CH148481A - Process for the production of a new cellulose derivative. - Google Patents

Process for the production of a new cellulose derivative.

Info

Publication number
CH148481A
CH148481A CH148481DA CH148481A CH 148481 A CH148481 A CH 148481A CH 148481D A CH148481D A CH 148481DA CH 148481 A CH148481 A CH 148481A
Authority
CH
Switzerland
Prior art keywords
cellulose derivative
production
epichlorohydrin
new cellulose
new
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 CH148481A publication Critical patent/CH148481A/en

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08B—POLYSACCHARIDES; DERIVATIVES THEREOF
    • C08B11/00—Preparation of cellulose ethers
    • C08B11/02—Alkyl or cycloalkyl ethers
    • C08B11/04—Alkyl or cycloalkyl ethers with substituted hydrocarbon radicals
    • C08B11/08—Alkyl or cycloalkyl ethers with substituted hydrocarbon radicals with hydroxylated hydrocarbon radicals; Esters, ethers, or acetals thereof

Landscapes

  • 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)
  • Polysaccharides And Polysaccharide Derivatives (AREA)

Description

  

  Verfahren zur Herstellung eines neuen     Zellalosedei:ivates.       Es wurde gefunden, dass ein neuer     Zellu-          loseabkömmling    entsteht, wenn man Zellulose  mit     Epichlorhydrin    behandelt. Die Reaktion,  die darin besteht, dass die Zellulose unter  Aufspaltung des     Oxydringes    in einen     Oxy-          alkyläther    verwandelt wird, wird zweckmässig  durch die Gegenwart eines geeigneten     Kata-          lysators,    wie zum Beispiel Schwefelsäure oder  Borsäure beziehungsweise die entsprechenden       Chlorhydrinester,    beschleunigt.

   Der neue       Zelluloseabkömmling    kann als     Ausgangsstoff     zur Herstellung von Textilien verwendet  werden. Indessen wird der Schutz für das  angegebene Verfahren nur soweit beansprucht,  als es sich nicht um eine für die Textilindu  strie in Betracht kommende Behandlung von  Textilfasern zum Zwecke von deren Vered  lung handelt.  



       Beispiel     20     gr    gebleichte     Linters    werden mit einer  10     o/oigen    wässerigen     Borsäurelösung    bei  60-70<B>0</B> imprägniert, gut     abgepresst    und    dann getrocknet. Das so vorbehandelte Ma  terial wird in einem geeigneten Apparat  während 50 Stunden bei einer     Temperatur    von  120-130 o     Epichlorhydrindämpfen    ausgesetzt.  <I>Beispiel 2:</I>  100     gr        Epichlorhydrin    werden unter guter  Kühlung allmählich mit 3     gr    konzentrierter  Schwefelsäure versetzt.

   Die so erhaltene  Lösung des     Chlorhydrinschwefelsäureesters     in     Epichlorhydrin    wird in einem Druckgefäss  mit 10     gr        Linters    während 35     Stunden    auf  130-140 o erhitzt. Nach beendigter Reak  tion werden die     Linters        abgepresst    und sorg  fältig ausgewaschen.  



  Der     neue        Zelluloseabkömmling    ist rein weiss  und enthält eine
EMI0001.0033  
    in welcher das Halogenatom beweglich ist.



  Process for the production of a new cell alose dei: ivates. It has been found that a new derivative of cellulose arises when cellulose is treated with epichlorohydrin. The reaction, which consists in the cellulose being converted into an oxyalkyl ether with splitting of the oxide ring, is expediently accelerated by the presence of a suitable catalyst, such as sulfuric acid or boric acid or the corresponding chlorohydrin ester.

   The new cellulose derivative can be used as a raw material for the manufacture of textiles. 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.



       Example 20 g of bleached linters are impregnated with a 10% strength aqueous boric acid solution at 60-70%, pressed well and then dried. The material pretreated in this way is exposed to epichlorohydrin vapors in a suitable apparatus for 50 hours at a temperature of 120-130 o. <I> Example 2: </I> 100 grams of epichlorohydrin are gradually mixed with 3 grams of concentrated sulfuric acid while being well cooled.

   The resulting solution of the chlorohydrin-sulfuric acid ester in epichlorohydrin is heated to 130-140 ° for 35 hours in a pressure vessel with 10 g linters. When the reaction is complete, the linters are pressed out and carefully washed out.



  The new cellulose derivative is pure white and contains one
EMI0001.0033
    in which the halogen atom is mobile.

Claims (1)

PATENTANSPRUCH: Verfahren zur Herstellung eines neuen Zelluloseabkömmlings, dadurch gekennzeich- net, dass Zellulose mit Epichlorhydrin be handelt wird. Der neue Zelluloseabkömmling ist rein weiss und enthält eine EMI0002.0004 in welcher das Halogenatom beweglich ist. UNTERANSPRüCHE: 1. Verfahren gemäss Patentanspruch, dadurch gekennzeichnet, dass die Behandlung mit Epichlorhydrin in Gegenwart eines Kata lysators vorgenommen wird. 2. Verfahren gemäss Patentanspruch, dadurch gekennzeichnet, dass die Behandlung mit Epichlorhydrin in Gegenwart von Bor säure vorgenommen wird. PATENT CLAIM: Process for the production of a new cellulose derivative, characterized in that cellulose is treated with epichlorohydrin. The new cellulose derivative is pure white and contains one EMI0002.0004 in which the halogen atom is mobile. SUBClaims: 1. Process according to claim, characterized in that the treatment with epichlorohydrin is carried out in the presence of a catalyst. 2. The method according to claim, characterized in that the treatment with epichlorohydrin is carried out in the presence of boric acid.
CH148481D 1930-01-11 1930-01-11 Process for the production of a new cellulose derivative. CH148481A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH148481T 1930-01-11

Publications (1)

Publication Number Publication Date
CH148481A true CH148481A (en) 1931-07-31

Family

ID=4404294

Family Applications (1)

Application Number Title Priority Date Filing Date
CH148481D CH148481A (en) 1930-01-11 1930-01-11 Process for the production of a new cellulose derivative.

Country Status (1)

Country Link
CH (1) CH148481A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
USRE34904E (en) * 1989-10-30 1995-04-11 Hercules Incorporated Alkylaryl hydrophobically modified cellulose ethers

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
USRE34904E (en) * 1989-10-30 1995-04-11 Hercules Incorporated Alkylaryl hydrophobically modified cellulose ethers

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