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    • 5. 发明授权
    • Telephone cables
    • 电话线
    • US5807635A
    • 1998-09-15
    • US787283
    • 1997-01-24
    • Jeffrey Morris CogenMichael John KeoghGeoffrey David Brown
    • Jeffrey Morris CogenMichael John KeoghGeoffrey David Brown
    • H01B3/44B32B15/00H01B7/00
    • H01B3/44Y10T428/2938Y10T428/294Y10T428/2947
    • A cable construction comprises the following components: (i) a plurality of insulated electrical conductors having interstices therebetween, said insulation comprising (a) one or more polyolefins selected from the group consisting of polyethylene, polypropylene, and mixtures thereof, and, blended therewith, (b) a mixture containing one or more alkylhydroxy-phenylalkanoyl hydrazines and one or two functionalized hindered amines; (ii) hydrocarbon cable filler grease within the interstices; and (iii) a sheath surrounding components (i) and (ii) wherein said hindered amines have the following structural formulae: ##STR1## wherein n is about 2 to about 12; R is CxHyOz wherein x is about 2 to about 6, y is about 4 to about 16, and z is zero to about 3; ##STR2## wherein m is about 2 to about 30; n is about 2 to about 30; and x is about 1 to about 30; or ##STR3## wherein n is about 2 to about 20.
    • 一种电缆结构包括以下部件:(i)多个具有间隙的绝缘电导体,所述绝缘体包含(a)一种或多种选自聚乙烯,聚丙烯及其混合物的聚烯烃,并与其混合, (b)含有一个或多个烷基羟基 - 苯基烷酰基肼和一个或两个官能化受阻胺的混合物; (ii)空隙内的碳氢化合物电缆填料润滑脂; 和(iii)围绕组分(i)和(ii)的鞘,其中所述受阻胺具有以下结构式:其中n为约2至约12; R为C x H y O z,其中x为约2至约6,y为约4至约16,z为0至约3; 式II其中m为约2至约30; n为约2至约30; x为约1至约30; 或其中n为约2至约20的式III。