公开(公告)号：US4474845A

公开(公告)日：1984-10-02

申请号：US412034

申请日：1982-08-26

申请人： Edward M. Hagerman ,  Harry A. Mitchell

发明人： Edward M. Hagerman ,  Harry A. Mitchell

IPC分类号： B29C57/00 ,  B29B11/00 ,  B29B11/16 ,  B29C70/06 ,  B29C70/50 ,  B29C70/58 ,  B29K105/12 ,  C08J5/04 ,  B32B5/16

CPC分类号： B29C70/508 ,  Y10S428/902 ,  Y10T428/24994 ,  Y10T428/25 ,  Y10T428/252 ,  Y10T428/2982 ,  Y10T428/2996 ,  Y10T428/2998 ,  Y10T428/30

摘要： A method is provided for compacting viscous polymeric molding compositions preparatory to compression molding to substantially improve the physical properties of articles molded therefrom. Suitable compositions include those filled with a geometric reinforcing particulate filler that are flowable and thermosettable when compression molded. The method comprises forming a slab of a said filler composition and thereafter reducing its thickness by passing it between spaced-apart pairs of compression means. The pair members of the means are spaced apart to ultimately substantially reduce its thickness. The method yields unexpected improvements in the tensile strength, isotropy and surface characteristics of articles compression molded from the compounds.

摘要翻译： 提供了一种用于压实制备压缩模制的粘性聚合物模塑组合物以显着改善由其模制的制品的物理性质的方法。 合适的组合物包括填充有几何增强颗粒填料的填料，其在压塑时是可流动的和可热固化的。 该方法包括形成所述填料组合物的板坯，然后通过在间隔开的压缩装置对之间使其厚度减小。 装置的成对构件间隔开以最终实质上减小其厚度。 该方法在由化合物压缩成型的制品的拉伸强度，各向同性和表面特性方面产生了意想不到的改进。