ULTRATHIN SOLID MEMBRANE COMPOSED OF SILICON-CONTAINING COPOLYMER, PROCESS FOR PRODUCING SAID MEMBRANE AND USE THEREOF FOR CONCENTRATING A GAS

摘要

A film-forming silicon-containing copolymer consists substantially of recurring units derived from a silicon-containing allyl monomer and an ethylenically unsaturated monomer and/or a diene unsaturated monomer. …An ultrathin solid membrane composed substantially of the silicon-containing copolymer and a process for preparing the ultrathin solid membrane from the silicon-containing polymer. …The ultrathin membrane is useful for obtaining a specified gas such as oxygen in the concentrated state from a mixture of two or more gases such as air.