AT364908B - METHOD FOR THE PRODUCTION OF NEEDLE TIMBER CELLS - Google Patents

METHOD FOR THE PRODUCTION OF NEEDLE TIMBER CELLS

Info

Publication number
AT364908B
AT364908B AT0316478A AT316478A AT364908B AT 364908 B AT364908 B AT 364908B AT 0316478 A AT0316478 A AT 0316478A AT 316478 A AT316478 A AT 316478A AT 364908 B AT364908 B AT 364908B
Authority
AT
Austria
Prior art keywords
production
cells
needle timber
needle
timber cells
Prior art date
Application number
AT0316478A
Other languages
German (de)
Other versions
ATA316478A (en
Inventor
Rudolf Dr Patt
Original Assignee
Escher Wyss Ag
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 AT267478A priority Critical patent/AT356092B/en
Priority to AT267578A priority patent/AT356093B/en
Priority to AT267678A priority patent/AT356094B/en
Application filed by Escher Wyss Ag filed Critical Escher Wyss Ag
Publication of ATA316478A publication Critical patent/ATA316478A/en
Application granted granted Critical
Publication of AT364908B publication Critical patent/AT364908B/en

Links

Classifications

    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21C—PRODUCTION OF CELLULOSE BY REMOVING NON-CELLULOSE SUBSTANCES FROM CELLULOSE-CONTAINING MATERIALS; REGENERATION OF PULPING LIQUORS; APPARATUS THEREFOR
    • D21C1/00—Pretreatment of the finely-divided materials before digesting
    • D21C1/06—Pretreatment of the finely-divided materials before digesting with alkaline reacting compounds
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21C—PRODUCTION OF CELLULOSE BY REMOVING NON-CELLULOSE SUBSTANCES FROM CELLULOSE-CONTAINING MATERIALS; REGENERATION OF PULPING LIQUORS; APPARATUS THEREFOR
    • D21C3/00—Pulping cellulose-containing materials
    • D21C3/04—Pulping cellulose-containing materials with acids, acid salts or acid anhydrides
    • D21C3/06—Pulping cellulose-containing materials with acids, acid salts or acid anhydrides sulfur dioxide; sulfurous acid; bisulfites sulfites
    • D21C3/10—Pulping cellulose-containing materials with acids, acid salts or acid anhydrides sulfur dioxide; sulfurous acid; bisulfites sulfites magnesium bisulfite
AT0316478A 1974-04-25 1978-05-02 METHOD FOR THE PRODUCTION OF NEEDLE TIMBER CELLS AT364908B (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
AT267478A AT356092B (en) 1974-04-25 1978-04-17 METHOD FOR PRODUCING NEW, HETEROCYCLICALLY SUBSTITUTED 5-SULFAMOYL-BENZOESAE DERIVATIVES AND THEIR SALTS
AT267578A AT356093B (en) 1974-04-25 1978-04-17 METHOD FOR PRODUCING NEW, HETEROCYCLICALLY SUBSTITUTED 5-SULFAMOYL-BENZOESAE DERIVATIVES AND THEIR SALTS
AT267678A AT356094B (en) 1974-04-25 1978-04-17 METHOD FOR PRODUCING NEW, HETEROCYCLICALLY SUBSTITUTED 5-SULFAMOYL-BENZOESAE DERIVATIVES AND THEIR SALTS

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH548977 1977-05-03

Publications (2)

Publication Number Publication Date
ATA316478A ATA316478A (en) 1981-04-15
AT364908B true AT364908B (en) 1981-11-25

Family

ID=4294440

Family Applications (1)

Application Number Title Priority Date Filing Date
AT0316478A AT364908B (en) 1974-04-25 1978-05-02 METHOD FOR THE PRODUCTION OF NEEDLE TIMBER CELLS

Country Status (6)

Country Link
JP (1) JPS53139802A (en)
AT (1) AT364908B (en)
BR (1) BR7802645A (en)
CA (1) CA1101616A (en)
FI (1) FI781351A (en)
SE (1) SE7805124L (en)

Also Published As

Publication number Publication date
BR7802645A (en) 1978-12-12
SE7805124L (en) 1978-11-04
FI781351A (en) 1978-11-04
CA1101616A (en) 1981-05-26
JPS53139802A (en) 1978-12-06
ATA316478A (en) 1981-04-15

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Legal Events

Date Code Title Description
ELJ Ceased due to non-payment of the annual fee
ELJ Ceased due to non-payment of the annual fee