公开(公告)号：US4454248A

公开(公告)日：1984-06-12

申请号：US427457

申请日：1982-09-29

Applicant: Marlan R. Pollock ,  Marlyn F. Harp

Inventor： Marlan R. Pollock ,  Marlyn F. Harp

IPC: B29C44/56 ,  C08J9/40 ,  B29D27/00

CPC classification number: C08J9/40 ,  B29C44/08 ,  B29C44/10 ,  B29C44/5618 ,  B29C44/5636 ,  B29K2075/00 ,  B29K2101/10 ,  B29K2105/045 ,  B29K2105/16 ,  B29K2105/255 ,  C08J2201/038 ,  C08J2205/04 ,  C08J2300/24

Abstract: A rigid porous, deformation resisting, nonresilient inflexible thermoset resin foam having macroscopic open cells and the method of making the same. The method comprises foaming and partially curing a polyepoxide or polyurethane resin in which the cells are closed. The partially cured resin is softened by heating and then crushed to compress the cells to produce an open-celled product. The crushed foam is reexpanded and finally cured. The foam may be filled for strengthening with a filler such as carbon black before or after the final cure.

Abstract translation: 具有宏观开放电池的刚性多孔，抗变形，非弹性非刚性热固性树脂泡沫及其制造方法。 该方法包括发泡和部分固化细胞封闭的聚环氧化物或聚氨酯树脂。 部分固化的树脂通过加热软化，然后压碎以压缩细胞以产生开孔产品。 将破碎的泡沫再膨胀并最终固化。 在最终固化之前或之后，泡沫可以用填料如炭黑填充以加强。