EP 0082823 B1 19860903 - PROCESS FOR BLEACHING FIBROUS MATERIALS WITH OLIGOMERS OF PHOSPHONIC ACIDS AS STABILIZING AGENTS IN ALCALINE, PEROXIDE-CONTAINING BLEACHING BATHS
Title (en)
PROCESS FOR BLEACHING FIBROUS MATERIALS WITH OLIGOMERS OF PHOSPHONIC ACIDS AS STABILIZING AGENTS IN ALCALINE, PEROXIDE-CONTAINING BLEACHING BATHS
Publication
Application
Priority
CH 829981 A 19811223
Abstract (en)
[origin: US4496472A] Oligomers of the formula <IMAGE> wherein Y1 is hydrogen or -CO-T1, R1 Q1 and T1 are alkyl and n1 is 1 to 16, or alkali metal salts thereof, are used as stabilizers in peroxide-containing alkaline liquors for bleaching cellulosic fibre materials.
IPC 1-7
IPC 8 full level
C11D 7/54 (2006.01); C11D 3/39 (2006.01); C11D 7/36 (2006.01); D06L 3/02 (2006.01)
CPC (source: EP US)
C11D 3/394 (2013.01 - EP US); D06L 4/12 (2016.12 - EP US)
Designated contracting state (EPC)
BE CH DE FR GB IT LI NL
DOCDB simple family (publication)
EP 0082823 A1 19830629; EP 0082823 B1 19860903; CA 1216706 A 19870120; DE 3273072 D1 19861009; JP H0335428 B2 19910528; JP S58126364 A 19830727; US 4496472 A 19850129; ZA 829421 B 19830928
DOCDB simple family (application)
EP 82810551 A 19821217; CA 418255 A 19821221; DE 3273072 T 19821217; JP 23513582 A 19821223; US 45071882 A 19821217; ZA 829421 A 19821222