发明名称 |
Mehrschichtiges heissschrumpfbares Rohr aus Schaumstoff |
摘要 |
<p>The invention relates to a multi-layer foam heat-shrinkable tube comprising a hot-melt adhesive layer as the innermost layer, at least one non-foam layer and at least one foam layer provided on an outside surface of the hot-melt adhesive layer. The invention also relates to a method for producing a multi-layer foam heat-shrinkable tube comprising extruding a hot-melt adhesive layer as the inner most layer, at least one non-foam layer, and at least one foam layer to form a multi-layer foam tube, heating and expanding the inner diameter of the multi-layer foam tube, and cooling the expanded multi-layer tube while an inner diameter of the tube at the expanded state is maintained. The non-foam layers and foam layers can be provided in any number and any order. The multi-layered foam heat-shrinkable tube easily adheres to and covers the surface of an article such as a metal pipe, a metal rod, or the like, and provides good heat and electrical insulation, corrosion resistance, water - resistance, and so on, to thereby protect the article. The tensile strength of the multi-layer foam heat-shrinkable tube is not lessened even if the foaming ratio of a foam layer is made high. <IMAGE></p> |
申请公布号 |
DE69224329(T2) |
申请公布日期 |
1998.05.20 |
申请号 |
DE1992624329T |
申请日期 |
1992.06.26 |
申请人 |
SUMITOMO ELECTRIC INDUSTRIES, LTD., OSAKA, JP |
发明人 |
SHIKUSHIMA, SATOSHI, C/O OSAKA WORKS, KONOHANA-KU, OSAKA-SHI, OSAKA, JP;KISHIMOTO, TOMOYOSHI, C/O KUMATORI WORKS, KUMATORI-CHO, SENNAN-GUN, OSAKA, JP |
分类号 |
B29C63/42;B29D23/00;B29K105/02;B29K105/04;B29L23/00;B32B1/08;B32B5/18;F16L58/10;F16L59/02;(IPC1-7):B32B1/08 |
主分类号 |
B29C63/42 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|