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41. 发明授权

US5063016A Production of hardwearing and shock-resistant extrudates of ultra-high molecular weight polyethylene and apparatus for this purpose 失效
标题翻译：生产超高分子量聚乙烯的硬度和抗电击挤出剂及其用途
公开(公告)号：US5063016A
公开(公告)日：1991-11-05
申请号：US520768
申请日：1990-05-09
申请人： Peter Bauer , Rainer Konrad , Herbert Morgenstern , Horst Schuch
发明人： Peter Bauer , Rainer Konrad , Herbert Morgenstern , Horst Schuch
IPC分类号： B29C47/38 , B29C47/00 , B29C47/60 , B29C47/62 , B29C47/82 , B29C47/86 , B29K23/00
CPC分类号： B29C47/82 , B29C47/0004 , B29C47/0023 , B29C47/60 , B29C47/6018 , B29C47/622 , B29C47/625 , B29C47/788 , B29C47/822 , B29C47/86 , B29C47/0009 , B29K2023/06 , B29K2995/0088
摘要： For the production of extrudates of ultra-high molecular weight polyethylene, finely divided polyethylene or polyethylene powder is introduced into the cooled feed zone of a single-screw extruder and compressed therein, melted in a transport zone of the extruder and discharge with shaping of the extrudate and cooling. The polyethylene is processed in the transport zone using a velocity gradient of from 50 to 1,000 sec.sup.-1 in the radial play between the screw and the extruder barrel, heated to 180.degree.-280.degree. C. and then transferred to a screw-free zone in which final shaping of the extrudate is effected.
摘要翻译：为了生产超高分子量聚乙烯的挤出物，将细碎的聚乙烯或聚乙烯粉末引入单螺杆挤出机的冷却进料区并压缩，在挤出机的输送区中熔化，挤出和冷却。聚乙烯在输送区使用在螺杆和挤出机筒之间的径向间隙中的50-1,000秒-1的速度梯度加工，加热到180-280℃，然后转移到无螺杆区其中实现挤出物的最终成型。

42. 发明授权

US5030404A Water-resistant polyvinyl alcohol film and its application to the preparation of gas-impermeable composite articles 失效
标题翻译：防水聚乙烯醇薄膜及其在不透气复合制品中的应用
公开(公告)号：US5030404A
公开(公告)日：1991-07-09
申请号：US462885
申请日：1990-01-03
申请人： Claude Bonnebat , Louis Macabrey , Gilbert Roullet
发明人： Claude Bonnebat , Louis Macabrey , Gilbert Roullet
IPC分类号： B29C47/00 , B29C47/02 , B29C47/86 , B29C49/22 , B32B27/30 , C08J5/18
CPC分类号： C08J5/18 , B29C47/0021 , B29C47/0026 , B29C47/827 , B29C47/86 , B29C47/864 , B29C47/8845 , B29C49/22 , B32B27/30 , B29C47/0004 , B29C47/0057 , B29C47/0059 , B29C47/0064 , B29C47/0066 , B29C47/021 , B29C47/92 , B29K2029/00 , C08J2329/04 , Y10S428/913 , Y10T428/1359 , Y10T428/1379 , Y10T428/24967 , Y10T428/2982 , Y10T428/31507 , Y10T428/31681 , Y10T428/31692 , Y10T428/31699 , Y10T428/31913 , Y10T428/3192 , Y10T428/31928
摘要： Polyvinyl alcohol films are provided which are gelled, non-tacky, bubble-free and resistant to water at ambient temperatures. The polyvinyl alcohol film is obtained by plasticizing (fluxing) and melting granules of pure polyvinyl alcohol containing from 25 to 35% by weight of water at a temperature at least 100.degree. C. above the equilibrium melting point of the granules and less than or equal to 220.degree. C., and extruding the melted granules through a die at a temperature at least 5.degree. C. above the equilibrium melting point of the granules and less than or equal to 98.degree. C., optionally followed by monoaxial stretching or biaxial stretching of the unstretched film obtained. The stretched or unstretched film may be heat-treated to improve its properties. The polyvinyl alcohol film can be used to prepare with thermoplastic films composite films or sheets having a high gas impermeability. The invention also provides composite, biaxially oriented, impermeable barrier layer coated, thermoplastic hollow shaped articles useful as packaging materials, e.g., as packages and bottles for flavored foods and carbonated beverages. The hollow shaped articles are produced by externally barrier covering a thermoplastic tubular blank, parison or preform with a relatively thick barrier layer consisting essentially of water-resistant and highly crystalline polyvinyl alcohol, said barrier layer having been prepared by shaping a melt of homogeneously shear fluxed and molten flakes or pure polyvinyl alcohol having a water content of 25 to 35% by weight thereof, with said shear fluxing and melting of said polyvinyl alcohol flakes being at a temperature above the equilibrium melting point of the polyvinyl alcohol/water admixture essentially constituting said flakes, and said shaping being at a temperature of at least said equilibrium melting point but less than that at which the vapor pressure of the component water would effect the surface expansion and bubbling of the desired barrier layer, and thence biaxially orienting and blow molding into final configuration said barrier covered blank, parison or preform.

