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    Homogeneous mixture of polymethacrylimide polymers
    3.
    发明授权
    Homogeneous mixture of polymethacrylimide polymers 失效
    聚异丁烯酰胺聚合物均质混合物

    公开(公告)号：US5135985A

    公开(公告)日：1992-08-04

    申请号：US698291

    申请日：1991-05-10

    申请人： Werner Hoess ,  Heinz Vetter ,  Jens-Dieter Fischer ,  Hartmut Schikowsky

    发明人： Werner Hoess ,  Heinz Vetter ,  Jens-Dieter Fischer ,  Hartmut Schikowsky

    IPC分类号： C08L33/00 ,  C08L33/24

    CPC分类号： C08L33/24

    摘要： Homogeneous polymer mixtures of polymethacrylimides consist of a component (A), composed of from 30 to 90 percent by weight of methacrylalkylimide units and from 3.5 to 10 percent by weight of methacrylic acid units, and of a component (B1) or (B2) having from 10 to 50 percent by weight more methacrylalkylimide units than component (A), component (B1) having a degree of imidization of less than 95 percent and containing from 3.5 to 10 percent by weight of methacrylic acid units, and component (B2) having a degree of imidization greater than 95 percent and containing less than 3.5 percent by weight of methacrylic acid units.

    摘要翻译： 聚甲基丙烯酰亚胺的均匀聚合物混合物由组分（A）组成，组分（A）由30至90重量％的甲基丙烯酸烷基酰亚胺单元和3.5至10重量％的甲基丙烯酸单元组成，组分（B1）或（B2） 10重量％以上50重量％以上的成分（A），亚胺化度小于95重量％，含有3.5〜10重量％甲基丙烯酸单元的成分（B1），和（B2）成分 亚胺化程度大于95％，含有少于3.5％（重量）的甲基丙烯酸单元。

    Process for the short-time treatment of a plastic melt with a liquid treatment agent and the plastic thus produced
    4.
    发明授权
    Process for the short-time treatment of a plastic melt with a liquid treatment agent and the plastic thus produced 失效
    用液体处理剂短时间处理塑料熔体的方法和由此生产的塑料

    公开(公告)号：US5548033A

    公开(公告)日：1996-08-20

    申请号：US379999

    申请日：1995-01-27

    申请人： Heinz Vetter ,  Werner Hoess ,  Joachim Dutschke ,  Hartmut Schikowsky

    发明人： Heinz Vetter ,  Werner Hoess ,  Joachim Dutschke ,  Hartmut Schikowsky

    IPC分类号： B29B7/38 ,  B29B7/84 ,  B29B7/88 ,  B29B13/00 ,  B29C47/52 ,  B29K33/04 ,  C08F6/00 ,  C08F8/32

    CPC分类号： B29C47/527 ,  B29C47/0009

    摘要： A plastic melt is treated for a short-time with a liquid treatment agent under pressure, it is divided into defined subquantities, individual subquantities are brought into contact with a treatment agent and combined for a residence time of less than one second with portions of at least one other subquantity, and portions of the mixture thus formed are separated and combined with another subquantity; the steps of dividing and combining the mixture are repeated several times at intervals of less than one second until an intimate mixture of the plastic melt and the treatment agent has formed, allowing the preparation of especially homogeneously structured thermoplastic materials, e.g., poly(methacrylalkylimide) plastics, which are compatible with poly(methyl methacrylate).

    摘要翻译： 塑料熔体在压力下用液体处理剂短时间处理，分为限定的量级，各个次要物质与处理剂接触并结合使用少于1秒的停留时间，其中部分 至少一个其他的次数，并且如此形成的混合物的部分与另一个次级分离并组合; 将混合物分离和组合的步骤以小于1秒的间隔重复数次，直到形成塑料熔体和处理剂的紧密混合物，允许制备特别均匀结构的热塑性材料，例如聚（甲基丙烯酸烷基酯酰亚胺） 塑料，其与聚（甲基丙烯酸甲酯）相容。

    Method for dewatering a molten synthetic resin
    5.
    发明授权
    Method for dewatering a molten synthetic resin 失效
    熔融合成树脂的脱水方法

    公开(公告)号：US5650107A

    公开(公告)日：1997-07-22

    申请号：US439847

    申请日：1995-05-12

    申请人： Heinz Vetter ,  Hartmut Schikowsky

    发明人： Heinz Vetter ,  Hartmut Schikowsky

    IPC分类号： B29B13/06 ,  B29C47/40 ,  B29C47/76 ,  C08F6/22 ,  B29B7/48 ,  B29B7/84 ,  B29C47/60

    CPC分类号： B29C47/76 ,  B29C47/366 ,  C08F6/22 ,  B29C47/0009 ,  B29K2021/00

    摘要： A two phase liquid mixture of a thermoplastic synthetic resin melt and an aqueous phase, such as a latex coagulate, is dewatered in a counter-rotating twin screw extruder under a pressure which is greater that the water vapor pressure at the temperature of the melt of the thermoplastic synthetic resin by conveying the melt into partially filled screw channels in the dewatering zone and restricting it in at least one of these screw channels in the entry nip of the twin screws to create a local, narrowly limited, steep pressure gradient and to form a coherent melt cake, and draining the water in liquid form from beneath under gravity upstream from the boundary of the melt cake so that the melt cake does not stand in contact with a coherent aqueous phase.

