68.
    发明专利
    未知

    公开(公告)号:FR2416237B1

    公开(公告)日:1980-08-29

    申请号:FR7802726

    申请日:1978-02-01

    Applicant: DIA PROSIM

    Abstract: Improved process for the chloromethylation of cross-linked vinylaromatic polymers and copolymers wherein a chlorine generator is incorporated into the reactants and a metallic chloride replaces part or all of the sulfuric acid used in forming the chloromethylating complex. The chloromethylated polymer may be further functionalized to produce an ion-exchange resin.

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