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1.发明申请METHOD FOR THE PRODUCTION OF WATER ABSORBENT POLYMER PARTICLES BY POLYMERIZING DROPS OF A MONOMER SOLUTION 审中-公开聚合单体溶液滴落法制备吸水性聚合物颗粒的方法
公开(公告)号：WO2008040715A3
公开(公告)日：2008-05-22
申请号：PCT/EP2007060418
申请日：2007-10-02
Applicant: BASF SE , LOESCH DENNIS , KRUEGER MARCO , STAMMER ACHIM
Inventor： LOESCH DENNIS , KRUEGER MARCO , STAMMER ACHIM
CPC classification number: C08F2/00 , C08F2/01 , C08F2/10 , C08F2/16 , C08F2/18 , C08F220/06 , C08F222/1006 , Y10S526/93
Abstract: The invention relates to a method for the production of water absorbent polymer particles by polymerizing drops of a monomer solution in a gas phase surrounding the drops, wherein the initiator of the monomer solution is added 0.5 to 60 seconds before the production of the drops.
Abstract translation: 通过聚合围绕液滴的气相中的单体溶液的液滴来制备吸水聚合物颗粒的方法，其中在液滴形成之前0.5至60秒将引发剂加入到单体溶液中。
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公开(公告)号：AR121994A1
公开(公告)日：2022-08-03
申请号：ARP210101197
申请日：2021-05-03
Applicant: BASF SE
Inventor： LOESCH DENNIS , LARYEA ESTHER MATYKA , SCHMIDT ANNA , CORINA - EL-TOUFAILI FAISSAL , ALI - BARRERA-MEDRANO DANIEL , OSTERMAYR MARKUS
IPC: C08F220/56 , C08F6/00 , C08F6/06 , C08L33/26
Abstract: El proceso para producir composiciones acuosas de polímeros hidrosolubles a partir de geles acuosos de polímero mediante el desmenuzamiento y la mezcla del gel acuoso de polímero con un líquido acuoso por medio de una unidad de desmenuzamiento que comprende una cámara de flujo, una herramienta de moldeo tipo lámina y medios de corte giratorios, en donde una corriente de un líquido acuoso fluye a través de la cámara de flujo, el gel acuoso de polímero se presiona a través de la herramienta de moldeo tipo lámina, cortando las tiras de gel así formadas en rodajas, dispersándolas en el líquido acuoso y homogeneizando la mezcla así obtenida.
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公开(公告)号：CA3076553A1
公开(公告)日：2019-05-02
申请号：CA3076553
申请日：2018-10-18
Applicant: BASF SE
Inventor： SPRAFKE HAZEL , ZIMMERMANN TOBIAS JOACHIM , MECKELNBURG DIRK , LOESCH DENNIS , OSTERMAYR MARKUS , EL-TOUFAILI FAISSAL-ALI
Abstract: Process for producing aqueous polyacrylamide solutions by polymerizing an aqueous solution comprising at least acrylamide thereby obtaining an aqueous polyacrylamide gel and dissolving said aqueous polyacrylamide gel in water, wherein the manufacturing steps are allocated to two different locations A and B and the process comprises the step of transporting an aqueous polyacrylamide gel hold in a transportable polymerization unit from a location A to a location B. The transportable polymerization unit comprises a cylindrical upper part, a conical part at its lower end, feeds for the aqueous monomer solution, a closable bottom opening, and means allowing to deploy the polymerization unit in a vertical manner.
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公开(公告)号：AU2017257206A1
公开(公告)日：2018-11-15
申请号：AU2017257206
申请日：2017-04-25
Applicant: BASF SE
Inventor： SPRAFKE HAZEL , EL-TOUFAILI FAISSAL-ALI , LANGLOTZ BJOERN , BARRATT JOHN , BRINGMANN TOBIAS , FONSECA ZEPEDA GABRIELA EUGENIA , JECK SANDRA , LOESCH DENNIS , MECKELNBURG DIRK , OSTERMAYR MARKUS , SCHUBE BERND , SOETJE OLIVER
IPC: C08F20/56
Abstract: A method for preparing an aqueous polyacrylamide solution is disclosed. The method comprises: - hydrating acrylonitrile in water in presence of a biocatalyst capable of converting acrylonitrile to acrylamide so as to obtain an acrylamide solution, - directly polymerizing the acrylamide solution so as to obtain a polyacrylamide gel, and - directly dissolving the polyacrylamide gel by addition of water so as to obtain an aqueous polyacrylamide solution, wherein the polyacrylamide gel is dissolved by means of water jet cutting.
