DE690746C - Process for protecting stacked or rolled up nitrocellulose sheets or films against fire - Google Patents

Process for protecting stacked or rolled up nitrocellulose sheets or films against fire

Info

Publication number
DE690746C
DE690746C DE1937K0146674 DEK0146674D DE690746C DE 690746 C DE690746 C DE 690746C DE 1937K0146674 DE1937K0146674 DE 1937K0146674 DE K0146674 D DEK0146674 D DE K0146674D DE 690746 C DE690746 C DE 690746C
Authority
DE
Germany
Prior art keywords
rolled
against fire
nitrocellulose sheets
films against
protecting
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
DE1937K0146674
Other languages
German (de)
Inventor
Dr Rer Nat Edgar Fuchs
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.)
Kalle GmbH and Co KG
Original Assignee
Kalle GmbH and Co KG
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 Kalle GmbH and Co KG filed Critical Kalle GmbH and Co KG
Priority to DE1937K0146674 priority Critical patent/DE690746C/en
Application granted granted Critical
Publication of DE690746C publication Critical patent/DE690746C/en
Expired legal-status Critical Current

Links

Classifications

    • 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
    • C08K5/00—Use of organic ingredients
    • C08K5/0008—Organic ingredients according to more than one of the "one dot" groups of C08K5/01 - C08K5/59
    • C08K5/005—Stabilisers against oxidation, heat, light, ozone
    • 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
    • C08K5/00—Use of organic ingredients
    • C08K5/16—Nitrogen-containing compounds
    • C08K5/21—Urea; Derivatives thereof, e.g. biuret
    • 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
    • C08K5/00—Use of organic ingredients
    • C08K5/16—Nitrogen-containing compounds
    • C08K5/29—Compounds containing one or more carbon-to-nitrogen double bonds
    • C08K5/31—Guanidine; Derivatives thereof

Landscapes

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

Description

Verfahren zum Schutze aufgestapelter oder aufgerollter Nitrocellulosefolien oder -filme gegen Feuer Es ist bekannt, daß Harnstoff und Guanidili sowie Salze dieser Verbindungen als Feuerlöschmittel verwendet werden können. Die vorliegende Erfindung betrifft nun ein Verfahren zum Schutze aufgestapelter oder aufgerollter Nitrocellulosefolien oder -filme gegen Feuer, bei dem feuerschützende Stoffe der genannten Art zur Anwendung kommen. Wenn man in bekannter Weise auf eine zur Entzündung gekommene Rolle bzw. :einen Stapel aus Nitrocellulosefolen die erwähnten Stoffe schüttet, so tritt zwar äußerlich eine Löschung ein, jedoch zersetzt sich das Innere der Rolle bzw. des Stapels weiter, so daß das Material vernichtet wird. Dies wird durch das neue Verfahren verhindert. Erfindungsgemäß werden in die Stapel bzw. Rollen aus Nitrocellulosefolien oder -filmen flächige Materiahen, wie Cellulosehydratfolien, Gewebe, Papier, eingeschossen, welche mit Harnstoff oder Guanidin imprägniert sind. An Stelle des Harnstoffes bzw. Guanidins können auch Salze dieser Verbindungen verwendet werden, welche beim Erhitzen Schmelzen bilden. Besonders gut eignen sich Phosphate. Diese Salze werden am besten in der Weise den flächigen Gebilden einverleibt, daß man diese durch wäßrige Lösungen der Salze hindurchzieht und sie dann trocknet. Tritt an einer Stelle einer in der ,geschilderten Weise geschützten Filmrolle bzw. seines Stapels eine Entzündung ein, so bildet sich aus den dieser Stelle zunächst befindlichen Harnstoff- oder Guanidinverbindungeneine Schmelze, die die Flamme sofort erstickt und jede Weiterverbreitung des Feuers unmöglich macht.Process for protecting stacked or rolled up nitrocellulose sheets or films against fire It is known that urea and guanidili, as well as salts these compounds can be used as fire extinguishing agents. The present The invention now relates to a method for protecting stacked or rolled-up items Nitrocellulose sheets or films against fire, in which the fire-protecting substances of the mentioned type are used. If you look in a known manner on one to inflammation come roll or: a stack of nitrocellulose sheets the substances mentioned pours, an extinction occurs on the outside, but the inside decomposes the roll or the stack further, so that the material is destroyed. this will prevented by the new procedure. According to the invention are in the stacks or roles Flat materials made from nitrocellulose sheets or films, such as cellulose hydrate sheets, Fabric, paper, shot in, which is impregnated with urea or guanidine. Salts of these compounds can also be used instead of urea or guanidine which form melts when heated. Phosphates are particularly suitable. These salts are best incorporated into the flat structures in such a way that they are drawn through aqueous solutions of the salts and then dried. If a film roll or film that is protected in the manner described occurs If an inflammation occurs in its stack, then this point initially develops from it urea or guanidine compounds present a melt, which the flame immediately suffocates and makes any spread of the fire impossible.

