公开(公告)号：EP1948698A1

公开(公告)日：2008-07-30

申请号：EP06807615.7

申请日：2006-10-27

Applicant: BASF SE

Inventor： LÖSCH, Dennis ,  SEIDL, Volker ,  RÜBENACKER, Martin

IPC: C08F2/10

CPC classification number: C08F226/02

Abstract: Process for production of polymer powders containing vinylformamide units via free-radical polymerization of an aqueous solution of N-vinylformamide and, if appropriate, other monomers and drying of the polymers, where an aqueous monomer solution which comprises N-vinylformamide and comprises at least one polymerization initiator is converted into spray or droplets to give an aerosol at the top of a heatable tower reactor and then the aerosol or the droplets is/are polymerized in an inert gas atmosphere to give a fine-particle solid, and the fine-particle polymer is discharged from the reactor.

公开(公告)号：EP1791879B1

公开(公告)日：2008-03-19

申请号：EP05783911.0

申请日：2005-09-06

Applicant: BASF SE

Inventor： BRODT, Gregor ,  EHRENSTEIN, Moritz ,  KRÜGER, Marco ,  SEIDL, Volker ,  WINTER, Dominik ,  KARIM, Asif ,  MORITZ, Hans-Ulrich

IPC: C08G12/38 ,  B01J2/04

CPC classification number: C08G12/38

Abstract: The invention relates to the spray condensation method for the production of dried resin in powder form made from melamine, urea or mixtures thereof and at least one aldehyde, whereby the morphology of the produced resin particles may be specifically influenced with regard to the particle parameters thereof.

公开(公告)号：EP2046839B2

公开(公告)日：2019-04-10

申请号：EP07787356.0

申请日：2007-07-11

Applicant: BASF SE

Inventor： STUEVEN, Uwe ,  WEISMANTEL, Matthias ,  HEIDE, Wilfried ,  KRÜGER, Marco ,  SEIDL, Volker ,  BLEI, Stefan ,  LÖSCH, Dennis ,  FUNK, Rüdiger ,  HILLEBRECHT, Annemarie

IPC: C08F2/10 ,  C08F20/04

公开(公告)号：EP2046839B1

公开(公告)日：2010-05-12

申请号：EP07787356.0

申请日：2007-07-11

Applicant: BASF SE

Inventor： STUEVEN, Uwe ,  WEISMANTEL, Matthias ,  HEIDE, Wilfried ,  KRÜGER, Marco ,  SEIDL, Volker ,  BLEI, Stefan ,  LÖSCH, Dennis ,  FUNK, Rüdiger ,  HILLEBRECHT, Annemarie

IPC: C08F2/10 ,  C08F20/04

CPC classification number: C08F222/10 ,  A61L15/24 ,  A61L15/60 ,  B29B9/10 ,  B29K2033/04 ,  B29K2995/0092 ,  C08F2/34 ,  C08F220/06 ,  C08F222/1006 ,  C08F222/385 ,  C08F2222/1026 ,  C08F2400/00 ,  C08F2500/24 ,  Y10T428/2982

Abstract: The invention relates to a method for producing water-absorbent polymer particles with a higher permeability by polymerising droplets of a monomer solution, containing monomers with acid groups, in a gas phase surrounding the droplets. The monomer solution contains polyvalent cations and the polymer particles have an average diameter of at least 150 µm.

Abstract translation: 一种用于通过聚合单体溶液的液滴，其包含单体带有酸基团，在气相周围液滴，worin单体溶液制备具有高渗透性的吸水性聚合物珠的方法包括多价阳离子和所述聚合物颗粒具有的平均直径 至少150微米。

公开(公告)号：EP1789456B1

公开(公告)日：2009-10-21

申请号：EP05771174.9

申请日：2005-08-09

Applicant: BASF SE

Inventor： LÖSCH, Dennis ,  WEIDL, Christian, Hubert ,  SEIDL, Volker ,  MORITZ, Hans-Ulrich

IPC: C08F2/48 ,  C08F2/10 ,  B01J2/00 ,  C08F220/20 ,  C08F220/06

CPC classification number: C08F2/00 ,  C08F2/04

Abstract: The invention relates to a method for producing polymers by dispersion polymerisation. According to said method, the monomer solution contains between 0.01 and 0.2 wt. %, in relation to the monomer, of at least one cross-linking agent. The invention also relates to the use of said polymers for thickening liquids and to a device for producing polymers by dispersion polymerisation.

