| 摘要 |
1278766 Coated sheet materials MONTICATINI EDISON SpA 30 Jan 1970 [30 Jan 1969] 4524/70 Heading B2E [Also in Divisions B5 and C3] A supported membrane is obtained by (a) forming a solution of poly (5 - N,N - di isopropylamino - 1 - pentene) and polybutene - 1 in toluene, (b) dipping a polyethylene terephthalate fabric in the solution, (c) allowing the solvent to evaporate, (d) repeating (b) + (c) to increase the amount of polymer coating, and (e) treating the supported membrane with diiodoethane to effect quaternization of the amino groups and cross-linking (Example 5). |
