GB719566A - Process for modifying the solubility of polymers - Google Patents

Process for modifying the solubility of polymers

Info

Publication number
GB719566A
GB719566A GB2516/52A GB251652A GB719566A GB 719566 A GB719566 A GB 719566A GB 2516/52 A GB2516/52 A GB 2516/52A GB 251652 A GB251652 A GB 251652A GB 719566 A GB719566 A GB 719566A
Authority
GB
United Kingdom
Prior art keywords
acrylonitrile
polymers
formaldehyde
solubility
polymer
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
GB2516/52A
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.)
Rhodiaceta SA
Original Assignee
Rhodiaceta SA
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 Rhodiaceta SA filed Critical Rhodiaceta SA
Publication of GB719566A publication Critical patent/GB719566A/en
Expired legal-status Critical Current

Links

Classifications

    • 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
    • C08J3/00—Processes of treating or compounding macromolecular substances
    • C08J3/02—Making solutions, dispersions, lattices or gels by other methods than by solution, emulsion or suspension polymerisation techniques
    • C08J3/09—Making solutions, dispersions, lattices or gels by other methods than by solution, emulsion or suspension polymerisation techniques in organic liquids
    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01F—CHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS; APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBON FILAMENTS
    • D01F6/00—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof
    • D01F6/02—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof from homopolymers obtained by reactions only involving carbon-to-carbon unsaturated bonds
    • D01F6/18—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof from homopolymers obtained by reactions only involving carbon-to-carbon unsaturated bonds from polymers of unsaturated nitriles, e.g. polyacrylonitrile, polyvinylidene cyanide
    • 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
    • C08J2333/00—Characterised by the use of homopolymers or 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 of salts, anhydrides, esters, amides, imides, or nitriles thereof; Derivatives of such polymers
    • C08J2333/18—Homopolymers or copolymers of nitriles
    • C08J2333/20—Homopolymers or copolymers of acrylonitrile

Landscapes

  • Chemical & Material Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Toxicology (AREA)
  • General Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Dispersion Chemistry (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications (AREA)

Abstract

The solubility at ambient temperatures of N,N-dimethylformamide-soluble acrylonitrile polymers, containing at least 85 per cent. acrylonitrile and free from hydroxyl groups, is reduced by submitting the polymer in finely divided state to a non-hydrolyzing treatment with an aqueous solution of formaldehyde, any excess formaldehyde being removed after the separation of the polymer from the reaction medium. Specified polymers are polyacrylonitrile and a copolymer of acrylonitrile with 5 per cent. of vinyl dimethylaminoethyl ether. The treatment is preferably carried out at a temperature between 10 DEG and 150 DEG C. for a period between half and 24 hours. The aqueous formaldehyde solution may be acid, neutral or alkaline in reaction, and may contain a bleaching agent, such as sodium chlorite.
GB2516/52A 1951-02-19 1952-01-30 Process for modifying the solubility of polymers Expired GB719566A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR925196X 1951-02-19

Publications (1)

Publication Number Publication Date
GB719566A true GB719566A (en) 1954-12-01

Family

ID=9439918

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2516/52A Expired GB719566A (en) 1951-02-19 1952-01-30 Process for modifying the solubility of polymers

Country Status (6)

Country Link
BE (1) BE507443A (en)
CH (1) CH296005A (en)
DE (1) DE925196C (en)
FR (1) FR1032839A (en)
GB (1) GB719566A (en)
NL (2) NL78790C (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1026069B (en) * 1954-09-28 1958-03-13 Chemische Werke Huels Aktien G Process for the production of adaptable acrylonitrile polymers
DE1085292B (en) * 1959-04-25 1960-07-14 Wolfen Filmfab Veb Process for the production of structures from polyacrylonitrile and / or its copolymers

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE716322C (en) * 1938-06-09 1942-01-20 Roehm & Haas G M B H Hardening of water-soluble polymers

Also Published As

Publication number Publication date
BE507443A (en)
NL166212B (en)
CH296005A (en) 1954-01-31
FR1032839A (en) 1953-07-06
NL78790C (en)
DE925196C (en) 1955-03-14

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