公开(公告)号：EP1948698B1

公开(公告)日：2009-03-04

申请号：EP06807615.7

申请日：2006-10-27

Applicant: BASF SE

Inventor： LÖSCH, Dennis ,  SEIDL, Volker ,  RÜBENACKER, Martin

IPC: C08F2/10

CPC classification number: C08F226/02

Abstract: Process for production of polymer powders containing vinylformamide units via free-radical polymerization of an aqueous solution of N-vinylformamide and, if appropriate, other monomers and drying of the polymers, where an aqueous monomer solution which comprises N-vinylformamide and comprises at least one polymerization initiator is converted into spray or droplets to give an aerosol at the top of a heatable tower reactor and then the aerosol or the droplets is/are polymerized in an inert gas atmosphere to give a fine-particle solid, and the fine-particle polymer is discharged from the reactor.

公开(公告)号：EP1915404A1

公开(公告)日：2008-04-30

申请号：EP06764287.6

申请日：2006-08-01

Applicant: BASF SE

Inventor： LOTH, Wolfgang ,  SEIDL, Volker ,  BRUHNS, Stefan ,  HUNGENBERG, Klaus-Dieter ,  KOCH, Jürgen ,  SCHADE, Christian ,  SCHWITTAY, Claudius

IPC: C08F12/08 ,  C08F2/00

CPC classification number: C08F112/08 ,  C08F2/00

Abstract: The invention concerns a process for continuous production of styrene polymers by anionic spray polymerization characterized in that i) styrene and the initiator solution are mixed in a dynamic or static mixer and subsequently spray dispensed, ii) the droplets formed transition from the liquid monomeric state into the molten polymeric state during their free fall in the spray tower, iii) the melt droplets are collected as a melt at the foot of the tower, the melt having a monomer content of below 1%, preferably below 0.1% (

公开(公告)号：EP2046402B1

公开(公告)日：2015-09-16

申请号：EP07787411.3

申请日：2007-07-12

Applicant: BASF SE

Inventor： LÖSCH, Dennis ,  SEIDL, Volker ,  WEISMANTEL, Matthias

IPC: C08F2/00 ,  A61L15/22 ,  A61L15/60 ,  C08F2/10 ,  C08F4/34 ,  C08F20/04 ,  C08F4/00 ,  C08F220/06 ,  C08F222/10 ,  C08F4/04

CPC classification number: C08F2/10 ,  C08F2/00 ,  C08F2/50 ,  C08F4/00 ,  C08F4/04 ,  C08F4/34 ,  C08F220/06 ,  C08F222/1006

公开(公告)号：EP2046400B1

公开(公告)日：2015-09-09

申请号：EP07787228.1

申请日：2007-07-09

Applicant: BASF SE

Inventor： STUEVEN, Uwe ,  WEISMANTEL, Matthias ,  HEIDE, Wilfried ,  KRÜGER, Marco ,  SEIDL, Volker ,  BLEI, Stefan ,  LÖSCH, Dennis ,  FUNK, Rüdiger ,  HILLEBRECHT, Annemarie

IPC: C08F2/00 ,  A61L15/22 ,  A61L15/60 ,  C08F2/10 ,  C08F2/34 ,  C08F20/04 ,  C08J3/24 ,  C08F220/06 ,  C08F222/10

CPC classification number: C08F2/10 ,  C08F2/00 ,  C08F220/06 ,  C08F222/1006 ,  Y10T428/2982

公开(公告)号：EP2046401B1

公开(公告)日：2011-01-26

申请号：EP07787355.2

申请日：2007-07-11

Applicant: BASF SE

Inventor： STUEVEN, Uwe ,  WEISMANTEL, Matthias ,  HEIDE, Wilfried ,  KRÜGER, Marco ,  SEIDL, Volker ,  BLEI, Stefan ,  LÖSCH, Dennis ,  FUNK, Rüdiger ,  HILLEBRECHT, Annemarie

IPC: A61L15/22 ,  A61L15/60 ,  C08F2/10 ,  C08F20/04 ,  C08J3/24

CPC classification number: C08F2/10 ,  A61L15/60 ,  C08F2/00 ,  C08F220/06 ,  C08F222/1006 ,  Y10T428/2982

Abstract: The invention relates to a method for producing water-absorbing polymer particles with a higher permeability by polymerising droplets of a monomer solution in a gas phase surrounding the droplets. The monomer solution contains at least 0.5 wt %, in relation to the monomer, of a cross-linking agent and polymerisation takes place in the droplets in the homogeneous phase and the polymer particles have an average diameter of at least 150 µm.