Global Patent Index - EP 0639638 A1

EP 0639638 A1 19950222 - Process for making detergent compositions.

Title (en)

Process for making detergent compositions.

Title (de)

Verfahren zur Herstellung von Reinigungsmittelzusammensetzungen.

Title (fr)

Procédé de préparation de compositions détergentes.

Publication

EP 0639638 A1 19950222 (EN)

Application

EP 93870174 A 19930818

Priority

EP 93870174 A 19930818

Abstract (en)

A process for making a high active granular detergent component or composition having a bulk density of at least 650 g/l which comprises the steps of: i) making a paste or liquid which comprises at least 40% by weight of a surfactant selected from anionic and nonionic surfactants, ii) mixing said surfactant paste or liquid with a powder to form a mixture which may be in the form of either a paste or a cohesive powder; iii) forming granules by fine dispersion mixing or granulation of said mixture, optionally in the presence of an effective amount of one or more additional powders; wherein the powder used in step ii) comprises a free-flowing, premixed powder comprising from 0.5% to 10% by weight of a hydrophobic silica and from 75% to 99.5% by weight of a hygroscopic powder comprising a polymer.

IPC 1-7

C11D 17/06; C11D 11/00; C11D 3/12

IPC 8 full level

C11D 3/08 (2006.01); C11D 3/12 (2006.01); C11D 3/37 (2006.01); C11D 11/00 (2006.01); C11D 17/06 (2006.01)

CPC (source: EP)

C11D 3/124 (2013.01); C11D 3/222 (2013.01); C11D 3/225 (2013.01); C11D 3/3761 (2013.01); C11D 3/3776 (2013.01); C11D 3/3792 (2013.01); C11D 11/0082 (2013.01); C11D 17/065 (2013.01)

Citation (search report)

Designated contracting state (EPC)

AT BE CH DE DK ES FR GB GR IE IT LI LU NL PT SE

DOCDB simple family (publication)

EP 0639638 A1 19950222; CA 2169770 A1 19950223; CN 1133059 A 19961009; JP H09509436 A 19970922; WO 9505449 A1 19950223

DOCDB simple family (application)

EP 93870174 A 19930818; CA 2169770 A 19940818; CN 94193705 A 19940818; JP 50717895 A 19940818; US 9409325 W 19940818