WATER-ABSORBING POLYMERIC PARTICLES AND METHOD FOR THE PRODUCTION THEREOF
    1.
    发明申请
    WATER-ABSORBING POLYMERIC PARTICLES AND METHOD FOR THE PRODUCTION THEREOF 审中-公开
    吸水聚合物颗粒及其生产方法

    公开(公告)号:WO2009016055A3

    公开(公告)日:2009-08-20

    申请号:PCT/EP2008059496

    申请日:2008-07-21

    CPC classification number: A61L15/60 A61L15/42 A61L15/58

    Abstract: The present invention relates to a water absorbing material obtainable by a process comprising the steps of bringing particles of a non surface-crosslinked water-absorbing polymer in contact with a) at least one postcrosslinker, b)10-1000 ppm, based on the non surface-crosslinked water-absorbing polymer, of at least one Nitrogen-containing water-soluble polymer of which the Nitrogen can be protonated, and c)at least one hydrophobic polymer and heat-treating the particles thus obtained at a temperature in the range from 120°C to 300°C and a method for the production thereof.

    Abstract translation: 本发明涉及一种吸水材料,该方法包括以下步骤:使非表面交联的吸水聚合物的颗粒与a)至少一个后交联剂接触,b)10-1000ppm,基于非 - 表面交联的吸水聚合物,其至少一种含氮的水溶性聚合物,其中氮可以被质子化,以及c)至少一种疏水性聚合物,并在如下温度范围内对由此获得的颗粒进行热处理: 120℃〜300℃,及其制造方法。

    WATER-ABSORBING POLYMERIC PARTICLES AND METHOD FOR THE PRODUCTION THEREOF
    3.
    发明申请
    WATER-ABSORBING POLYMERIC PARTICLES AND METHOD FOR THE PRODUCTION THEREOF 审中-公开
    吸水性聚合物颗粒及其生产方法

    公开(公告)号:WO2009016054A2

    公开(公告)日:2009-02-05

    申请号:PCT/EP2008059495

    申请日:2008-07-21

    CPC classification number: A61L15/60

    Abstract: The present invention relates to a water absorbing material obtainable by a process comprising the steps of bringing particles of a non surface-crosslinked water-absorbing polymer in contact with a) at least one post-crosslinker, b) 0.1 - 1.0 wt.% of at least one water-insoluble metal phosphate, based on the non surface-crosslinked water-absorbing polymer, and at least one further ingredient selected from c) at least one Nitrogen-containing water-soluble polymer of which the Nitrogen can be protonated, and d) at least one hydrophobic polymer and heat-treating the particles thus obtained at a temperature in the range from 120°C to 300°C and a method for the production thereof.

    Abstract translation: 本发明涉及一种吸水材料,所述吸水材料通过包括以下步骤的方法获得:使非表面交联的吸水性聚合物的颗粒与a)至少一种后交联剂接触,b)0.1-1.0重量%的 至少一种基于非表面交联的吸水聚合物的水不溶性金属磷酸盐和至少一种选自c)至少一种氮可被质子化的含氮水溶性聚合物的其他成分,和 d)至少一种疏水性聚合物,并在120℃至300℃的温度下热处理由此获得的颗粒及其制备方法。

    5.
    发明专利
    未知

    公开(公告)号:AT520643T

    公开(公告)日:2011-09-15

    申请号:AT04724254

    申请日:2004-03-30

    Applicant: BASF SE

    Abstract: Trimethylolpropane esters are new. Trimethylolpropane esters are of formula (1). (1) AO : OCH2CH2, OCH2CH(CH3), OCH(CH3)CH2, n1-n3 : 4-6; n1+n2+n3+n4 : 14-16; m1-m3 : 1-3; m1+m2+m3 : 4-6; R1-R3 : 4-6 Independent claims are included for: (1) a process for the production of esters of formula (1) by reaction of alkoxylated trimethylolpropane with (meth)acrylic acid in the presence of at least one esterification catalyst (C) and at least one polymerization inhibitor (D) as well as optionally a solvent (E) that forms an azeotrope with water; optionally removal of at least a portion of the water from the reaction mixture during or after the water from the reaction, optiionally neutralizing the reaction mixture; optionally removing the solvent if present by distillation and/or stripping with an inert gas; (2) across-linked hydrogel prepared by polymerization of an ester of formula (1) with (meth)acrylic acid with optionally additional monoethylenicaly unsaturated compounds (N) as well as optionally at least a further copolymerizable hydrophilic monomer (M) in the presence of at least one radicatl initiator (K) and optionally a graft base (L); optionally cross-linking of the resulting reaction mixture; drying of the reaction mixture and optionally grinding the reaction mixture; (3) a mixture comprising 0.1-40 wt.% of a ester of formula (1) and (meth)acrylic acid, 0.5-99.9 wt.% of a hydrophilic monomer (M), 0-10 wt.% of an esterification catalyst (C), 0-5 wt.% polymerization inhibitor (D) and 0-10 wt.% sovlent (E).

    7.
    发明专利
    未知

    公开(公告)号:DE50311022D1

    公开(公告)日:2009-02-12

    申请号:DE50311022

    申请日:2003-10-28

    Applicant: BASF SE

    Abstract: The present invention relates to materials formed from superabsorbent polymer (SAP) and fibers that are obtainable by pressing at not less than 60° C. and not less than 3 bar. More particularly, the present invention relates to materials which are obtained by in situ polymerization of SAP precursor mixtures on the fiber. The present invention also relates to processes for producing such materials and to their use.

    10.
    发明专利
    未知

    公开(公告)号:AT506393T

    公开(公告)日:2011-05-15

    申请号:AT05715387

    申请日:2005-02-18

    Applicant: BASF SE

    Abstract: The invention concerns a process for producing water-absorbing polymer, which comprises a base polymer A being mixed with a first aqueous solution B of at least one surface postcrosslinker and a second aqueous solution C of at least one polyvalent cation and thermally treated, wherein said base polymer A is based on at least 50% neutralized acid-functional monomer and said solutions B and C are metered wholly or partly concurrently through separate nozzles whereby a water-absorbing polymer having a high saline flow conductivity value is obtained.

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