公开(公告)号：JP2009120838A

公开(公告)日：2009-06-04

申请号：JP2008291949

申请日：2008-11-14

Applicant: Basf Se ,  ビーエーエスエフ ソシエタス・ヨーロピアBasf Se

Inventor： LOSCH DENNIS ,  WIDMAIER RALF ,  SEIDL VOLKER ,  MORITZ HANS-ULRICH ,  ASIF KARIM ,  BIEDASEK SILKE

IPC: C08F2/46 ,  C08F2/04 ,  C08F26/10

CPC classification number: C08F2/00 ,  C08F26/10

Abstract: PROBLEM TO BE SOLVED: To provide an improved method for manufacturing a polyvinyl pyrrolidone.
SOLUTION: In the method for manufacturing the polyvinyl pyrrolidone by a polymerization initiated by a free radical in the presence of an initiator, the polymerization is carried out by spray polymerization or droplet polymerization. The initiator to be used is an organic or inorganic peroxide, a hydroperoxide, a persulfate, an azo compound, a photo-initiator or a redox initiator. The polymerization is carried out in a water solution at a polymerization temperature of 70-250°C by forming and spraying droplets in an inert gas flow or forming droplets and carrying out the polymerization in a spray tower.
COPYRIGHT: (C)2009,JPO&INPIT

Abstract translation: 要解决的问题：提供一种制造聚乙烯吡咯烷酮的改进方法。 解决方案：在通过在引发剂的存在下由自由基引发的聚合制造聚乙烯吡咯烷酮的方法中，聚合通过喷雾聚合或液滴聚合进行。 要使用的引发剂是有机或无机过氧化物，氢过氧化物，过硫酸盐，偶氮化合物，光引发剂或氧化还原引发剂。 通过在惰性气流中形成和喷雾液滴或形成液滴并在喷雾塔中进行聚合，聚合反应在聚合温度为70-250℃的水溶液中进行。 版权所有（C）2009，JPO＆INPIT

公开(公告)号：ES2433222T3

公开(公告)日：2013-12-10

申请号：ES09782661

申请日：2009-09-07

Applicant: BASF SE

Inventor： LABISCH OLIVER ,  ABBOUD MOHAMMED ,  BIEDASEK SILKE ,  SACK HEINRICH ,  NAUNDORF CORINNA ,  REIMER DIETER ,  URIBE AROCHA PAOLA ,  SEIDL VOLKER ,  MORITZ HANS-ULRICH ,  PAUER WERNER

IPC: C08F220/18 ,  B01J10/00 ,  B01J19/00 ,  C08F2/01 ,  C08F2/24 ,  C08F220/56

Abstract: Procedimiento para la obtención de partículas de polímero mediante polimerización de una emulsión, quecontiene al menos un monómero con insaturación etilénica, al menos un agente auxiliar dispersante, al menos uniniciador de polimerización y agua, estando dispersado en agua el monómero con insaturación etilénica,caracterizado porque la emulsión se dosifica en un espacio de reacción sólo en el caso de una conversión demonómeros con insaturación etilénica de un 1 a un 98 %, bajo formación de gotas discretas, y - atravesándose el reactor de polimerización por un gas, - calentándose previamente el gas a temperatura de reacción antes del reactor, - ascendiendo la temperatura de entrada de gas a 110-200ºC en el espacio de reacción, - ascendiendo la temperatura de salida de gas a 60 hasta 120ºC, y caracterizado porque el procedimiento depolimerización se lleva a cabo en dos etapas.

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

IPC: C08F2/10 ,  C08F20/04

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.

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.

公开(公告)号：DE502005008920D1

公开(公告)日：2010-03-11

申请号：DE502005008920

申请日：2005-08-09

Applicant: BASF SE

Inventor： LOESCH DENNIS ,  WEIDL CHRISTIAN HUBERT ,  SEIDL VOLKER

IPC: B01J19/26 ,  B01J2/00 ,  C08F2/10 ,  C08F220/06 ,  C08F226/10

Abstract: Process for producing polymers by spray polymerization wherein the monomer solution is dispersed in a hydrophobic liquid, the use of the polymers for thickening liquids and also an apparatus for producing polymers by spray polymerization.

公开(公告)号：DE102008043523A1

公开(公告)日：2009-05-20

申请号：DE102008043523

申请日：2008-11-06

Applicant: BASF SE

Inventor： LOESCH DENNIS ,  SEIDL VOLKER ,  WIDMAIER RALF ,  MORITZ HANS-ULRICH ,  KARIM ASIF ,  BIEDASEK SILKE

IPC: C08F26/10 ,  C08F2/00

Abstract: A process for preparing polyvinylpyrrolidones by free-radically initiated polymerization in the presence of an initiator found, which comprises performing the polymerization as a spray or droplet polymerization.

公开(公告)号：PT1791879E

公开(公告)日：2008-04-10

申请号：PT05783911

申请日：2005-09-06

Applicant: BASF SE

Inventor： BRODT GREGOR ,  MORITZ HANS-ULRICH ,  EHRENSTEIN MORITZ ,  KRUEGER MARCO ,  SEIDL VOLKER ,  WINTER DOMINIK ,  KARIM ASIF

IPC: C08G12/38 ,  B01J2/04

公开(公告)号：BRPI0714444A2

公开(公告)日：2013-03-19

申请号：BRPI0714444

申请日：2007-07-12

Applicant: BASF SE

Inventor： STUEVEN UWE ,  WEISMANTEL MATTHIAS ,  HEIDE WILFRIED ,  KRUEGER MARCO ,  SEIDL VOLKER ,  BLEI STEFAN ,  LOESCH DENNIS ,  FUNK RUEDIGER ,  HILLEBRECHT ANNEMARIE

IPC: A61L15/22 ,  A61L15/60 ,  C08F2/10 ,  C08F2/34 ,  C08F20/04 ,  C08J3/24 ,  C08K3/00

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 a water-insoluble inorganic salt is suspended in the monomer solution and the polymer beads have a mean diameter of at least 150 μm.

公开(公告)号：AT496638T

公开(公告)日：2011-02-15

申请号：AT07787355

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

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

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.

公开(公告)号：ZA200901111B

公开(公告)日：2010-04-28

申请号：ZA200901111

申请日：2009-02-17

Applicant: BASF SE

Inventor： WEISMANTEL MATTHIAS ,  HEIDE WILFRIED ,  KRUEGER MARCO ,  SEIDL VOLKER ,  LOESCH DENNIS ,  FUNK RUEDIGER ,  STUEVEN UWE ,  BLEI STEFAN ,  HILLEBRECHT ANNEMARIE

IPC: A61L20100101 ,  C08F20100101 ,  C08J20100101

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.