GB1042305A - Vinylidene fluoride yarns and process for producing them - Google Patents

Vinylidene fluoride yarns and process for producing them

Info

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
Application number
GB7145/64A
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.)
Pennwalt Corp
Original Assignee
Pennsalt Chemical Corp
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 Pennsalt Chemical Corp filed Critical Pennsalt Chemical Corp
Publication of GB1042305A publication Critical patent/GB1042305A/en
Expired legal-status Critical Current

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.
GB7145/64A 1963-03-14 1964-02-20 Vinylidene fluoride yarns and process for producing them Expired GB1042305A (en)

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)

* Cited by examiner, † Cited by third party
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)

* Cited by examiner, † Cited by third party
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

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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