43. 发明授权

US4966536A Film blowing line with roll 失效
标题翻译：吹膜线卷
公开(公告)号：US4966536A
公开(公告)日：1990-10-30
申请号：US288006
申请日：1988-12-21
申请人： Karl Veit-Holger
发明人： Karl Veit-Holger
IPC分类号： B29C47/00 , B29C47/22 , B29C47/86 , B29C47/88 , B29C47/92
CPC分类号： B29C47/92 , B29C47/0026 , B29C47/22 , B29C47/86 , B29C47/864 , B29C47/8835 , B29C2947/92123 , B29C2947/92438 , B29C2947/926 , B29C2947/92619 , B29C2947/92647 , B29C2947/92704 , B29C2947/92904 , B29C2947/92923 , B29C2947/92933 , B29C47/0057 , B29C47/0059
摘要： A film blowing line is disclosed which includes a winding roll to receive a folded film; the film having initially been tubular in shape. In the invention, the diameter of the winding roll is measured in an axial direction and, correspondingly, the thickness can be controlled with the aid of an actuating member, as a rule, differentially across the circumference of the tubular film.
摘要翻译：公开了一种吹膜生产线，其包括用于接收折叠膜的卷绕辊; 该膜最初是管形的。在本发明中，缠绕辊的直径在轴向方向上被测量，并且相应地，可以借助于致动构件来控制厚度，通常在管状膜的圆周上有差异地。

44. 发明授权

US4913863A Split extrusion die assembly for thermoplastic materials and methods of using the same 失效
标题翻译：用于热塑性材料的分体挤出模头组件及其使用方法
公开(公告)号：US4913863A
公开(公告)日：1990-04-03
申请号：US303215
申请日：1989-01-30
申请人： John F. Burrafato , Robert E. Hooper
发明人： John F. Burrafato , Robert E. Hooper
IPC分类号： B29C47/08 , B29C47/12 , B29C47/86 , B29C47/88 , B29C47/92
CPC分类号： B29C47/0822 , B29C47/0016 , B29C47/003 , B29C47/0808 , B29C47/12 , B29C47/86 , B29C47/862 , B29C47/864 , B29C47/8895 , B29C47/92 , B29C2947/92704 , B29C2947/92904 , B29C2947/92923
摘要： A die spool for the extrusion of thermoplastic materials includes an axially split elongate spool body so as to be separable into first and second spool segments. The spool segments collectively establish the spool body and also define an axially oriented extrusion cavity through which thermoplastic material is conveyed. An alignment system ensures that only a single orientation of the extrusion axis is possible when the die spool is coupled to another similar die spool (or to an extrusion die associated with an extruder). A die spool assembly may therefore be provided which is comprised of a number of individual die spools. Preferably, a decreasing temperature gradient is established within the extrusion cavity of the die spool assembly (as may be accomplished by controllably operating electrical resistive heater elements) so as to at least partially solidify the thermoplastic extrudate therewithin. During extrusion start-up, a lower die spool segment is employed to support an initial length of thermoplastic extrudate, with the upper die spool segment being mated therewith (thereby collectively defining the extrusion cavity) once the extrudate extends beyond the downstream end of the lower segment. In such a manner, manual conveyance assistance along the extrusion axis may be imparted to the extrudate during start-up.

45. 发明授权

US4895744A Method of making a multi-layer parison 失效
标题翻译：制作多层型坯的方法
公开(公告)号：US4895744A
公开(公告)日：1990-01-23
申请号：US221598
申请日：1988-07-20
申请人： Milton Briggs , Erich O. Teutsch
发明人： Milton Briggs , Erich O. Teutsch
IPC分类号： B29C47/06 , B29C47/28 , B29C47/86
CPC分类号： B29C47/0023 , B29C47/0021 , B29C47/065 , B29C47/263 , B29C47/28 , B29C47/86 , B29C47/862 , B29C47/8845 , B29C47/0026 , B29C47/26 , Y10T428/1352 , Y10T428/1383
摘要： A method of fabricating a multi-layered parison having adjacent layers of different polymeric resins with incompatible melt flow temperatures without degrading the polymeric resin having the lower melt flow temperature.
摘要翻译：一种制造具有不相容熔体流动温度的不同聚合物树脂相邻层的多层型坯的方法，而不降低具有较低熔体流动温度的聚合物树脂。

