GB864308A - Process for the manufacture of heat-resistant polyvinyl alcohol filaments - Google Patents
Process for the manufacture of heat-resistant polyvinyl alcohol filamentsInfo
- 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
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.
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)
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)
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)
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 |
-
0
- NL NL223899D patent/NL223899A/xx unknown
- NL NL106536D patent/NL106536C/xx active
-
1957
- 1957-01-16 DE DEF22144A patent/DE1052056B/en active Pending
-
1958
- 1958-01-14 GB GB134058A patent/GB864308A/en not_active Expired
- 1958-01-15 FR FR1199296D patent/FR1199296A/en not_active Expired
Cited By (2)
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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