DIRECT FORMING OF NON-TEXTILE FABRIC ELEMENTS FROM THERMOPLASTIC PELLETS OR THE LIKE
    31.
    发明申请
    DIRECT FORMING OF NON-TEXTILE FABRIC ELEMENTS FROM THERMOPLASTIC PELLETS OR THE LIKE 审中-公开
    直接形成来自热塑片或类似物的非纺织织物元件

    公开(公告)号:WO0132404A3

    公开(公告)日:2002-01-24

    申请号:PCT/US0029948

    申请日:2000-10-26

    摘要: An inventive solid phase forming process, and related structure, using conventional pelletized thermoplastic compositions to form the elements of a non-textile fabric by coining a single pellet or briquette of the polymer into an individual element in a single forming step. The steps of the process generally include: a) positioning a pellet (78A) in or adjacent to a mold cavity, and b) forcing the pellet into contact with the mold surfaces of the mold cavity to plastically deform the pellet to cause the pellet to adapt the shape of the mold cavity (102, 104). The mold cavity has a shape to form the desired element, and its volume is substantially the same as the volume of the pellet (78A). The forcing step or act preferably uses an energy and speed wherein the pellet superplastically deforms to substantially fill the volume of the mold cavity. This process is repeated with the particular element being formed in the appropriate order to form interconnected plates (40) and rivets (42), as an example, with the final result being a non-textile fabric. The elements formed by the inventive process can have any of a variety of shapes, and can form base units for the formation of the non textile fabric of two, three or more elements. This inventive process elimininates the need to first form the pelletized polymer into a sheet or other type of preform prior to the forming of the final product.

    摘要翻译: 本发明的固相形成方法和相关结构使用常规的颗粒状热塑性组合物通过在单一成型步骤中将单个颗粒或聚合物团块压制成单独的元件来形成非纺织织物的元件。 该方法的步骤通常包括:a)将颗粒(78A)定位在模腔中或邻近模腔,以及b)迫使颗粒与模腔的模具表面接触以使颗粒塑性变形, 适应模腔(102,104)的形状。 模腔具有形成所需元件的形状,其体积基本上与颗粒(78A)的体积相同。 强制步骤或作用优选地使用能量和速度,其中颗粒超塑变形以基本上填充模腔的体积。 重复该过程,其中特定元件以适当的顺序形成,以形成互连的板(40)和铆钉(42),作为示例,最终结果是非纺织织物。 通过本发明方法形成的元件可以具有各种形状的任何形状,并且可以形成用于形成两个,三个或更多个元件的非纺织织物的基本单元。 本发明的方法消除了在形成最终产品之前首先将颗粒状聚合物形成片材或其它类型的预制件的需要。

    CURING OF A GEL COAT ON A MOLD
    32.
    发明申请
    CURING OF A GEL COAT ON A MOLD 审中-公开
    一个模具上的凝胶涂层

    公开(公告)号:WO02000409A2

    公开(公告)日:2002-01-03

    申请号:PCT/EP2001/007274

    申请日:2001-06-26

    摘要: Partially cured gel coats are prepared in a manner for subsequent application to a substrate, e.g. a reinforcing polymer matrix, by a process comprising the steps of :A. Applying a gel coat, e.g., an unsaturated polyester resin, to a nonporous mold, e.g., a polyester film, which is at least partially transparent to actinic radiation, e.g. UV light; andB. Exposing the surface of the gel coat that is in contact with the film, i.e., the bottom surface, to actinic radiation that has first passed through the mold. In certain embodiments of the invention, the surface of the gel coat opposite the bottom surface, i.e., the top surface, is exposed to actinic radiation shortly after the bottom surface is exposed to the actinic radiation to effect a bi-directional cure of the gel coat. The gel coat produced by the process of the invention is nonporous and essentially defect-free.

    摘要翻译: 部分固化的凝胶涂层以随后施用于底物的方式制备,例如, 增强聚合物基质,通过包括以下步骤的方法:A。 将诸如不饱和聚酯树脂之类的凝胶涂层施用于对光化辐射至少部分透明的无孔模具,例如聚酯膜,例如聚酯膜。 紫外光; 且B。 将与膜(即底面)接触的凝胶涂层的表面暴露于首先通过模具的光化辐射。 在本发明的某些实施方案中,与底表面相反的凝胶涂层的表面即顶表面在底表面暴露于光化辐射之后不久就暴露于光化辐射,以实现凝胶的双向固化 涂层。 通过本发明的方法生产的凝胶涂层是无孔的并且基本上是无缺陷的。