GB1193170A - Manufacture of Industrial Acrylic Fibers - Google Patents
Manufacture of Industrial Acrylic FibersInfo
- Publication number
- GB1193170A GB1193170A GB56243/67A GB5624367A GB1193170A GB 1193170 A GB1193170 A GB 1193170A GB 56243/67 A GB56243/67 A GB 56243/67A GB 5624367 A GB5624367 A GB 5624367A GB 1193170 A GB1193170 A GB 1193170A
- Authority
- GB
- United Kingdom
- Prior art keywords
- filament
- acrylonitrile
- stretch
- bath
- 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
Links
Classifications
-
- 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
-
- 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
- D01F6/28—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof from copolymers obtained by reactions only involving carbon-to-carbon unsaturated bonds
- D01F6/38—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof from copolymers obtained by reactions only involving carbon-to-carbon unsaturated bonds comprising unsaturated nitriles as the major constituent
-
- 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
- D01F6/44—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof from mixtures of polymers obtained by reactions only involving carbon-to-carbon unsaturated bonds as major constituent with other polymers or low-molecular-weight compounds
- D01F6/54—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof from mixtures of polymers obtained by reactions only involving carbon-to-carbon unsaturated bonds as major constituent with other polymers or low-molecular-weight compounds of polymers of unsaturated nitriles
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Health & Medical Sciences (AREA)
- Toxicology (AREA)
- Artificial Filaments (AREA)
Abstract
1,193,170. Industrial acrylic fibres. MONSANTO CO. 11 Dec., 1967 [12 Dec., 1966], No. 56243/67. Heading B5B. A method for the manufacture of an industrial filament of an acrylonitrile polymer having a tenacity of at least 3 grams per denier and an elongation at break of at least 15% at linear take-up speeds of at least 800 ft. per minute, is characterized by extruding a solution of a polymer of acrylonitrile into an inert gaseous medium for a distance of from # to 4 inches (0À32 to 10 cms.) to form a filamentary shaped polymer solution and then passing the thus formed filamentary shaped solution into a coagulation bath; passing the filament from the coagulation bath to a first godet and into a hot water bath at 50‹ to 100‹ C. for a distance sufficient to elevate the temperature of the filament to the temperature of the bath and then passing the filament to a first stretch godet having a peripheral speed of from 2 to 5 times the peripheral speed of said first godet to stretch the filament from 2 to 5 times the coagulated length; applying an antistatic finish to said filament and thereafter passing the filament over a series of rolls wherein the temperature is incrementally elevated from temperatures below about 100‹ C. up to about 170‹ C. to dry and collapse the filamentary structure and thereafter passing the filamentary structure to rolls at from 180‹ to 200‹ C. and passing the filament from rolls in the latter temperature range to a second stretch godet having a peripheral speed of from 2 to 5 times the speed of said first stretch godet to further stretch the filament to from 2 to 5 times, with the proviso that the total stretch imparted to the filament by said first and second stretch rolls is at least 9 times the length of the coagulated filament; and thereafter passing said filament to a heat relaxation zone wherein the filament is allowed to shrink at least about 10% of its length. Preferably, the coagulated filament is washed with water on said first godet and the first stretch lies between 3 and 4 times the coagulated length and the further stretch lies between 3 and 4 times the length of the filament after the first stretch. By acrylonitrile polymer is meant polyacrylonitrile, copolymers, and terpolymers of acrylonitrile, and blends of polyacrylonitrile and copolymers of acrylonitrile with other polymerizable mono-olefinic materials, as well as blends of polyacrylonitrile and such copolymers with small proportions of other polymeric materials, such as polystyrene. In general a polymer may be used which is made from a monomeric mixture of which acrylonitrile is at least 70% by weight of the polymerisable content. Besides polyacrylonitrile, useful copolymers are those of 80 or more per cent of acrylonitrile and 1 or more percent of other mono-olefinic monomers. A wide variety of suitable polymeric compositions is listed. Of particular utility are blends of polyacrylonitrile or a copolymer of more than 90% acrylonitrile and up to 10% vinyl acetate, and a copolymer of vinyl pyridine or an alkylsubstituted vinyl pyridine and acrylonitrile. Of particular utility also are blends of copolymers of 90 to 98% acrylonitrile and 10 to 2% vinyl acetate and sufficient copolymer of 10 to 70% acrylonitrile and 90 to 30% vinyl pyridine to produce a blended composition of a total of 2 to 10 weight per cent vinyl pyridine. Preferred spinning solvents include N,N-dimethyl formamide, butyrolactone, dimethyl sulphoxide and N,N-dimethylacetamide. Ethylene carbonate, and concentrated aqueous solutions of zinc chloride, calcium chloride, lithium bromide, cadmium bromide, or sodium thiocyanate, may also be used. The spinning solution may be maintained prior to and at extrusion at temperatures from about 20‹ to 180‹ C. A solution