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Title:
PREVENTION OF DEPOSITION OF POLYMER SCALE AND PREVENTIVE AGAINST DEPOSITION OF POLYMER SCALE
Document Type and Number:
Japanese Patent JPH03115305
Kind Code:
A
Abstract:
PURPOSE:To obtain a polymer while preventing the deposition of polymer scale on the inside wall of the polymerizer by forming a coating film containing a water-soluble cationic nitrogeneous polymer compound and a water-soluble anionic polymer compound on the inside wall before polymerizing an ethylenically unsaturated monomer in the polymerizer. CONSTITUTION:A colorless polymer is obtained by polymerizing an ethylenically unsaturated monomer [e.g. vinyl chloride or (meth)acrylic acid] in a polymerizer having an inside wall covered with a coating film of water-soluble cationic nitrogeneous polymer compound (desirably polyvinylpyrrolidone) and a water-soluble anionic polymer compound (desirably pectin, carrageenan or alginic acid).

Inventors:
SHIMIZU TOSHIHIDE
UENO SUSUMU
KANEKO ICHIRO
WATANABE MIKIO
Application Number:
JP13567690A
Publication Date:
May 16, 1991
Filing Date:
May 25, 1990
Export Citation:
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Assignee:
SHINETSU CHEMICAL CO
International Classes:
C08F2/00; (IPC1-7): C08F2/00
Domestic Patent References:
JPS61115903A1986-06-03
JPS56112903A1981-09-05
JPS54162782A1979-12-24
JPS5420089A1979-02-15
JPS5051185A1975-05-07
JPH01217016A1989-08-30
Attorney, Agent or Firm:
Shuji Iwamiya