Process for producing water-absorbing polymer particles

    公开(公告)号:US10137432B2

    公开(公告)日:2018-11-27

    申请号:US15862758

    申请日:2018-01-05

    Applicant: BASF SE

    Abstract: The invention relates to a process for producing water-absorbing polymer particles, comprising the steps of: •—processing an aqueous polymer gel from polymerization of a monomer solution or suspension, •—drying the aqueous polymer gel in a conveyer dryer, in particular in a forced air conveyer dryer, wherein •—the conveyer dryer has a circulating conveyer belt and the aqueous polymer gel is conveyed on the circulating conveyer belt, and wherein •—the circulating conveyer belt is formed as a circulating plate conveyer belt, comprising a number of belt plates separated by a hinge line of a hinge assembly and each belt plate having a surface for receiving the aqueous polymer gel, wherein said hinge assembly comprises a knuckle joint (301) with the hinge line in form of a straight hinge line.

    Fluid-Absorbent Article
    24.
    发明申请
    Fluid-Absorbent Article 审中-公开
    流体吸收制品

    公开(公告)号:US20160206772A1

    公开(公告)日:2016-07-21

    申请号:US14914269

    申请日:2014-03-20

    Applicant: BASF SE

    CPC classification number: A61L15/24 A61L15/60

    Abstract: The present invention relates to a fluid-absorbent article, comprising a water-absorbent core with a basis weight of the fluid-absorbent core at the insult zone of at least 500 gsm, comprising 10 to 100% by weight water-absorbent polymer particles, wherein the water-absorbent polymer particles having a mean sphericity (SPHT) from 0.8 to 0.95 and satisfying the following conditions: (a) the sum of centrifuge retention capacity (CRC) and absorbency under high load (AUHL) being at least 60 g/g, and/or (b) the log10(SFC)>5.7−0.138×CRC, with SFC being not less than 5, wherein the CRC is given in g/g and the SFC in 10−7 cm3−s/g.

    Abstract translation: 本发明涉及一种流体吸收制品,其包括吸水芯的基重在至少500gsm的损伤区的吸水芯,包含10至100重量%的吸水聚合物颗粒, 其特征在于,所述吸水性聚合物颗粒的平均球形度(SPHT)为0.8〜0.95,满足以下条件:(a)离心保留容量(CRC)与高负载下的吸光度(AUHL)之和为至少60g / g,和/或(b)log10(SFC)> 5.7-0.138×CRC,其中SFC不小于5,其中CRC以g / g给出,SFC以10-7cm 3-s / g表示。

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