..BE..DE....FRGB..IT....NLSE......................R0294904EUROPEAN PATENT APPLICATIONA319890614EP88201175.219880608enenen871375619870612GB19890614198924198812141988504 4C 11D 3/39 AdeVerfahren zur Herstellung einer Perboratbleichmittel enthaltenden wässerigen flüssigen WaschmittelzusammensetzungenProcess for making an aqueous liquid detergent composition containing a perborate bleachfrProcédé pour la préparation d'une composition détergente liquide aqueuse contenant du perborate comme agent de blanchimentTHE PROCTER & GAMBLE COMPANY00200173CM 251MPROCTER & GAMBLE COMPANY, THEOne Procter & Gamble PlazaCincinnati, Ohio 45202USGBSEProcter & Gamble European Technical Center (Naamloze Vennootschap)00200731CM 251MTemselaan 100B-1853 Strombeek-BeverBEBEDEFRITNLGeudens, Jozef Philomena Raymond8, Stijn StreuvelslaanB-1600 St.Pieters LeeuwBEYap, Tjay Yongav. des Croix de Feu, 155B-1020 BrusselsBEErnst, Hubertet al00000462PROCTER & GAMBLE EUROPEAN TECHNICAL CENTER Temselaan 1001853 Strombeek-BeverBEBEDEFRGBITNLSE19890614198924

Stable, bleach-containing liquid detergents are prepared, by in situ crystallization of a perborate bleach. The crystallization may be carried out by converting perborate monohydrate to perborate tetrahydrate, or by converting a borate to a perborate.