Title:
METHOD FOR POLYMERIZATION OF VINTL MONOMER
Document Type and Number:
Japanese Patent JP3693596
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To provide a method for polymerization of an acrylic acid ester- containing vinyl monomer with which a high-quality polymer can be obtained in excellent productivity, while preventing adhesion of a polymer scale on a sealing part of a stirring shaft in polymerization equipment without causing a mechanical damage.
SOLUTION: This method for vinyl monomer polymerization comprises polymerizing a vinyl monomer containing ≥0.1 mass % of an acrylic acid ester in the polymerization equipment with a stirrer while stirring and the vinyl monomer is polymerized with changing a hindered phenol from the lower part of a sealing unit of the stirring shaft.
Inventors:
Hirotoshi Mizoda
Mitsuhiro Matsuo
Mitsuhiro Matsuo
Application Number:
JP2001181817A
Publication Date:
September 07, 2005
Filing Date:
June 15, 2001
Export Citation:
Assignee:
Mitsubishi Rayon Co., Ltd.
International Classes:
C08F2/00; (IPC1-7): C08F2/00
Domestic Patent References:
| JP1172401A | ||||
| JP2091102A |
Attorney, Agent or Firm:
Nobuyuki Kaneda
Katsuhiro Ito
Ishibashi Masayuki
Katsuhiro Ito
Ishibashi Masayuki
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