公开(公告)号：CA1286444C

公开(公告)日：1991-07-16

申请号：CA534068

申请日：1987-04-07

Applicant: HEIDE WILFRIED

Inventor： HEIDE WILFRIED ,  HARTMANN HEINRICH ,  VAMVAKARIS CHRISTOS

IPC: C08F2/32

Abstract: Bead polymers are prepared by reverse suspension polymerization by a process in which an aqueous solution of water-soluble ethylenically unsaturated monomers are polymerized in an aliphatic hydrocarbon using an inorganic suspending agent based on a modified finely divided mineral and, in addition, from 0.1 to 5% by weight, based on the monomers used, of a nonionic surfactant, in the presence of a polymerization initiator, with the formation of a water-in-oil polymer suspension.