公开(公告)号：DE102006055473A1

公开(公告)日：2007-07-05

申请号：DE102006055473

申请日：2006-11-24

Applicant: BASF AG

Inventor： GUTZLER RAINER ,  NEUTZNER JOSEF ,  MATHAUER KLEMENS ,  DOBRAWA RAINER ,  LANGE RONALD FRANS MARIA

IPC: C08F290/08 ,  C08F8/12 ,  C08F283/06

Abstract: Preparation of graft polymers based on polyether and vinyl ester comprises reaction of polyether (5-25 wt.%) (a), vinyl ester (b) (40-95 wt.%) and further hydrophobic monomers (c) (0-50 wt.%) in the presence of an organic solvent and a radical-forming polymerization initiator under reflux conditions, where after starting the polymerization, the temperature is controlled in such a way that the external temperature of the reactor is at least 3[deg] C lower than the internal temperature of the reactor.