公开(公告)号：US3994895A

公开(公告)日：1976-11-30

申请号：US516291

申请日：1974-10-21

申请人： Bernard Wasserman ,  Frederick A. Emerson, Jr. ,  William H. Thielbahr

发明人： Bernard Wasserman ,  Frederick A. Emerson, Jr. ,  William H. Thielbahr

IPC分类号： C10M169/00 ,  C10M7/28

CPC分类号： C10M7/00 ,  C10M2201/041 ,  C10M2205/00 ,  C10M2205/06 ,  C10M2211/06 ,  C10M2213/02 ,  C10M2213/062 ,  C10N2250/08 ,  C10N2250/10

摘要： Compositions consisting essentially of about 1 weight percent carbon black,rom about 20 to about 35 weight percent polytetrafluoroethylene and from about 79 to about 64 weight percent of a material selected from the group consisting of isobutylene-isoprene copolymer and ethylene-propylene rubber are disclosed as being useful as protective fillers in situations where the protective filler is subjected to high temperatures and pressures.

摘要翻译： 公开了基本上由约1重量％的炭黑，约20至约35重量％的聚四氟乙烯和约79至约64重量％的选自异丁烯 - 异戊二烯共聚物和乙烯 - 丙烯橡胶的材料组成的组合物 在保护性填料经受高温和高压的情况下可用作保护填料。

公开(公告)号：US4009231A

公开(公告)日：1977-02-22

申请号：US560077

申请日：1975-03-20

申请人： Bernard Wasserman ,  William H. Thielbahr

发明人： Bernard Wasserman ,  William H. Thielbahr

IPC分类号： C06B21/00 ,  C06B45/12

CPC分类号： C06B21/0083 ,  C06B45/12

摘要： A barrier layer made up of a suitable powder interspersed within either a trix of cured propellant binder or a matrix of silicone rubber is interposed between a silicone rubber insulator and a solid propellant grain in a rocket motor to prevent curatives from migrating from the propellant into the silicone rubber layer when the propellant is cast.

公开(公告)号：US3956453A

公开(公告)日：1976-05-11

申请号：US421307

申请日：1973-12-03

申请人： Leroy M. Stayton ,  William H. Thielbahr ,  James C. Connelly

发明人： Leroy M. Stayton ,  William H. Thielbahr ,  James C. Connelly

IPC分类号： B29C33/52 ,  B29C43/00 ,  B29C1/08 ,  B29D1/00 ,  B29G3/00

CPC分类号： B29C33/52 ,  B29C43/00

摘要： A method for molding one piece seamless contoured structures. The mold consists of a hollow, cylindrical mold member whose internal surface area defines the external surface of the piece to be molded, that is adaptive to receive a piston having a reservoir containing a fluid plastic and a mandrel mold member of low melting alloy whose shape defines the internal surface of the molded structure. The piston is forced upward to cause the fluid plastic to flow into the interstices and allowed to cure. Heat is applied to the mold assembly to melt the alloy to allow removal of the contoured structure when the mold assembly is disassembled.

摘要翻译： 一种成型无缝轮廓结构的方法。 模具由中空的圆柱形模具构件组成，其内表面区域限定待模​​制件的外表面，其适于接收活塞，该活塞具有容纳流体塑料的储存器和低熔点合金的心轴模具构件，其形状 限定了模制结构的内表面。 活塞被向上推动以使流体塑料流入空隙并允许固化。 将热量施加到模具组件以熔化合金，以允许在拆卸模具组件时移除轮廓结构。