发明名称 |
Electrical insulating paper and method of making same |
摘要 |
The herein-disclosed electrical insulating paper is well-suited to the insulation of extra-and ultra-high-voltage oil-filled electric power cable, and comprises at least one layer (A) which is a mixture of polypropylene fibers and kraft pulp and at least one layer (B) of accumulated polypropylene fibers laminated to the layer (A) by fiber-to-fiber bonding of the polypropylene fibers. The electrical insulating paper is prepared by superposing at least one layer of a mixed paper of polypropylene fibers and kraft pulp and at least one layer of polypropylene web, and heating the superposed layers at a temperature of 110 DEG to 180 DEG C to thermally laminate the layers each other.
|
申请公布号 |
US4096313(A) |
申请公布日期 |
1978.06.20 |
申请号 |
US19770793909 |
申请日期 |
1977.05.04 |
申请人 |
DAINICHI-NIPPON CABLES, LTD. |
发明人 |
FUJITA, HIDEO;ITOH, HIROTAKA |
分类号 |
B32B5/08;D04H13/00;D21H11/04;D21H13/14;D21H27/38;H01B3/48;(IPC1-7):B32B5/02 |
主分类号 |
B32B5/08 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|