Global Patent Index - EP 1243693 A2

EP 1243693 A2 2002-09-25 - Process for loading fibers from a fibrous suspension with an additive

Title (en)

Process for loading fibers from a fibrous suspension with an additive

Title (de)

Verfahren zum Beladen von in einer Faserstoffsuspension enthaltenen Fasern mit einem Hilfsstoff

Title (fr)

Procédé pour charger des fibres en suspension avec un additif

Publication

EP 1243693 A2 (DE)

Application

EP 02002736 A

Priority

DE 10113998 A

Abstract (en)

Treatment of fibers in a suspension with auxiliaries by chemical precipitation reaction involves addition of (i) Ca(OH)2 and/or CaO and also (ii) a bleach before the precipitation reaction is completed.

Abstract (de)

Bei einem Verfahren zum Beladen von in einer Faserstoffsuspension enthaltenen Fasern mit einem Hilfsstoff durch eine chemische Fällungsreaktion werden der Faserstoffsuspension vor der Auslösung der Fällungsreaktion Calciumhydroxid und/oder Calciumoxid und mindestens ein Bleichmittel zugesetzt. Dabei kann es sich bei dem Bleichmittel insbesondere um Peroxid handeln. <IMAGE>

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

D21C 9/00; D21C 9/10

IPC 8 full level (invention and additional information)

D21C 9/00 (2006.01); D21C 9/153 (2006.01); D21C 9/16 (2006.01)

CPC (invention and additional information)

D21C 9/004 (2013.01); D21C 9/153 (2013.01); D21C 9/163 (2013.01)

Designated contracting state (EPC)

AT DE FI IT SE

EPO simple patent family

EP 1243693 A2 20020925; EP 1243693 A3 20031210; EP 1243693 B1 20060426; AT 324484 T 20060515; DE 10113998 A1 20020926; DE 50206517 D1 20060601

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