[EN] PROCESS FOR PRODUCING CHLORINATED BUTYL RUBBER<br/>[FR] PROCÉDÉ DE PRODUCTION DE CAOUTCHOUC BUTYLE CHLORÉ
申请人:ARLANXEO CANADA INC
公开号:WO2020132742A1
公开(公告)日:2020-07-02
The invention relates to an energy efficient, fast and environmentally favourable process for the preparation of chlorinated butyl rubbers, that uses hypochlorous acid (HOCl) and/or dichlorine monoxide (Cl2O) as halogenating agent. The process comprises reacting a copolymer with hypochlorous acid and/or dichlorine oxide. The copolymer comprises units derived from an isoolefin monomer and units derived from a multiolefin monomer. A preferred isoolefin is isobutene and a preferred multiolefin is isoprene.