摘要:
A foaming composition comprising a melt processible fluoropolymer, and a chemical foaming agent, where the chemical foaming agent is ammonium polyphosphate.
摘要:
A communications cable having a jacket and a plurality of twisted pairs, each twisted pair having two insulated conductors twisted around one another, where on at least one twisted pair, the insulation on the conductors of the pair is a two layer insulation with a first inner layer of polyolefin and a second outer layer of imide polymer.
摘要:
A composite cable includes at least two optical fiber components and at least one additional component. An irradiated crosslinked jacket surrounds the optical fiber component and the at least one additional component. A shield encloses at least the two optical fiber components within the jacket, where the shield protects the optical fibers from irradiation of the crosslinked jacket.
摘要:
A fiber optic cable is provided with a plurality of buffer tubes each with one or more optical fibers, a plurality of strength members and a jacket. The fibers within the cable meet maximum attenuation of substantially 0.07 db increase when decreasing from −23° C. to −60° C.
摘要:
A fiber optic cable is provided with a plurality of buffer tubes each with one or more optical fibers, a plurality of strength members and a jacket. The fibers within the cable meet maximum attenuation of substantially 0.07 db increase when decreasing from −23° C. to −60° C.
摘要:
A spacer for use in a twisted pair of electrical conductors said spacer includes a polymer strip and a series of openings in said polymer strip. The polymer strip is configured to be placed between two adjacent conductors of a twisted pair. The polymer strip and said series of openings are constructed so that the series of openings are not substantially crushed during a twinning process of twisting the adjacent conductors of the twisted pair.
摘要:
A process for the production of a moulding composed of foamed polytetrafluoroethylene by means of an extruder, includes introducing a foaming agent, which brings about foaming, into the polytetrafluoro-ethylene, where the extruder used includes a commercially available extruder, to which a thermoplastically processable, fusible polytetrafluoroethylene is fed, the polytetrafluoroethylene is fed to the extruder together with a foaming agent which has chemical action and which has a decomposition temperature of at least 320° C., and after its discharge from the extruder, the moulding is drawn off in the direction of production without any further measures relating to the foaming procedure.
摘要:
A foaming composition includes a fluoropolymer, a nucleating agent and a pigment, wherein said pigment is a manganese-antimony-titanium (Mn—Sb—Ti) oxide pigment.
摘要:
A foaming composition comprising a melt processible fluoropolymer, and a chemical foaming agent, where the chemical foaming agent is ammonium polyphosphate.
摘要:
A communications cable having a jacket and a plurality of twisted pairs, each twisted pair having two insulated conductors twisted around one another, where on at least one twisted pair, the insulation on the conductors of the pair is a two layer insulation with a first inner layer of polyolefin and a second outer layer layer of imide polymer.