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    Process for cooling flat plastic products
    2.
    发明授权
    Process for cooling flat plastic products 有权
    扁平塑料制品冷却工艺

    公开(公告)号：US08262966B2

    公开(公告)日：2012-09-11

    申请号：US12612989

    申请日：2009-11-05

    申请人： Klaus Becker ,  Michael Käthler

    发明人： Klaus Becker ,  Michael Käthler

    IPC分类号： B29C53/18 ,  B29C53/84

    CPC分类号： B29C47/886 ,  B29C47/0021 ,  B29C47/8845 ,  B29C47/906 ,  B29C47/92 ,  B29C2947/92209 ,  B29C2947/92247 ,  B29C2947/92428 ,  B29C2947/92571 ,  B29C2947/9259 ,  B29C2947/92647 ,  B29C2947/92704 ,  B29C2947/92923

    摘要： Method for cooling flat plastic products, in which plasticized plastic compound is fed to a calender via a slot nozzle by means of an extruder and is rolled and calibrated to the desired shape in this calender between at least two smoothing rolls, after which the film or sheet produced in this way is fed to a chill section comprising a plurality of adjustable rolls and passes through this section until it is sufficiently cool and dimensionally stable, at least both the gap width between the rolls and the speed of the rolls being controllable by open- and/or closed-loop control.The degree of wrap of the flat plastic product around the respective roll is varied by adjusting the rolls in the chill section into a mutually offset arrangement, hence increasing or minimizing the cooling capacity.

    摘要翻译： 冷却扁平塑料制品的方法，其中塑化塑料化合物通过挤出机通过狭槽喷嘴供给到压延机，并在至少两个平滑辊之间在该压延机中滚压和校准至所需形状，然后将薄膜或 以这种方式制造的片材被供给到包括多个可调节辊并且穿过该部分的冷却部分，直到其足够冷却并且尺寸稳定，至少辊之间的间隙宽度和辊的速度可以通过打开 - 和/或闭环控制。 通过将冷却部分中的辊调节为相互偏移的布置来改变扁平塑料制品围绕相应辊的卷绕程度，因此增加或最小化冷却能力。

    PROCESS FOR COOLING FLAT PLASTIC PRODUCTS
    3.
    发明申请
    PROCESS FOR COOLING FLAT PLASTIC PRODUCTS 有权
    冷却平板塑料制品的工艺

    公开(公告)号：US20100109180A1

    公开(公告)日：2010-05-06

    申请号：US12612989

    申请日：2009-11-05

    申请人： Klaus Becker ,  Michael Käthler

    发明人： Klaus Becker ,  Michael Käthler

    IPC分类号： B29C53/18 ,  B29C53/84

    CPC分类号： B29C47/886 ,  B29C47/0021 ,  B29C47/8845 ,  B29C47/906 ,  B29C47/92 ,  B29C2947/92209 ,  B29C2947/92247 ,  B29C2947/92428 ,  B29C2947/92571 ,  B29C2947/9259 ,  B29C2947/92647 ,  B29C2947/92704 ,  B29C2947/92923

    摘要： Method for cooling flat plastic products, in which plasticized plastic compound is fed to a calender via a slot nozzle by means of an extruder and is rolled and calibrated to the desired shape in this calender between at least two smoothing rolls, after which the film or sheet produced in this way is fed to a chill section comprising a plurality of adjustable rolls and passes through this section until it is sufficiently cool and dimensionally stable, at least both the gap width between the rolls and the speed of the rolls being controllable by open- and/or closed-loop control.According to the invention, the degree of wrap of the flat plastic product around the respective roll is varied by adjusting the rolls in the chill section into a mutually offset arrangement, hence increasing or minimizing the cooling capacity, the gap width, once specified, being held constant during each adjustment operation by means of an appropriate control system.

    摘要翻译： 冷却扁平塑料制品的方法，其中塑化塑料化合物通过挤出机通过狭槽喷嘴供给到压延机，并在至少两个平滑辊之间在该压延机中滚压和校准至所需形状，然后将薄膜或 以这种方式制造的片材被供给到包括多个可调节辊并且穿过该部分的冷却部分，直到其足够冷却并且尺寸稳定，至少辊之间的间隙宽度和辊的速度可以通过打开 - 和/或闭环控制。 根据本发明，通过将冷却部分中的辊调节为相互偏移的布置来改变扁平塑料制品围绕各个辊的卷绕程度，因此增加或最小化一旦指定的冷却能力，间隙宽度为 在每次调整操作期间通过适当的控制系统保持恒定。

    Method of producing thermoplastic polycarbonate films having low optical retardation values
    6.
    发明授权
    Method of producing thermoplastic polycarbonate films having low optical retardation values 失效
    具有低光学延迟值的热塑性聚碳酸酯膜的制造方法

