Abstract: A very low density material is produced by extruding a composition comprising a settable fluid containing long resilient fibres through a narrow die under conditions which cause the extrudate to expand to form an open fibrous structure as it leaves the die, and then causing the fluid to set. This is applicable to both thermoplastic and thermosetting materials. Various coating layers may be applied to provide rigid light-weight panels and shaped articles for various uses including furniture and building applications.

Abstract: A high pressure, high voltage entrance bushing member using taper-sealing between an insulating plastic plug and a metal barrel. Spring loading, as by means of a spring lock washer, is used to urge the taper connections into precompression for proper high pressure fluid-tight seal. Dimensional changes due to temperature variations are accommodated by the taper connections. The high pressure bushing member is used in conjunction with a high temperature, high voltage bushing member, being connected by a conductor extending axially through a high pressure conduit containing a dielectric liquid. The overall entrance bushing assembly is employed in a system for electrically resolving emulsions. In such systems, the dielectric liquid is maintained at the same pressure as the emulsion being treated by means of a dynamic fluid barrier which prevents the intermingling of these liquids.