46. 发明授权

US4773954A Method of and apparatus for extrusion 失效
标题翻译：挤出方法和设备
公开(公告)号：US4773954A
公开(公告)日：1988-09-27
申请号：US12586
申请日：1987-02-09
申请人： Ralph E. Starnes, Jr.
发明人： Ralph E. Starnes, Jr.
IPC分类号： B29C47/06 , B29C47/28 , B29C47/86
CPC分类号： B29C47/28 , B29C47/0007 , B29C47/0023 , B29C47/005 , B29C47/065 , B29C47/86 , B29C47/862 , B29C47/864 , B29C47/0014 , B29C47/1036
摘要： A method of and apparatus for simultaneously extruding a coating comprising a plurality of layers of dissimilar plastic compounds having substantially different melting points onto a moving electrical conductor wherein the plastic compounds are mechanically and thermally separated. Separating the two plastics prevents thermal degradation of the two extrudates by causing their melt temperatures to remain substantially constant.
摘要翻译：一种用于同时挤出涂层的方法和装置，其包括具有实质上不同熔点的多个不同塑料化合物层到移动电导体上，其中塑料化合物被机械和热分离。分离两种塑料通过使它们的熔融温度保持基本上恒定来防止两种挤出物的热降解。

47. 发明授权

US4760228A Microwave heating device 失效
标题翻译：微波加热装置
公开(公告)号：US4760228A
公开(公告)日：1988-07-26
申请号：US3846
申请日：1987-01-16
申请人： Minoru Kudo
发明人： Minoru Kudo
IPC分类号： B29C35/08 , B29C35/10 , B29C45/00 , B29C45/74 , B29C47/00 , B29C47/86 , B29C47/92 , H05B6/78 , H05B9/06
CPC分类号： B29C47/92 , B29C35/10 , B29C45/74 , B29C47/86 , B29C47/862 , H05B6/788 , B29C2035/0855 , B29C2947/92514 , B29C2947/92704 , B29C2947/92895 , B29C45/00 , B29C47/00 , B29C47/0009
摘要： A microwave heating device for using microwave energy to heat a high polymer material or the like being conveyed under pressure comprises a hollow, cylindrical microwave waveguide closed at one end and having a metallic shell capable of withstanding high internal pressures, a pressure partition made from a dielectric material provided within said waveguide near an open end thereof so as to define a sealed space between itself and the closed end of said waveguide and to define a path for introduction of microwaves between itself and the open end of said waveguide, a solid or liquid dielectric packing material filling said sealed space and thereby forming a packed dielectric region, said packing material having a lower specific inductive capacity than that of the material to be heated, a passage for pressurized conveyance of the material to be heated, said passage running transversely through said waveguide at said packed dielectric region thereof, and a microwave generator for transmitting microwaves into said waveguide, the pressure within said passage is supported by said waveguide, said pressure partition and the closed end of said waveguide.
摘要翻译：用于使用微波能量加热在压力下输送的高聚物材料等的微波加热装置包括一个中空的圆柱形微波波导，其在一端封闭并具有能承受高内压的金属壳，由电介质材料设置在所述波导内靠近其开口端，以便在其自身和所述波导的封闭端之间限定一个密封空间，并且限定用于在其与所述波导的开口端之间引入微波的路径，固体或液体电介质填充材料填充所述密封空间，从而形成填充介质区域，所述包装材料具有比待加热材料低的比感应能力，用于被加热材料的加压输送的通道，所述通道横向穿过所述波导在其所述堆叠的介电区域，以及用于透射的微波发生器微波进入所述波导，所述通道内的压力由所述波导，所述压力分隔和所述波导的封闭端支撑。

