| 摘要 |
PCT No. PCT/GB91/01587 Sec. 371 Date Mar. 18, 1993 Sec. 102(e) Date Mar. 18, 1993 PCT Filed Sep. 17, 1991 PCT Pub. No. WO92/05674 PCT Pub. Date Apr. 2, 1992.A conductive polymeric tape has elongate electrodes, (6) extending along its long edges, and comprises a central longitudinal strip (8) of different resistance to the remainder of the tape. The strip (8) extends part way only along the tape. The tape may also, or instead, contain discontinuities (20) preferably extending across the tape. The purpose of the strip (8) and the discontinuities (20) is to control the passage of electrical current and also the heat output of different parts of the tape. |
