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    • 6. 发明申请
    • MEMBRANE AND USE THEREOF
    • 膜及其用途
    • WO2004050222A1
    • 2004-06-17
    • PCT/EP2003/050730
    • 2003-10-17
    • GAMBRO LUNDIA ABKRAUSE, BerndWESSLING, MattiasGÖHL, HermannSTORR, Markus
    • KRAUSE, BerndWESSLING, MattiasGÖHL, HermannSTORR, Markus
    • B01D67/00
    • B01D67/002B01D67/0083B01D69/02B01D71/68B01D71/80B01D2325/36B29C44/3403
    • The membrane producible by shaping a polymer blend or a block copolymer comprising blocks of monomer units, loading the polymer blend or block copolymer with a blowing gas concentration within the polymer blend or block polymer above a critical concentration at a temperature below a critical temperature, but above the glass transition temperature of the polymer blend/gas or block copolymer/gas mixture and finally stabilizing the foam structure is characterized in that as polymer blend a homogeneous polymer blend comprising at least one hydrophilic and at least one hydrophobic polymer and/or a block copolymer of alternating blocks of hydrophilic and hydrophobic monomer units is used, both the polymer blend and the block copolymer having a solubility relating to the used foaming gas above the critical concentration. The said membrane is used for medical purposes, especially for the haemodialysis, haemofiltration, haemodiafiltration, plasmapherese, immunotherapy, micro- or ultrafiltration or gas separation.
    • 该膜可以通过将包含单体单元的嵌段的聚合物共混物或嵌段共聚物成型,将聚合物共混物或嵌段共聚物以高于临界温度的临界浓度的聚合物共混物或嵌段聚合物内的吹入气体浓度加载, 高于聚合物共混物/气体或嵌段共聚物/气体混合物的玻璃化转变温度,并且最终稳定泡沫结构的特征在于,作为聚合物共混物,包含至少一种亲水和至少一种疏水性聚合物和/或嵌段的均匀聚合物共混物 使用亲水和疏水单体单元的交替嵌段的共聚物,聚合物共混物和嵌段共聚物具有高于临界浓度的所用发泡气体的溶解度。 所述膜用于医疗目的,特别用于血液透析,血液透析,血液透析,血浆置换,免疫治疗,微量或超滤或气体分离。
    • 8. 发明申请
    • METHOD AND APPARATUS FOR THE PRODUCTION OF SKINLESS FLEXIBLE POLYURETHANE FOAM
    • 用于生产无纺布柔性聚氨酯泡沫的方法和装置
    • WO2000047384A2
    • 2000-08-17
    • PCT/EP2000000949
    • 2000-02-07
    • CANNON S.P.A.FIORENTINI, CarloSPINELLI, Paolo
    • CANNON S.P.A.
    • B29C
    • B29C44/28B29C44/3403
    • A method and apparatus for the continuous production of skinless or low skin flexible polyurethane foam (2). To reduce the thickness of the solidified skin on the surface of the polyurethane foam (2), the foaming occurs in a closed space (11). The environmental conditions during foaming are controlled by maintaining a gas-saturated atmosphere inside the closed space (11) using a gas or a mixture of gases different from ambient air. The closed space (11) is closed by a cover (12) which extend between the side-walls (9), from the mixture feeding point (16) and over a conveying path (4, 5). The reduction of the skin allows a greater percentage of polyurethane mixture to be usefully transformed into an expanded foam (2).
    • 用于连续生产无皮或低柔软聚氨酯泡沫的方法和设备(2)。 为了减少聚氨酯泡沫(2)表面上的凝固皮肤的厚度,发泡发生在封闭空间(11)中。 通过使用不同于环境空气的气体或气体的混合物,在封闭空间(11)内保持气体饱和的气氛来控制发泡期间的环境条件。 封闭空间(11)由在混合物供给点(16)和输送路径(4,5)之间在侧壁(9)之间延伸的盖(12)封闭。 皮肤的减少允许更大百分比的聚氨酯混合物有效地转化成膨胀泡沫(2)。
    • 9. 发明申请
    • VACUUM EXTRUSION SYSTEM AND METHOD
    • 真空挤出系统和方法
    • WO1998006554A2
    • 1998-02-19
    • PCT/US1997014055
    • 1997-08-11
    • UC INDUSTRIES, INC.
