Abstract: A heat recoverable article for shielding junctions in cables or conduits comprising a corrugated sheath in part capable of radial deformation disposed within a member of heat-recoverable material part of the sheath having transverse corrugations that resist deformation. A sheath made of conductive material may function to protect the junction from radio frequency interference. The ends of the member may be provided with adhesive to render the junction impermeable to water, gases, etc.

Abstract: Described herein are connectors for terminating screened multiconductor cables. The connectors comprise a longitudinally slotted tubular grounding member having resilient tines between which are positioned individual leads or screens of the multiconductor cable. Fastening means are provided around the tines which, upon tightening, cause the slotted portion of the tubular grounding member to contract so that the leads or screens are firmly gripped. The fastening means preferably comprises a heat-shrinkable metal band or ring of a memory metal and is advantageously further provided with a collet, band or ring positioned internally of said heat-shrinkable member. Also described are methods of utilizing said connector in the termination of multiconductor cables.

Abstract: A novel composition is disclosed which contains a silicone polymer, a non-silicone polymer other than polytetrafluoroethylene and a chemically treated filler. The non-silicone polymer may be an elastomer or a thermoplastic such as a polyolefin, a copolymer containing an olefin, a halogen-containing polymer or copolymer or a copolymer of fluorine-containing polymers other than polytetrafluoroethylene. The filler is an inorganic silicon-containing compound having a surface area of at least 40 square meters per gram which has been treated with a substituted silane. The treated filler is first blended with the non-silicone polymer and this compound is then mixed with the silicone polymer.

Abstract: A polymer composition containing silicon carbide of a critical maximum average particle size can be processed into heat-shrinkable articles possessing nonlinear electrical resistance characteristics. An embodiment of the invention provides a heat-shrinkable article comprising a laminate of a layer of elastomer, including silicon carbide particles, and a layer of a heat-shrinkable polymeric material. The elastomeric layer may be a blend of a rubbery polymer and a low density polyethylene having dispersed therein particulate silicon carbide of particle size finer than about 300 grit.

Abstract: A heat recoverable article for shielding junctions in cables or conduits comprised of a corrugated sheath capable of radial deformation disposed within a member of heat-recoverable material. A sheath made of conductive material may function to protect the junction from radio frequency interference. The end of the member may be provided with adhesive to render the junction impermeable to water, gases, etc.