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公开(公告)号：AU2017258560A1
公开(公告)日：2018-11-08
申请号：AU2017258560
申请日：2017-04-20
Applicant: BASF SE
Inventor： JECK SANDRA , SOETJE OLIVER , BRINGMANN TOBIAS , FONSECA ZEPEDA GABRIELA EUGENIA , MECKELNBURG DIRK , LOESCH DENNIS , LANGLOTZ BJOERN , BARRATT JOHN , EL-TOUFAILI FAISSAL-ALI , SCHUBE BERND , OSTERMAYR MARKUS , SPRAFKE HAZEL
Abstract: Process and apparatus for producing an aqueous polymer solution comprising the steps of • (a) providing a hydrated polymer that has been prepared by aqueous solution polymerisation of ethylenically unsaturated monomers, which hydrated polymer comprises at least 10% by weight active polymer; • (b) cutting the hydrated polymer by subjecting the hydrated polymerto at least one cutting stage comprising at least one stream of aqueous liquid at a pressure of at least 150 bar to reduce the size of the hydrated polymer, • (c) dissolving the hydrated polymer in an aqueous liquid so as to obtain an aqueous polymer solution.
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Patent Agency Ranking
公开(公告)号：AU2017257205A1
公开(公告)日：2018-10-18
申请号：AU2017257205
申请日：2017-04-25
Applicant: BASF SE
Inventor： SPRAFKE HAZEL ANNE , EL-TOUFAILI FAISSAL-ALI , LANGLOTZ BJOERN , BARRATT JOHN , BRINGMANN TOBIAS , FONSECA ZEPEDA GABRIELA EUGENIA , JECK SANDRA , LOESCH DENNIS , MECKELNBURG DIRK , OSTERMAYR MARKUS , SCHUBE BERND , SOETJE OLIVER
IPC: C08F20/56
Abstract: A method for preparing an aqueous polyacrylamide solution is disclosed. The method comprises: - hydrating acrylonitrile in water in presence of a biocatalyst capable of converting acrylonitrile to acrylamide so as to obtain an acrylamide solution, - directly polymerizing the acrylamide solution so as to obtain a polyacrylamide gel, and - directly dissolving the polyacrylamide gel by addition of water so as to obtain an aqueous polyacrylamide solution.
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公开(公告)号：BRPI0815765A2
公开(公告)日：2014-10-21
申请号：BRPI0815765
申请日：2008-08-25
Applicant: BASF SE
Inventor： LOESCH DENNIS , KRUEGER MARCO , STUEVEN UWE , HEIDE WILFRIED , WEISMANTEL MATTHIAS , BLEI STEFAN
Abstract: A process for producing water-absorbing polymer particles by polymerizing droplets of a monomer solution in a surrounding gas phase, wherein the monomer solution comprises at least 0.0002% by weight of oxygen and the oxygen content of the gas phase is at least 0.5% by volume.
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公开(公告)号：MX2013008936A
公开(公告)日：2013-10-01
申请号：MX2013008936
申请日：2012-01-31
Applicant: BASF SE
Inventor： DOMKE IMME , MICHAILOVSKI ALEXEJ , SHISHKOV IGOR , RIEGER REINHOLD , DEUERLEIN STEPHAN , LOESCH DENNIS , BLACKWOOD DAVID F
Abstract: Un aparato para la separación de constituyentes magnéticos de una dispersión que comprende estos constituyentes magnéticos y constituyentes no magnéticos, que comprende al menos un canal similar a un bucle a través del cual fluye una dispersión que tiene al menos dos entradas y al menos dos salidas, que comprende además al menos un imán que es movible junto al canal, donde el canal está dispuesto en relación con la gravedad de una manera que los constituyentes no magnéticos son asistidos para entrar en al menos la primera salida primera (corriente I) por sedimentación y por la corriente de la dispersión y los constituyentes magnéticos son forzados en al menos una segunda salida (corriente II) por una fuerza magnética contra una corriente de agua de lavado. Además, un proceso para la separación de constituyentes magnéticos de una dispersión que comprende estos constituyentes magnéticos y constituyentes no magnéticos.
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公开(公告)号：BRPI0714445A2
公开(公告)日：2013-03-12
申请号：BRPI0714445
申请日：2007-07-11
Applicant: BASF SE
Inventor： STUEVEN UWE , WEISMANTEL MATTHIAS , HEIDE WILFRIED , KRUEGER MARCO , SEIDL VOLKER , BLEI STEFAN , LOESCH DENNIS , FUNK RUEDIGER , HILLEBRECHT ANNEMARIE
Abstract: A process for preparing water-absorbing polymer beads with high permeability by polymerizing droplets of a monomer solution in a gas phase surrounding the droplets, wherein the monomer solution comprises at least 0.5% by weight of a crosslinker, based on the monomer, the polymerization in the droplet takes place in homogeneous phase, and the polymer beads have a mean diameter of at least 150 μm.
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公开(公告)号：AT507248T
公开(公告)日：2011-05-15
申请号：AT06700825
申请日：2006-01-14
Applicant: BASF SE
Inventor： LOESCH DENNIS , SEIDL VOLKER , STUEVEN UWE
Abstract: Water-absorbing polymeric particles are produced by spray polymerization of a monomer solution in a process wherein the monomer solution is spray dispensed and at least one crosslinker accumulates in the region of the droplet surface, and are useful in hygiene articles.
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