JPS5626908A - Polymerization of vinyl chloride monomer - Google Patents

Polymerization of vinyl chloride monomer

Info

Publication number
JPS5626908A
JPS5626908A JP10163379A JP10163379A JPS5626908A JP S5626908 A JPS5626908 A JP S5626908A JP 10163379 A JP10163379 A JP 10163379A JP 10163379 A JP10163379 A JP 10163379A JP S5626908 A JPS5626908 A JP S5626908A
Authority
JP
Japan
Prior art keywords
polymerization
vinyl chloride
polymerizer
foam
monomer
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
JP10163379A
Other languages
Japanese (ja)
Other versions
JPS6042804B2 (en
Inventor
Shunichi Koyanagi
Hajime Kitamura
Koji Azuma
Yoshitaka Okuno
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 JP10163379A priority Critical patent/JPS6042804B2/en
Priority to GB8024150A priority patent/GB2055861B/en
Priority to GR62521A priority patent/GR69338B/el
Priority to IN849/CAL/80A priority patent/IN153574B/en
Priority to DE19803028753 priority patent/DE3028753A1/en
Priority to PL22610280A priority patent/PL226102A1/xx
Priority to PT7166780A priority patent/PT71667B/en
Priority to MX18348680A priority patent/MX156439A/en
Priority to BR8004967A priority patent/BR8004967A/en
Priority to FR8017519A priority patent/FR2463154B1/en
Publication of JPS5626908A publication Critical patent/JPS5626908A/en
Publication of JPS6042804B2 publication Critical patent/JPS6042804B2/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
    • C08F6/00—Post-polymerisation treatments
    • C08F6/001—Removal of residual monomers by physical means
    • C08F6/003—Removal of residual monomers by physical means from polymer solutions, suspensions, dispersions or emulsions without recovery of the polymer therefrom
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J19/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
    • B01J19/0006—Controlling or regulating processes
    • B01J19/002—Avoiding undesirable reactions or side-effects, e.g. avoiding explosions, or improving the yield by suppressing side-reactions
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
    • C08F14/00—Homopolymers and copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen
    • C08F14/02—Monomers containing chlorine
    • C08F14/04—Monomers containing two carbon atoms
    • C08F14/06—Vinyl chloride
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J2219/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
    • B01J2219/00049—Controlling or regulating processes
    • B01J2219/00245—Avoiding undesirable reactions or side-effects
    • B01J2219/0025—Foam formation

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Organic Chemistry (AREA)
  • Health & Medical Sciences (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Dispersion Chemistry (AREA)
  • Polymerisation Methods In General (AREA)
  • Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications (AREA)

Abstract

PURPOSE: To enhance stability and operating efficiency of polymerization, by breaking foam on the liquid surface by means of mechanical means, in the polymerization of a vinyl chloride monomer and in the recovery of an unreacted monomer after the polymerization.
CONSTITUTION: In the polymerization of vinyl chloride or a monomer mixture primarily composed of vinyl chloride, with addition of an aqueous medium, a dispersing agent, a polymerization initiator and other additives required, in a polymerizer, foam, formed on the liquid surface during polymerization and recovery of an unreacted monomer after the polymerization, is broken by means of mechanical means. More precisely, the foam rising from the polymerization phase is broken, by means of the shearing force of a rotating blade, or by means of a vertical motion of a disc grate having a diameter slightly smaller than the inner diameter of the polymerizer, in the gas phase zone in the polymerizer.
COPYRIGHT: (C)1981,JPO&Japio
JP10163379A 1979-08-09 1979-08-09 Polymerization method of vinyl chloride monomer Expired JPS6042804B2 (en)

Priority Applications (10)

