CH142749A - Process for the production of a new cellulose derivative. - Google Patents

Process for the production of a new cellulose derivative.

Info

Publication number
CH142749A
CH142749A CH142749DA CH142749A CH 142749 A CH142749 A CH 142749A CH 142749D A CH142749D A CH 142749DA CH 142749 A CH142749 A CH 142749A
Authority
CH
Switzerland
Prior art keywords
cellulose derivative
cellulose
new
production
dyes
Prior art date
Application number
Other languages
German (de)
Inventor
Gesellschaft Fuer Chemis Basel
Original Assignee
Chem Ind Basel
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 Chem Ind Basel filed Critical Chem Ind Basel
Publication of CH142749A publication Critical patent/CH142749A/en

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Classifications

    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08B—POLYSACCHARIDES; DERIVATIVES THEREOF
    • C08B15/00—Preparation of other cellulose derivatives or modified cellulose, e.g. complexes
    • C08B15/05—Derivatives containing elements other than carbon, hydrogen, oxygen, halogens or sulfur
    • C08B15/06—Derivatives containing elements other than carbon, hydrogen, oxygen, halogens or sulfur containing nitrogen, e.g. carbamates

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  • Chemical & Material Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Biochemistry (AREA)
  • Materials Engineering (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Treatments For Attaching Organic Compounds To Fibrous Goods (AREA)
  • Polysaccharides And Polysaccharide Derivatives (AREA)

Description

  

  Verfahren zur Herstellung eines neuen Zellulosederivates.    Es wurde befunden, dass man ein neues  Zellulosederivat erhält, wenn man auf Zellu  lose unter Beibehaltung der äussern Struktur  Phenylisocyanat einwirken lässt.  



  Die Zellulose ist äusserlich unverändert.  hat an Gewicht zugenommen und ist stick  stoffhaltig. Das neue Zellulosedc rivat wird  von basischen Farbstoffen ohne Beizmittel  kräftig angefärbt. hat auch zu Acetatseide  farbstoffen Verwandtschaft, währenddem  Direktfarbstoffe kaum aufgenommen werden.  Das neue Produkt kann als Rohstoff zur  Herstellung von Textilfasern verwendet  werden. Indesson wird der Schutz für das  angegebene Verfahren nur soweit bean  sprucht als es sich nicht um eine für die  Textilindustrie in Betracht kommende Be  handlung von Textilfasern zum Zwecke de  ren Veredlung handelt.  



  Beispiel 1:  Man legt im Vakuum getrocknete Zellu  lose (Zellstoff. Baumwolle, Linters. Viskose)  in Phenvlisocyanat ein und erwärmt unter    Zuhabe einer beringen Menge troelieinen     Py-          en     ridins s auf 80 . Nach vier Stundun wird     da-          überschüssige    Isocyanat im Vakuum all  destilliert und das neue Zellulosederivat  durch Waschen mit heissem Alkohol von den  verbleibenden Resten Pyridin und von etwa  gebildetem Diphenylharmstoff befreit.    Beispiel 2:    Man legt Zellulose in eine Mischung von  90 Teilen Phenylisocyanat und I0 Teilen  Pyridin ein. Maii buh ässt vier Tage iii der    Mischung und entfernt den Übcrschuss voll  Phenylisocyant und Pyridin durch Ab  destillieren im Vakuum oder durch Ab  schleudern.

   Man wäscht schliesslich mit  heissem Alkohol.  



  Ein Produkt mit gleichen Eigenschaften  wird erhalten. wenn die ssehandlung der  Zellulose mit Phenvlisocyant in Abwesen  heit von Pyridin, in Gegenwart von Kataly     -          satoren.    wie Chlorzink. oder von     Verdün-          nungsnmitteln    durchgeführt wird.



  Process for the production of a new cellulose derivative. It was found that a new cellulose derivative is obtained if phenyl isocyanate is allowed to act on cellulose while retaining the external structure.



  The cellulose is externally unchanged. has gained weight and contains nitrogen. The new cellulose derivative is strongly colored by basic dyes without a mordant. is also related to acetate silk dyes, whereas direct dyes are hardly absorbed. The new product can be used as a raw material for the manufacture of textile fibers. However, protection for the specified process is only claimed insofar as it does not involve a treatment of textile fibers for the purpose of their refinement that is suitable for the textile industry.



  Example 1: Cellulose (cellulose, cotton, linters, viscose) which has been dried in a vacuum is placed in phenyl isocyanate and heated to 80 with the addition of a ring-shaped amount of troeline pyridine. After four hours, the excess isocyanate is all distilled off in vacuo and the new cellulose derivative is freed from the remaining pyridine and any diphenylharm that has formed by washing with hot alcohol. Example 2: Cellulose is placed in a mixture of 90 parts of phenyl isocyanate and 10 parts of pyridine. Maii buh soaks the mixture for four days and removes the excess phenyl isocyanate and pyridine by distilling off in vacuo or by centrifuging.

   Finally, wash with hot alcohol.



  A product with the same properties is obtained. if the cellulose is treated with phenolic isocyanate in the absence of pyridine, in the presence of catalysts. like zinc chloride. or by diluents.

Claims (1)

PATENTANSPRUCH: Verfahren zur Herstellung eines neuen Zellulosederivates. dadurch gekennzeichnet. dass man auf Zellulose unter Beibehaltung der äussern Struktur Phenylisocyanat ein wirken lässt. Die Zellulose ist äusserlich unverändert. hat an Gewicht zugenommen und ist stick stoffhaltig. Das neue Zellulosederivat wird von basischen Farbstoffen ohne Beizmittel kräftig angefärbt, hat auch zu Acetatseide farbstoffen Verwandtschaft. währenddem Direktfarbstoffe kaum aufgenommen wer den. Das neue Produkt kann als Rohstoff zur Herstellung von Textilfasern verwendet werden. PATENT CLAIM: Process for the production of a new cellulose derivative. characterized. that phenyl isocyanate is allowed to act on cellulose while maintaining the external structure. The cellulose is externally unchanged. has gained weight and contains nitrogen. The new cellulose derivative is strongly colored by basic dyes without a mordant and is also related to acetate silk dyes. while direct dyes were hardly absorbed. The new product can be used as a raw material for the manufacture of textile fibers. Indessen wird der Schutz für das angegebene Verfahren nur soweit bean sprucht, als es sich nicht um eine für die Textilindustrie in Betracht kommende Be handlung von Textilfasern znm Zwecke de ren Veredlung handelt. In the meantime, protection for the specified process is only claimed insofar as it does not involve a treatment of textile fibers for the purpose of their refinement that is suitable for the textile industry.
CH142749D 1928-08-08 1928-08-08 Process for the production of a new cellulose derivative. CH142749A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH142749T 1928-08-08

Publications (1)

Publication Number Publication Date
CH142749A true CH142749A (en) 1930-10-15

Family

ID=4399466

Family Applications (1)

Application Number Title Priority Date Filing Date
CH142749D CH142749A (en) 1928-08-08 1928-08-08 Process for the production of a new cellulose derivative.

Country Status (1)

Country Link
CH (1) CH142749A (en)

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