公开(公告)号：US4241132A

公开(公告)日：1980-12-23

申请号：US934691

申请日：1978-08-17

申请人： Ralph C. Pratt ,  Robert Davis ,  Charles P. Howland

发明人： Ralph C. Pratt ,  Robert Davis ,  Charles P. Howland

IPC分类号： B32B5/26 ,  H05K1/02 ,  H05K1/03 ,  B32B15/00

CPC分类号： H05K1/0366 ,  B32B5/26 ,  H05K1/024 ,  H05K1/0373 ,  H05K2201/015 ,  H05K2201/0158 ,  H05K2201/0209 ,  H05K2201/0212 ,  H05K2201/0278 ,  Y10S428/901 ,  Y10T442/654 ,  Y10T442/656

摘要： An insulating board has a polymeric reinforcement layer of fibrous material with a predetermined dielectric constant. A polymer is impregnated into said reinforcement layer and has a dielectric constant which is close to that of the dielectric constant of said fibrous material and the insulating board exhibits isotropic properties. A preselected desired dielectric constant or loss tangent can be built into the board by selection of fillers to preselect the dielectric constant or loss tangent without detracting from desired mechanical properties of the board.

摘要翻译： 绝缘板具有具有预定介电常数的纤维材料的聚合物加强层。 聚合物浸渍到所述加强层中并且具有接近所述纤维材料的介电常数的介电常数，并且绝缘板具有各向同性。 可以通过选择填料来预先选择所需的介电常数或损耗角正切，以预选介电常数或损耗角正切，而不会降低板的期望的机械性能。