THERMOPLASTIC ELASTOMERIC FOAM MATERIALS AND METHODS OF FORMING THE SAME
    5.
    发明申请
    THERMOPLASTIC ELASTOMERIC FOAM MATERIALS AND METHODS OF FORMING THE SAME 审中-公开
    热塑性弹性体泡沫材料及其形成方法

    公开(公告)号:WO2004018551A3

    公开(公告)日:2004-06-03

    申请号:PCT/US0326361

    申请日:2003-08-22

    申请人: TREXEL INC

    IPC分类号: C08J9/12 C08J9/00

    摘要: Foams with low water absorption are provided, along with thermoplastic elastomeric foam materials and methods of forming the same. In some embodiments, the TPE foams have a low water absorption. Microcellular foams are included. Processing conditions (e.g., blowing agent type and content, die geometry, exit melt temperature, among others) may be controlled to produce foams having desirable characteristics, such as low water absorption.

    摘要翻译: 提供具有低吸水性的泡沫以及热塑弹性体泡沫材料及其形成方法。 在一些实施方案中,TPE泡沫具有低吸水性。 包括微孔泡沫。 可以控制加工条件(例如,发泡剂类型和含量,模头几何形状,出口熔体温度等)以产生具有期望特性的泡沫,例如低吸水性。

    METHODS FOR MANUFACTURING FOAM MATERIAL INCLUDING SYSTEMS WITH PRESSURE RESTRICTION ELEMENT
    6.
    发明申请
    METHODS FOR MANUFACTURING FOAM MATERIAL INCLUDING SYSTEMS WITH PRESSURE RESTRICTION ELEMENT 审中-公开
    用于制造泡沫材料的方法,包括具有压力限制元件的系统

    公开(公告)号:WO0059702A9

    公开(公告)日:2002-04-04

    申请号:PCT/US0008449

    申请日:2000-03-30

    申请人: TREXEL INC

    发明人: XU JINGYI

    摘要: The invention provides systems, methods, and articles useful in the production of foams, and, in particular microcellular foams. The systems include a restriction element (35) that reduces the backflow of polymer melt in an extruder while polymeric material is injected into a mold (37) or ejected from a die. The restriction element is positioned upstream of a blowing agent injection port (54) to maintain the solution of polymer and blowing agent in the extruder above a minimum pressure throughout an injection or ejection cycle, and preferably above the critical pressure required for the maintenance of a single-phase solution of polymer and blowing agent. The systems can be used in injection molding, blow molding, or in any other processing techniques that include injection or ejection cycles. In some embodiments, the systems utilize reciprocating screws for injection or ejection. In other embodiments, the systems include an accumulator connected to an outlet of the extruder, in which a plunger moves to inject polymeric material into a mold or eject polymeric material from a die.

    摘要翻译: 本发明提供了用于生产泡沫,特别是微孔泡沫的系统,方法和制品。 这些系统包括限制元件(35),其限制元件(35),其减少聚合物熔体在挤出机中的回流,同时将聚合物材料注入到模具(37)中或从模具中排出。 限制元件位于发泡剂注入口(54)的上游,以将聚合物和发泡剂在挤出机中的溶液保持在整个喷射或喷射循环中的最小压力之上,并且优选高于用于维持 聚合物和发泡剂的单相溶液。 该系统可用于注射成型,吹塑成型或包括注射或喷射循环的任何其它加工技术。 在一些实施例中,系统利用用于注射或排出的往复式螺钉。 在其它实施例中,系统包括连接到挤出机的出口的蓄能器,其中柱塞移动以将聚合物材料注入模具或从模具中排出聚合材料。

    DEVICE FOR SHAPING PLASTIC OBJECTS UNDER INERT ATMOSPHERE
    7.
    发明申请
    DEVICE FOR SHAPING PLASTIC OBJECTS UNDER INERT ATMOSPHERE 审中-公开
    用于形成大气中的塑料物体的装置

    公开(公告)号:WO02022342A1

    公开(公告)日:2002-03-21

    申请号:PCT/FR2001/002798

    申请日:2001-09-10

    IPC分类号: B29C45/17 B29C45/18 B29C47/10

    摘要: The invention concerns a device for producing plastic objects by shaping under inert atmosphere, comprising a hopper (1), an endless screw and means for shaping melted polymer. The device for injecting inert gas comprises a gas supply conduit (3), a gas injection surface at the hopper (1) wall and a homogenising chamber co-operating between the hopper (1) wall and the gas supply conduit (3). The end (32) of the gas supply conduit (3) oriented towards the injection surface is closed and has at least a radial orifice (33) for ejecting gas perpendicularly to its flow direction in the conduit.

    摘要翻译: 本发明涉及一种通过在惰性气氛下成形来生产塑料物体的装置,包括料斗(1),环形螺杆和用于成形熔融聚合物的装置。 用于注入惰性气体的装置包括气体供应管道(3),在料斗(1)壁处的气体注入表面和在料斗(1)壁和气体供应管道(3)之间配合的均质室。 朝向注射表面定向的气体供应管道(3)的端部(32)是封闭的,并且具有用于在管道中垂直于其流动方向喷射气体的至少一个径向孔口(33)。

    PSYCHROMETRIC APPARATUS AND METHOD FOR CONTINUOUS AIR REPLACEMENT/DEGASSING OF CONTINUOUS MULTILAYERED FIBERS WITH A CONDENSABLE GAS
    8.
    发明申请
    PSYCHROMETRIC APPARATUS AND METHOD FOR CONTINUOUS AIR REPLACEMENT/DEGASSING OF CONTINUOUS MULTILAYERED FIBERS WITH A CONDENSABLE GAS 审中-公开
    连续多层混合气体连续空气替换/降解的光学设备和方法

    公开(公告)号:WO99064174A1

    公开(公告)日:1999-12-16

    申请号:PCT/US1999/012576

    申请日:1999-06-04

    摘要: The present invention discloses a generic method for producing void and gas occlusion free materials, as well as apparatuses (30) for batch and continuous production of same. This generic method can be utilized in the production of a wide variety of polymeric compounds and composites and specifically encompasses the two ends of the polymeric spectrum, that is, polymer concretes on the one hand, and fiber-reinforced polymer composites on the other. The composite materials of the present invention are characterized by visual count as being void and gas occlusion free to the level of 1 micron at 1250x magnification. Concomitantly, the invention produces useful polymer concrete materials which exhibit substantially improved integrity for easy machining at high speeds and high dielectric and mechanical strength, as compared with composite materials produced by conventional methods. Thus, one particular application for the materials of the present invention is the class of high voltage electrical insulating materials and insulators (80) where presence of voids, or gas occlusion flaws, may have deleterious effects, leading to their early failure.

    摘要翻译: 本发明公开了一种生产空隙和不吸气材料的通用方法,以及用于批量连续生产的装置(30)。 这种通用方法可用于生产各种各样的聚合物和复合材料,并且具体包括聚合物光谱的两端,即一方面是聚合物混凝土,另一方面是纤维增强聚合物复合材料。 本发明的复合材料的特征在于视觉计数为空白和气体闭塞在1250x放大率下自由水平为1微米。 伴随地,与通过常规方法生产的复合材料相比,本发明生产出有用的聚合物混凝土材料,其显示出显着提高的完整性,便于高速和高介电和机械强度的机械加工。 因此,用于本发明的材料的一个特定应用是高压电绝缘材料和绝缘体(80)的类别,其中空隙或气体闭塞缺陷的存在可能具有有害影响,导致其早期故障。