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)

Citation (search report)

See references of WO 9728240A1

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

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

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