GB1101008A - Improvements in or relating to the preparation of spinnable solutions of poly acrylonitrile or copolymers having a high acrylonitrile content - Google Patents

Improvements in or relating to the preparation of spinnable solutions of poly acrylonitrile or copolymers having a high acrylonitrile content

Info

Publication number
GB1101008A
GB1101008A GB20683/65A GB2068365A GB1101008A GB 1101008 A GB1101008 A GB 1101008A GB 20683/65 A GB20683/65 A GB 20683/65A GB 2068365 A GB2068365 A GB 2068365A GB 1101008 A GB1101008 A GB 1101008A
Authority
GB
United Kingdom
Prior art keywords
acrylonitrile
preparation
copolymers
relating
poly
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
GB20683/65A
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.)
SNIA Viscosa SpA
Original Assignee
SNIA Viscosa 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
Application filed by SNIA Viscosa SpA filed Critical SNIA Viscosa SpA
Publication of GB1101008A publication Critical patent/GB1101008A/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
    • C08G18/00—Polymeric products of isocyanates or isothiocyanates
    • C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
    • C08G18/08—Processes
    • C08G18/10—Prepolymer processes involving reaction of isocyanates or isothiocyanates with compounds having active hydrogen in a first reaction step
    • 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
    • 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
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J9/00—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof
    • C08J9/24—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof by surface fusion and bonding of particles to form voids, e.g. sintering
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
    • C09D175/00—Coating compositions based on polyureas or polyurethanes; Coating compositions based on derivatives of such polymers
    • C09D175/04—Polyurethanes

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Wood Science & Technology (AREA)
  • Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications (AREA)

Abstract

A spinnable solution of polyacrylonitrile or a copolymer having an acrylonitrile content higher than 85% by weight and a molecular weight of from 60,000 to 65,000 is produced by a process comprising direct preparation of the polymer or copolymer solution starting from a mass comprising acrylonitrile in dimethyl formamide, preferably in association with other monomers, e.g. methyl methacrylate and sodium allyl sulphonate, characterized by starting, at a temperature of from 60 DEG to 65 DEG C. the polymerization of a mass containing at least 50% monomer(s) and stopping said process when from 30 to 40% of said monomer(s) has been converted. Terpolymers of acrylonitrile, sodium allyl sulphonate and methyl methacrylate, ethyl acrylate or methyl acrylate are prepared in the examples, using lauroyl peroxide as catalyst and thiourea dioxide as modifier.
GB20683/65A 1964-05-19 1965-05-17 Improvements in or relating to the preparation of spinnable solutions of poly acrylonitrile or copolymers having a high acrylonitrile content Expired GB1101008A (en)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
IT1106264 1964-05-19
IT1106364 1964-05-19
IT1105964 1964-05-19
IT1106064 1964-05-19

Publications (1)

Publication Number Publication Date
GB1101008A true GB1101008A (en) 1968-01-31

Family

ID=27452726

Family Applications (1)

Application Number Title Priority Date Filing Date
GB20683/65A Expired GB1101008A (en) 1964-05-19 1965-05-17 Improvements in or relating to the preparation of spinnable solutions of poly acrylonitrile or copolymers having a high acrylonitrile content

Country Status (5)

Country Link
BE (1) BE664058A (en)
DE (1) DE1645275A1 (en)
FR (1) FR1448092A (en)
GB (1) GB1101008A (en)
NL (1) NL6506295A (en)

Also Published As

Publication number Publication date
DE1645275A1 (en) 1970-03-12
FR1448092A (en) 1966-08-05
NL6506295A (en) 1965-11-22
BE664058A (en) 1965-11-17

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