FI65265C - Foerfarande foer framstaellning av viskos - Google Patents

Foerfarande foer framstaellning av viskos Download PDF

Info

Publication number
FI65265C
FI65265C FI793344A FI793344A FI65265C FI 65265 C FI65265 C FI 65265C FI 793344 A FI793344 A FI 793344A FI 793344 A FI793344 A FI 793344A FI 65265 C FI65265 C FI 65265C
Authority
FI
Finland
Prior art keywords
cellulose
energy
alkali
viskos
less
Prior art date
Application number
FI793344A
Other languages
English (en)
Finnish (fi)
Other versions
FI65265B (fi
FI793344A (fi
Inventor
Klaus Fischer
Martin Wilke
Wilfried Goldberg
Horst Sendner
Original Assignee
Wolfen Filmfab Veb
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 Wolfen Filmfab Veb filed Critical Wolfen Filmfab Veb
Publication of FI793344A publication Critical patent/FI793344A/fi
Application granted granted Critical
Publication of FI65265B publication Critical patent/FI65265B/fi
Publication of FI65265C publication Critical patent/FI65265C/fi

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08B—POLYSACCHARIDES; DERIVATIVES THEREOF
    • C08B1/00—Preparatory treatment of cellulose for making derivatives thereof, e.g. pre-treatment, pre-soaking, activation
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08B—POLYSACCHARIDES; DERIVATIVES THEREOF
    • C08B1/00—Preparatory treatment of cellulose for making derivatives thereof, e.g. pre-treatment, pre-soaking, activation
    • C08B1/08—Alkali cellulose

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)
  • Paper (AREA)
FI793344A 1978-10-27 1979-10-25 Foerfarande foer framstaellning av viskos FI65265C (fi)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DD20870878 1978-10-27
DD20870878A DD140747A1 (de) 1978-10-27 1978-10-27 Verfahren zur herstellung von viskosen

Publications (3)

Publication Number Publication Date
FI793344A FI793344A (fi) 1980-04-28
FI65265B FI65265B (fi) 1983-12-30
FI65265C true FI65265C (fi) 1984-04-10

Family

ID=5515033

Family Applications (1)

Application Number Title Priority Date Filing Date
FI793344A FI65265C (fi) 1978-10-27 1979-10-25 Foerfarande foer framstaellning av viskos

Country Status (8)

Country Link
AT (1) AT384229B (de)
DD (1) DD140747A1 (de)
DE (1) DE2941624A1 (de)
FI (1) FI65265C (de)
PL (1) PL115882B2 (de)
RO (1) RO77528A (de)
SE (1) SE7908897L (de)
YU (1) YU257379A (de)

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4409384A (en) 1981-11-12 1983-10-11 E. I. Du Pont De Nemours And Company Viscose preparation using low concentration caustic
AT402739B (de) * 1995-09-19 1997-08-25 Chemiefaser Lenzing Ag Verfahren zur herstellung eines cellulosischen formkörpers
GB9605073D0 (en) * 1996-03-11 1996-05-08 Hoechst Ag Manufacture of vicose and articles therefrom
GB9620585D0 (en) * 1996-10-03 1996-11-20 Courtaulds Fibres Holdings Ltd Improvements in the manufacture of extruded articles
DE19707387C1 (de) * 1997-02-25 1998-04-02 Hoechst Ag Verfahren zur Herstellung von Viskose
SE511842C2 (sv) * 1997-04-18 1999-12-06 Akzo Nobel Surface Chem Sätt att framställa en viskoslösning
GB9720213D0 (en) 1997-09-23 1997-11-26 Kelheim Faserwerk Gmbh Manufacture of viscose and articles therefrom
US7267744B2 (en) 2001-03-15 2007-09-11 Sappi Limited Pulp treatment and process
GB2493490A (en) * 2011-05-20 2013-02-13 Innovia Films Ltd Process for dissolving and casting non-dissolving cellulose
GB2493488A (en) * 2011-05-20 2013-02-13 Innovia Films Ltd Process for dissolving and casting non-dissolving cellulose
NO2753575T3 (de) * 2014-02-03 2018-07-28
DE102019134819A1 (de) 2019-12-17 2021-06-17 SAPPI Southern Africa Limited Herstellung einer Alkalicellulose mit einer verbesserten Reaktivität für Derivatisierungsreaktionen sowie Herstellung eines Chemiezellstoffs mit einer verbesserten Reaktivität für Derivatisierungsreaktionen

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DD75636A (de) *

Also Published As

Publication number Publication date
YU257379A (en) 1982-08-31
AT384229B (de) 1987-10-12
PL219237A2 (de) 1980-09-22
ATA645879A (de) 1987-03-15
FI65265B (fi) 1983-12-30
DE2941624A1 (de) 1980-05-08
FI793344A (fi) 1980-04-28
DD140747A1 (de) 1980-03-26
DE2941624C2 (de) 1988-03-10
RO77528A (ro) 1982-09-09
PL115882B2 (en) 1981-05-30
SE7908897L (sv) 1980-04-28

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Legal Events

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MM Patent lapsed
MM Patent lapsed

Owner name: VEB FILMFABRIK WOLFEN