Global Patent Index - EP 0861347 B1

EP 0861347 B1 2000-03-01 - METHOD OF OBTAINING CELLULOSE FIBRE MATERIAL FROM A PLANT SUBSTRATE CONTAINING CALCIUM PECTINATE

Title (en)

METHOD OF OBTAINING CELLULOSE FIBRE MATERIAL FROM A PLANT SUBSTRATE CONTAINING CALCIUM PECTINATE

Title (de)

VERFAHREN ZUR GEWINNUNG VON CELLULOSEFASERMATERIAL AUS CALCIUMPEKTINAT-HALTIGEM, PFLANZLICHEM SUBSTRAT

Title (fr)

PROCEDE DE PRODUCTION D'UN MATERIAU DE FIBRES CELLULOSIQUES CONSITUE D'UN SUBSTRAT VEGETAL CONTENANT DU PECTINATE DE CALCIUM

Publication

EP 0861347 B1 (DE)

Application

EP 95940192 A

Priority

EP 9504521 W

Abstract (en)

[origin: WO9719221A1] The invention concerns a method of obtaining cellulose fibre material from a plant substrate containing calcium pectinate, the plant substrate being solubilized by using trisodium phosphate and optionally bleached. The method is characterized in that the plant substrate is simultaneously treated with borax or pretreated with an aqueous borax solution before solubilization. Preferably the borax is present in an amount of between 0.5 and 10 g, in particular between 1 and 5 g and preferably 3 g per litre of water and the temperature of the solution is in particular between 30 and 60 DEG C, preferably between 40 and 50 DEG C and more preferably 45 DEG C.

IPC 1-7 (main, further and additional classification)

D21C 3/00; D21C 5/00

IPC 8 full level (invention and additional information)

D21C 3/00 (2006.01); D21C 5/00 (2006.01)

CPC (invention and additional information)

D21C 5/00 (2013.01); D21C 3/006 (2013.01)

Designated contracting state (EPC)

BE DE DK ES FR GB IE IT PT SE

EPO simple patent family

WO 9719221 A1 19970529; AU 4173096 A 19970611; CZ 9801468 A3 19980916; DE 59507926 D1 20000406; EP 0861347 A1 19980902; EP 0861347 B1 20000301

INPADOC legal status


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