Patent ID: 8735725
Filing Date: 2014-05-27
Classification: H01B,H05K

Abstract:
1. A signal transmission line disposed with a conductive plastic material layer, wherein the signal transmission line at least comprises a metal wire disposed with an insulation layer, a conductive plastic material layer is disposed outside the metal wire disposed with the insulation layer, and an insulation outer coating layer is disposed outside the conductive plastic material layer, wherein the conductive plastic material layer is an electromagnetic shielding material, compositions of the conductive plastic material layer are a combination of resin and conductive carbon black, and the conductive carbon black is of: pore volume (DBP): 480-510 ml/100 g; grain size: less than 125 micrometers, 7% w/w max; content of coarse grains: 30 mg/kg max; humidity: 0.5% w/w max; volatile matter: 1.0% w/w max; iodine adsorption: 1000-1150 mg/g; ash: 0.1% w/w max; pH value: 8-10; and bulk density: 100-120 kg/m3.