DE651853C - Gas-impermeable balloon fabric - Google Patents

Gas-impermeable balloon fabric

Info

Publication number
DE651853C
DE651853C DES115805D DES0115805D DE651853C DE 651853 C DE651853 C DE 651853C DE S115805 D DES115805 D DE S115805D DE S0115805 D DES0115805 D DE S0115805D DE 651853 C DE651853 C DE 651853C
Authority
DE
Germany
Prior art keywords
gas
fabric
impermeable
condensation
impermeable balloon
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
DES115805D
Other languages
German (de)
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.)
NOBEL FRANCAISE SOC
Original Assignee
NOBEL FRANCAISE SOC
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 NOBEL FRANCAISE SOC filed Critical NOBEL FRANCAISE SOC
Application granted granted Critical
Publication of DE651853C publication Critical patent/DE651853C/en
Expired legal-status Critical Current

Links

Classifications

    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
    • D06M15/00—Treating fibres, threads, yarns, fabrics, or fibrous goods made from such materials, with macromolecular compounds; Such treatment combined with mechanical treatment
    • D06M15/19—Treating fibres, threads, yarns, fabrics, or fibrous goods made from such materials, with macromolecular compounds; Such treatment combined with mechanical treatment with synthetic macromolecular compounds
    • D06M15/21—Macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds
    • D06M15/347—Macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds of unsaturated ethers, acetals, hemiacetals, ketones or aldehydes
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
    • D06M2101/00—Chemical constitution of the fibres, threads, yarns, fabrics or fibrous goods made from such materials, to be treated
    • D06M2101/02—Natural fibres, other than mineral fibres
    • D06M2101/04—Vegetal fibres
    • D06M2101/06—Vegetal fibres cellulosic
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
    • D06M2101/00—Chemical constitution of the fibres, threads, yarns, fabrics or fibrous goods made from such materials, to be treated
    • D06M2101/02—Natural fibres, other than mineral fibres
    • D06M2101/10—Animal fibres
    • D06M2101/12—Keratin fibres or silk

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Compositions Of Macromolecular Compounds (AREA)
  • Laminated Bodies (AREA)

Description

Die Erfindung betrifft einen gasundurchlässigen Ballonstoff, der aus einem Gewebe mit gasundurchlässigem Überzug oder mit gasundurchlässiger Einlage aus Kondensationsprodukten, die durch Kondensation von Polyvinylalkohol und mit einem Gemisch aus zwei Aldehyden, insbesondere Formaldehyd und Acetaldehyd, in Gegenwart von konzentrierter Salzsäure hergestellt wordenThe invention relates to a gas-impermeable balloon fabric made from a fabric with a gas-impermeable coating or with a gas-impermeable insert made of condensation products, that by condensation of polyvinyl alcohol and with a mixture of two aldehydes, especially formaldehyde and acetaldehyde, in the presence of concentrated hydrochloric acid

ίο sind, besteht.ίο are, exists.

Die Herstellung von Kondensationsprodukten aus Polyvinylalkohol und einem Aldehyd ist in der französischen Patentschrift 750 350 beschrieben. In analoger Weise nun werden die erfindungsgemäß verwendeten Kondensationsprodukte aus Polyvinylalkohol und zwei Aldehyden in Gegenwart von konzentrierter Salzsäure hergestellt.The production of condensation products from polyvinyl alcohol and an aldehyde is described in French patent 750 350. Now be in an analogous way the condensation products of polyvinyl alcohol and two aldehydes used according to the invention in the presence of concentrated Hydrochloric acid produced.