Application Number Priority Date Filing Date Title
JP10163379A JPS6042804B2 (en) 1979-08-09 1979-08-09 Polymerization method of vinyl chloride monomer
GB8024150A GB2055861B (en) 1979-08-09 1980-07-23 Polymerization of vinyl chloride
GR62521A GR69338B (en) 1979-08-09 1980-07-23
IN849/CAL/80A IN153574B (en) 1979-08-09 1980-07-24
DE19803028753 DE3028753A1 (en) 1979-08-09 1980-07-29 METHOD FOR POLYMERIZING VINYL CHLORIDE
PL22610280A PL226102A1 (en) 1979-08-09 1980-08-06
PT7166780A PT71667B (en) 1979-08-09 1980-08-07 Improvement in the polymerization process of vinyl chloride
MX18348680A MX156439A (en) 1979-08-09 1980-08-07 IMPROVED PROCEDURE FOR VINYL CHLORIDE POLYMERIZATION
BR8004967A BR8004967A (en) 1979-08-09 1980-08-07 PERFECT PROCESS FOR THE POLYMERIZATION OF VINYL CHLORIDE MONOMERS
FR8017519A FR2463154B1 (en) 1979-08-09 1980-08-08 PROCESS FOR THE REMOVAL OF FOAMS DURING THE POLYMERIZATION OF VINYL CHLORIDE

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP10163379A JPS6042804B2 (en) 1979-08-09 1979-08-09 Polymerization method of vinyl chloride monomer

Publications (2)

Publication Number Publication Date
JPS5626908A true JPS5626908A (en) 1981-03-16
JPS6042804B2 JPS6042804B2 (en) 1985-09-25

Family

ID=14305795

Family Applications (1)

Application Number Title Priority Date Filing Date
JP10163379A Expired JPS6042804B2 (en) 1979-08-09 1979-08-09 Polymerization method of vinyl chloride monomer

Country Status (10)

Country Link
JP (1) JPS6042804B2 (en)
BR (1) BR8004967A (en)
DE (1) DE3028753A1 (en)
FR (1) FR2463154B1 (en)
GB (1) GB2055861B (en)
GR (1) GR69338B (en)
IN (1) IN153574B (en)
MX (1) MX156439A (en)
PL (1) PL226102A1 (en)
PT (1) PT71667B (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5849710A (en) * 1981-09-18 1983-03-24 Shin Etsu Chem Co Ltd Defoaming method in preparation of vinyl chloride polymer and polymerizing apparatus
JPS5898881A (en) * 1981-12-08 1983-06-11 Pioneer Video Corp Time base controller for reproducing device of information recording disc

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0558595A4 (en) * 1990-11-08 1993-11-03 The Dow Chemical Company Reactor with foam shearing means for solution polymerization process
DE19711021A1 (en) * 1997-03-17 1998-09-24 Basf Ag Use of mechanical foam destroyers in the production of polymer dispersions

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE731756C (en) * 1939-06-21 1943-02-13 Ig Farbenindustrie Ag Process for removing foam
US3560402A (en) * 1968-04-10 1971-02-02 Int Paper Co Apparatus for mechanically breaking stable foams
ES438975A1 (en) * 1974-08-14 1977-02-16 Solvay Removal of residual vinyl chloride
DE2520591C3 (en) * 1975-05-09 1980-11-06 Hoechst Ag, 6000 Frankfurt Process and device for the continuous treatment of aqueous homo- and copolymer dispersions, the polymer content of which is at least 50% by weight polymerized
DE2757345C2 (en) * 1977-12-22 1986-01-23 Wacker-Chemie GmbH, 8000 München Process for foam destruction when removing residual monomer from reaction mixtures

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5849710A (en) * 1981-09-18 1983-03-24 Shin Etsu Chem Co Ltd Defoaming method in preparation of vinyl chloride polymer and polymerizing apparatus
JPH0338283B2 (en) * 1981-09-18 1991-06-10 Shinetsu Chem Ind Co
JPS5898881A (en) * 1981-12-08 1983-06-11 Pioneer Video Corp Time base controller for reproducing device of information recording disc

Also Published As

Publication number Publication date
PT71667B (en) 1981-06-11
DE3028753A1 (en) 1981-02-26
IN153574B (en) 1984-07-28
GB2055861B (en) 1983-09-21
FR2463154B1 (en) 1985-11-22
MX156439A (en) 1988-08-23
JPS6042804B2 (en) 1985-09-25
PL226102A1 (en) 1981-04-24
DE3028753C2 (en) 1990-06-28
BR8004967A (en) 1981-02-17
PT71667A (en) 1980-09-01
GB2055861A (en) 1981-03-11
FR2463154A1 (en) 1981-02-20
GR69338B (en) 1982-05-17

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