GB864308A - Process for the manufacture of heat-resistant polyvinyl alcohol filaments - Google Patents

Process for the manufacture of heat-resistant polyvinyl alcohol filaments

Info

Publication number
GB864308A
GB864308A GB134058A GB134058A GB864308A GB 864308 A GB864308 A GB 864308A GB 134058 A GB134058 A GB 134058A GB 134058 A GB134058 A GB 134058A GB 864308 A GB864308 A GB 864308A
Authority
GB
United Kingdom
Prior art keywords
polyvinyl alcohol
thread
acid
drum
filaments
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
GB134058A
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.)
Hoechst AG
Original Assignee
Hoechst AG
Farbwerke Hoechst AG
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 Hoechst AG, Farbwerke Hoechst AG filed Critical Hoechst AG
Publication of GB864308A publication Critical patent/GB864308A/en
Expired legal-status Critical Current

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
    • D01F1/00—General methods for the manufacture of artificial filaments or the like
    • D01F1/02—Addition of substances to the spinning solution or to the melt
    • D01F1/10—Other agents for modifying properties
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K3/00—Use of inorganic substances as compounding ingredients
    • C08K3/32—Phosphorus-containing compounds
    • 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
    • D01F6/14—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 alcohols, e.g. polyvinyl alcohol, or of their acetals or ketals

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Textile Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Health & Medical Sciences (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Artificial Filaments (AREA)

Abstract

Polyvinyl alcohol filaments having improved heat-stability are made by incorporating in an aqueous spinning solution of polyvinyl alcohol an alkali metal phosphate of acid reaction and/or a condensed alkali metal phosphate of acid, neutral or alkaline reaction in an amount of 0,3-10%, calculated on the polyvinyl alcohol, and spinning the resulting solution into filaments by the wet- or dry-spinning process. The condensed phosphates may be pyrophosphates, metaphosphates, tri- or tetra-metaphosphates, isometaphosphates, tri- or tetra-polyphosphates (e.g. Graham's or Kurrol's Salt), or potassium metaphosphate glasses. If a polyphosphate of alkaline reaction is added, the spinning solution may be adjusted to a pH of 5,0-7,5 by the addition of an acid phosphate or pyrophosphate or of citric or phosphoric acid. The spun filaments are subjected to cold- or hot-stretching, then to a heat-treatment and finally to a hardening treatment in a bath containing a mono- or di-aldehyde. In examples, an aqueous polyvinyl alcohol solution containing the phosphate addition is spun through a tantalum jet into an aqeous sodium sulphate precipitating bath and the resulting thread is stretched, while still wet, between roller-trios to four times its original length. The stretched thread is then passed 40 times round a drum heated to 110 DEG C., passed through a stretching tube heated to 230 DEG C. and then wound 140 times round a drum heated to 230 DEG -235 DEG C., the thread being stretched 40% between the stretching tube and the drum. After leaving the hot drum, the thread is wound on a bobbin at a speed such that the total stretch is 6,2 times its original length. The wound product, in hank form, is then hardened in a bath containing 9% of formaldehyde, 20% of sulphuric acid, 22% of sodium sulphate and 49% of water, and is finally rinsed in cold or warm water and dried.
GB134058A 1957-01-16 1958-01-14 Process for the manufacture of heat-resistant polyvinyl alcohol filaments Expired GB864308A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEF22144A DE1052056B (en) 1957-01-16 1957-01-16 Process for the production of boil-proof, heat-resistant threads, foils or fibers from polyvinyl alcohol

Publications (1)

Publication Number Publication Date
GB864308A true GB864308A (en) 1961-03-29

Family

ID=7090334

Family Applications (1)

Application Number Title Priority Date Filing Date
GB134058A Expired GB864308A (en) 1957-01-16 1958-01-14 Process for the manufacture of heat-resistant polyvinyl alcohol filaments

Country Status (4)

Country Link
DE (1) DE1052056B (en)
FR (1) FR1199296A (en)
GB (1) GB864308A (en)
NL (2) NL106536C (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113502597A (en) * 2021-06-28 2021-10-15 南通大学 Flexible high-infrared-reflectivity yttrium manganate nanofiber membrane and preparation method thereof

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1401375A (en) * 1964-04-22 1965-06-04 Rhodiaceta Process for the acetalization of threads based on polyvinyl alcohol

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2516980A (en) * 1950-08-01 Hugh w
US2610360A (en) * 1950-04-22 1952-09-16 Du Pont Water-resistant polyvinyl alcohol filament and process for producing same
DE932626C (en) * 1951-03-17 1955-09-05 Kurashiki Rayon Company Ltd Process for the production of artificial structures, such as threads or fibers, from polyvinyl alcohol

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113502597A (en) * 2021-06-28 2021-10-15 南通大学 Flexible high-infrared-reflectivity yttrium manganate nanofiber membrane and preparation method thereof
CN113502597B (en) * 2021-06-28 2022-09-16 南通大学 Flexible high-infrared-reflectivity yttrium manganate nanofiber membrane and preparation method thereof

Also Published As

Publication number Publication date
NL106536C (en)
DE1052056B (en) 1959-03-05
NL223899A (en)
FR1199296A (en) 1959-12-11

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