JPS56118407A - Suspension polymerization method of vinyl chloride - Google Patents

Suspension polymerization method of vinyl chloride

Info

Publication number
JPS56118407A
JPS56118407A JP2222480A JP2222480A JPS56118407A JP S56118407 A JPS56118407 A JP S56118407A JP 2222480 A JP2222480 A JP 2222480A JP 2222480 A JP2222480 A JP 2222480A JP S56118407 A JPS56118407 A JP S56118407A
Authority
JP
Japan
Prior art keywords
polymn
polymerizer
vinyl chloride
reaction
polymerizers
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
JP2222480A
Other languages
Japanese (ja)
Inventor
Yukiya Sakamoto
Yasushi Isobe
Takaharu Morita
Hideo Hayashi
Sukeyoshi Suzuki
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.)
Toagosei Co Ltd
Original Assignee
Toagosei 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 Toagosei Co Ltd filed Critical Toagosei Co Ltd
Priority to JP2222480A priority Critical patent/JPS56118407A/en
Publication of JPS56118407A publication Critical patent/JPS56118407A/en
Pending 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 make it possible to carry out a continuous suspension polymn. of vinyl chloride, by a method wherein a scale-preventing agent-contg. vinyl chloride raw material to be polymerized is introduced into the first polymerizer, and subjected to a suspension polymn. reaction at an elevated reaction temperature higher than those of the second polymerizer connected to the first polymerizer and succeeding polymerizers.
CONSTITUTION: In a process for the suspension polymn. of vinyl chloride monomer alone or a vinyl monomer mixt. composed mainly of vinyl chloride in an aq. medium contg. a suspending agent and a polymn. initiator, a plurality of polymerizers are used which are successively connected to each other. A raw material for polymn., to which a scale-preventing agent is added, is introduced into the first polymerizer 1, where a polymn, reaction is carried out at a temp. whicn is 2W10°C higher than that at which the desired weight-average polymn. degree can be obtd. unitl the reactants pass through a sticky state. Then the reaction suspension is in turn transferred to succeeding polymerizers intermittently or continuously. In the second polymerizer 2 and the suceeding polymerizers, the polymn. is carried out at a reaction temp. lower than that of the first polymerizer.
COPYRIGHT: (C)1981,JPO&Japio
JP2222480A 1980-02-26 1980-02-26 Suspension polymerization method of vinyl chloride Pending JPS56118407A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2222480A JPS56118407A (en) 1980-02-26 1980-02-26 Suspension polymerization method of vinyl chloride

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2222480A JPS56118407A (en) 1980-02-26 1980-02-26 Suspension polymerization method of vinyl chloride

Publications (1)

Publication Number Publication Date
JPS56118407A true JPS56118407A (en) 1981-09-17

Family

ID=12076824

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2222480A Pending JPS56118407A (en) 1980-02-26 1980-02-26 Suspension polymerization method of vinyl chloride

Country Status (1)

Country Link
JP (1) JPS56118407A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4622245A (en) * 1983-10-31 1986-11-11 Shin-Etsu Chemical Co., Ltd. Method for preventing polymer scale deposition in the polymerization of an ethylenically unsaturated monomer
JP2009530463A (en) * 2006-03-24 2009-08-27 アクゾ ノーベル ナムローゼ フェンノートシャップ Continuous production method of vinyl chloride (co) polymer
USRE45940E1 (en) 2006-03-24 2016-03-22 Akzo Nobel N.V. Continuous process for the production of vinyl chloride (co)polymers

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4622245A (en) * 1983-10-31 1986-11-11 Shin-Etsu Chemical Co., Ltd. Method for preventing polymer scale deposition in the polymerization of an ethylenically unsaturated monomer
JP2009530463A (en) * 2006-03-24 2009-08-27 アクゾ ノーベル ナムローゼ フェンノートシャップ Continuous production method of vinyl chloride (co) polymer
USRE45940E1 (en) 2006-03-24 2016-03-22 Akzo Nobel N.V. Continuous process for the production of vinyl chloride (co)polymers

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