DE401449C - Process for preserving the hydrate or etherhydrate skins of cellulose - Google Patents

Process for preserving the hydrate or etherhydrate skins of cellulose

Info

Publication number
DE401449C
DE401449C DES64411D DES0064411D DE401449C DE 401449 C DE401449 C DE 401449C DE S64411 D DES64411 D DE S64411D DE S0064411 D DES0064411 D DE S0064411D DE 401449 C DE401449 C DE 401449C
Authority
DE
Germany
Prior art keywords
cellulose
hydrate
preserving
etherhydrate
skins
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
DES64411D
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.)
FR DES CRINS ARTIFICIELS SOC
Original Assignee
FR DES CRINS ARTIFICIELS 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
Priority to FR582808D priority Critical patent/FR582808A/en
Application filed by FR DES CRINS ARTIFICIELS SOC filed Critical FR DES CRINS ARTIFICIELS SOC
Priority to DES64411D priority patent/DE401449C/en
Application granted granted Critical
Publication of DE401449C publication Critical patent/DE401449C/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J7/00—Chemical treatment or coating of shaped articles made of macromolecular substances
    • C08J7/04—Coating
    • C08J7/06—Coating with compositions not containing macromolecular substances
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J2301/00—Characterised by the use of cellulose, modified cellulose or cellulose derivatives
    • C08J2301/06—Cellulose hydrate

Landscapes

  • Chemical & Material Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Packages (AREA)

Description

AUSGEGEBEN
AM 3. SEPTEMBER 1924ISSUED
ON SEPTEMBER 3, 1924

(S 64411(S 64411

Bekanntlich ziehen sich die Hydrat- oder j Ätherhydrathäutchen der Zellulose, ebenso wie I diejenigen, die man durch Koagulieren einer : Zelluloselösung .in einem wässerigen Medium > erhält, sehr stark zusammen, wobei sie ihr Hydratwasser verlieren.It is known that attract the hydrate or j Ätherhydrathäutchen of cellulose, as well as I those obtained by coagulating a: gets cellulose solution .in an aqueous medium>, very strong together, losing their hydration.

Erfolgt diese vollkommene Austrocknung auf einer Unterlage, so nimmt das Häutchen genau deren Form an und behält diese Form, selbst wenn es von neuem angefeuchtet wird. Diese Eigentümlichkeit ist insbesondere zum Verkapseln von Behältern, deren vollkommene Abdichtung man sicherstellen will, ausgenutzt | worden.If this complete drying out takes place on a surface, the membrane takes off adapts to its exact shape and retains this shape even if it is moistened again. This peculiarity is in particular for the encapsulation of containers, their perfect Sealing one wants to ensure, exploited | been.

I'm sich nun fabrikmäßigen Anwendungen dieser Art anzupassen, müssen die Häutchen bis zum Augenblicke ihrer Verwendung gegen jegliche Veränderung ihres Zustandes geschützt werden. Das ist bisher dadurch erreicht worden, daß man die Häutchen in einer Flüssigkeit unterbrachte, die aseptisch gemacht war, um die Entwicklung von Schimmel zu verhüten, der die feuchte Zellulose sonst verändern würde. : In dieser Verpackung wurde die Zellulose demI'm now factory-style applications to adapt to this type, the membranes must oppose their use until the moment they are used any change in their condition will be protected. This has so far been achieved by that the membranes were placed in a liquid which had been made aseptic prevent the development of mold which would otherwise alter the moist cellulose. : In this packaging, the cellulose was dem

as Handel übergeben. Dieses Verfahren hat aber seine.Unzuträglichkeiten. Abgesehen von dem sehr hohen Preise ist die Verpackung zerbrech- ι lieh und nimmt viel Raum ein.
DieErfindung betrifft nun ein viel bequemeres :handed over to trade. However, this procedure has its drawbacks. Apart from the very high price, the packaging is fragile and takes up a lot of space.
The invention now relates to a much more convenient one:

und weniger lästiges Verfahren, durch welches das Haltbarmachen der Häutchen mit dem gewünschten Feuchtigkeitsgrade bis zum Augenblick der Verwendung ermöglicht wird.and less troublesome process by which to preserve the pellicle with the desired Moisture levels up to the moment of use is made possible.

