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JPS5450090A - Preparation of vinyl chloride polymer - Google Patents

Preparation of vinyl chloride polymer

Info

Publication number
JPS5450090A
JPS5450090A JP11644677A JP11644677A JPS5450090A JP S5450090 A JPS5450090 A JP S5450090A JP 11644677 A JP11644677 A JP 11644677A JP 11644677 A JP11644677 A JP 11644677A JP S5450090 A JPS5450090 A JP S5450090A
Authority
JP
Japan
Prior art keywords
vinyl chloride
polymerization
monomer
reactor
vapor
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
JP11644677A
Other languages
Japanese (ja)
Other versions
JPS5812892B2 (en
Inventor
Yoshiyuki Hashiguchi
Yoshio Tomijima
Yasuhiro Nojima
Hisashi Morikawa
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.)
Kanegafuchi Chemical Industry Co Ltd
Original Assignee
Kanegafuchi Chemical Industry 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 Kanegafuchi Chemical Industry Co Ltd filed Critical Kanegafuchi Chemical Industry Co Ltd
Priority to JP52116446A priority Critical patent/JPS5812892B2/en
Publication of JPS5450090A publication Critical patent/JPS5450090A/en
Publication of JPS5812892B2 publication Critical patent/JPS5812892B2/en
Expired legal-status Critical Current

Links

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

Abstract

PURPOSE: To prepare a vinly chloride polymer having high bulkiness and suitable for extrusion molding, by the gas phase polymerization of vinyl chloride monomer in a polymerization reactor having specific structure, using a substrate material which coagulates in the vapor of vinyl chloride monomer.
CONSTITUTION: A substrate material having a particle size 0.01W10μ, made of vinyl chloride polymer having cohesiveness in the vapor of vinyl chloride monomer and prejpared by the suspension polymerization or emulsion polymerization of vinyl monomer in the presuence of an emulsifier, is introduced into a polymerization reactor furnished with a stirrer for the mechanical control of the coagulation of the polymer particles during polymerization. Liquid vinyl chloride containing a radical polymerization initiator is introduced into the reactor while slowly stirring the content, and after impregnating the polymerization initiator into the substrate material, the liquid vinyl chloride is removed. The temperature of the reaction system is kept at 40-70°C, vapor of vinyl chloride monomer (together with a monomer copolymerizable therewith) is introduced into the reactor, and the monomer is polymerized under a pressure lower than the saturated vapor pressure of vinyl chloride monomer at the polymerization temperature
COPYRIGHT: (C)1979,JPO&Japio
JP52116446A 1977-09-27 1977-09-27 Method for producing vinyl chloride polymer Expired JPS5812892B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP52116446A JPS5812892B2 (en) 1977-09-27 1977-09-27 Method for producing vinyl chloride polymer

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP52116446A JPS5812892B2 (en) 1977-09-27 1977-09-27 Method for producing vinyl chloride polymer

Publications (2)

Publication Number Publication Date
JPS5450090A true JPS5450090A (en) 1979-04-19
JPS5812892B2 JPS5812892B2 (en) 1983-03-10

Family

ID=14687305

Family Applications (1)

Application Number Title Priority Date Filing Date
JP52116446A Expired JPS5812892B2 (en) 1977-09-27 1977-09-27 Method for producing vinyl chloride polymer

Country Status (1)

Country Link
JP (1) JPS5812892B2 (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59218987A (en) * 1983-05-27 1984-12-10 Seiko Instr & Electronics Ltd Electronic timepiece with memo
JPS59218988A (en) * 1983-05-27 1984-12-10 Seiko Instr & Electronics Ltd Electronic timepiece with memo
JPH01206056A (en) * 1988-02-12 1989-08-18 Tokyo Electric Co Ltd Measuring label printer

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5097679A (en) * 1973-12-26 1975-08-02

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5097679A (en) * 1973-12-26 1975-08-02

Also Published As

Publication number Publication date
JPS5812892B2 (en) 1983-03-10

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