Electrically insulating pipes with folded ad - hesive tape,申请号NL19700017981-传众专利搜索

Electrically insulating pipes with folded ad - hesive tape

申请公布号：NL7017981(A)

申请号：NL19700017981

申请日期：1970.12.09

申请公布日期：1972.06.13

分类号：B29C63/10;F16L58/16;(IPC1-7):29C27/28;16L58/00

主分类号：B29C63/10

摘要：<p>Electrically insulated pipes are produced by (a) assembling a cover tape consisting of an internal layer of a self adhesive material and an external layer of a mechanically resistant material, the layers having parallel side edges spaced from each other, (b) winding this cover tape around the pipe with the adhesive layer in contact with the pipe and a side edge of the cover tape folded on itself in order to expose an edge provided with adhesive in contact with the adhesive of the opposite edge of the tape, and (c) forming an adhesive-adhesive bond between the edges. Pref. external layer is copoly(ethylene-vinyl acetate), polypropylene, PVC, etc. and internal layer is a rubber. Pipes are efficiently provided with an electrically insulating cover with an excellent moisture resistance. The pipes are effectively protected against abrasion and electrolytic corrsion.</p>