METHOD FOR FORMING AN EXTRUSION-FOAMED PLASTIC LAYER AND AFTERTREATMENT DEVICE
    5.
    发明申请
    METHOD FOR FORMING AN EXTRUSION-FOAMED PLASTIC LAYER AND AFTERTREATMENT DEVICE 审中-公开
    形成挤出泡沫塑料层和后处理装置的方法

    公开(公告)号:US20160263789A1

    公开(公告)日:2016-09-15

    申请号:US15028979

    申请日:2014-10-07

    申请人: Frank VAN LÜCK

    发明人: Frank van Lück

    摘要: For forming an extrusion-foamed plastic layer, the plastic layer is first thermally treated in order to be at least particularly plastically deformable. Negative pressure is exerted on the plastic layer, pulling it apart in the direction of the thickness as a plastic deformation. The plastic layer is optionally pressed together to a desired thickness or introduced into a mold. The negative pressure leads to a greater cell size homogeneity. The thickness of the plastic layer smoothed. Further, a corresponding aftertreatment device is proposed. This includes a thermal treatment device or thermal treatment zone. At least one pair of opposing negative pressure surfaces follows in conveying direction. These pull apart the plastic layer. Optionally, the plastic layer is additionally cooled. Further, and the plastic layer may be further processed in a subsequent fabricating unit.

    摘要翻译: 为了形成挤出发泡塑料层,首先对塑料层进行热处理,以便至少具有塑性变形性。 负压施加在塑料层上,使其在厚度方向上分开塑性变形。 将塑料层任选地压在一起,达到所需厚度或引入模具中。 负压导致更大的电池尺寸均匀性。 塑料层的厚度平滑。 此外,提出了相应的后处理装置。 这包括热处理装置或热处理区。 至少一对相对的负压表面沿着输送方向。 这些拉开塑料层。 可选地,塑料层另外被冷却。 此外,塑料层可以在随后的制造单元中进一步处理。

    Process for the production of optically isotropic extrusion films
    9.
    发明授权
    Process for the production of optically isotropic extrusion films 失效
    用于生产光学等压挤出膜的方法

    公开(公告)号:US5076987A

    公开(公告)日:1991-12-31

    申请号:US504482

    申请日:1990-04-04

    摘要: A process for the production of optically isotropic extrusion films is disclosed. Accordingly in a first process step a thermoplsatic resin is extruded to form a film having a thickness below 600 .mu.m. The second process step entailsa) calendering said film between a ground elastic roller and a high gloss steel roller to produce a film having a high gloss surface and a matt surface, orb) calendering said film between a lacquered elastic roller and a high gloss steel roller to produce a film having high gloss on both surfaces, orc) calendering said film between a ground elastic roller and a high gloss steel roller to produce a film having a high gloss surface and a matt surface, and then coating said matt surface with a melt of said thermoplastic polymer and calendering the resulting coated film between a high gloss steel roller and a ground elastic roller, with the high gloss side of the coated film facing the roller of elastic material.

    摘要翻译: 公开了一种制备光学各向同性挤出膜的方法。 因此,在第一工艺步骤中,将热塑性树脂挤出以形成厚度低于600μm的膜。 第二工艺步骤需要a)在接地弹性辊和高光泽钢辊之间压延所述膜以产生具有高光泽表面和无光泽表面的膜,或b)在漆层弹性辊和高光泽度之间压延所述膜 钢辊,以在两个表面上产生具有高光泽度的膜,或c)在接地弹性辊和高光泽钢辊之间压延所述膜以产生具有高光泽表面和无光泽表面的膜,然后涂覆所述亚光表面 用所述热塑性聚合物的熔体将所得的涂膜压延在高光泽的钢辊和研磨的弹性辊之间,涂膜的高光泽面与弹性材料的辊相对。

    Process for producing a new class of ultra-high-molecular-weight
polyethylene orthopaedic prostheses with enhanced mechanical properties
    10.
    发明授权
    Process for producing a new class of ultra-high-molecular-weight polyethylene orthopaedic prostheses with enhanced mechanical properties 失效
    用于生产具有增强的机械性能的新型超高分子量聚乙烯矫形假体的方法

    公开(公告)号:US5030402A

    公开(公告)日:1991-07-09

    申请号:US325563

    申请日:1989-03-17

    摘要: A method for producing an UHMWPE product with enhanced planar mechanical properties. An initial UHMWPE semicrystalline morphology is solid-state deformed under compression in a mold including a mold cavity with an unenclosed perimeter zone or a perimeter zone with a reservoir enabling flow-through for molded UHMWPE. A polymer preform is oriented and extended in more than one direction in the mold cavity and the perimeter zone to an extent which is limited by the material properties of the polymer under the employed processing conditions. The oriented and extended UHMWPE is cooled under compression to ambient temperature for maintaining the maximum orientation and extension attained during the solid-state deformation process. The polymer product in the mold cavity is separated from the product in the perimeter zone of the mold cavity. The UHMWPE product has a markedly transformed morphology, as compared with the initial UHMWPE morphology. The product comprises oriented and extended molecular chains in more than one direction and exhibits markedly enhanced mechanical properties in more than one direction, the magnitude depending on the extent of deformation.

    摘要翻译: 一种具有增强的平面机械性能的UHMWPE产品的制造方法。 初始的UHMWPE半晶体形态在模具中是固态变形的,该模具包括具有未封闭周边区域的模具腔或具有能够使模制UHMWPE流通的储存器的周边区域。 聚合物预成型件在模腔和周边区域中的多于一个方向上被定向和延伸到受所使用的加工条件下聚合物的材料性质限制的程度。 定向和扩展的UHMWPE在压缩下冷却至环境温度,以保持在固态变形过程中获得的最大取向和延伸。 模腔中的聚合物产物在模具腔的周边区域与产品分离。 与初始UHMWPE形态相比,UHMWPE产品具有明显变形的形态。 该产品在多于一个方向上包含定向和延伸的分子链,并且在多于一个方向上显示出显着增强的机械性能,其大小取决于变形程度。