997年9月3日PCT公布。 出版物WO98 / 1998年3月12日,连续生产聚酯的设备包括三个单一反应器,即单一酯化反应器(第一反应器),单一初始聚合反应器(第二反应器)和单一最终聚合反应器(第三反应器或最终聚合反应器),其中 第一反应器和第二反应器中的至少一个没有外部搅拌动力源,或者第三反应器是水平单轴式低速旋转式反应器。 用于酯化和缩聚反应的必需数量的反应器可以是最小的,因此反应的必要搅拌功率消耗可以是一致的,因此可以在必要的最小反应器结构中以最小能量成本有效地生产质量好的聚酯聚合物。

    High-voltage resistor unit and high-voltage variable resistor unit
    18.
    发明授权
    High-voltage resistor unit and high-voltage variable resistor unit 失效
    高压电阻单元和高压可变电阻单元

    公开(公告)号:US5912613A

    公开(公告)日:1999-06-15

    申请号:US761330

    申请日:1996-12-10

    CPC分类号: H01C10/46

    摘要: A high-voltage resistor unit capable of minimizing a variation in output voltage thereof. The resistor unit includes an output terminal member provided with a contact section connected, by only contacting, to an output electrode formed on a front surface of a circuit board. The electrode contacted with the constant section of the terminal member has a surface section covered with a resistive paint layer, of which a resistance value in a thickness direction thereof is set to be smaller than a resistance value of a resistance circuit pattern formed on the front surface of the circuit board which resistance value is determined in a thickness direction thereof.

    摘要翻译: 一种能够最小化其输出电压变化的高压电阻器单元。 电阻器单元包括输出端子构件,该输出端子构件设置有仅通过接触连接到形成在电路板的前表面上的输出电极的接触部。 与端子构件的恒定部分接触的电极具有覆盖有电阻漆层的表面部分,其电阻值的厚度方向上的电阻值被设定为小于形成在前面的电阻电路图案的电阻值 电路板的表面在其厚度方向上确定电阻值。

    Packing material and air separator
    19.
    发明授权
    Packing material and air separator 失效
    包装材料和空气分离器

    公开(公告)号:US5653126A

    公开(公告)日:1997-08-05

    申请号:US523522

    申请日:1995-09-01

    摘要: A packing material capable of improving the uniformity of liquid distribution and of achieving a preferable gas-liquid contact reaction, even in the case where the specific surface area of the packing material is small, includes a plurality of projections provided on the surface of a thin plate, and a plurality of holes provided respectively between the projections. In one embodiment, the transfer extension of each projection is larger than a longitudinal extension thereof, so that descending liquid flows downward while being transversely dispersed by the projection. The holes are provided between the projections so that they do not obstruct the transfer dispersion of liquid at the projection. Moreover, the holes accelerate the transverse dispersion of liquid, or the dispersion of liquid between front and rear surfaces of the thin plate, by the surface tension of the liquid. As a result, excellent uniformity of liquid distribution can be obtained on the surface of the thin plate. An improved air separator containing the packing material incorporated into a rectifier for performing gas-liquid contact reaction is also disclosed.

    摘要翻译: 即使在包装材料的比表面积小的情况下,即使在薄的表面上设置有多个突起,也能够提高液体分布的均匀性和实现优选的气液接触反应的包装材料 板和分别设置在突起之间的多个孔。 在一个实施例中,每个突起的传送延伸比其纵向延伸更大,使得下降的液体向下流动,同时由突起横向分散。 这些孔设置在突起之间,使得它们不会阻碍液体在突起处的转移分散。 此外,通过液体的表面张力,这些孔加速了液体的横向分散或薄板前表面和后表面之间的液体分散。 结果,可以在薄板的表面上获得优异的液体分布均匀性。 还公开了一种改进的空气分离器,其包含并入整流器中用于进行气 - 液接触反应的包装材料。

    Evaluation method of flow analysis on molding of a molten material
    20.
    发明授权
    Evaluation method of flow analysis on molding of a molten material 失效
    流动分析成型材料成型的评价方法

    公开(公告)号:US5097431A

    公开(公告)日:1992-03-17

    申请号:US595770

    申请日:1990-10-10

    IPC分类号: B29C45/76

    摘要: An evaluation method analyzes flow on molding of a molten material. This is achieved in a system of making a flow analysis on an in-mold molten material through division of a molded part model into minute elements and numerical analysis thereof including the calculi of finite elements, boundary elements, finite differences, FAN and the like. One or more temperature conditions of the molten material are provided with a plurality of loading times or mold temperatures respectively for performing an analysis and from the obtained operational results of the pressure distribution of the molten material a function of the maximum molten material pressure of each element is provided. This function is graphically indicated on a display apparatus to evaluate the appropriate ranges of the molten material pressure and the loading time at a predetermined molten material temperature.

    摘要翻译: 评价方法分析熔融材料成型时的流动。 这是通过将模制部件模型分割成微小元件进行模内熔融材料的流动分析的系统和包括有限元,边界元素,有限差分FAN等的结构的数值分析的系统中实现的。 熔融材料的一个或多个温度条件分别具有分别用于进行分析的多个加载时间或模具温度,并且从获得的熔融材料的压力分布的操作结果中获得每个元件的最大熔融材料压力的函数 被提供。 该功能在显示装置上以图形方式表示,以评估在预定熔融材料温度下熔融材料压力和加载时间的适当范围。