ES274015A1 - Improvements in the production of polymer solutions - Google Patents

Improvements in the production of polymer solutions

Info

Publication number
ES274015A1
ES274015A1 ES0274015A ES274015A ES274015A1 ES 274015 A1 ES274015 A1 ES 274015A1 ES 0274015 A ES0274015 A ES 0274015A ES 274015 A ES274015 A ES 274015A ES 274015 A1 ES274015 A1 ES 274015A1
Authority
ES
Spain
Prior art keywords
sulphoxide
sulphone
pentamethylene
solvent
tetramethylene
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
ES0274015A
Other languages
Spanish (es)
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.)
Akzo Nobel UK PLC
Original Assignee
Courtaulds PLC
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 Courtaulds PLC filed Critical Courtaulds PLC
Publication of ES274015A1 publication Critical patent/ES274015A1/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
    • C08F20/44—Acrylonitrile
    • 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

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

In a process for producing solutions of acrylonitrile polymers containing at least 80% by weight of acrylonitrile units by polymerizing acrylonitrile or a mixture containing it in solution in a liquid which is also a solvent for the polymer, the solvent employed is a cyclic sulphone or sulphoxide comprising tetramethylene sulphoxide, pentamethylene sulphone, pentamethylene sulphoxide, or a 5- or 6-membered ring containing only the sulphone or sulphoxide group, an oxygen atom and carbon atoms. or a substituted cyclic sulphone or sulphoxide comprising a 5- or 6-membered ring containing only the sulphone or sulphoxide group, an oxygen atom if desired and carbon atoms wherein there is a single substituent which has no adverse effect on the polymerization. The medium may contain minor proportions of another solvent or a non-solvent, e.g. water. Specified solvents are tetramethylene sulphoxide, pentamethylene sulphone, pentamethylene sulphoxide, 1:4-thioxane-4-oxide, and compounds in which the ring carries a substituent such as methyl or methoxy, e.g. b -methyl tetramethylene sulphone. Specified comonomers are methyl acrylate, itaconic acid, styrene, vinyl acetate, vinyl pyridine and methallyl sulphonic acid and its salts. Polymerization may be effected in the presence of catalysts, e.g. azobisisobutyronitrile, and the solutions used for spinning fibres.
ES0274015A 1962-01-23 1962-01-24 Improvements in the production of polymer solutions Expired ES274015A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2731/61A GB1006600A (en) 1962-01-23 1962-01-23 Improvements in the production of polymer solutions

Publications (1)

Publication Number Publication Date
ES274015A1 true ES274015A1 (en) 1962-04-16

Family

ID=9744819

Family Applications (1)

Application Number Title Priority Date Filing Date
ES0274015A Expired ES274015A1 (en) 1962-01-23 1962-01-24 Improvements in the production of polymer solutions

Country Status (3)

Country Link
BE (1) BE613056A (en)
ES (1) ES274015A1 (en)
GB (1) GB1006600A (en)

Also Published As

Publication number Publication date
GB1006600A (en) 1965-10-06
BE613056A (en) 1962-05-16

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