Global Patent Index - EP 1019474 A1

EP 1019474 A1 2000-07-19 - PROCESS FOR PREPARATION OF A SYSTEM CONTAINING A NON-IONIC SURFACTANT AND AN ALKALI METAL SILICATE

Title (en)

PROCESS FOR PREPARATION OF A SYSTEM CONTAINING A NON-IONIC SURFACTANT AND AN ALKALI METAL SILICATE

Title (de)

VERFAHREN ZUR HERSTELLUNG EINES SYSTEMS ENTHALTEND EIN NICHTIONISCHES TENSID UND EIN ALKALIMETALLSILIKAT

Title (fr)

PROCEDE DE PREPARATION D'UN SYSTEME A BASE D'UN AGENT TENSIOACTIF NON-IONIQUE ET D'UN SILICATE DE METAL ALCALIN

Publication

EP 1019474 A1 (FR)

Application

EP 97901676 A

Priority

  • FR 9700152 W
  • FR 9601124 A
  • FR 9611092 A

Abstract (en)

[origin: WO9728240A1] A system in the form of an aqueous dispersion or granules containing at least one liquid, waxy or pasty non-ionic surfactant and an alkali metal silicate, and prepared using a concentrated aqueous alkali metal silicate solution as the continuous liquid phase optionally containing glycerol, in which is dispersed at least one liquid, pasty or waxy non-ionic surfactant (NIA) that is non-miscible or poorly miscible with said concentrated aqueous alkali metal silicate solution, by means of at least one non-ionic or anionic surfactant (TAS) that is compatible with said concentrated alkali metal silicate solution and capable of causing the dispersion of said liquid, pasty or waxy non-ionic surfactant(s) (NIA) in said concentrated alkali metal silicate solution, whereafter the resulting dispersion is optionally dried to produce a rigid alkali metal silicate shell encapsulating droplets or particles of the liquid, pasty or waxy non-ionic surfactant(s) (NIA). The system may optionally further contain at least one other detergent builder and may be used as a component of a detergent composition, particularly for use in washing machines, or as the detergent composition itself.

IPC 1-7 (main, further and additional classification)

C11D 3/08; C11D 1/66; C11D 11/00; C11D 17/00

IPC 8 full level (invention and additional information)

C11D 1/66 (2006.01); C11D 1/83 (2006.01); C11D 3/08 (2006.01); C11D 17/00 (2006.01); C11D 17/06 (2006.01); C11D 1/06 (2006.01); C11D 1/44 (2006.01); C11D 1/52 (2006.01); C11D 1/72 (2006.01); C11D 1/722 (2006.01); C11D 1/74 (2006.01)

CPC (invention and additional information)

C11D 3/08 (2013.01); C11D 1/83 (2013.01); C11D 1/06 (2013.01); C11D 1/44 (2013.01); C11D 1/526 (2013.01); C11D 1/66 (2013.01); C11D 1/72 (2013.01); C11D 1/722 (2013.01); C11D 1/74 (2013.01)

Designated contracting state (EPC)

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

EPO simple patent family

WO 9728240 A1 19970807; AT 263228 T 20040415; AU 1549597 A 19970822; DE 69728448 D1 20040506; EP 1019474 A1 20000719; EP 1019474 B1 20040331; FR 2744132 A1 19970801; FR 2744132 B1 19980424; JP 3179502 B2 20010625; JP H11506802 A 19990615; US 6291420 B1 20010918

INPADOC legal status


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2003-07-09 [RTI1] TITLE (CORRECTION)

- Free text: PROCESS FOR PREPARATION OF A SYSTEM CONTAINING A NON-IONIC SURFACTANT AND AN ALKALI METAL SILICATE

2003-03-05 [17Q] FIRST EXAMINATION REPORT

- Effective date: 20030120

2000-07-19 [17P] REQUEST FOR EXAMINATION FILED

- Effective date: 19980708

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