FI935187A - Menetelmä valkaistun selluloosamassan valmistamiseksi - Google Patents

Menetelmä valkaistun selluloosamassan valmistamiseksi Download PDF

Info

Publication number: FI935187A
Authority: FI; Finland
Prior art keywords: procedure; cellulose pulp; bleached cellulose; preparing bleached; preparing
Prior art date: 1993-11-22

Application number

FI935187A

Other languages

English (en)

Swedish (sv)

Other versions

FI935187A0 (fi

Inventor

Anna Suurnaekki

Matti Siika-Aho

Johanna Buchert

Liisa Viikari

Original Assignee

Valtion Teknillinen

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.)

1993-11-22

Filing date

1993-11-22

Publication date

1995-05-23

1993-11-22 Application filed by Valtion Teknillinen filed Critical Valtion Teknillinen

1993-11-22 Priority to FI935187A priority Critical patent/FI935187A/fi

1993-11-22 Publication of FI935187A0 publication Critical patent/FI935187A0/fi

1994-11-22 Priority to AU81463/94A priority patent/AU8146394A/en

1994-11-22 Priority to PCT/FI1994/000522 priority patent/WO1995014809A1/en

1995-05-23 Publication of FI935187A publication Critical patent/FI935187A/fi

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
- D21C5/00—Other processes for obtaining cellulose, e.g. cooking cotton linters ; Processes characterised by the choice of cellulose-containing starting materials
- D21C5/005—Treatment of cellulose-containing material with microorganisms or enzymes

Landscapes

Life Sciences & Earth Sciences (AREA)
Chemical & Material Sciences (AREA)
Biochemistry (AREA)
Microbiology (AREA)
Paper (AREA)

FI935187A 1993-11-22 1993-11-22 Menetelmä valkaistun selluloosamassan valmistamiseksi FI935187A (fi)

Priority Applications (3)

Application Number	Priority Date	Filing Date	Title
FI935187A FI935187A (fi)	1993-11-22	1993-11-22	Menetelmä valkaistun selluloosamassan valmistamiseksi
AU81463/94A AU8146394A (en)	1993-11-22	1994-11-22	Treatment of pulp with a mannanase in a bleaching process
PCT/FI1994/000522 WO1995014809A1 (en)	1993-11-22	1994-11-22	Treatment of pulp with a mannanase in a bleaching process

Applications Claiming Priority (1)

Application Number	Priority Date	Filing Date	Title
FI935187A FI935187A (fi)	1993-11-22	1993-11-22	Menetelmä valkaistun selluloosamassan valmistamiseksi

Publications (2)

Publication Number	Publication Date
FI935187A0 FI935187A0 (fi)	1993-11-22
FI935187A true FI935187A (fi)	1995-05-23

Family

ID=8538996

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
FI935187A FI935187A (fi)	1993-11-22	1993-11-22	Menetelmä valkaistun selluloosamassan valmistamiseksi

Country Status (3)

Country	Link
AU (1)	AU8146394A (fi)
FI (1)	FI935187A (fi)
WO (1)	WO1995014809A1 (fi)

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
DE68914112T2 (de) *	1988-11-23	1994-08-04	Sandoz Ag	Benutzung von Enzymen von Aureobasidium Pullulans für das Bleichen von Zellstoff.
DE4129739A1 (de) *	1990-09-11	1992-03-12	Sandoz Ag	Chlorfreies bleichen von papierpulpe
AT400153B (de) *	1991-05-02	1995-10-25	Voest Alpine Ind Anlagen	Verfahren zum bleichen von xylan- und lignocellulosehältigen materialien

1993
- 1993-11-22 FI FI935187A patent/FI935187A/fi not_active Application Discontinuation
1994
- 1994-11-22 WO PCT/FI1994/000522 patent/WO1995014809A1/en active Application Filing
- 1994-11-22 AU AU81463/94A patent/AU8146394A/en not_active Abandoned

Also Published As

Publication number	Publication date
FI935187A0 (fi)	1993-11-22
WO1995014809A1 (en)	1995-06-01
AU8146394A (en)	1995-06-13

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Legal Events

Date	Code	Title	Description
1996-12-08	FD	Application lapsed