Comm/scope Company

Other

Commscope, Inc.

Chakra V Gupta

Brian D Garrett

A method for introducing relatively large quantities of liquid additives into polymer-containing composition includes increasing the free volume between polymer chains of the polymer(s) present in the composition and introducing at least one liquid additive into the free volume between the polymer chains. The method can optionally include the introduction of low melting additives into the polymer This method allows for the production of polymer masterbatchs from a wide variety of liquid additives that can contain upwards of 50% by weight active components. Such masterbatches can be a particularly useful technique for introducing biocides and/or antimicrobials into polymeric materials.

Method of making masterbatches of liquid additives and, in particular, antimicrobial masterbatches

Perfluoroalkanes, including perfluorobutane, perfluoro propane and perfluoropentane are used in aerosol spray compositions contained within aerosol spray containers to act as propellants. Further, perfluoroalkanes are combined with sulphur hexafluoride for use as aerosol propellants. Specific examples, including insecticide formulations, are particularly set forth.

Perfluoroalkanes and perfluoroalkane and sulphur hexafluoride

A cable and method for making such cable is disclosed. The cable is especially suited for high frequency applications in which electrical attenuation and dissipation factor are of critical importance. The cable comprises a tubular outer conductor, and at least one inner conductor for transmission of electrical signals. Between the inner and outer conductor is a foamed dielectric material. This dielectric is formed from the extrusion of an olefin polymer or a fluoropolymer with a blowing agent gas. Sulfurhexafluoride (SF.sub.6), rather than environmentally unsafe chlorofluorocarbons, is used as a blowing agent to foam the dielectric.

High frequency signal cable with improved electrical dissipation factor

A corrosion-resistant electric cable has a metallic conductor, a polymeric insulating jacket surrounding the metallic conductor, and a corrosion-inhibiting powder comprised of a hydrophobic material disposed between the metallic conductor and the insulating jacket. The corrosion-inhibiting powder may be comprised of a mixture of a hydrophobic fumed silica powder and a hydrophobic polyethylene powder.

Jacketed cable with powder layer for enhanced corrosion and

The cable shielding tape of this invention comprises a metal foil layer and a polymer supporting layer fusibly bonded directly to the aluminum foil layer and serving to structurally reinforce the foil layer. The polymer supporting layer comprises a polymer blend of a polyolefin component and an elastomeric component.

Electrical cable with improved metallic shielding tape

An improved cable having a metallic inner conductor, a dielectric material surrounding the inner conductor and a metallic outer conductor or sheath comprises corrosion inhibiting adhesive disposed at the interface between at least one of the metallic conductors and the dielectric. The adhesive composition comprises a polyfunctional silane compound reacted with the metallic surface of the conductor and providing corrosion resistance thereto while also promoting bonding between the conductor and the dielectric.

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Conover, NC, United States of America

Chakra V Gupta