Title:
SUSPENSION POLYMERIZATION
Document Type and Number:
Japanese Patent JPH03247601
Kind Code:
A
Abstract:
PURPOSE:To obtain a polymer with both controlled granular size and its distribution by feeding a granulator with a monomer disperse phase and a suspension stabilizer-contg. aqueous continuous phase from mutually separate tanks at a controlled ratio into a suspension containing droplets of specified size, which is then polymerized in a polymerization tank. CONSTITUTION:An addition-polymerizable monomer composition is made into a disperse phase in a disperse phase tank 2, while a polymerization auxiliary such as suspension stabilizer is made into an aqueous continuous phase in a continuous phase tank 1. Both the phases are continuously fed, respectively, through two lines independent of each other, from a disperse phase feed port 9 and a continuous phase feed port 10, at a controlled ratio, into the shear force-generating field 11 in a granulator 5, where these phases are made into a suspension through shear force which is then separated and removed through a gap 15 of specified size provided within the field 11 into a suspension made up of a group of polymerizable droplets with a specified size, and this suspension is fed through a delivery port 16 into a polymerization tank 3 equipped with a heating jacket 7 where the polymerization is completed, thus producing the objective polymer.
Inventors:
KAMIYAMA MASAFUMI
YANO HARUHIKO
TSUCHIDA MINORU
OSHIMA EIJI
YANO HARUHIKO
TSUCHIDA MINORU
OSHIMA EIJI
Application Number:
JP4398090A
Publication Date:
November 05, 1991
Filing Date:
February 23, 1990
Export Citation:
Assignee:
TOMOEGAWA PAPER CO LTD
International Classes:
C08F2/00; C08F2/18; (IPC1-7): C08F2/00; C08F2/18
Attorney, Agent or Firm:
Takeuchi Mamoru