Man benutzt zu diesem Zwecke die Eigenschaft der zerfiießlichen Körper, sich in dem Wasser des Hydrats oder der Ätherhydrate der Zellulose aufzulösen, ohne ihre Zusammensetzung zu ändern, unter der einzigen Bedingung, daß sie in einer normalen Atmosphäre aufbewahrt werden. Als zerfließliche Körper verwendet man solche, die eine antiseptische Wirkung ausüben, oder aber man fügt, wenn die Körper diese Eigenschaft nicht haben, einen Stoff hinzu, welcher die Entwicklung der Schimmel- und Gärungsstoffe verhindert.For this purpose one uses the property of the dissolvable bodies, oneself in the To dissolve water of the hydrate or the ether hydrates of cellulose without their composition to change, provided that they are kept in a normal atmosphere. As a dissolving body you use those that have an antiseptic effect, or you add when the bodies do not have this property, a substance which the development of the additive Prevents mold and fermentation.

Man kann beispielsweise die Häutchen in eine 4oprozentige Magnesiumchloridlösung eintauchen, so daß sie vollständig damit getränkt werden; man läßt sie dann einfach abtropfen, bis sie den Überschuß an Lösung abgegeben haben: hierauf können sie eingepackt und wie beliebige Gegenstände versendet werden. Im Augenblicke ihrer Verwendung braucht man sie nur in Wasser anzufeuchten, um den größten Teil des zerfließenden Körpers zu entfernen, bevor man sie auf den abzuformenden Gegenstand bringt; s,:e verhalten sich beim Trocknen wie Häutchen, die im Wasser aufbewahrt worden sind.For example, the skin can be immersed in a 4% magnesium chloride solution so that it is completely soaked in it; they are then simply allowed to drain until they have given up the excess of solution: they can then be packed up and shipped like any other object. At the moment of use it is only necessary to moisten them in water to remove most of the dissolving body before placing them on the object to be molded; s, e behave during drying as cuticles that have been kept in the water.

Claims (1)

Patent-Anspruch:Patent claim: Verfahren zum Haltbarmachen der Hydrat- oder Ätherhydrathäutchen der Zellulose, dadurch gekennzeichnet, daß man die Häutchen mittels Lösungen zerfließlicher und antiseptischer Körper tränkt.Process for preserving the hydrate or ether-hydrate membranes of cellulose, characterized in that the membranes are more deliquescent by means of solutions and antiseptic body soaks.
DES64411D 1923-11-27 1923-11-27 Process for preserving the hydrate or etherhydrate skins of cellulose Expired DE401449C (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
FR582808D FR582808A (en) 1923-11-27 1923-11-08 Process for the preservation of films of hydrate or hydrated ethers of cellulose
DES64411D DE401449C (en) 1923-11-27 1923-11-27 Process for preserving the hydrate or etherhydrate skins of cellulose

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DES64411D DE401449C (en) 1923-11-27 1923-11-27 Process for preserving the hydrate or etherhydrate skins of cellulose

Publications (1)

Publication Number Publication Date
DE401449C true DE401449C (en) 1924-09-03

Family

ID=7497169

Family Applications (1)

Application Number Title Priority Date Filing Date
DES64411D Expired DE401449C (en) 1923-11-27 1923-11-27 Process for preserving the hydrate or etherhydrate skins of cellulose

Country Status (2)

Country Link
DE (1) DE401449C (en)
FR (1) FR582808A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE740891C (en) * 1939-04-30 1943-10-30 Ig Farbenindustrie Ag Disinfectant supply form

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE740891C (en) * 1939-04-30 1943-10-30 Ig Farbenindustrie Ag Disinfectant supply form

Also Published As

Publication number Publication date
FR582808A (en) 1924-12-29

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