JPS56103206A - Polymerizing method of styrene monomer - Google Patents

Polymerizing method of styrene monomer

Info

Publication number
JPS56103206A
JPS56103206A JP551880A JP551880A JPS56103206A JP S56103206 A JPS56103206 A JP S56103206A JP 551880 A JP551880 A JP 551880A JP 551880 A JP551880 A JP 551880A JP S56103206 A JPS56103206 A JP S56103206A
Authority
JP
Japan
Prior art keywords
monomer
polymerizer
thiocyanate
aqueous medium
medium containing
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
JP551880A
Other languages
Japanese (ja)
Inventor
Hajime Kitamura
Toshihide Shimizu
Ichiro Kaneko
Ken Ito
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Shin Etsu Chemical Co Ltd
Original Assignee
Shin Etsu Chemical Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Shin Etsu Chemical Co Ltd filed Critical Shin Etsu Chemical Co Ltd
Priority to JP551880A priority Critical patent/JPS56103206A/en
Publication of JPS56103206A publication Critical patent/JPS56103206A/en
Pending legal-status Critical Current

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  • Polymerisation Methods In General (AREA)

Abstract

PURPOSE: To obtain a high-quality polymer with a greatly reduced amount of scale deposit, by polymerizing the titled monomer in an aqueous medium containing a dispersion assistant, a polymerization initiator and a small amount of a thiocyanate in a polymerizer coated with a scale deposition inhibitor.
CONSTITUTION: Styrene monomer or its mixture with a monomer copolymerizable therewith, e.g. acrylonitrile, is polymerized in an aqueous medium containing a dispersion assistant, e.g. partly saponified polyvinyl alcohol, and a polymerization initiator, e.g. azobisisobutyronitrile, in a polymerizer in which the inner wall and a part in contact with the monomer are previously coated with a scale deposition inhibitor, e.g. consisting of a dye and/or pigment, in the presence of a thiocyanate in an amount of 1ppm or more based on the charged monomer in the polymerization system to give the aimed polymer. Preferably, a monomer having a solubility in water of 0.5wt% or less at 20°C is used as a comonomer.
COPYRIGHT: (C)1981,JPO&Japio
JP551880A 1980-01-21 1980-01-21 Polymerizing method of styrene monomer Pending JPS56103206A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP551880A JPS56103206A (en) 1980-01-21 1980-01-21 Polymerizing method of styrene monomer

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP551880A JPS56103206A (en) 1980-01-21 1980-01-21 Polymerizing method of styrene monomer

Publications (1)

Publication Number Publication Date
JPS56103206A true JPS56103206A (en) 1981-08-18

Family

ID=11613402

Family Applications (1)

Application Number Title Priority Date Filing Date
JP551880A Pending JPS56103206A (en) 1980-01-21 1980-01-21 Polymerizing method of styrene monomer

Country Status (1)

Country Link
JP (1) JPS56103206A (en)

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