Document Type and Number:
Japanese Patent JPH0128761
Kind Code:
B2
Abstract:
Spheroidal polymer beads having a uniform size are prepared by polymerizing uniformly sized monomer droplets formed by the vibratory excitation of a laminar jet of monomeric material flowing in a continuous liquid medium containing a suitable suspending agent. For example, a laminar jet of a monomer mixture comprising a monovinyl aromatic such as styrene, a polyvinyl aromatic such as divinylbenzene and a polymerization initiator are subjected to vibratory excitation and the resulting monomer droplets polymerized to yield copolymer beads having a narrow particle size distribution. These copolymer beads can be employed to prepare ion-exchange resins having superior properties, particularly in continuous ion-exchange operations.
Inventors:
EDOWAADO AARU CHIMU
Application Number:
JP17217581A
Publication Date:
June 05, 1989
Filing Date:
October 29, 1981
Export Citation:
Assignee:
DOW CHEMICAL CO
International Classes:
C08F2/00; C08F2/18; C08F2/56; C08F212/36
Next Patent: JPH0128762