METHOD FOR PRODUCING WATER-ABSORBENT POLYMER PARTICLES WITH IMPROVED PROPERTIES
    2.
    发明申请
    METHOD FOR PRODUCING WATER-ABSORBENT POLYMER PARTICLES WITH IMPROVED PROPERTIES 有权
    生产具有改进性能的吸水聚合物颗粒的方法

    公开(公告)号:US20150119531A1

    公开(公告)日:2015-04-30

    申请号:US14407490

    申请日:2013-06-21

    Applicant: BASF SE

    Abstract: The present invention relates to a process for producing water-absorbing polymer particles having an improved profile of properties, comprising thermal surface postcrosslinking in the presence of a salt of a polyvalent metal cation and a complexing anion and subsequent aftertreatment, the aftertreatment comprising coating with a salt of a polyvalent metal cation and a non-complexing anion, and remoisturization with further drying.

    Abstract translation: 本发明涉及具有改进的性能特征的吸水性聚合物颗粒的制造方法,其包括在多价金属阳离子的盐和络合阴离子存在下的热表面后交联和随后的后处理,后处理包括用 多价金属阳离子和非络合阴离子的盐,并进一步干燥进行再润湿。

Patent Agency Ranking