containing at least 10% acrylonitrile polymer is desirable. Preferably, the spinneret is positioned so that its face is between # and 1¢ inches (0À32 to 3À8 cms.) above the bath, and the gas between the spinneret and the coagulating bath through which the streams of polymer travel is normally air. The coagulating baths suitable for use in the invention normally contain a non-solvent for the acrylonitrile polymer e.g. water, or a mixture of a solvent and a non-solvent. Preferably, the solvent used in the coagulating bath is the same as that used in preparing the polymer solution. Desirably, the coagulating bath contains 20% to 80% solvent, and its temperature range is suitably from -40‹ to + 80‹ C. Baths at the lower temperatures should contain high concentrations of solvent. The filaments may be given a travel in the coagulating bath, e.g. from 2 to 24 inches (5À08 to 61 cms.) or more by employment of two suitably spaced guides and withdrawal rolls. Between the spinneret and the withdrawal rolls, the filaments are subjected to a desired substantial attenuation. Washing may be accomplished either by spraying water on the filaments travelling around positively driven rolls as the tow leaves the coagulation bath, or may be accomplished in the hot water stretch bath. Examples are given.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US60072266A | 1966-12-12 | 1966-12-12 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1193170A true GB1193170A (en) | 1970-05-28 |
Family
ID=24404800
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB56243/67A Expired GB1193170A (en) | 1966-12-12 | 1967-12-11 | Manufacture of Industrial Acrylic Fibers |
Country Status (3)
Country | Link |
---|---|
US (1) | US3523150A (en) |
GB (1) | GB1193170A (en) |
IL (1) | IL29110A (en) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0144983A2 (en) * | 1983-12-10 | 1985-06-19 | Stamicarbon B.V. | Process for preparing polyacrylonitrile articles having high tensile strength and modulus |
EP0144793B1 (en) | 1983-12-05 | 1988-10-12 | AlliedSignal Inc. | High tenacity and modulus polyacrylonitrile fiber and method |
EP0154217B1 (en) | 1984-02-25 | 1989-09-20 | Hoechst Aktiengesellschaft | Monofilament and bristles from acrylonitrile homo or copolymers and process for manufacturing them |
US6228966B1 (en) | 1996-12-11 | 2001-05-08 | Acordis Kehlheim Gmbh | High-strength high-modulus polyacrylonitrile fibers, method for their production and use |
Families Citing this family (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5317690B1 (en) * | 1969-02-03 | 1978-06-10 | ||
JPS5239099B1 (en) * | 1969-03-02 | 1977-10-03 | ||
US4002426A (en) * | 1971-01-25 | 1977-01-11 | Celanese Corporation | Production of stabilized non-burning acrylic fibers and films |
JPS5146170B2 (en) * | 1972-09-14 | 1976-12-07 | ||
JPS5146857B2 (en) * | 1972-09-14 | 1976-12-11 | ||
NL7904176A (en) * | 1978-06-05 | 1979-12-07 | Rhone Poulenc Textile | ACRYLIC FIBERS AND ACRYLIC WIRES WITH HIGH SHRINK CAPACITY AND METHOD OF MANUFACTURE THEM. |
JPS59199809A (en) * | 1983-04-20 | 1984-11-13 | Japan Exlan Co Ltd | Polyacrylonitrile yarn having high strength and its preparation |
JPS6197422A (en) * | 1984-10-16 | 1986-05-15 | Nikkiso Co Ltd | High-strength carbon fiber and its production |
IT1273481B (en) * | 1995-02-01 | 1997-07-08 | Montefibre Spa | PROCESS FOR THE PRODUCTION OF ACRYLIC FIBER USING A NEW TYPE SUPPLY HEAD |
CN112410898A (en) * | 2020-11-26 | 2021-02-26 | 常熟市正太纺织有限公司 | Fur-like fiber fabric with softness and high glossiness and preparation method thereof |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
BE513901A (en) * | 1951-09-08 | 1900-01-01 | ||
GB910994A (en) * | 1960-02-23 | 1962-11-21 | Kurashiki Rayon Kk | Method of heat treatment of artificial filaments |
US3124631A (en) * | 1961-03-22 | 1964-03-10 | Process for providing high density dry spun | |
FR1381825A (en) * | 1963-02-06 | 1964-12-14 | Chemistrand Ltd | Improved method and apparatus for the manufacture and treatment of synthetic fibers and fabrics containing such fibers |
IL21472A (en) * | 1963-06-06 | 1968-02-26 | Monsanto Co | Wet-spinning of synthetic vinyl polymers |
-
1966
- 1966-12-12 US US600722A patent/US3523150A/en not_active Expired - Lifetime
-
1967
- 1967-12-11 IL IL29110A patent/IL29110A/en unknown
- 1967-12-11 GB GB56243/67A patent/GB1193170A/en not_active Expired
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0144793B1 (en) | 1983-12-05 | 1988-10-12 | AlliedSignal Inc. | High tenacity and modulus polyacrylonitrile fiber and method |
EP0144983A2 (en) * | 1983-12-10 | 1985-06-19 | Stamicarbon B.V. | Process for preparing polyacrylonitrile articles having high tensile strength and modulus |
EP0144983B1 (en) * | 1983-12-10 | 1987-10-28 | Stamicarbon B.V. | Process for preparing polyacrylonitrile articles having high tensile strength and modulus |
EP0154217B1 (en) | 1984-02-25 | 1989-09-20 | Hoechst Aktiengesellschaft | Monofilament and bristles from acrylonitrile homo or copolymers and process for manufacturing them |
US6228966B1 (en) | 1996-12-11 | 2001-05-08 | Acordis Kehlheim Gmbh | High-strength high-modulus polyacrylonitrile fibers, method for their production and use |
Also Published As
Publication number | Publication date |
---|---|
IL29110A (en) | 1971-05-26 |
US3523150A (en) | 1970-08-04 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PS | Patent sealed [section 19, patents act 1949] | ||
PCNP | Patent ceased through non-payment of renewal fee |