74.
    发明专利
    未知

    公开(公告)号:DE19812858A1

    公开(公告)日:1999-09-30

    申请号:DE19812858

    申请日:1998-03-24

    Applicant: BASF AG

    Abstract: The invention relates to a method for producing styrene polymers containing water as only inflating agent by polymerising styrene in an aqueous suspension. Polymerisation is carried out in the presence of between 5 and 30 weight % recycled EPS dissolved in styrene, which contains the usual coating agents originating from EPS production.

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