JPS56807A - Preparation of vinyl polymer - Google Patents

Preparation of vinyl polymer

Info

Publication number
JPS56807A
JPS56807A JP7534379A JP7534379A JPS56807A JP S56807 A JPS56807 A JP S56807A JP 7534379 A JP7534379 A JP 7534379A JP 7534379 A JP7534379 A JP 7534379A JP S56807 A JPS56807 A JP S56807A
Authority
JP
Japan
Prior art keywords
polymerization
monomer
vinyl polymer
vinyl
balance
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
JP7534379A
Other languages
Japanese (ja)
Other versions
JPS6356245B2 (en
Inventor
Takashi Kokubo
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.)
Mitsubishi Kasei Polytec Co
Original Assignee
Mitsubishi Monsanto Chemical Co
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 Mitsubishi Monsanto Chemical Co filed Critical Mitsubishi Monsanto Chemical Co
Priority to JP7534379A priority Critical patent/JPS56807A/en
Publication of JPS56807A publication Critical patent/JPS56807A/en
Publication of JPS6356245B2 publication Critical patent/JPS6356245B2/ja
Granted legal-status Critical Current

Links

Abstract

PURPOSE: To prepare a vinyl polymer, in a desired form, having a narrow range of particle size distribution, by starting polymerization after the application of a high speed shearing force to a polymerization system, which contains a portion of a vinyl monomer, and by adding the balance of the monomer when a specified degree of polymerization is attained.
CONSTITUTION: Water, containing a dispersing agent, a 5C or higher oil-soluble polymerization initiator and 40W90%, based on the total amount to be charged, of a vinyl monomer, are poured into a preliminary agitation vessel, in which they are preliminarily dispersed by mild agitation, and the vinyl monomer is dispersed into a minute droplet of 0.5W70μ, by the application of a high-speed shearing force of the order of 105W106min-1. Then polymerization is started at 5W80°C, after the dispersion is transferred into a polymerizer, and when the perliminarily charged monomer is polymerized to an extent of polymerization degree 30W50%, the balance of the monomer is added, continuously, separately in a plurality of times, or at once, to accomplish polymerization. Thus a spherical vinyl polymer, having uniform particle size of 2W70μ, is obtained.
COPYRIGHT: (C)1981,JPO&Japio
JP7534379A 1979-06-15 1979-06-15 Preparation of vinyl polymer Granted JPS56807A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP7534379A JPS56807A (en) 1979-06-15 1979-06-15 Preparation of vinyl polymer

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP7534379A JPS56807A (en) 1979-06-15 1979-06-15 Preparation of vinyl polymer

Publications (2)

Publication Number Publication Date
JPS56807A true JPS56807A (en) 1981-01-07
JPS6356245B2 JPS6356245B2 (en) 1988-11-07

Family

ID=13573505

Family Applications (1)

Application Number Title Priority Date Filing Date
JP7534379A Granted JPS56807A (en) 1979-06-15 1979-06-15 Preparation of vinyl polymer

Country Status (1)

Country Link
JP (1) JPS56807A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61195101A (en) * 1985-02-26 1986-08-29 Shin Etsu Chem Co Ltd Polymerization of vinyl chloride monomer
JP2013537251A (en) * 2010-09-22 2013-09-30 フィンノリト ゲーエムベーハー ウント ツェーオー． カーゲー Method for producing polyvinyl chloride (PVC) resin
US9334344B2 (en) 2010-09-22 2016-05-10 Vinnolit Gmbh & Co. Kg Process for the production of a polyvinyl-chloride (PVC) resin

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3661881A (en) * 1970-09-03 1972-05-09 Dow Chemical Co Process for preparing vinyl chloride polymers of reduced porosity
GB1348426A (en) * 1970-07-25 1974-03-20 Basf Ag Suspension polymerisation of vinyl chloride
JPS5028588A (en) * 1973-06-08 1975-03-24
JPS5097680A (en) * 1973-12-26 1975-08-02

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1348426A (en) * 1970-07-25 1974-03-20 Basf Ag Suspension polymerisation of vinyl chloride
US3661881A (en) * 1970-09-03 1972-05-09 Dow Chemical Co Process for preparing vinyl chloride polymers of reduced porosity
JPS5028588A (en) * 1973-06-08 1975-03-24
JPS5097680A (en) * 1973-12-26 1975-08-02
JPS5097679A (en) * 1973-12-26 1975-08-02

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61195101A (en) * 1985-02-26 1986-08-29 Shin Etsu Chem Co Ltd Polymerization of vinyl chloride monomer
JP2013537251A (en) * 2010-09-22 2013-09-30 フィンノリト ゲーエムベーハー ウント ツェーオー． カーゲー Method for producing polyvinyl chloride (PVC) resin
US9334344B2 (en) 2010-09-22 2016-05-10 Vinnolit Gmbh & Co. Kg Process for the production of a polyvinyl-chloride (PVC) resin

Also Published As

Publication number Publication date
JPS6356245B2 (en) 1988-11-07

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