GB663268A - Improvements in or relating to a method of preparing copolymers of acrylonitrile - Google Patents

Improvements in or relating to a method of preparing copolymers of acrylonitrile

Info

Publication number
GB663268A
GB663268A GB212849A GB212849A GB663268A GB 663268 A GB663268 A GB 663268A GB 212849 A GB212849 A GB 212849A GB 212849 A GB212849 A GB 212849A GB 663268 A GB663268 A GB 663268A
Authority
GB
United Kingdom
Prior art keywords
addition
sodium
soluble
acrylonitrile
per cent
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
GB212849A
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.)
Monsanto Chemicals Ltd
Monsanto Chemical Co
Original Assignee
Monsanto Chemicals Ltd
Monsanto Chemical Co
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 BE502531D priority Critical patent/BE502531A/xx
Priority to US5483A priority patent/US2559155A/en
Application filed by Monsanto Chemicals Ltd, Monsanto Chemical Co filed Critical Monsanto Chemicals Ltd
Priority to GB212849A priority patent/GB663268A/en
Priority to FR1038665D priority patent/FR1038665A/en
Priority to CH299378D priority patent/CH299378A/en
Publication of GB663268A publication Critical patent/GB663268A/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
    • C08F220/00—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
    • C08F220/02—Monocarboxylic acids having less than ten carbon atoms; Derivatives thereof
    • C08F220/42—Nitriles
    • C08F220/44—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)
  • Artificial Filaments (AREA)

Abstract

Copolymers are prepared by adding 40 to 98 per cent of acrylonitrile and 2 to 60 per cent of styrene, alpha methyl styrene, or vinyl acetate, to an aqueous medium at reflux temperature at a rate such that the reflux temperature is maintained, the medium containing a water-soluble peroxy catalyst such as hydrogen or sodium peroxide, sodium perborate, or potassium persulphate, and a dispersing agent such as sodium oleate, potassium stearate, triethanolamine, doecylmethylamine, rosin soaps, water-soluble salts of half esters of sulphuric acid and long-chain alkyl alcohols, alkyl aryl sulphonates, sulphonated mahogany soap, and di-2-ethyl hexyl sodium sulphosuccinate. The monomers, which may contain dodecyl mercaptan, may be added separately, or mixed, in the proportions required to produce a uniform copolymer and the catalyst may be wholly charged initially, or added continuously or intermittently during the reaction. The polymerization is stopped by the addition of a polymerization inhibitor, by steam distilling unreacted monomer, by rapid stirring, freezing, the addition of an organic liquid, such as ethanol, or by the addition of an inorganic salt. The resulting copolymers are acetone-soluble and suitable for injection moulding or fibre formation.
GB212849A 1948-01-30 1949-01-26 Improvements in or relating to a method of preparing copolymers of acrylonitrile Expired GB663268A (en)

Priority Applications (5)

Application Number Priority Date Filing Date Title
BE502531D BE502531A (en) 1949-01-26
US5483A US2559155A (en) 1948-01-30 1948-01-30 Method of preparing polymers of acrylonitrile
GB212849A GB663268A (en) 1949-01-26 1949-01-26 Improvements in or relating to a method of preparing copolymers of acrylonitrile
FR1038665D FR1038665A (en) 1949-01-26 1951-03-30 Improvements relating to a process for preparing acrylonitrile copolymers
CH299378D CH299378A (en) 1949-01-26 1951-06-16 Process for the production of copolymers of acrylonitrile.

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB212849A GB663268A (en) 1949-01-26 1949-01-26 Improvements in or relating to a method of preparing copolymers of acrylonitrile

Publications (1)

Publication Number Publication Date
GB663268A true GB663268A (en) 1951-12-19

Family

ID=9734095

Family Applications (1)

Application Number Title Priority Date Filing Date
GB212849A Expired GB663268A (en) 1948-01-30 1949-01-26 Improvements in or relating to a method of preparing copolymers of acrylonitrile

Country Status (4)

Country Link
BE (1) BE502531A (en)
CH (1) CH299378A (en)
FR (1) FR1038665A (en)
GB (1) GB663268A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4015033A (en) 1972-02-24 1977-03-29 Imperial Chemical Industries Limited Laminates of acrylonitrile/styrene copolymers
WO2017084853A1 (en) * 2015-11-16 2017-05-26 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e. V. Method for producing thermally stable melt-spinnable pan copolymers, pan copolymers, molded bodies made thereof, and a method for producing said molded bodies
US11180869B2 (en) 2016-03-22 2021-11-23 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Melt spinnable copolymers from polyacrylonitrile, method for producing fibers or fiber precursors by means of melt spinning, and fibers produced accordingly

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4015033A (en) 1972-02-24 1977-03-29 Imperial Chemical Industries Limited Laminates of acrylonitrile/styrene copolymers
WO2017084853A1 (en) * 2015-11-16 2017-05-26 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e. V. Method for producing thermally stable melt-spinnable pan copolymers, pan copolymers, molded bodies made thereof, and a method for producing said molded bodies
US11203656B2 (en) 2015-11-16 2021-12-21 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Method for producing thermally stable melt-spinnable pan copolymers, pan copolymers, molded bodies made thereof, and a method for producing said molded bodies
US11180869B2 (en) 2016-03-22 2021-11-23 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Melt spinnable copolymers from polyacrylonitrile, method for producing fibers or fiber precursors by means of melt spinning, and fibers produced accordingly

Also Published As

Publication number Publication date
CH299378A (en) 1954-06-15
FR1038665A (en) 1953-09-30
BE502531A (en)

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