GB712990A - Improvements in or relating to solutions of polyacrylonitrile and acrylonitrile copolymers - Google Patents
Improvements in or relating to solutions of polyacrylonitrile and acrylonitrile copolymersInfo
- Publication number
- GB712990A GB712990A GB639451A GB639451A GB712990A GB 712990 A GB712990 A GB 712990A GB 639451 A GB639451 A GB 639451A GB 639451 A GB639451 A GB 639451A GB 712990 A GB712990 A GB 712990A
- Authority
- GB
- United Kingdom
- Prior art keywords
- formic acid
- polyacrylonitrile
- mixture
- substances capable
- fibres
- 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
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
- C08J3/091—Making solutions, dispersions, lattices or gels by other methods than by solution, emulsion or suspension polymerisation techniques in organic liquids characterised by the chemical constitution of the organic liquid
- C08J3/095—Oxygen containing compounds
-
- 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)
- General Chemical & Material Sciences (AREA)
- Dispersion Chemistry (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Compositions Of Macromolecular Compounds (AREA)
- Artificial Filaments (AREA)
Abstract
Solutions suitable for the manufacture of fibres comprise an acrylonitrile polymer dissolved in a solvent consisting of formic acid alone, aqueous formic acid of concentration at least 70 per cent. an anhydrous mixture of formic acid with one or more substances capable of dissolving polyacrylonitrile, a mixture of formic acid and water with one or more substances capable by themselves of dissolving polyacrylonitrile, or a mixture of formic acid, oxalic acid and water. The acrylonitrile polymer may be polyacrylonitrile or a copolymer of acrylonitrile with methacrylonitrile, vinyl chloride, vinylidene chloride, vinyl acetate, methyl acrylate, phenylacrylate, or styrene. Substances capable of dissolving polyacrylonitrile are cyclic anhydrides of dicarboxylic acids, e.g. maleic, succinic and glutaric anhydrides, lactones, e.g. gammabutyrolactone and gamma- and deltavalerolactones, cyclic carbonates of glycols, e.g. cyclic ethylene carbonate. The fibres and films are preferably made by wet-spinning or wet-casting techniques such as those described in Specification 712,984 and the fibres oriented by stretching, e.g. as described in Specification 636,476. The compositions may also be used as coatings.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB639451A GB712990A (en) | 1950-06-29 | 1950-06-29 | Improvements in or relating to solutions of polyacrylonitrile and acrylonitrile copolymers |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB639451A GB712990A (en) | 1950-06-29 | 1950-06-29 | Improvements in or relating to solutions of polyacrylonitrile and acrylonitrile copolymers |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB712990A true GB712990A (en) | 1954-08-04 |
Family
ID=9813720
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB639451A Expired GB712990A (en) | 1950-06-29 | 1950-06-29 | Improvements in or relating to solutions of polyacrylonitrile and acrylonitrile copolymers |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB712990A (en) |
-
1950
- 1950-06-29 GB GB639451A patent/GB712990A/en not_active Expired
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