| 摘要 |
<p>A cable construction adapted for underground use comprises: (a) insulated electrical conductors having interstices therebetween, the insulation comprising: (1) a polyolefin selected from polyethylene, polypropylene and their blends, and (2) a mixt. contg. one or more alkylhydroxy-phenylalkanoyl hydrazines and a hindered amine of the formula (I), wherein the amt. of hydrazine is at least 0.1 pts.wt. per 100 pts.wt. polyolefin, and the wt. ratio of hydrazine : amine is 1:1-20:1; (b) hydrocarbon cable filler grease with interstices; and (c) a sheath surrounding components (a) and (b). R11 = H or CH3. Also claimed are: (i) a cable construction comprising N,N"'-[1,2-ethane di-yl bis[((4,6-bis[butyl-(1,2,26,6-pentamethyl-4-piperidinyl)amino]-1,3,5-triazine-2-yl]imino]-3,1-propane di-yl]]bis[N',N"-dibutyl-N',N"-bis(1,2,2,6,6-pentamethyl-4-piperidinyl)-1,3,5-triazine-2,4,6-triamine]; and (ii) a cable construction comprising polyethylene.</p> |
