METHOD FOR PRODUCING WATER-ABSORBENT POLYMER PARTICLES WITH IMPROVED PROPERTIES
    66.
    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。

    Color-Stable Superabsorbent
    70.
    发明申请
    Color-Stable Superabsorbent 审中-公开
    颜色稳定超吸收剂

    公开(公告)号:US20130260988A1

    公开(公告)日:2013-10-03

    申请号:US13853457

    申请日:2013-03-29

    Applicant: BASF SE

    Abstract: A superabsorbent having surfaces complexed with polyvalent metal ions and which contains at least one phosphonic acid derivative, and the molar ratio between polyvalent metal and phosphonic acid derivative is at most 1.2/n, where n is the number of phosphonic acid groups in the phosphonic acid derivative. The superabsorbent exhibits good stability against discoloration and a surprisingly low caking tendency without any significant impairment of its performance properties.

    Abstract translation: 具有与多价金属离子络合的表面并含有至少一种膦酸衍生物的超吸收体,多价金属与膦酸衍生物的摩尔比为1.2以下,n为膦酸中的膦酸基数 衍生物。 超吸收剂表现出良好的抗变色稳定性和令人惊讶的低结块倾向,而其性能特性没有任何显着的损害。

Patent Agency Ranking