公开(公告)号：EP2139842A1

公开(公告)日：2010-01-06

申请号：EP08735454.4

申请日：2008-03-20

Applicant: BASF SE

Inventor： FUNK, Rüdiger ,  HEIDE, Wilfried ,  WEISMANTEL, Matthias ,  HAMMON, Ulrich ,  BENNETT, Andrea, Karen

IPC: C07C57/075 ,  C07C57/04

CPC classification number: C07C51/412 ,  C07C51/50 ,  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.

公开(公告)号：EP2104686A1

公开(公告)日：2009-09-30

申请号：EP07848074.6

申请日：2007-12-12

Applicant: BASF SE

Inventor： STUEVEN, Uwe ,  FUNK, Rüdiger ,  WEISMANTEL, Matthias ,  HEIDE, Wilfried ,  KRÜGER, Marco

IPC: C08F2/00 ,  C08F2/10 ,  C08F2/16 ,  C08F2/18 ,  A61L15/60

Abstract: The invention relates to a method for producing water-absorbent polymer particles by the polymerisation of droplets of a monomer solution in a gaseous phase that surrounds said droplets and by the subsequent cross-linking of the polymer particles. According to the invention, the polymer particles that have been subsequently cross-linked are at least partially coated.

Abstract translation: 本发明涉及一种通过围绕所述液滴的气相中的单体溶液的液滴的聚合和随后的聚合物颗粒的交联而生产吸水性聚合物颗粒的方法。 根据本发明，随后交联的聚合物颗粒至少部分被涂覆。

公开(公告)号：EP2104601A1

公开(公告)日：2009-09-30

申请号：EP08706983.7

申请日：2008-01-10

Applicant: BASF SE

Inventor： WEISMANTEL, Matthias ,  FUNK, Rüdiger ,  BLAIR, Leigh, R. ,  HEITZHAUS, Kevin, D. ,  STOREY, Bruce

IPC: B29B9/04 ,  B26D1/34 ,  B01J19/22

CPC classification number: B26D1/345 ,  B01J19/22 ,  C08F2/01 ,  Y10T83/04 ,  Y10T83/9394

Abstract: The invention relates to the production of superabsorbent polymers on a continuous belt reactor, comprising at least one rotating knife that cuts the formed polymer gel at the end of the continuous belt reactor, wherein the length of the cutting edge is at least 1 cm and the cutting edge is non-parallel to the rotation axis.

Abstract translation: 本发明涉及在连续带式反应器上生产超吸收性聚合物，其包括至少一个旋转刀，所述旋转刀在连续带式反应器的端部切割形成的聚合物凝胶，其中切削刃的长度为至少1cm，并且 切削刃不平行于旋转轴线。

公开(公告)号：EP2046400A1

公开(公告)日：2009-04-15

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: A61L15/22 ,  A61L15/60 ,  C08F2/10 ,  C08F2/34 ,  C08F20/04 ,  C08J3/24

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

Abstract: The invention relates to method for producing post-cured water-absorbent polymer particles with a higher absorption by polymerising droplets of a monomer solution in a gas phase surrounding the droplets. The solids content of the monomer solution is at least 35 wt% and the polymer particles have an average diameter of at least 150 µm.

公开(公告)号：EP1926756A1

公开(公告)日：2008-06-04

申请号：EP06793088.3

申请日：2006-08-31

Applicant: BASF SE

Inventor： WEISMANTEL, Matthias ,  FUNK, Rüdiger ,  VAN ESBROECK, Dominicus ,  POSSEMIERS, Karl, J. ,  DE KAEY, Ronny ,  VAN MIERT, leo

IPC: C08F2/38 ,  B01J19/00

CPC classification number: C08F2/01 ,  B01J19/2405 ,  B01J19/26 ,  B01J2219/00164 ,  B01J2219/182 ,  B01J2219/1943 ,  B01J2219/1946 ,  C08F2/42 ,  C08F220/06

Abstract: The invention relates to a method for producing water-absorbing polymer particles comprising rendering monomer solutions inert. The invention is characterized in that the monomer solution, based on the dissolved monomer, comprises between 0.001 and 0.016 % by weight of at least one polymerization inhibitor and at least 50 % by volume of the inert gas used for rendering the monomer solution inert are transferred to the polymerization reactor together with the monomer solution that has been rendered inert. The invention also relates to devices for carrying out said method.

