| abstract |
PCT No. PCT/JP82/00454 Sec. 371 Date Jul. 20, 1983 Sec. 102(e) Date Jul. 20, 1983 PCT Filed Nov. 30, 1982 PCT Pub. No. WO83/01905 PCT Pub. Date Jun. 9, 1983.A gas separation membrane using, as the material for the membrane, a polymer having the main repeating unit of the formula: <IMAGE> and/or formula: <IMAGE> (where R represents alkyl group, vinyl group, allyl group, cycloalkyl group, aryl group, benzyl group or hydrogen atom, each R being possibly identical or different to each other) and having the number average molecular weight of between 1,000-1,000,000, or a partially or wholly hydrogenated product of said polymer with the unsaturation bonds therein. |