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1.发明申请METHOD FOR PRODUCING WATER-ABSORBING POLYMER PARTICLES BY POLYMERIZING DROPLETS 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：WO2010003855A3
公开(公告)日：2010-04-01
申请号：PCT/EP2009058246
申请日：2009-07-01
Applicant: BASF SE , KRUEGER MARCO , BLEI STEFAN , HEIDE WILFRIED , WEISMANTEL MATTHIAS , STUEVEN UWE
Inventor： KRUEGER MARCO , BLEI STEFAN , HEIDE WILFRIED , WEISMANTEL MATTHIAS , STUEVEN UWE
IPC: C08F2/01 , C08F220/06
CPC classification number: B01J20/261 , C08F2/01 , C08F2/10 , C08F220/06 , C08F222/1006 , Y10T428/2982
Abstract: The invention relates to a method for producing water-absorbing polymer particles by polymerizing droplets of a monomer solution in a surrounding gaseous phase in a reaction chamber, the monomer solution being dosed to the reaction chamber through at least one bore, the diameter of each bore being 210 to 290 µm and the dosage rate per bore being 0.9 to 5 kg/h.
Abstract translation: 一种用于通过在反应室中的周围气体相，其中所述单体溶液通过至少一个孔计量加入到反应空间，并且每个的直径聚合单体的液滴制备吸水性聚合物颗粒的方法孔210至290微米，并且每个孔的计量速率为0.9〜 5公斤/小时。
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公开(公告)号：BRPI0714447A2
公开(公告)日：2013-03-12
申请号：BRPI0714447
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, comprising monomers bearing acid groups, in a gas phase surrounding the droplets, wherein the monomer solution comprises polyvalent cations and the polymer beads have a mean diameter of at least 150 μm.
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公开(公告)号：DE502008002757D1
公开(公告)日：2011-04-14
申请号：DE502008002757
申请日：2008-08-25
Applicant: BASF SE
Inventor： LOESCH DENNIS , KRUEGER MARCO , STUEVEN UWE , HEIDE WILFRIED , WEISMANTEL MATTHIAS , BLEI STEFAN
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公开(公告)号：ZA200901114B
公开(公告)日：2010-04-28
申请号：ZA200901114
申请日：2009-02-17
Applicant: BASF SE
Inventor： STUEVEN UWE , WEISMANTEL MATTHIAS , HEIDE WILFRIED , KRUEGER MARCO , SEIDL VOLKER , BLEI STEFAN , LOESCH DENNIS , FUNK RUEDIGER , HILLEBRECHT ANNEMARIE
IPC: A61L20100101 , C08F20100101 , C08J20100101
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：BRPI0717756A2
公开(公告)日：2013-10-22
申请号：BRPI0717756
申请日：2007-10-29
Applicant: BASF SE
Inventor： LOESCH DENNIS , KRUEGER MARCO , WEISMANTEL MATTHIAS , HEIDE WILFRIED
IPC: B01J19/00 , C08F2/01 , C08F2/10 , C08F220/06
Abstract: In a process for producing water-absorbing polymeric particles which comprises generating droplets comprising monomers, polymerizing the monomers in a heated gas phase surrounding the droplets and flowing the gas through the polymerization reactor, the temperature of the gas leaving the polymerization reactor is closed-loop controlled.
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Patent Agency Ranking
公开(公告)号：DE502007006381D1
公开(公告)日：2011-03-10
申请号：DE502007006381
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
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公开(公告)号：DE502007003770D1
公开(公告)日：2010-06-24
申请号：DE502007003770
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
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公开(公告)号：BRPI0809157A2
公开(公告)日：2014-09-16
申请号：BRPI0809157
申请日：2008-03-20
Applicant: BASF SE
Inventor： FUNK RUEDIGER , HEIDE WILFRIED , WEISMANTEL MATTHIAS , HAMMON ULRICH , BENNET ANDREA KAREN
IPC: C07C57/075 , C07C57/04
Abstract: The invention relates to a method for the transportation of a monomer composition in which a composition comprising an aqueous solution of partially or entirely neutralized acrylic acid or overneutralized acrylic acid is placed in a transport means or sent through a pipe. The method according to the invention is characterized in that it has an increased level of safety during the transportation of acrylic acid monomers, an improved quality of the resulting product, and a high degree of efficiency. The method ensures safe transport of the highly reactive acrylic acid. The amount of polymerization inhibitors added to said acrylic acid may be reduced. An additional advantage is the minimization of the formation of dimeric acrylic acid. Tempering of containers, pipes, and pipelines may be omitted.
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公开(公告)号：BRPI0714450A2
公开(公告)日：2013-03-12
申请号：BRPI0714450
申请日：2007-07-09
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 postcrosslinked water-absorbing polymer beads with high absorption by polymerizing droplets of a monomer solution in a gas phase surrounding the droplets, wherein the solids content of the monomer solution is at least 35% by weight and the polymer beads have a mean diameter of at least 150 μm.
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公开(公告)号：ZA200901112B
公开(公告)日：2010-04-28
申请号：ZA200901112
申请日：2009-02-17
Applicant: BASF SE
Inventor： STUEVEN UWE , WEISMANTEL MATTHIAS , HEIDE WILFRIED , KRUEGER MARCO , SEIDL VOLKER , BLEI STEFAN , LOESCH DENNIS , FUNK RUEDIGER , HILLEBRECHT ANNEMARIE
IPC: C08F20100101
Abstract: A process for preparing water-absorbing polymer beads with high permeability by polymerizing droplets of a monomer solution, comprising monomers bearing acid groups, in a gas phase surrounding the droplets, wherein the monomer solution comprises polyvalent cations and the polymer beads have a mean diameter of at least 150 μm.
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