3.
    发明专利
    未知

    公开(公告)号:AT534672T

    公开(公告)日:2011-12-15

    申请号:AT08861545

    申请日:2008-12-08

    Applicant: BASF SE

    Abstract: A process for producing water-absorbing polymer particles, comprising the addition of a solid additive to a polymer gel by means of a conveying screw (1), wherein the solid additive and a gas volume flow are fed to the conveying screw (1) by means of an addition channel (2).

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