JPS5698207A - Polymerization of vinyl chloride monomer - Google Patents

Polymerization of vinyl chloride monomer

Info

Publication number
JPS5698207A
JPS5698207A JP43380A JP43380A JPS5698207A JP S5698207 A JPS5698207 A JP S5698207A JP 43380 A JP43380 A JP 43380A JP 43380 A JP43380 A JP 43380A JP S5698207 A JPS5698207 A JP S5698207A
Authority
JP
Japan
Prior art keywords
polymerization
polymerizer
vinyl chloride
inner walls
water
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.)
Granted
Application number
JP43380A
Other languages
Japanese (ja)
Other versions
JPS5931522B2 (en
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 JP43380A priority Critical patent/JPS5931522B2/en
Publication of JPS5698207A publication Critical patent/JPS5698207A/en
Publication of JPS5931522B2 publication Critical patent/JPS5931522B2/en
Expired legal-status Critical Current

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  • Polymerisation Methods In General (AREA)
  • Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications (AREA)

Abstract

PURPOSE: To prevent the deposition of polymer scale to the inner walls of a polymerizer, completely, by coating the inner walls of the polymerizer with a specific compound, using an oil-soluble peroxide as a polymerization catalyst, and adding a water-soluble sulfur compound to the polymerization system.
CONSTITUTION: In the suspension polymerization of vinyl chloride or a monomer mixture composed mainly of vinyl chloride in an aqueous medium, the deposition of polymer scale to the polymerizer is prevented by (A) coating the surface to which the monomer is to be contacted, e.g. the inner walls of the polymerizer, etc. with an aqueous solution containing an alkali metal salt, ammonium salt, etc. of a sulfonic acid-type or carboxylic acid-type dye, (B) using an oil-soluble peroxide catalyst having a solubility in water of ≥0.2wt% (20°C) as a polymerization initiator, and (C) adding ≥1ppm, based on the charged monomer, of a water- soluble sulfur-containing organic compound to the polymerization system.
EFFECT: The process affords a high-quality vinyl chloride polymer having excellent heat stability exhibiting no first discoloration in molding.
COPYRIGHT: (C)1981,JPO&Japio
JP43380A 1980-01-07 1980-01-07 Polymerization method of vinyl chloride monomer Expired JPS5931522B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP43380A JPS5931522B2 (en) 1980-01-07 1980-01-07 Polymerization method of vinyl chloride monomer

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP43380A JPS5931522B2 (en) 1980-01-07 1980-01-07 Polymerization method of vinyl chloride monomer

Publications (2)

Publication Number Publication Date
JPS5698207A true JPS5698207A (en) 1981-08-07
JPS5931522B2 JPS5931522B2 (en) 1984-08-02

Family

ID=11473672

Family Applications (1)

Application Number Title Priority Date Filing Date
JP43380A Expired JPS5931522B2 (en) 1980-01-07 1980-01-07 Polymerization method of vinyl chloride monomer

Country Status (1)

Country Link
JP (1) JPS5931522B2 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57170902A (en) * 1981-04-14 1982-10-21 Shin Etsu Chem Co Ltd Polymerization of vinyl monomer
JPS5978210A (en) * 1982-10-27 1984-05-07 Toyo Soda Mfg Co Ltd Nonaqueous polymerization of vinyl chloride

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57170902A (en) * 1981-04-14 1982-10-21 Shin Etsu Chem Co Ltd Polymerization of vinyl monomer
JPS638961B2 (en) * 1981-04-14 1988-02-25 Shinetsu Chem Ind Co
JPS5978210A (en) * 1982-10-27 1984-05-07 Toyo Soda Mfg Co Ltd Nonaqueous polymerization of vinyl chloride
JPH033681B2 (en) * 1982-10-27 1991-01-21 Tosoh Corp

Also Published As

Publication number Publication date
JPS5931522B2 (en) 1984-08-02

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