Claims (1)

PATENTANSPRUCH: Verfahren zum Schutze aufgestapelter oder aufgerollter Nitrocellulosefolienoder -filme gegen Feuer, dadurch gekennzeic net, daß man zwischen die einzelnen
gen des Materials fläcbig-e Gebilde einschießt, die mit Harnstoff oder Guanidin, bzw. beim Erhitzen Schmelzen liefernden Salze dieser Stoffe, insbesondere Phosphaten, imprägniert sind. t:'PATENT CLAIM: Process for protecting stacked or rolled up nitrocellulose films or -films against fire, thereby marked net that one between the individual
gene of the material shoots in flat-like structures that are impregnated with urea or guanidine, or salts of these substances, in particular phosphates, which produce melts when heated. t: '
DE1937K0146674 1937-05-26 1937-05-26 Process for protecting stacked or rolled up nitrocellulose sheets or films against fire Expired DE690746C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE1937K0146674 DE690746C (en) 1937-05-26 1937-05-26 Process for protecting stacked or rolled up nitrocellulose sheets or films against fire

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE1937K0146674 DE690746C (en) 1937-05-26 1937-05-26 Process for protecting stacked or rolled up nitrocellulose sheets or films against fire

Publications (1)

Publication Number Publication Date
DE690746C true DE690746C (en) 1940-05-06

Family

ID=7251245

Family Applications (1)

Application Number Title Priority Date Filing Date
DE1937K0146674 Expired DE690746C (en) 1937-05-26 1937-05-26 Process for protecting stacked or rolled up nitrocellulose sheets or films against fire

Country Status (1)

Country Link
DE (1) DE690746C (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2550134A (en) * 1947-05-10 1951-04-24 Us Finishing Company Flame resistant fabric

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2550134A (en) * 1947-05-10 1951-04-24 Us Finishing Company Flame resistant fabric

Similar Documents

Publication Publication Date Title
DE690746C (en) Process for protecting stacked or rolled up nitrocellulose sheets or films against fire
DE862643C (en) Process for the production of threads u. Like. From cellulose derivatives by the dry spinning process in a closed system
DE657115C (en) Method for loosely needling fabrics in tenter machines
DE640312C (en) Process for producing a propellant charge for projectiles
AT208278B (en) Process for the impregnation of filter fabrics
AT144517B (en) Means for removing gases when generating a high vacuum.
DE693560C (en) Fire retardants
DE423176C (en) Process for the manufacture of primers
DE636802C (en) Process for the production of a rubbing surface from amorphous phosphorus for purpose
DE720512C (en) Process for rendering combustible materials non-flammable
AT154939B (en) Oxygen breathing apparatus in which the oxygen is generated by thermal decomposition.
DE487295C (en) Fireworks and their method of manufacture
DE645240C (en) Process for rendering combustible materials non-flammable
DE642028C (en) Process for preventing the crawling of multi-layer woven or knitted fabrics
DE562549C (en) Process for drying hoses made from regenerated cellulose
DE421863C (en) Process for the preservation and regeneration of celluloid and objects made therefrom
AT83083B (en) Light bomb.
DE484747C (en) Process for the production of flame-retardant celluloid foils or films
DE857533C (en) Oxide cathode for electrical discharge vessels
DE532083C (en) Wound protection plasters
AT157851B (en) Process for the production of luminous material for cathode ray screens u. like
AT138752B (en) Process for the production of non-rolling material by gluing together cellulose hydrate films with paper, cardboard, fabric, metal or the like.
DE651211C (en) Pre-bath for photographic desensitization, which contains colorless, water-soluble derivatives of the anthraquinones or phenanthrenequinones
AT156752B (en) Process for the manufacture of translucent or transparent photocathodes.
AT128612B (en) Process for producing safety fuses.