GB1336757A - Process of producing heat-stable polyvinyl chloride - Google Patents

Process of producing heat-stable polyvinyl chloride

Info

Publication number
GB1336757A
GB1336757A GB1725971A GB1725971A GB1336757A GB 1336757 A GB1336757 A GB 1336757A GB 1725971 A GB1725971 A GB 1725971A GB 1725971 A GB1725971 A GB 1725971A GB 1336757 A GB1336757 A GB 1336757A
Authority
GB
United Kingdom
Prior art keywords
polyvinyl chloride
producing heat
stable polyvinyl
polymerization
catalyst
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
GB1725971A
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.)
Czech Academy of Sciences CAS
Original Assignee
Czech Academy of Sciences CAS
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 Czech Academy of Sciences CAS filed Critical Czech Academy of Sciences CAS
Publication of GB1336757A publication Critical patent/GB1336757A/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
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P20/00—Technologies relating to chemical industry
    • Y02P20/50—Improvements relating to the production of bulk chemicals
    • Y02P20/52—Improvements relating to the production of bulk chemicals using catalysts, e.g. selective catalysts

Abstract

1336757 Polyvinyl chloride CESKOSLOVENSKA AKADEMIE VED 26 May 1971 [11 June 1970] 17259/71 Heading C3P Polyvinyl chloride having improved heat stability is obtained by the use of t-butyllithium, which should contain less than 0À1 wt., per cent of impurities, as the polymerization catalyst. The polymerization is carried out, in bulk or in solution, at -20‹C to + 30‹C and 1 to 4 atm. The catalyst may be added in small portions as the reaction proceeds in order to maintain a constant low concentration.
GB1725971A 1970-06-11 1971-05-26 Process of producing heat-stable polyvinyl chloride Expired GB1336757A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CS411070A CS156723B1 (en) 1970-06-11 1970-06-11

Publications (1)

Publication Number Publication Date
GB1336757A true GB1336757A (en) 1973-11-07

Family

ID=5383111

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1725971A Expired GB1336757A (en) 1970-06-11 1971-05-26 Process of producing heat-stable polyvinyl chloride

Country Status (7)

Country Link
JP (1) JPS4931748B1 (en)
CA (1) CA939448A (en)
CS (1) CS156723B1 (en)
DE (1) DE2127412C3 (en)
FR (1) FR2096039A5 (en)
GB (1) GB1336757A (en)
SE (1) SE420735B (en)

Also Published As

Publication number Publication date
DE2127412B2 (en) 1979-11-15
DE2127412C3 (en) 1980-07-31
SE420735B (en) 1981-10-26
DE2127412A1 (en) 1971-12-16
JPS4931748B1 (en) 1974-08-24
CS156723B1 (en) 1974-08-23
CA939448A (en) 1974-01-01
FR2096039A5 (en) 1972-02-11

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Legal Events

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