公开(公告)号：MY148533A

公开(公告)日：2013-04-30

申请号：MYPI20090216

申请日：2007-07-11

Applicant: BASF SE

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

IPC: B32B1/00

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 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 ?M.

公开(公告)号：MY150001A

公开(公告)日：2013-11-15

申请号：MYPI20090215

申请日：2007-07-09

Applicant: BASF SE

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

IPC: C08F20/06

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.

公开(公告)号：MY148330A

公开(公告)日：2013-03-29

申请号：MYPI20091744

申请日：2007-10-29

Applicant: BASF SE

Inventor： DENNIS LOESCH ,  MARCO KRUEGER ,  MATTHIAS WEISMANTEL ,  WILFRIED HEIDE

IPC: C08F2/00

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.