公开(公告)号：US4235834A

公开(公告)日：1980-11-25

申请号：US877283

申请日：1978-02-13

申请人： Heinz Vetter ,  Ernst Friederich ,  Karl-Heinz Schanz ,  Hartmut Schikowsky

发明人： Heinz Vetter ,  Ernst Friederich ,  Karl-Heinz Schanz ,  Hartmut Schikowsky

IPC分类号： B29C49/00 ,  B29C33/60 ,  B29C35/00 ,  B29C47/94 ,  B29C55/00 ,  B29C55/12 ,  B29C55/18 ,  B29C55/30 ,  C08J5/18 ,  B29C17/02 ,  B29D7/24

CPC分类号： B29C55/30 ,  B29C33/60 ,  B29C47/0021 ,  B29C47/94 ,  B29C55/18 ,  B29C35/00 ,  B29C47/0019 ,  B29K2031/00

摘要： A method is disclosed for biaxially stretching a band of thermoplastic resin which comprises attenuating a band of unstretched resin, in a forming zone while the resin is in the thermoelastic condition, by passing the band between two surfaces spaced at a distance less than the thickness of said band of unstretched resin while permitting said band to expand in width, and then cooling said band to a temperature below the softening point of the resin while maintaining the dimensions of the attenuated and expanded band; apparatus for performing such a method is also disclosed.

摘要翻译： 公开了一种用于双轴拉伸热塑性树脂带的方法，该方法包括在树脂处于热弹性状态时在成形区中使未拉伸树脂的带衰减，通过使两个表面之间的间隔距离小于 所述带未拉伸树脂，同时允许所述带宽度膨胀，然后将所述带冷却至低于树脂软化点的温度，同时保持衰减和膨胀带的尺寸; 还公开了用于执行这种方法的装置。

公开(公告)号：US4569875A

公开(公告)日：1986-02-11

申请号：US570298

申请日：1984-01-13

申请人： Klaus E. Pohlmann ,  Heinz Vetter ,  Ernst Friederich

发明人： Klaus E. Pohlmann ,  Heinz Vetter ,  Ernst Friederich

IPC分类号： B32B7/02 ,  B29C47/00 ,  B29C47/04 ,  B29C47/20 ,  B32B3/26 ,  B32B27/30 ,  B32B27/36 ,  E04C2/54 ,  B32B3/12 ,  B32B27/08

CPC分类号： B29C47/003 ,  B29C47/0028 ,  B29C47/065 ,  B29C47/128 ,  B32B3/26 ,  E04C2/543 ,  B29C47/0019 ,  B29C47/0038 ,  B29C47/0054 ,  B29C47/067 ,  B29K2033/00 ,  B29K2069/00 ,  B29L2024/00 ,  B29L2031/60 ,  Y10T428/24174 ,  Y10T428/24744 ,  Y10T428/2495 ,  Y10T428/24967 ,  Y10T428/26 ,  Y10T428/31507 ,  Y10T428/31928 ,  Y10T428/31935

摘要： A multilayer web panel with improved impact resistance having two substantially flat exterior walls and webs connecting the walls as one piece. At least one exterior wall has at least two adhesively bonded layers of one or more plastics, wherein the bearing layer of the exterior wall consists of an acrylic glass layer which is about 50% or more of the total thickness of the exterior wall, and the inner side of the acrylic glass layer has a thinner inner layer which is adhesively bonded thereto and is made of a plastic with a higher elongation at rupture than that of the acrylic glass.

摘要翻译： 具有改进的耐冲击性的多层网板具有两个基本上平坦的外壁和将壁连接成一体的腹板。 至少一个外壁具有一个或多个塑料的至少两个粘合层，其中外壁的承载层由丙烯酸玻璃层组成，该丙烯酸玻璃层为外壁总厚度的约50％或更多， 丙烯酸玻璃层的内侧具有较薄的内层，其粘合到其上并且由具有比丙烯酸玻璃的断裂伸长率高的塑料制成。

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。

公开(公告)号：US4101617A

公开(公告)日：1978-07-18

申请号：US647793

申请日：1976-01-09

申请人： Ernst Friederich

发明人： Ernst Friederich

IPC分类号： B29C45/17 ,  B29C5/06

CPC分类号： B29C45/1705 ,  B29C45/1704 ,  B29C2045/1718 ,  B29C2045/1729

摘要： A method for making a hollow shaped body from a thermoplastic resin by injection molding, which method comprises injecting an amount of molten resin sufficient for the preparation of the hollow shaped body from an injection nozzle into a mold through an injection aperture in said mold, injecting gas under pressure through said injection nozzle and aperture to expand and distribute the molten resin over the interior surfaces of the mold, whereby said hollow shaped body is formed within said mold with a gas-entry opening in said hollow shaped body, cooling the hollow shaped resin body so formed to a temperature beneath the softening point of the resin, opening the interior of the hollow shaped body to equalize the pressure therein with ambient pressure, and then opening said mold to remove said hollow shaped body.

摘要翻译： 一种通过注射成型从热塑性树脂制造中空成型体的方法，该方法包括通过注射孔将注射成型体中足够的足够的用于制备中空成型体的熔融树脂从注射喷嘴注入模具，注入 通过所述注射喷嘴和孔的气体在所述模具的内表面上膨胀和分配，由此所述中空成型体在所述模具内形成有在所述中空成形体中的气体入口， 树脂体形成为树脂软化点以下的温度，打开中空成形体的内部以使其中的压力与环境压力相等，然后打开所述模具以移除所述中空成形体。