Ausführungsbeispiel zur Herstellung eines gemäß der Erfindung verwendeten Kondensationsproduktes: Exemplary embodiment for the production of a condensation product used according to the invention:

Man benutzt als Ausgangsmaterial ein Polyvinylacetat, dessen Viskosität bei einer Temperatur von 200 C in einer io-%igen Lösung in Äthylacetat 300 Sekunden durch eine bestimmte Ausflußöffnung beträgt. Die Ausflußzeit des gleichen Volumens Wasser bei der gleichen Temperatur beträgt 15 Sekunden; dann werden 20 kg polymerisiertes Vinylacetat, 7,2 kg Formaldehyd (40 Volumprozent), 3,8 kg Paracetaldehyd, 4,0 kg denaturierter Alkohol und 40,0 kg Salzsäure (36 °/oig) bis zur vollständigen Mischung verrührt, 20 Stunden bei gewöhnlicher Temperatur stehengelassen und die erhaltene dicke Flüssigkeit durch Wasser ausgefällt.As the starting material one uses a polyvinyl acetate whose viscosity is 300 seconds through a certain orifice at a temperature of 20 0 C in a io-% solution in ethyl acetate. The outflow time of the same volume of water at the same temperature is 15 seconds; then 20 kg of polymerized vinyl acetate, 7.2 kg of formaldehyde (40 percent by volume), 3.8 kg of paracetaldehyde, 4.0 kg of denatured alcohol and 40.0 kg of hydrochloric acid (36%) are stirred until completely mixed, for 20 hours Allowed to stand at ordinary temperature and the thick liquid obtained was precipitated by water.

Das bis zur Neutralität gewaschene und getrocknete Produkt löst sich gut in Methyloder Äthylacetat oder in einer Mischung aus gleichen Teilen Äthanol und Benzin. 'The product, washed to neutrality and dried, dissolves well in methyl or Ethyl acetate or a mixture of equal parts of ethanol and gasoline. '

Zur Herstellung des gasundurchlässigen Ballonstoffes wird nun ein geeignetes Gewebe nach irgendeinem bekannten Verfahren mit den oben beschriebenen Kondensationsprodukten überzogen. Es kann z. B. mit der vorstehend erwähnten Lösung bestrichen werden, so daß es nach dem Verdunsten der Lösungsmittel das Kondensationsprodukt als gasundurchlässigen Überzug besitzt.A suitable fabric is now used to produce the gas-impermeable balloon material by any known method with the condensation products described above overdrawn. It can e.g. B. be coated with the above-mentioned solution, so that it after evaporation of the solvent has the condensation product as a gas-impermeable coating.

Man kann auch die Lösungen des KondentSationsproduktes in an sich bekannter Weise zu' Filmen vergießen von beispielsweise 0,03 mm Stärke.One can also use the solutions of the condensation product in a manner known per se to 'cast films of, for example, 0.03 mm thick.

Ferner kann man das Kondensationsprodukt, ohne.es in den erwähnten Lösungsmit-. teln zu lösen, unmittelbar mit geeigneten Weichmachungsmitteln, z. B. Benzylalkohol oder p-Toluolsulfamid, verkneten und aus derFurthermore, the condensation product can be used without.es in the solvents mentioned. Teln to solve immediately with suitable plasticizers such. B. benzyl alcohol or p-toluenesulfamide, knead and from the

erhaltenen plastischen Masse dünne Folien auswalzen.Roll out the obtained plastic mass thin foils.

Die \rerwendung gegossener Filme oder gewalzter Folien· als gasundurchlässige Überzüge oder Einlagen geschieht nun so, daß man sie zwischen zwei oder mehrere Gewebe bringt und diese darauf unter Erwärmung anpreßt. Man erhält damit sog. doublierte Stoffe. Diese Stoffe sind auch für sehr diffuse Gase, wieThe \ r Before Using cast films or rolled sheets · as gas barrier coatings or deposits happening now so that it brings more tissue between two or and this presses against it with heating. So-called doubled fabrics are obtained. These substances are also suitable for very diffuse gases, such as

ίο Wasserstoff oder Helium, praktisch undurchlässig. Durch Verwendung von Weichmachungsmitteln sind sie auch ausreichend biegsam.ίο hydrogen or helium, practically impermeable. By using plasticizers they are also sufficiently flexible.

