Wire and cable insulation
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United States of America Patent
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N/A
Issued Date -
Apr 29, 2004
app pub date -
Aug 29, 2003
filing date -
Mar 14, 2001
priority date (Note) -
Abandoned
status (Latency Note)
Importance
Abstract
Wire or cable insulation comprising at least 30%, preferably at least 40%, of polypropylene homo- and/or co-polymer, and comprising at least 2%, preferably at least 4% zinc sulphide and/or at least 5%, preferably at least 10%, zinc oxide, percentages being by weight based on the whole insulation composition. preferably, the insulation contains little or substantially zero hydrated flame-retardant fillers and substantially zero mercaptobenzimidazole, and a majority by weight or substantially all of any propylene copolymers present are copolymers of propylene with halogen-free co-monomers.
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