GB1430677A - Process for the bulk polymerization of acrylonitrile - Google Patents

Process for the bulk polymerization of acrylonitrile

Info

Publication number
GB1430677A
GB1430677A GB2438573A GB2438573A GB1430677A GB 1430677 A GB1430677 A GB 1430677A GB 2438573 A GB2438573 A GB 2438573A GB 2438573 A GB2438573 A GB 2438573A GB 1430677 A GB1430677 A GB 1430677A
Authority
GB
United Kingdom
Prior art keywords
vinyl
acrylonitrile
catalyst
polymerization
dwell time
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
GB2438573A
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.)
Montedison Fibre SpA
Original Assignee
Montedison Fibre SpA
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 claimed from IT24701/72A external-priority patent/IT1006538B/en
Application filed by Montedison Fibre SpA filed Critical Montedison Fibre SpA
Publication of GB1430677A publication Critical patent/GB1430677A/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
    • C08F20/00—Homopolymers and copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and only one being terminated by only one carboxyl radical or a salt, anhydride, ester, amide, imide or nitrile thereof
    • C08F20/02—Monocarboxylic acids having less than ten carbon atoms, Derivatives thereof
    • C08F20/42—Nitriles
    • 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
    • C08F2/00—Processes of polymerisation
    • C08F2/36—Polymerisation in solid state
    • 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
    • C08F20/00—Homopolymers and copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and only one being terminated by only one carboxyl radical or a salt, anhydride, ester, amide, imide or nitrile thereof
    • C08F20/02—Monocarboxylic acids having less than ten carbon atoms, Derivatives thereof
    • C08F20/42—Nitriles
    • C08F20/44—Acrylonitrile

Landscapes

  • Chemical & Material Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)

Abstract

1430677 Bulk polymerization of acrylonitrile MONTEDISON FIBRE SpA 22 May 1973 [23 May 1972] 24385/73 Addition to 1337162 Heading C3P Acrylonitrile, alone or in admixture with up to 50 molar per cent of at least one ethylenically unsaturated comonomer, is polymerized in bulk by a process using (a) a continuous or semi-continuous polymerization procedure, (b) 2,2<SP>1</SP>- azo - bis - (2,4 - dimethyl - 4 - methoxyvaleronitrile) as a free radical catalyst, (c) a reaction or dwell time Q of sufficient duration to allow the catalyst to decompose to at least half its initial concentration, and (d) a concentration of catalyst which is at least equal to 2À10<SP>-3</SP>.Q moles/litre where Q is the dwell time in hours. Polymerization may be effected in the presence of small amounts of chain transfer agents (e.g. mercaptans) and organic diluents. Optional comonomers include (meth)acrylate esters, unsaturated ketones, vinyl esters, e.g. vinyl acetate, vinyl ethers, styrene and alkyl styrenes, vinyl or vinylidene chloride, vinyl fluoride, methacrylonitrile and butadiene. The acrylonitrile polymers obtained are stated to be even whiter and more heat-resistant than those described in the parent Specification 1,337,162.
GB2438573A 1970-04-28 1973-05-22 Process for the bulk polymerization of acrylonitrile Expired GB1430677A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IT2396370 1970-04-28
IT24701/72A IT1006538B (en) 1972-05-23 1972-05-23 PROCEDURE FOR BULK POLYMERIZATION OF ACRYLONITRILE

Publications (1)

Publication Number Publication Date
GB1430677A true GB1430677A (en) 1976-03-31

Family

ID=26328446

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2438573A Expired GB1430677A (en) 1970-04-28 1973-05-22 Process for the bulk polymerization of acrylonitrile

Country Status (4)

Country Link
DE (1) DE2326063A1 (en)
FR (1) FR2185636B2 (en)
GB (1) GB1430677A (en)
NL (1) NL7306975A (en)

Also Published As

Publication number Publication date
DE2326063A1 (en) 1973-12-13
NL7306975A (en) 1973-11-27
FR2185636B2 (en) 1976-06-11
FR2185636A2 (en) 1974-01-04

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Legal Events

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