Flame-retardant, water-resistant composition and coating...

Details Flame-retardant, water-resistant composition and coating... Flame-retardant, water-resistant composition and coating...

H - Electricity

01

B

117/32, 337/75

H01B 13/18 (2006.01) H01B 3/44 (2006.01) H01B 11/02 (2006.01) H01B 13/22 (2006.01)

Patent

CA 1038243

ABSTRACT A telephone service cable which runs from a dis- tribution cable to a subscriber's premises or to a pay station is another link in a buried communications system having a water-resisting capability. A spirally quaded core comprised of individually insulated conductors is advanced through a bath of a flame-retardant, water-resistant composition prior to enclosing the core with a jacket. The interstices in the core and between the core and an inner jacket are caused to be filled with the composition which comprises a liquid system and a solid system. The liquid system includes a chlorinated paraffin while the solid system includes a polyvinyl chloride resin and a chlorinated polyethylene. An epoxy stabilizer and a phosphite stabiliser may be added to prevent thermal degradation of the filling composition.

204077

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