FR2175615A1 - Vinyl chloride suspension polymn - using alkaline aqs phase to prevent deposition of polymer on reactor walls - Google Patents

Vinyl chloride suspension polymn - using alkaline aqs phase to prevent deposition of polymer on reactor walls

Info

Publication number
FR2175615A1
FR2175615A1 FR7209135A FR7209135A FR2175615A1 FR 2175615 A1 FR2175615 A1 FR 2175615A1 FR 7209135 A FR7209135 A FR 7209135A FR 7209135 A FR7209135 A FR 7209135A FR 2175615 A1 FR2175615 A1 FR 2175615A1
Authority
FR
France
Prior art keywords
aqs
phase
vinyl chloride
alkaline
polymer
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
FR7209135A
Other languages
French (fr)
Other versions
FR2175615B1 (en
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
Priority to CH274872A priority Critical patent/CH567530A5/en
Priority to AT165572A priority patent/AT328179B/en
Priority to AU39741/72A priority patent/AU464627B2/en
Priority to BE780418A priority patent/BE780418A/en
Application filed by Shin Etsu Chemical Co Ltd filed Critical Shin Etsu Chemical Co Ltd
Priority to FR7209135A priority patent/FR2175615A1/en
Publication of FR2175615A1 publication Critical patent/FR2175615A1/en
Application granted granted Critical
Publication of FR2175615B1 publication Critical patent/FR2175615B1/fr
Granted 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
    • 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

Abstract

Suspension polymerisation of vinyl chloride mixed with a smaller amount of another monomer, is effected in an aqs. medium contg. a small amount of a suspension agent and a polymsn. initiator, a small amount of an alkaline substance being added to the polymsn. medium before the intiation of polymsn., or before the degree of conversion reaches 30%, so that the pH value of the aqs. phase is >=8.
FR7209135A 1972-02-25 1972-03-16 Vinyl chloride suspension polymn - using alkaline aqs phase to prevent deposition of polymer on reactor walls Granted FR2175615A1 (en)

Priority Applications (5)

Application Number Priority Date Filing Date Title
CH274872A CH567530A5 (en) 1972-02-25 1972-02-25 Vinyl chloride suspension polymn - using alkaline aqs phase to prevent deposition of polymer on reactor walls
AT165572A AT328179B (en) 1972-02-25 1972-02-29 METHOD OF PREPARING VINYL CHLORIDE POLYMERS
AU39741/72A AU464627B2 (en) 1972-02-25 1972-03-08 Method for suspension-polymerizing vinyl chloride
BE780418A BE780418A (en) 1972-02-25 1972-03-09 Vinyl chloride suspension polymn - using alkaline aqs phase to prevent deposition of polymer on reactor walls
FR7209135A FR2175615A1 (en) 1972-02-25 1972-03-16 Vinyl chloride suspension polymn - using alkaline aqs phase to prevent deposition of polymer on reactor walls

Applications Claiming Priority (5)

Application Number Priority Date Filing Date Title
CH274872A CH567530A5 (en) 1972-02-25 1972-02-25 Vinyl chloride suspension polymn - using alkaline aqs phase to prevent deposition of polymer on reactor walls
AT165572A AT328179B (en) 1972-02-25 1972-02-29 METHOD OF PREPARING VINYL CHLORIDE POLYMERS
AU39741/72A AU464627B2 (en) 1972-02-25 1972-03-08 Method for suspension-polymerizing vinyl chloride
BE780418A BE780418A (en) 1972-02-25 1972-03-09 Vinyl chloride suspension polymn - using alkaline aqs phase to prevent deposition of polymer on reactor walls
FR7209135A FR2175615A1 (en) 1972-02-25 1972-03-16 Vinyl chloride suspension polymn - using alkaline aqs phase to prevent deposition of polymer on reactor walls

Publications (2)

Publication Number Publication Date
FR2175615A1 true FR2175615A1 (en) 1973-10-26
FR2175615B1 FR2175615B1 (en) 1974-12-13

Family

ID=61628491

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7209135A Granted FR2175615A1 (en) 1972-02-25 1972-03-16 Vinyl chloride suspension polymn - using alkaline aqs phase to prevent deposition of polymer on reactor walls

Country Status (5)

Country Link
AT (1) AT328179B (en)
AU (1) AU464627B2 (en)
BE (1) BE780418A (en)
CH (1) CH567530A5 (en)
FR (1) FR2175615A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0606930A2 (en) * 1988-11-30 1994-07-20 Mita Industrial Co., Ltd. Process for preparation of polymer particles, process for preparation of toner particles and particles prepared according to these processes

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4359560A (en) * 1978-06-13 1982-11-16 Air Products And Chemicals, Inc. Method for reducing wall fouling in vinyl chloride polymerization
NO855126L (en) * 1985-01-07 1986-07-08 Dow Chemical Co CO-SUSPENDING AID SYSTEM FOR USE BY POLYMERIZATION OF ETHYLENIC Saturated MONOMERS.

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0606930A2 (en) * 1988-11-30 1994-07-20 Mita Industrial Co., Ltd. Process for preparation of polymer particles, process for preparation of toner particles and particles prepared according to these processes
EP0606930A3 (en) * 1988-11-30 1994-08-24 Mita Industrial Co Ltd Process for preparation of polymer particles, process for preparation of toner particles and particles prepared according to these processes.

Also Published As

Publication number Publication date
BE780418A (en) 1972-09-11
AU464627B2 (en) 1975-09-04
FR2175615B1 (en) 1974-12-13
CH567530A5 (en) 1975-10-15
ATA165572A (en) 1975-05-15
AT328179B (en) 1976-03-10
AU3974172A (en) 1973-09-13

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Legal Events

Date Code Title Description
ST Notification of lapse