发明授权
- 专利标题： Process for producing self-extinguishing cables with low-level production of fumes, and flame-retardant compositions used therein
- 专利标题（中）： 用于生产低水平烟雾的自熄电缆的制造方法以及其中使用的阻燃组合物
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申请号： US09868997申请日： 1999-12-20
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公开(公告)号： US06849217B1公开(公告)日： 2005-02-01
- 发明人: Franco Peruzzotti , Diego Tirelli , Paolo Liboi , Enrico Albizzati
- 申请人： Franco Peruzzotti , Diego Tirelli , Paolo Liboi , Enrico Albizzati
- 申请人地址： IT Milan
- 专利权人： Pirelli Cavi e Sistemi S.p.A.
- 当前专利权人： Pirelli Cavi e Sistemi S.p.A.
- 当前专利权人地址： IT Milan
- 代理机构： Finnegan, Henderson, Farabow, Garrett & Dunner, L.L.P.
- 优先权： EP98124648 19981224
- 国际申请： PCTEP99/10131 WO 19991220
- 国际公布： WO0039810 WO 20000706
- 主分类号： C09K21/02
- IPC分类号： C09K21/02 ; H01B7/295 ; B29C47/00
摘要：
Process for producing cables, in particular electrical cables for low-voltage power transmission or for telecommunications, which have self-extinguishing properties and produce a low level of fumes, in which the flame-retardant coating layer is obtained by extruding a flame-retardant composition comprising a polymer base, an inorganic flame-retardant filler and a dehydrating agent. The presence of the dehydrating agent makes it possible to obtain a smooth and uniform flame-retardant layer which is virtually free of pores.
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