GB1042305A - Vinylidene fluoride yarns and process for producing them - Google Patents
Vinylidene fluoride yarns and process for producing themInfo
- Publication number
- GB1042305A GB1042305A GB7145/64A GB714564A GB1042305A GB 1042305 A GB1042305 A GB 1042305A GB 7145/64 A GB7145/64 A GB 7145/64A GB 714564 A GB714564 A GB 714564A GB 1042305 A GB1042305 A GB 1042305A
- Authority
- GB
- United Kingdom
- Prior art keywords
- yarn
- bath
- dimethyl
- dried
- polyvinylidene fluoride
- 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
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L27/00—Compositions of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Compositions of derivatives of such polymers
- C08L27/02—Compositions of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Compositions of derivatives of such polymers not modified by chemical after-treatment
- C08L27/12—Compositions of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Compositions of derivatives of such polymers not modified by chemical after-treatment containing fluorine atoms
- C08L27/16—Homopolymers or copolymers or vinylidene fluoride
-
- 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
- D01F6/08—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 halogenated hydrocarbons
- D01F6/12—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 halogenated hydrocarbons from polymers of fluorinated hydrocarbons
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)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Artificial Filaments (AREA)
Abstract
1,042,305. Polyvinylidene fluoride filaments. PENNSALT CHEMICALS CORPORATION. Feb. 20, 1964 [March 14, 1963], No. 7145/64. Heading B5B. In a process for the manufacture of polyvinylidene fluoride yarns, a solution containing 10-50 parts by weight of polyvinylidene fluoride in 100 parts by weight of a polar organic solvent is extruded into a bath containing, per volume, 50-99À95% of water and 50-0À05% of one or more of: an alcohol, a glycol, glycerol, a polyglycol ether, dimethyl sulphoxide, a ketone or an amide or substituted amide, and the coagulated yarn is withdrawn, dried and stretched. The bath is maintained at a temperature of from room temperature to below the boiling-point of the bath component of lowest boiling-point, and the spun solution remains therein for a time sufficient for the surface of the yarn to harden but insufficient to cause the yarn to become hard and opaque. The polyvinylidene fluoride may be a homopolymer or a copolymer containing at least 95 mole per cent of vinylidene fluoride. Many polar organic solvents are specified, the preferred solvent being a mixture of a liquid amide, e.g. dimethyl-formamide with a ketone. The organic component of the spinning bath is preferably the solvent system used for the spinning solution. Specified compounds are methanol, ethanol, propanol, butanol, pentanol, acetone, methyl ethyl ketone, dimethylacetamide, dimethyl-formamide, N- methyl-2-pyrrolidone and dimethyl-sulphoxide. The coagulated yarn is dried in air to remove water and solvents, and may optionally be subjected to washing and vacuum drying. The dried yarn is preferably twisted before drawing. In one embodiment, yarn is fed from the spinning bath, through an oven at 180-250 F. and then, at a higher speed, through a second oven at 500-800 F. The yarn is then washed with water at 100-180 F., twisted, vacuum dried, and drawn, e.g. 3-10 times in an oven at 250-400 F. The yarn has a tenacity of more than 2À5 g/denier.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US26503663A | 1963-03-14 | 1963-03-14 | |
US386810A US3376370A (en) | 1963-03-14 | 1964-07-07 | Vinylidene fluoride yarns and process for producing them |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1042305A true GB1042305A (en) | 1966-09-14 |
Family
ID=26950918
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB7145/64A Expired GB1042305A (en) | 1963-03-14 | 1964-02-20 | Vinylidene fluoride yarns and process for producing them |
Country Status (5)
Country | Link |
---|---|
US (1) | US3376370A (en) |
BE (1) | BE644945A (en) |
DE (1) | DE1256838B (en) |
GB (1) | GB1042305A (en) |
NL (1) | NL146226B (en) |
Families Citing this family (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
NL127087C (en) * | 1964-10-21 | 1900-01-01 | ||
US3454526A (en) * | 1964-12-10 | 1969-07-08 | Bayer Ag | Method for solution spinning polycarbonate filaments |
FR2232621B1 (en) * | 1973-06-06 | 1976-04-23 | Rhone Poulenc Textile | |
US4203848A (en) * | 1977-05-25 | 1980-05-20 | Millipore Corporation | Processes of making a porous membrane material from polyvinylidene fluoride, and products |
US4203847A (en) * | 1977-05-25 | 1980-05-20 | Millipore Corporation | Making porous membranes and the membrane products |
DE2837751C2 (en) * | 1978-08-30 | 1983-12-15 | Dynamit Nobel Ag, 5210 Troisdorf | Method and device for producing monofilaments from polyvinylidene fluoride |
DE2914606B2 (en) * | 1979-04-11 | 1981-06-11 | Dynamit Nobel Ag, 5210 Troisdorf | String made of plastic, process for their manufacture and use of a string with certain properties |
US4551296A (en) * | 1982-03-19 | 1985-11-05 | Allied Corporation | Producing high tenacity, high modulus crystalline article such as fiber or film |
DE3308626C2 (en) * | 1983-03-11 | 1986-02-20 | Dynamit Nobel Ag, 5210 Troisdorf | Process for the production of fibrids from thermoplastics |
JPS60231815A (en) * | 1984-04-28 | 1985-11-18 | Kureha Chem Ind Co Ltd | Vinylidene fluoride resin monofilament and its manufacture |
US8785580B2 (en) * | 2006-07-06 | 2014-07-22 | Arkema Inc. | Ultra-high molecular weight poly(vinylidene fluoride) |
US7498079B1 (en) * | 2007-06-13 | 2009-03-03 | Toray Fluorofibers (America), Inc. | Thermally stable polytetrafluoroethylene fiber and method of making same |
CN107936276B (en) * | 2017-12-14 | 2020-11-27 | 电子科技大学 | Preparation method of pyroelectric polymer film based on casting and stretching composite process |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2405008A (en) * | 1943-09-21 | 1946-07-30 | Du Pont | Treatment of oriented halogencontaining polymers |
GB581620A (en) * | 1943-09-21 | 1946-10-18 | Ici Ltd | Manufacture of shaped structures from oriented halogen-containing polymers of vinyl and vinylidene compounds |
US2531406A (en) * | 1946-10-25 | 1950-11-28 | Ind Rayon Corp | N,n-dimethyl acetamide-containing compositions |
US2821459A (en) * | 1955-06-17 | 1958-01-28 | Dow Chemical Co | Method of drying latex-spun products |
US2953818A (en) * | 1958-02-14 | 1960-09-27 | Du Pont | Process for producing polyvinyl fluoride film from mixture of polyvinyl fluoride particles and latent solvent therefor |
-
1964
- 1964-02-20 GB GB7145/64A patent/GB1042305A/en not_active Expired
- 1964-03-09 BE BE644945A patent/BE644945A/xx unknown
- 1964-03-11 DE DEP33820A patent/DE1256838B/en active Pending
- 1964-03-13 NL NL646402723A patent/NL146226B/en unknown
- 1964-07-07 US US386810A patent/US3376370A/en not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
BE644945A (en) | 1964-09-10 |
DE1256838B (en) | 1967-12-21 |
NL6402723A (en) | 1964-09-15 |
NL146226B (en) | 1975-06-16 |
US3376370A (en) | 1968-04-02 |
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