GB1365590A - Method of suspension polymerizing vinyl chloride - Google Patents

Method of suspension polymerizing vinyl chloride

Info

Publication number
GB1365590A
GB1365590A GB1112372A GB1112372A GB1365590A GB 1365590 A GB1365590 A GB 1365590A GB 1112372 A GB1112372 A GB 1112372A GB 1112372 A GB1112372 A GB 1112372A GB 1365590 A GB1365590 A GB 1365590A
Authority
GB
United Kingdom
Prior art keywords
hydroxides
vinyl chloride
conversion
oxides
drops
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.)
Expired
Application number
GB1112372A
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 GB1112372A priority Critical patent/GB1365590A/en
Publication of GB1365590A publication Critical patent/GB1365590A/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
    • 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

Landscapes

  • Chemical & Material Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Polymerisation Methods In General (AREA)

Abstract

1365590 Suspension polymerisation SHINETSU CHEMICAL CO 9 March 1972 11123/72 Heading C3P In the suspension polymerization or copolymerization of vinyl chloride the pH is increased to at least 8 before 30% conversion, but after stabilized suspended oil drops have formed or a film of polymer has formed over the drops, e.g. after 3% conversion. The basic materials added are alkali metal oxides, hydroxides, peroxides or salts of weak acids, oxides or hydroxides of alkaline earth metal or hydroxides of other polyvalent metals. Dispersing assistants may be added, e.g. non-ionic or anionic emulsifiers or higher alcohols or acids. Exemplified comonomers are vinyl acetate or stearate and cetyl or stearyl vinyl ether.
GB1112372A 1972-03-09 1972-03-09 Method of suspension polymerizing vinyl chloride Expired GB1365590A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB1112372A GB1365590A (en) 1972-03-09 1972-03-09 Method of suspension polymerizing vinyl chloride

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1112372A GB1365590A (en) 1972-03-09 1972-03-09 Method of suspension polymerizing vinyl chloride

Publications (1)

Publication Number Publication Date
GB1365590A true GB1365590A (en) 1974-09-04

Family

ID=9980464

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1112372A Expired GB1365590A (en) 1972-03-09 1972-03-09 Method of suspension polymerizing vinyl chloride

Country Status (1)

Country Link
GB (1) GB1365590A (en)

Cited By (3)

* 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
US4757124A (en) * 1984-07-23 1988-07-12 Shin-Etsu Chemical Co., Ltd. Process for production of vinyl chloride polymer
US5145921A (en) * 1989-10-09 1992-09-08 Solvay & Cie (Societe Anonyme) Process for reducing the formation of buildup in reactors during polymerization of vinylidene fluoride in an aqueous suspending medium

Cited By (3)

* 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
US4757124A (en) * 1984-07-23 1988-07-12 Shin-Etsu Chemical Co., Ltd. Process for production of vinyl chloride polymer
US5145921A (en) * 1989-10-09 1992-09-08 Solvay & Cie (Societe Anonyme) Process for reducing the formation of buildup in reactors during polymerization of vinylidene fluoride in an aqueous suspending medium

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Legal Events

Date Code Title Description
PS Patent sealed
PCNP Patent ceased through non-payment of renewal fee