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公开(公告)号:US5698323A
公开(公告)日:1997-12-16
申请号:US623413
申请日:1996-03-28
CPC分类号: H01B7/295 , Y10S428/92 , Y10S428/921 , Y10T428/2927 , Y10T428/2933 , Y10T428/2938 , Y10T428/294
摘要: A cable comprising one or more electrical conductors or communications media, or a core of two or more electrical conductors or communications media, each electrical conductor, communications medium, or core being surrounded by a composition, which is essentially halogen and antimony free, comprising: (a) a copolymer of ethylene and an unsaturated ester comonomer selected from the group consisting of: (i) an alkyl acrylate; (ii) an alkyl methacrylate; and (iii) a vinyl carboxylate wherein (A) the alkyl group has 1 to 8 carbon atoms and the carboxylate group has 2 to 8 carbon atoms; (B) the copolymer is, optionally, modified with an anhydride of an unsaturated aliphatic diacid having 4 to 20 carbon atoms; (C) the copolymer has an ester content in the range of about 5 to about 50 percent based on the weight of the copolymer and a melt index in the range of about 0.5 to about 50 grams per 10 minutes; and, for each 100 parts by weight of component (a), (b) about 50 to about 300 parts by weight of magnesium hydroxide, coated or uncoated, or alumina trihydrate: (c) about 1 to about 25 parts by weight of zinc oxide; and (d) about 1 to about 15 parts by weight of red phosphorus, wherein the ratio of zinc oxide to red phosphorus is in the range of about 0.5 to about 5 parts by weight of zinc oxide per part by weight of red phosphorus.
摘要翻译: 一种电缆,包括一个或多个电导体或通信介质,或两个或多个电导体或通信介质的核心,每个电导体,通信介质或核心被组成物包围,该组合物基本上是无卤素和无锑的,包括: (a)乙烯和不饱和酯共聚单体的共聚物,其选自:(i)丙烯酸烷基酯; (ii)甲基丙烯酸烷基酯; 和(iii)羧酸乙烯酯,其中(A)烷基具有1至8个碳原子,羧酸酯基具有2至8个碳原子; (B)共聚物任选用具有4至20个碳原子的不饱和脂族二酸的酸酐改性; (C)基于共聚物的重量,共聚物的酯含量为约5至约50%,熔体指数为约0.5至约50克/ 10分钟; 对于每100重量份的组分(a),(b)约50至约300重量份的氢氧化镁,涂覆或未涂覆的或三水合氧化铝:(c)约1至约25重量份的锌 氧化物 和(d)约1至约15重量份的红磷,其中氧化锌与红磷的比例在每重量份红磷约0.5至约5重量份氧化锌的范围内。