EP 0340847 A2 19891108 - Process for preparing bodies containing a peroxyacid compound and compositions comprising said bodies.
Title (en)
Process for preparing bodies containing a peroxyacid compound and compositions comprising said bodies.
Title (de)
Verfahren zur Herstellung von Körpern, die eine Peroxysäure-Verbindung enthalten und diese Körper enthaltende Zusammensetzungen.
Title (fr)
Procédé de préparation de corps contenant un composé d'un peroxyacide et compositions comprenant les dits corps.
Publication
Application
Priority
GB 8810630 A 19880505
Abstract (en)
An improved process for preparing dry particulate bodies containing a solid peroxyacid compound is disclosed, comprising the steps of (A) forming a water-wet mixture of a solid peroxyacid compound and a hydratable material having a temperature of hydration of up to 40 DEG C, at a temperature which is higher than the temperature of hydration of the hydratable material; (B) forming the mixture of (A) into particles of the desired shape and size before, during or after cooling the mass to below the temperature of hydration of the hydratable material; and (C) drying the particles obtained from step (B), the improvement being that in step (A) a film-forming material is incorporated in, and intimately mixed with, the water-wet mixture, forming a mix having a pH of below 7. The peroxyacid-containing bodies obtainable therefrom are extremely suitable for use as a bleach additive and for the incorporation in bleaching and/or detergent powder compositions.
IPC 1-7
IPC 8 full level
C07C 67/00 (2006.01); C07C 407/00 (2006.01); C07C 409/24 (2006.01); C11D 3/06 (2006.01); C11D 3/37 (2006.01); C11D 3/39 (2006.01); C11D 3/60 (2006.01); C11D 11/00 (2006.01)
CPC (source: EP)
C11D 3/062 (2013.01); C11D 3/3761 (2013.01); C11D 3/3945 (2013.01); C11D 11/0082 (2013.01)
Designated contracting state (EPC)
CH DE ES FR GB IT LI NL SE
DOCDB simple family (publication)
EP 0340847 A2 19891108; EP 0340847 A3 19901003; AU 3393189 A 19891109; AU 613745 B2 19910808; BR 8902095 A 19891205; GB 8810630 D0 19880608; JP H0211564 A 19900116; JP H0623186 B2 19940330; ZA 893330 B 19910130
DOCDB simple family (application)
EP 89201076 A 19890426; AU 3393189 A 19890502; BR 8902095 A 19890504; GB 8810630 A 19880505; JP 11361489 A 19890502; ZA 893330 A 19890505