公开(公告)号：US4983449A

公开(公告)日：1991-01-08

申请号：US413129

申请日：1989-09-27

申请人： Robert M. Nee

发明人： Robert M. Nee

IPC分类号： B32B11/04 ,  E02D31/02 ,  F16L58/16

CPC分类号： E02D31/02 ,  B32B11/04 ,  F16L58/16 ,  Y10S138/06 ,  Y10S428/914 ,  Y10T428/31815 ,  Y10T442/2918 ,  Y10T442/3041 ,  Y10T442/3886

摘要： A continuous strip non-shielding and pressure-resistant wrapping material for protecting buried metallic pipe is disclosed. The wrapping material comprises a continuous layer of cold-flowable rubberized bitumen bonded to a substantially non-elastic porous support backing with a release film positioned on the exposed face of the bitumen to protect the bitumen prior to application. When applied to a metallic pipe, the protective bitumen is secured to and held in place by the non-elastic support backing and thus cannot sag away from the pipe. The porous support backing provides potential electric current paths through each pore so that cathodic protection can be effectively utilized to protect against corrosion in even the smallest holiday in the bitumen layer.

摘要翻译： 公开了一种用于保护埋金属管的连续条带非屏蔽和耐压包装材料。 包裹材料包括连续的冷可流动的橡胶沥青层，其结合到基本上非弹性的多孔支撑背衬上，释放膜定位在沥青的暴露面上，以在施加之前保护沥青。 当应用于金属管道时，保护性沥青通过非弹性支撑背衬固定并固定在适当的位置，因此不能从管道下垂。 多孔支撑背衬提供通过每个孔的潜在电流路径，使得即使在沥青层中的最小假日中也可以有效地利用阴极保护来防止腐蚀。

公开(公告)号：US5120381A

公开(公告)日：1992-06-09

申请号：US576965

申请日：1990-09-04

申请人： Robert M. Nee

发明人： Robert M. Nee

IPC分类号： B32B11/04 ,  E02D31/02 ,  F16L58/16

CPC分类号： E02D31/02 ,  B32B11/04 ,  F16L58/16 ,  Y10S138/06 ,  Y10S428/914 ,  Y10T428/31815 ,  Y10T442/2918 ,  Y10T442/3041 ,  Y10T442/3886

摘要： A continuous strip non-shielding and pressure-resistant wrapping material for protecting buried metallic pipe is disclosed. The wrapping material comprises a continuous layer of cold-flowable rubberized bitumen bonded to a substantially non-elastic porous support backing with a release film positioned on the exposed face of the bitumen to protect the bitumen prior to application. When applied to a metallic pipe, the protective bitumen is secured to and held in place by the non-elastic support backing and thus cannot sag away from the pipe. The porous support backing provides potential electric current paths through each pore so that cathodic protection can be effectively utilized to protect against corrosion in even the smallest holiday in the bitumen layer.

摘要翻译： 公开了一种用于保护埋金属管的连续条带非屏蔽和耐压包装材料。 包裹材料包括连续的冷可流动的橡胶沥青层，其结合到基本上非弹性的多孔支撑背衬上，释放膜定位在沥青的暴露面上，以在施加之前保护沥青。 当应用于金属管道时，保护性沥青通过非弹性支撑背衬固定并固定在适当的位置，因此不能从管道下垂。 多孔支撑背衬提供通过每个孔的潜在电流路径，使得即使在沥青层中的最小假日中也可以有效地利用阴极保护来防止腐蚀。