Electrically conductive polymer for use as massive drive or transport rolls - comprises non-black rubber copolymerisate contg. calcium- and/or ammonium-formate(s)

摘要

The electrically conductive polymer prod., esp. rubber copolymerisate, as a non-black prod., is new. The prod. has an electrical leakage resistance of no more than 10 power (4) ohms in the resting state and no more than 10 power (6) ohms in the operating state in normal climactic conditions. A component comprises 3-30 wt.% calcium- and/or ammonium formate(s). Pref. 25 wt.% calcium formate and 10 wt.% ammonium formate are added. The normal climatic conditions for the polymer prod. are 23 (+-) 2 deg.C and 50(+-)6% relative humidity in the resting state and about 60% relative atmos. humidity in the operating state. USE/ADVANTAGE - Used as massive roll- or massive ring for drive and transport purposes (claimed). Static charges are reduced without affecting the electrical conductivit