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.

公开(公告)号：EP2978462A1

公开(公告)日：2016-02-03

申请号：EP14711490.4

申请日：2014-03-18

Applicant: BASF SE

Inventor： POSSEMIERS, Karl ,  PFEIFFER, Thomas ,  WEISMANTEL, Matthias ,  FUNK, Rüdiger ,  PETERSON, Monte ,  SERNEELS, Sven ,  JOHNSON, Jeffrey ,  DE KAEY, Ronny

IPC: A61L15/22 ,  B07B1/46 ,  C08J3/24 ,  C08J11/04 ,  C08L33/02 ,  B07B9/00 ,  B02C23/08

CPC classification number: B07B1/46 ,  A61L15/60 ,  B07B9/00 ,  B07B2201/04 ,  C08F220/06 ,  C08J3/12 ,  C08J3/245 ,  C08J2333/02 ,  C08L33/02 ,  G01N15/0272 ,  C08F2222/1013

Abstract: A process for classifying water-absorbing polymer particles, wherein screens having different mesh sizes are used before and after surface postcrosslinking to remove the undersize (fines).

Abstract translation: 一种吸水聚合物颗粒分级方法，其中在表面后交联之前和之后使用具有不同网眼尺寸的筛网以去除小尺寸（细粒）。

公开(公告)号：EP2890722A1

公开(公告)日：2015-07-08

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.

Abstract translation: 本发明涉及一种生产吸水聚合物颗粒的方法，包括聚合，在通过的循环带式干燥器上干燥所得聚合物凝胶，压碎干燥的聚合物凝胶，预先研磨，用多孔板分离未完全干燥的颗粒，研磨 并分级所得聚合物颗粒。

公开(公告)号：EP2890411A1

公开(公告)日：2015-07-08

申请号：EP13747657.8

申请日：2013-08-05

Applicant: BASF SE

Inventor： POSSEMIERS, Karl ,  STEPHAN, Oskar ,  FUNK, Rüdiger ,  WEISMANTEL, Matthias ,  PETERSON, Monte ,  GUENTZEL, John Perry ,  MARTIN, Justin ,  MEES, Filip ,  VAN ESBROECK, Dominicus ,  VAN MIERT, Leo

IPC: A61L15/22 ,  A61L15/60 ,  C08J3/24

CPC classification number: B01J20/3078 ,  B01J19/0053 ,  B01J19/1862 ,  C08J3/245 ,  C08J3/247 ,  C08J2333/02

Abstract: The invention relates to a process for producing water-absorbing polymer particles, comprising thermal postcrosslinking in a contact dryer having external heated outer surfaces.

Abstract translation: 本发明涉及一种生产吸水聚合物颗粒的方法，包括在具有外部加热外表面的接触式干燥器中热后交联。

公开(公告)号：EP2888296A1

公开(公告)日：2015-07-01

申请号：EP13752603.4

申请日：2013-08-12

Applicant: BASF SE

Inventor： PETERSON, Monte ,  DE KAEY, Ronny ,  VAN MIERT, Leo ,  STEPHAN, Oskar ,  FUNK, Rüdiger ,  WEISMANTEL, Matthias ,  VAN ESBROECK, Dominicus ,  VAN DYCK, Frans

IPC: C08F2/10

CPC classification number: B65B1/04 ,  C08F2/10 ,  C08F6/008 ,  C08F20/06 ,  C08F220/06 ,  C08F222/1006 ,  C08J3/00 ,  C08J2333/02 ,  E04H7/22 ,  Y10T428/2982 ,  C08L33/02

Abstract: The invention relates to a process for producing water-absorbing polymer particles, comprising handling water-absorbing polymer particles in intermediate silos, storage silos and/or big bag filing stations that are connected with vent lines having a mitered joint.

公开(公告)号：EP2846903A1

公开(公告)日：2015-03-18

申请号：EP13721311.2

申请日：2013-04-26

Applicant: BASF SE

Inventor： STEPHAN, Oskar ,  PETERSON, Monte ,  POSSEMIERS, Karl J. ,  LIPPENS, Steven

IPC: B01F7/04 ,  B01F15/06 ,  C08F2/01 ,  G05D15/00

CPC classification number: C08F2/01 ,  B01F7/041 ,  B01F15/065 ,  B01F15/068 ,  B01F2015/062 ,  B01F2215/0472 ,  G05D15/00 ,  G05D23/026 ,  Y10S526/918 ,  Y10S526/93

Abstract: The invention relates to a method for operating a kneader-mixer (1) comprising one or more shafts (2, 3) provided with kneading bars (4) on the surfaces thereof and which are surrounded by a covering (6). Said method comprises the following steps: • (a) introducing starting material to a supply point (10) of the kneader mixer (1), • (b) reacting the starting material in an exothermic reaction, a continuously kneadable intermediate product being initially formed during the reaction • (c) tearing and comminuting the continuously kneadable intermediate product in order to form a product, the exothermic reaction optionally continuing during the tearing and comminuting, • (d) extracting the product at an extraction point (11) of the kneader mixer, at least one of the shafts (2, 3) and/or the covering being heated, when the kneader-mixer is in operation, to a temperature higher than 20 °C.