Sofern der Film 20 bis 22 Gewichtsprozente Weichmachungsmittel enthält, läßt ein derartiges Gewebe innerhalb 24 Stunden bei einem Druck von 30 mm Wassersäule pro Quadratmeter weniger als 2,5 g Wasserstoff diffundieren.If the film contains 20 to 22 percent by weight of plasticizer, it is allowed to enter such tissue within 24 hours at a pressure of 30 mm water column per Square meters less than 2.5 g of hydrogen diffuse.

Das in obenstehender Weise präparierte Gewebe ist gleichfalls widerstandsfähig gegen Licht und Wärme. Durch alle genannten Eigenschaften ist es daher besonders für die Herstellung von Ballonhüllen geeignet. Es kann jedoch auch in anderen Fällen, in denen gasundurchlässige Stoffe, z. B. aus Leinen, Baumwolle, Seide usw., erwünscht sind, Verwendung finden. _. ■The tissue prepared in the above manner is also resistant to Light and warmth. Because of all the properties mentioned, it is therefore particularly suitable for Manufacture of balloon envelopes suitable. However, it can also occur in other cases where gas impermeable substances, e.g. B. linen, cotton, silk, etc., are desirable use Find. _. ■

Bei Anordnung von mehreren Gewebebahnen übereinander können die Ketten der oberen und unteren Gewebebahn so gelegt werden, daß sie sich beispielsweise im Winkel von 450 kreuzen.If several fabric webs are arranged one above the other, the chains of the upper and lower fabric webs can be placed so that they cross each other at an angle of 45 °, for example.

Claims (2)

Patentansprüche:Patent claims: 1. Gasundurchlässiger Ballonstoff, bestehend aus einem mit einem Überzug aus Kondensationsprodukten, die durch Kondensation von Polyvinylalkohol mit einem Gemisch von zwei Aldehyden, insbesondere Formaldehyd und Acetaldehyd, in Gegenwart von konzentrierter Salzsäure hergestellt worden sind, versehenen Gewebe. 1. Gas-impermeable balloon fabric, consisting of one with a cover of Condensation products obtained by condensation of polyvinyl alcohol with a mixture of two aldehydes, in particular Formaldehyde and acetaldehyde, produced in the presence of concentrated hydrochloric acid, provided fabric. 2. Gasundurchlässiger Ballonstoff, bestehend aus zwei oder mehreren Gewebebahnen, die unter Verwendung eines Films aus Kondensationsprodukten, die durch Kondensation von Polyvinylalkohol 50' und einem Gemisch von Aldehyden, insbesondere Formaldehyd und Acetaldehyd, in Gegenwart von konzentrierter Salzsäure hergestellt worden sind, unter Anwendung von Druck und Hitze miteinander verbunden sind.2. Gas-impermeable balloon fabric, consisting of two or more panels of fabric, using a film of condensation products formed by condensation of polyvinyl alcohol 50 ' and a mixture of aldehydes, especially formaldehyde and acetaldehyde, in the presence of concentrated hydrochloric acid using pressure and heat with one another are connected.
DES115805D 1933-11-17 1934-10-20 Gas-impermeable balloon fabric Expired DE651853C (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR651853X 1933-11-17

Publications (1)

Publication Number Publication Date
DE651853C true DE651853C (en) 1937-10-20

Family

ID=38043084

Family Applications (1)

Application Number Title Priority Date Filing Date
DES115805D Expired DE651853C (en) 1933-11-17 1934-10-20 Gas-impermeable balloon fabric

Country Status (1)

Country Link
DE (1) DE651853C (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2635114A1 (en) * 1976-08-04 1978-02-09 Ver Seidenwebereien Ag Gas-tight coated aromatic polyamide textile fabrics - with a coating of polyester-urea!, laminated to a film e.g. of PTFE or PVC, for inflatable craft, balloons, etc.

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2635114A1 (en) * 1976-08-04 1978-02-09 Ver Seidenwebereien Ag Gas-tight coated aromatic polyamide textile fabrics - with a coating of polyester-urea!, laminated to a film e.g. of PTFE or PVC, for inflatable craft, balloons, etc.

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