| 摘要 |
PCT No. PCT/JP81/00145 Sec. 371 Date Feb. 8, 1982 Sec. 102(e) Date Feb. 8, 1982 PCT Filed Jun. 24, 1981 PCT Pub. No. WO82/00163 PCT Pub. Date Jan. 21, 1982.This invention relates to a sheet which is formed by randomly dispersing and accumulating polyphenylene sulfide (PPS) filaments and to a process for producing the same. The filaments drawn by a high-velocity air stream are formed directly into a sheet. The sheet is useful as industrial filters, heat insulating materials, electrical insulating materials, etc. because of its outstanding chemical resistance, heat resistance, and electrical insulating properties. |