Abstract translation: 本发明涉及一种制备吸水性聚合物颗粒的方法，其包括使单体溶液呈惰性。 本发明的特征在于基于溶解的单体的单体溶液包含0.001至0.016重量％的至少一种阻聚剂和至少50体积％的用于使单体溶液惰性的惰性气体转移 与已变成惰性的单体溶液一起加入到聚合反应器中。 本发明还涉及用于执行所述方法的设备。

公开(公告)号：EP1924609A1

公开(公告)日：2008-05-28

申请号：EP06792969.5

申请日：2006-08-23

Applicant: BASF SE

Inventor： FUNK, Rüdiger ,  WEISMANTEL, Matthias ,  STUEVEN, Uwe

IPC: C08F2/00 ,  C08K5/00 ,  C08F4/40 ,  A61L15/24 ,  A61L15/60 ,  B01J14/00 ,  B01J19/00

CPC classification number: C08F2/10 ,  C08F4/40 ,  C08K5/1535 ,  C08L33/02

Abstract: The invention relates to a method for producing water-absorbing polymers by polymerization of a monomer solution, the oxygen content of the monomer solution prior to polymerization being reduced by adding at least one reducing agent.

Abstract translation: 本发明涉及通过聚合单体溶液制备吸水性聚合物的方法，通过添加至少一种还原剂来降低聚合之前单体溶液的氧含量。

公开(公告)号：EP3039044B1

公开(公告)日：2020-02-12

申请号：EP14711267.6

申请日：2014-03-20

Applicant: BASF SE

Inventor： SCHRÖDER, Ulrich ,  FUNK, Rüdiger ,  LOUDEN, John Joseph

IPC: C08F220/06 ,  A61L15/22

公开(公告)号：EP1940766B2

公开(公告)日：2019-09-04

申请号：EP06793087.5

申请日：2006-08-31

Applicant: BASF SE

Inventor： MARCO, Michael ,  WEISMANTEL, Matthias ,  POSSEMIERS, Karl, J. ,  MEES, Filip ,  DE KAEY, Ronny ,  FUNK, Rüdiger

IPC: C07C51/41 ,  C07C57/04 ,  B01J14/00 ,  C08F20/06 ,  C08F220/06

公开(公告)号：EP2714103B1

公开(公告)日：2019-08-21

申请号：EP12721528.3

申请日：2012-05-16

Applicant: BASF SE

Inventor： FUNK, Rüdiger ,  PFEIFFER, Thomas ,  POSSEMIERS, Karl J.

IPC: A61L15/22 ,  A61L15/60 ,  C08F2/48 ,  C08L33/02 ,  C08F2/18 ,  C08F220/06

公开(公告)号：EP2890722B1

公开(公告)日：2018-11-21

申请号：EP13753314.7

申请日：2013-08-26

Applicant: BASF SE

Inventor： PETERSON, Monte ,  GUENTZEL, John Perry ,  BOYKIN, Gregory ,  VAN MIERT, Leo ,  CALLOT, Rene ,  STEPHAN, Oskar ,  FUNK, Rüdiger ,  WEISMANTEL, Matthias

IPC: C08F2/10

CPC classification number: B01J20/261 ,  A61L15/60 ,  B01J2220/68 ,  C08F2/10 ,  C08F6/008 ,  C08J3/245 ,  C08J2333/02 ,  C08L33/02

Abstract: The invention relates to a process for producing water-absorbing polymer particles, comprising polymerization, drying the resulting polymer gel on a through circulation belt dryer, crushing the dried polymer gel, pre-grinding, separating of incompletely dried particles with a perforated plate, grinding and classifying the resulting polymer particles.