    摘要翻译： 将热塑性合成树脂熔体和水相如胶乳凝结体的两相液体混合物在反向旋转双螺杆挤出机中在比熔体温度下的水蒸汽压力大的压力下脱水 热塑性合成树脂通过将熔体输送到脱水区中的部分填充的螺旋通道中并将其限制在双螺杆的进入辊隙中的这些螺旋通道中的至少一个中，以产生局部，狭窄限制的陡峭的压力梯度并形成 一个连贯的熔融饼，并且在重力上游从熔融块边界的下方排出液体形式的水，使得熔饼不与相干的水相接触。

    Two-step method for dehydrating plastic dispersions
    6.
    发明授权
    Two-step method for dehydrating plastic dispersions 失效
    脱水塑料分散体的两步法

    公开(公告)号：US06287470B1

    公开(公告)日：2001-09-11

    申请号：US09403770

    申请日：1999-12-13

    申请人： Heinz Vetter ,  Hartmut Schikowsky ,  Werner Hoess

    发明人： Heinz Vetter ,  Hartmut Schikowsky ,  Werner Hoess

    IPC分类号： B01D1900

    CPC分类号： B29B15/04 ,  B29B7/40 ,  B29B7/46 ,  B29B7/842 ,  B29B7/845 ,  B29B9/06 ,  B29C47/0009 ,  B29C47/50 ,  B29C47/76 ,  C08F6/005 ,  C08F6/22

    摘要： The invention relates to a method for dehydrating a two-phase liquid mixture consisting of a thermoplastic synthetic melt phase and an aqueous phase, comprising the following steps: a) coagulation of the two-phase liquid mixture in a first extruder; b) dehydration of the coagulate in a twin screw extruder with a de-watering zone and screws working in an opposite direction; c) separation of constituents by degasifying. The inventive method is characterized in that a single screw extruder or a twin screw extruder with screws working in the same direction is used as a first extruder in step a).

    摘要翻译： 本发明涉及一种使由热塑性合成熔融相和水相组成的两相液体混合物脱水的方法，包括以下步骤：a）在第一挤出机中使两相液体混合物凝结; b）在具有脱水区域的双螺杆挤出机中将凝结物脱水并沿相反方向工作的螺杆; c）通过脱气分离成分。 本发明的方法的特征在于，在步骤a）中使用具有沿相同方向工作的螺杆的单螺杆挤出机或双螺杆挤出机作为第一挤出机。

    Extrusion nozzle
    10.
    发明授权
    Extrusion nozzle 失效
    挤出喷嘴

    公开(公告)号：US4372739A

    公开(公告)日：1983-02-08

    申请号：US263263

    申请日：1981-05-13

    申请人： Heinz Vetter ,  Ernst Friederich

    发明人： Heinz Vetter ,  Ernst Friederich

    IPC分类号： B29B7/00 ,  B29C47/00 ,  B29C47/14 ,  B29C47/16 ,  B29C47/92 ,  B29F3/04

    CPC分类号： B29C47/0816 ,  B29C47/16 ,  B29C47/92 ,  B29C2947/92647 ,  B29C2947/92904 ,  B29C47/0021 ,  B29C47/165

    摘要： What is disclosed is an adjustable wide-slit extrusion nozzle containing a distributor channel having a straight exit edge and a cross-section taken from the supply port for the nozzle to one end thereof which corresponds to the equation:R.sub.i =R.sub.o (b/B).sup.1/3,wherein:B is the width of the distributor channel from the supply port to one end of the channel;b is a width coordinate measured from one end of the distributor channel;R.sub.o is the hydraulic radius of the distributor channel at the supply port; andR.sub.i is the hydraulic radius of the distributor channel at the distance b from the channel end.At least one choker bar insert is placed between the distributor channel and the nozzle mouth; the choker bar has a damming area surface whose length dimensions L.sub.i in the direction of flow at distances b from the channel end correspond to the equationL.sub.i =L.sub.o (b/B ).sup.2/3,whereinL.sub.o is the length of the damming strip at the supply port;L.sub.i is the length in flow direction of the damming area at the selected distance b from the channel end; andb and B are defined as above.The damming area rises above the remaining surface area of the insert, before or behind the damming area surface, in a uniform jump H, of from 0.1 to 5 times the exit height H.sub.3 of the nozzle and is a height-adjustable parallel faced mounted in the nozzle.

    摘要翻译： 所公开的是一种可调节宽缝挤出喷嘴，其包含具有直的出口边缘的分配器通道和从用于喷嘴的供应端口到其一端的横截面，其对应于以下等式：Ri = Ro（b / B ）1/3，其中：B是从供给端口到通道一端的分配器通道的宽度; b是从分配器通道的一端测量的宽度坐标; Ro是供应口上分配器通道的液压半径; 并且Ri是距离通道端距离b的分配器通道的液压半径。 在分配器通道和喷嘴口之间放置至少一个阻塞杆插入件; 阻塞杆具有阻挡区域表面，其长度尺寸Li在距离通道端的距离b处的流动方向对应于方程式Li = Lo（b / B）2/3，其中Lo是阻挡带的长度 供应口; Li是从通道端选择的距离b处的阻挡区域的流动方向的长度; 并且b和B如上所定义。 阻塞区域高于插入件的剩余表面积，在阻挡区域表面之前或之后，以均匀跳动H为喷嘴出口高度H3的0.1至5倍，并且是高度可调平行面安装在 喷嘴。