    • UC INDUSTRIES, INC.LIGHTLE, Rodger, D.SADINSKI, Robert, L.LINCOLN, Robert, M.
    • B29C44/34
    • B29C44/3407B01J3/006B01J3/03B29C44/3403B29C47/0009B29C47/34B29C47/884B29C47/8895B29C47/90B29C47/905B29C47/92B29C2947/92104B29C2947/92428B29C2947/92476B29C2947/926B29C2947/92923B29C2947/92971
    • A horizontal vacuum extrusion line includes a fixed bulkhead (23), a die (24) inside the bulkhead, a telescoping vacuum chamber section (27) and a fixed chamber section (28, 29). A dam (33) in the fixed section forms a pond (72) for immersion cooling of the extrudate. A truss (35) extends from the dam to the bulkhead supporting, shaping and calibration equipment and extends through the telescoping section. Fluid pressurizable seals at each end of the telescoping section are operable after the telescoping section is closed against the bulkhead and the telescoping and fixed sections are locked together. The telescoping section provides a more compact line and easier access to the complex equipment downstream of the die. The extrudate from the die passes down into the pond (72) and then through an orifice (74) in a hood (75) projecting from the chamber into a lower level portion of the pond (78) exposed to atmosphere. The hood also includes a tractor drive (88) to push the extrudate through the underwater orifice. The hood and its contents are accessible through the atmospheric pond. A tractor haul-off and the tractor drive in the hood are the only extrudate drives between the calibration equipment and atmosphere. The higher level of the pond (72) within the chamber downstream of the dam is controlled by a valve in turn controlling the output of a pump. The valve control senses the pond level and operates independently of the vacuum controls.
    • 卧式真空挤压生产线包括固定隔板(23),隔板内部的模具(24),伸缩式真空室部分(27)和固定室部分(28,29)。 固定部分中的坝(33)形成用于浸渍冷却挤出物的池(72)。 桁架(35)从大坝延伸到隔板支撑,成型和校准设备并延伸穿过伸缩部分。 伸缩部分的每端处的流体可加压密封件在伸缩部分相对于舱壁关闭并且伸缩和固定部分被锁定在一起之后是可操作的。 伸缩部分提供更紧凑的生产线,更容易进入模具下游的复杂设备。 来自模具的挤出物向下流入池塘(72),然后穿过从室中突出到敞开大气的池塘(78)的下部分的罩(75)中的孔口(74)。 发动机罩还包括一个拖拉机驱动装置(88),用于推动挤出物通过水下孔口。 罩及其内容物可通过大气池进入。 拖拉机牵引车和牵引车的驱动器是校准设备和大气之间唯一的挤出机。 在坝下游的室内的池塘(72)的较高水平由阀门控制,从而控制泵的输出。 阀门控制检测池水位,独立于真空控制器运行。
    • 10. 发明申请
    • METHOD AND APPARATUS FOR FORMING ARTICLES MADE OF POLYURETHANE
    • 制备聚氨酯制品的方法和装置
    • WO1993014137A1
    • 1993-07-22
    • PCT/US1993000040
    • 1993-01-05
    • CARSON, Scott
    • C08G18/00
    • B29C44/588B29C44/3402B29C44/3403B29C44/60C08G18/08
    • A method and apparatus for forming articles made of polyurethane. The apparatus (10) includes a polyol weigh tank (12), an isocyanate weigh tank (20), an additive tank (26) and a mix tank (16) enclosed by a vent chamber (50). The vent chamber (50) is in communication with inlet (58) and outlet (60) pipes to move air and fumes from the interior of the vent chamber (50) past a filter (64). The apparatus (10) further includes a containment vessel (80) also having inlet (88) and outlet (90) pipes for movement of air and fumes. The containment vessel (80) is in communication with a pump (P) for creating a vacuum in the vessel (80) to reduce pressure in the interior of the vessel (80) in which a mold (110) is placed. The method includes the steps of: creating a vacuum around a mixture of at least one polyol, at least one isocyanate and at least one additive, to lower the pressure on the mixture below atmospheric pressure as the mixture expands; allowing the mixture to expand; reducing the vacuum to increase the pressure on the mixture in proportion to any further expansion of the mixture caused by the generation of a blowing influence in the mixture; and returning the pressure to atmospheric pressure.