EP 0695800 A3 19971015 - Washing composition

Title (en)

Washing composition

Title (de)

Waschmittel

Title (fr)

Composition de lavage

Publication

EP 0695800 A3 19971015 (DE)

Application

EP 95111313 A 19950719

Priority

DE 4427575 A 19940804
DE 19521291 A 19950610

Abstract (en)

[origin: EP0695800A2] Washing agent comprises 10-80 wt.% partly dehydrated kanemite with very finely divided Na percarbonate adsorbed on its surfaces (kanemite/NaPC), 5-40 wt.% surfactant(s), 0-5 wt.% enzymes, 0-1 wt.% optical brightener and usual ancillaries. Up to 31 wt.% sodium percarbonate (NaPC) is adsorbed on the surface of the kanemite. The kanemite/NaPC is obtd. by (a) (partly) reacting a Na silicate, essentially delta -Na2Si2O5, with CO2 and water, with constant agitation, to form a kanemite/NaHCO3 mixt.; (b) spraying water onto the mixt. and more of the Na silicate, with constant agitation, to form a kanemite/Na2CO3 mixt. (c) adding H2O2 in an amt. of 0.015-1.5 mole/mole of the Na silicate; and (d) drying the prod. at 20-150 degrees C.

IPC 1-7

C11D 3/12; C11D 3/39

IPC 8 full level

C11D 3/12 (2006.01); C11D 3/39 (2006.01)

CPC (source: EP)

C11D 3/1273 (2013.01); C11D 3/3902 (2013.01)

Citation (search report)

[A] EP 0550077 A1 19930707 - PROCTER & GAMBLE [US]
[A] EP 0578987 A1 19940119 - HOECHST AG [DE] & DE 4223546 A1 19940120 - HOECHST AG [DE]
[PX] HIMMRICH J ET AL, SOFW-JOURNAL SEIFEN, OELE, FETTE, WACHSE, vol. 120, no. 13, 1 October 1994 (1994-10-01), pages 784, 787, 790, 792, XP000470108

Designated contracting state (EPC)

BE DE ES FR GB NL

DOCDB simple family (publication)

EP 0695800 A2 19960207; EP 0695800 A3 19971015; JP H08100194 A 19960416

DOCDB simple family (application)

EP 95111313 A 19950719; JP 19772395 A 19950802