EP 0588767 B1 19960612 - Process for improving the brightness, the clearness and the colour of wooden fibrous material
Title (en)
Process for improving the brightness, the clearness and the colour of wooden fibrous material
Title (de)
Verfahren zur Verbesserung von Weissgrad, Helligkeit und Farbort von Holzfaserstoffen
Title (fr)
Procédé pur améliorer la blancheur, la clarté et la couleur de matières fibreuses en bois
Publication
Application
Priority
DE 4230655 A 19920914
Abstract (en)
[origin: EP0588767A1] Addition of photosensitising compounds to wood fibre substances and mixtures thereof in order to improve their degree of whiteness, their brightness and their colour location, and the fibrous substances obtained thereby, and their use.
IPC 1-7
IPC 8 full level
D21C 9/00 (2006.01); D06L 3/12 (2006.01); D06L 4/657 (2017.01); D06L 4/693 (2017.01); D06P 1/26 (2006.01); D06P 1/46 (2006.01); D21C 9/10 (2006.01); D21H 21/30 (2006.01)
CPC (source: EP US)
D06L 4/657 (2017.01 - EP US); D06L 4/693 (2017.01 - EP US); D06P 1/26 (2013.01 - EP US); D06P 1/46 (2013.01 - EP US); D21C 9/1036 (2013.01 - EP US); D21H 21/30 (2013.01 - EP US)
Designated contracting state (EPC)
AT BE CH DE ES FR GB IT LI NL SE
DOCDB simple family (publication)
EP 0588767 A1 19940323; EP 0588767 B1 19960612; AT E139280 T1 19960615; AU 4731293 A 19940324; AU 661195 B2 19950713; BR 9303764 A 19940426; CA 2105922 A1 19940315; DE 4230655 A1 19940317; DE 59302896 D1 19960718; ES 2089777 T3 19961001; FI 933991 A0 19930910; FI 933991 A 19940315; JP H06207391 A 19940726; MX 9305598 A 19940331; US 5482514 A 19960109
DOCDB simple family (application)
EP 93810632 A 19930906; AT 93810632 T 19930906; AU 4731293 A 19930913; BR 9303764 A 19930913; CA 2105922 A 19930910; DE 4230655 A 19920914; DE 59302896 T 19930906; ES 93810632 T 19930906; FI 933991 A 19930910; JP 22882493 A 19930914; MX 9305598 A 19930913; US 11946393 A 19930909