    公开(公告)号：US06913714B2

    公开(公告)日：2005-07-05

    申请号：US10301175

    申请日：2002-11-21

    申请人： Shu Liu ,  Luis A. Colon

    发明人： Shu Liu ,  Luis A. Colon

    IPC分类号： B29C43/24 ,  B29C43/22 ,  B29C43/46 ,  B29C47/88 ,  B29C47/92 ,  B29D7/01 ,  B29K69/00 ,  B29L7/00 ,  B29D11/00

    CPC分类号： B29C47/8845 ,  B29C43/22 ,  B29C43/46 ,  B29C47/0021 ,  B29C47/886 ,  B29C47/889 ,  B29C47/92 ,  B29C2947/92095 ,  B29C2947/92123 ,  B29C2947/92209 ,  B29C2947/92247 ,  B29C2947/92409 ,  B29C2947/92447 ,  B29C2947/9259 ,  B29C2947/92609 ,  B29C2947/92704 ,  B29C2947/92904 ,  B29C2947/92923 ,  B29D7/01 ,  B29K2069/00 ,  B29K2995/0032

    摘要： A method of preparing a thermoplastic polycarbonate film having an optical retardation value of less than or equal to 20 nm, is described. The method includes: (a) forming a molten extrudate (20) of a thermoplastic polycarbonate polymer in an extruder (11) having a terminal die (17) through which the molten extrudate is passed, the molten extrudate having a temperature of 150° C. to 400° C. upon emerging from terminal die (17); and (b) passing molten extrudate (20), from die (17), between two counter-rotating rolls (23 and 26) each having an elastomeric polymer surface (35 and 38), the counter-rotating rolls having a roll speed ratio and a nip (41), the distance between the terminal die (17) and the nip (41) being a die-nip distance (47). The extrudate temperature, the roll speed ratio and the die-nip distance (47) are each selected such that a thermoplastic polycarbonate film (32) having an optical retardation value of less than or equal to 20 nm is formed.

    摘要翻译： 描述了制备具有小于或等于20nm的光学延迟值的热塑性聚碳酸酯膜的方法。 该方法包括：（a）在挤出机（11）中形成热塑性聚碳酸酯聚合物的熔融挤出物（20），该挤出机具有熔融挤出物通过的末端模头（17），熔融挤出物的温度为150℃ 在从端子模具（17）出来时达到400℃; 和（b）使来自模具（17）的熔融挤出物（20）在具有弹性体聚合物表面（35和38）的两个反转辊（23和26）之间通过，所述反向旋转辊具有辊速比 和辊隙（41）之间，所述端子模具（17）和压区（41）之间的距离为压模间隙距离（47）。 挤出物温度，辊速比和模夹间距（47）各自被选择成使得具有小于或等于20nm的光学延迟值的热塑性聚碳酸酯膜（32）形成。

    Method and apparatus for checking the wall thickness of a layer
    9.
    发明授权
    Method and apparatus for checking the wall thickness of a layer 失效
    用于检查层的壁厚的方法和装置

    公开(公告)号：US4641525A

    公开(公告)日：1987-02-10

    申请号：US743298

    申请日：1985-06-10

    申请人： Hubert Merki

    发明人： Hubert Merki

    IPC分类号： B29C48/325 ,  B29C48/92 ,  G01B7/00 ,  G01B7/06 ,  G01B7/12 ,  G01B7/312 ,  G01B7/34 ,  G01B11/10 ,  G01B21/02 ,  G01B21/08 ,  G01B21/30 ,  G01R31/02 ,  H01B13/14 ,  G01B7/10

    CPC分类号： B29C47/92 ,  B29C47/225 ,  G01B11/105 ,  G01B21/02 ,  G01B7/06 ,  G01B7/125 ,  G01B7/312 ,  G01R31/022 ,  H01B13/146 ,  B29C2947/92076 ,  B29C2947/92114 ,  B29C2947/92123 ,  B29C2947/92152 ,  B29C2947/92247 ,  B29C2947/92276 ,  B29C2947/92447 ,  B29C2947/92533 ,  B29C2947/92571 ,  B29C2947/9298 ,  B29C47/0016

    摘要： In a method of checking the insulating sheath on a wire or cable leaving an extruder, the external diameter of the insulating sheath is continuously determined over the whole circumference by means of a first measuring apparatus and the wall thickness of the insulation is continuously detected over the whole circumference by means of a second measuring apparatus. The measured values are supplied to a computer which, inter alia, continuously determines the difference between the maximum and minimum wall thicknesses found (W.sub.max -W.sub.min). Eccentricity and minimum wall thickness of the sheath are calculated from this difference and from the measured external diameter of the insulation and the diameter of the conductor of the wire or cable, and are indicated in a display device. The measurement is thus rendered largely independent of fluctuations in sensitivity of the measuring apparatus for the wall thickness of the insulation. An apparatus for carrying out the method comprises the respective measuring apparatus and a computer for effecting the required calculations.

    摘要翻译： 在离开挤出机的电线或电缆上检查绝缘护套的方法中，通过第一测量装置在整个圆周上连续地确定绝缘护套的外径，并且绝缘护套的壁厚在 整周，借助于第二测量装置。 将测量值提供给计算机，其中尤其连续地确定找到的最大和最小壁厚之差（Wmax-Wmin）。 根据该差异以及绝缘体的测量外径和电线或电缆的导体的直径计算护套的偏心度和最小壁厚，并在显示装置中指示。 因此，测量很大程度上与测量装置对绝缘体的壁厚的灵敏度的波动无关。 用于执行该方法的装置包括相应的测量装置和用于执行所需计算的计算机。