48. 发明授权

US4734240A Melt-extrusion of polymer which is capable of forming an anisotropic melt phase to form large shaped articles exhibiting improved polymeric orientation 失效
标题翻译：能够形成各向异性熔融相的聚合物的熔融挤出以形成具有改进的聚合物取向的大型制品
公开(公告)号：US4734240A
公开(公告)日：1988-03-29
申请号：US822091
申请日：1986-01-24
申请人： Tai-Shung Chung , Sunil K. Garg , Daniel Palangio
发明人： Tai-Shung Chung , Sunil K. Garg , Daniel Palangio
IPC分类号： B29C47/00 , B29C47/28 , B29C47/86 , B29C47/88
CPC分类号： B29C47/28 , B29C47/0004 , B29C47/86 , B29C47/864 , B29C47/0014 , B29C47/0021 , B29C47/0026 , B29C47/003 , B29K2105/0079
摘要： An improved technique is provided to melt-extrude a liquid crystalline polymer to form large elongated solid shaped articles which exhibit significantly improved polymeric orientation. The molten polymer which is capable of forming an anisotropic melt phase is extruded through a converging die that is provided with at least one enclosed cooling zone at an interior location within the flowing molten polymer wherein a cooling fluid is circulated. This cools the molten polymer adjacent the cooling zone with the concomitant increase in its melt viscosity. Such increased melt viscosity at the interior of the stream of the molten polymer contributes to the uniformity of the polymeric orientation imparted within the converging die as well as during subsequent drawdown outside the extrusion orifice. Such improved polymeric orientation leads to the formation of an improved product (e.g., a three-dimensional rod) which exhibits an unusually high tensile modulus in the direction of its length. The present invention accordingly overcomes difficulties encountered in the prior art wherein melt-extruded shaped articles significantly larger than fibers heretofore often have exhibited substantial internal heterogeneity and a highly oriented skin and a core of a substantially lesser polymeric orientation.
摘要翻译：提供了一种改进的技术来熔融挤出液晶聚合物以形成显着改善的聚合物取向的大型细长固体成形制品。能够形成各向异性熔融相的熔融聚合物通过在流动的熔融聚合物内的内部位置设置有冷却流体循环的至少一个封闭的冷却区的会聚模挤出。这样使冷却区附近的熔融聚合物冷却，伴随着其熔体粘度的增加。在熔融聚合物流内部的这种增加的熔体粘度有助于在会聚模具内以及随后在挤压孔外部的压下之间施加的聚合物取向的均匀性。这种改进的聚合物取向导致形成在其长度方向表现出非常高的拉伸模量的改进的产品（例如，三维棒）。因此，本发明克服了现有技术中遇到的困难，其中明显大于迄今为止的纤维的熔融挤出成型制品经常表现出显着的内部异质性和高度取向的皮肤和基本上较小的聚合物取向的芯。

49. 发明授权

US4655704A Cooling system for a plastic extrusion calibrating tool 失效
标题翻译：塑料挤出校准工具的冷却系统
公开(公告)号：US4655704A
公开(公告)日：1987-04-07
申请号：US840014
申请日：1986-03-17
申请人： Joseph Dekel
发明人： Joseph Dekel
IPC分类号： B29C47/88 , B29C47/90 , B29C47/12 , B29C47/86
CPC分类号： B29C47/908 , B29C47/90 , B29C2791/006 , B29C47/0009 , B29C47/8835 , B29C47/884 , B29C47/904
摘要： A cooling fluid path formed in a calibrating tool body member includes a plurality of parallel openings extending within the body member from one side of the body member. The one side of the body member includes a slot interconnecting the parallel openings. A plate member covers the one side of the body member to close the slot to form a fluid path. A plurality of baffle members, each positioned from the plate member and across the slot and within one of the openings partially along the length of the opening, forms a serpentine fluid path back and forth within each opening on both sides of the baffle and between adjacent openings within the slot.
摘要翻译：形成在校准工具主体构件中的冷却流体路径包括从本体构件的一侧在主体构件内延伸的多个平行的开口。主体构件的一侧包括互连平行开口的槽。板构件覆盖主体构件的一侧以闭合狭槽以形成流体路径。多个挡板构件，每个从板构件定位并穿过狭槽，并且部分地沿着开口的长度在一个开口内，在挡板两侧的每个开口内和相邻的两个侧面之间形成蛇形流体路径插槽内的开口。

50. 发明授权

US4621996A Removable die center for extrusion dies 失效
标题翻译：挤出模具可移动模具中心
公开(公告)号：US4621996A
公开(公告)日：1986-11-11
申请号：US727242
申请日：1985-04-24
申请人： Raymond E. Hundley, III
发明人： Raymond E. Hundley, III
IPC分类号： B29B9/06 , B29C47/30 , B29C47/86
CPC分类号： B29B9/065 , B29C2793/0027 , B29C47/0014 , B29C47/0066 , B29C47/30 , B29C47/862 , Y10S425/013
摘要： An extrusion die plate for a plastic pelletizing machine having a removable central insert having the plurality of extrusion orifices incorporated therein with the main body of the die plate including an opening receiving the insert with the insert being capable of quick and easy removable for cleaning of plastic material and for replacement of the insert with other inserts having a different number of extrusion orifices or a different size of extrusion orifices. The insert is screw threadedly connected or otherwise quickly detachably connected in an opening in the main body of the die plate to reduce the down time for maintenance and for product changes.
摘要翻译：一种用于塑料造粒机的挤出模板，其具有可移除的中心插入物，其具有并入其中的多个挤出孔，模板的主体包括容纳插入件的插入件的开口，该插入件能够快速且容易地移除以清洁塑料并且用于用具有不同数量的挤出孔或不同尺寸的挤出孔的其它插入件来替换插入件。插入件螺纹连接或以其他方式快速可拆卸地连接在模板主体的开口中，以减少维护和产品变化的停机时间。

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