Title:
EMULSION POLYMERIZATION OF GRAFT COPOLYMER
Document Type and Number:
Japanese Patent JP2694936
Kind Code:
B2
Abstract:
PURPOSE: To provide a process for the emulsion polymerization of a graft copolymer having uniform, fine particles.
CONSTITUTION: A process for the emulsion polymerization of a graft copolymer comprises the steps of (a) obtaining an unsaturated polymer containing terminal or pendant polymerizable functionalities; (b) dissolving the resultant unsaturated polymer in an ethylenically unsaturated monomer in the presence of a surfactant in water to form an aqueous phase; (c) microfluidizing the aqueous phase of (b) to a size of less than 0.5 μm; and (d) subsequently graft polymerizing a monomer with the unsaturated polymer in the microfluidized aqueous phase using free radical polymerization techniques such that the graft polymerization reaction occurs within each micelle; thereby to obtain uniform particles of a predetermined particle size.
Inventors:
Paul Earl Madge
Sirisoma Alligator Tunga
Sirisoma Alligator Tunga
Application Number:
JP16907592A
Publication Date:
December 24, 1997
Filing Date:
June 26, 1992
Export Citation:
Assignee:
National Starch and Chemical Investment Holding Corporation
International Classes:
C08F2/22; C08F2/24; C08F290/00; C08F290/04; C08F299/00; (IPC1-7): C08F299/00; C08F2/22
Domestic Patent References:
| JP1318027A |
Attorney, Agent or Firm:
Takashi Ishida (2 outside)