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Patent Agency Ranking
公开(公告)号：US09480968B2
公开(公告)日：2016-11-01
申请号：US14308968
申请日：2014-06-19
Applicant: BASF SE
Inventor： Matthias Weismantel , Rüdiger Funk , Ulrich Schröder , Marco Krüger , Sylvia Bertha , John Joseph Louden
CPC classification number: B01J20/261 , A61F13/15203 , A61F13/15658 , A61F13/53 , A61F2013/15422 , A61F2013/530496 , A61F2013/530569 , A61F2013/530583 , A61F2013/5307 , A61F2013/530708 , B01J20/28028
Abstract: The present invention relates to a process for producing fluid-absorbent cores, comprising mixing a fibrous material and fluid-absorbent polymer particles having low moisture content and low apparent density and pressing the obtained mixture under specific conditions.
Abstract translation: 本发明涉及一种制造流体吸收芯的方法，包括将纤维材料和具有低水分含量和低表观密度的流体吸收聚合物颗粒混合并在特定条件下压制所得混合物。
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公开(公告)号：US20200283588A1
公开(公告)日：2020-09-10
申请号：US16649793
申请日：2018-10-09
Applicant: BASF SE
Inventor： Oskar Stephan , Gerald Gruenewald , Matthias Weismantel , Karl Possemiers , Monte Alan Peterson , Ruediger Funk , Sylvia Bertha , Tom Catternan
IPC: C08J5/02
Abstract: A process for producing superabsorbents, comprising the steps of i) classifying the superabsorbent particles by means of one or more sieves and ii) removing metallic impurities by means of one or more magnetic separators, wherein classification is accomplished using sieves made of a wire mesh, the wires of the wire mesh consist of a steel composed of at least 70% by weight of iron, at least 10% by weight of chromium and less than 2.5% by weight of nickel, and the throughput of superabsorbent particles in the magnetic separator is in the range from 2.0 to 6.5 g/s per cm2 of free cross-sectional area.
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公开(公告)号：US20230149871A1
公开(公告)日：2023-05-18
申请号：US17920785
申请日：2021-04-22
Applicant: BASF SE
Inventor： Sebastian Marius Raupp , Sylvia Bertha , Andreas Daiss , Marco Krueger
Abstract: The invention relates to an apparatus for producing a pulverulent product, comprising a device for dropletization (5) of a liquid phase, an addition point (15) for a gas above the device for dropletization (5), at least one gas withdrawal point (19) on the circumference of the apparatus (1), a solid withdrawal point (12) and a tower shell (13) between the device for dropletization (5) and the gas withdrawal point (19) and having, above the solid withdrawal point (12), a region (11) having at least partly a decreasing hydraulic diameter toward the solid withdrawal point (12) and having a maximum hydraulic diameter greater than the mean hydraulic diameter of the tower shell (13), and the tower shell (13) projecting into the region (11) having at least partly a decreasing hydraulic diameter such that an annular duct (23) is formed between the part of the tower shell (13) projecting into the region (11) having at least partly a decreasing hydraulic diameter and the upper part (27) of the region having at least partly a decreasing hydraulic diameter, the at least one gas withdrawal point (19) being disposed in the annular duct (23), wherein the part of the tower shell (13) projecting into the region (11) having at least partly a decreasing hydraulic diameter and forming an inner wall of the annular duct (23) is made at least partly of a gas permeable material (29). The invention further relates to a use of the apparatus (1) for producing pulverulent poly(meth)acrylate.
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公开(公告)号：US11535719B2
公开(公告)日：2022-12-27
申请号：US16649793
申请日：2018-10-09
Applicant: BASF SE
Inventor： Oskar Stephan , Gerald Gruenewald , Matthias Weismantel , Karl Possemiers , Monte Alan Peterson , Ruediger Funk , Sylvia Bertha , Tom Catternan
Abstract: A process for producing superabsorbents, comprising the steps of i) classifying the superabsorbent particles by means of one or more sieves and ii) removing metallic impurities by means of one or more magnetic separators, wherein classification is accomplished using sieves made of a wire mesh, the wires of the wire mesh consist of a steel composed of at least 70% by weight of iron, at least 10% by weight of chromium and less than 2.5% by weight of nickel, and the throughput of superabsorbent particles in the magnetic separator is in the range from 2.0 to 6.5 g/s per cm2 of free cross-sectional area.
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公开(公告)号：US20140302985A1
公开(公告)日：2014-10-09
申请号：US14308968
申请日：2014-06-19
Applicant: BASF SE
Inventor： Matthias Weismantel , Rüdiger Funk , Ulrich Schröder , Marco Krüger , Sylvia Bertha , John Joseph Louden
IPC: B01J20/26
CPC classification number: B01J20/261 , A61F13/15203 , A61F13/15658 , A61F13/53 , A61F2013/15422 , A61F2013/530496 , A61F2013/530569 , A61F2013/530583 , A61F2013/5307 , A61F2013/530708 , B01J20/28028
Abstract: The present invention relates to a process for producing fluid-absorbent cores, comprising mixing a fibrous material and fluid-absorbent polymer particles having low moisture content and low apparent density and pressing the obtained mixture under specific conditions.
Abstract translation: 本发明涉及一种制造流体吸收芯的方法，包括将纤维材料和具有低水分含量和低表观密度的流体吸收聚合物颗粒混合并在特定条件下压制所得混合物。
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