Patent ID: 6303866
Filing Date: 2001-10-16
Classification: C08L,H01B,H01C

Abstract:
A self-adjusting cable wherein the material having a PTC behavior (positive temperature coefficient) is an extrudable alloy of compatible polymers comprising, expressed in percentages by weight with respect to the weight of said polymers:from 20% to 50% of at least one polar polyolefin,from 50% to 80% of a least one matrix polymer chosen from poly(C.sub.1 -C.sub.4 -alkylene) terephtalates, polyamides, polycarbonates, polyester and polyether copolymers, polyketones and methyl polymethacrylates or mixtures thereof,from 5% to 15% of conductive fillers, and,optionally, non conductive fillers, said adjusting cable having:a ratio of starting current intensity to maximum current intensity, at 10.degree. C., of less than 3,and a linear power at 10.degree. C. between 5 W/m and 130 W/m measured according to the standard DIN VDE 0254.