Global Patent Index - EP 0585038 B1

EP 0585038 B1 2000-07-26 - Alkali containing silica solution

Title (en)

Alkali containing silica solution

Title (de)

Basische Silikatlösung

Title (fr)

Solution alcaline de silica

Publication

EP 0585038 B1 (EN)

Application

EP 93306496 A

Priority

  • EP 93306496 A
  • EP 92307886 A

Abstract (en)

[origin: EP0585038A1] An alkali containing silica solution comprising 15% to 30% by weight of silica, 10% to 25% by weight of potassium or sodium oxide or mixtures thereof, 2% to 6% by weight of a compatible neutralised organic acid calcium sequestrant the SiO2/Na2O ratio of the alkali containing silica solution being in the range 1.2 to 2.0 has been found to be a suitable stabilizer for alkaline hydrogen peroxide bleaching of textiles.

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

C11D 3/08; C11D 3/39; C11D 7/14; D06L 3/02

IPC 8 full level (invention and additional information)

C11D 3/08 (2006.01); C11D 3/39 (2006.01); C11D 7/14 (2006.01); C11D 7/26 (2006.01); C11D 7/32 (2006.01); C11D 7/36 (2006.01); C11D 7/54 (2006.01); D06L 3/02 (2006.01)

IPC 8 main group level (invention and additional information)

D06L (2006.01)

CPC (invention and additional information)

C11D 3/08 (2013.01); C11D 3/3937 (2013.01); C11D 3/394 (2013.01); C11D 7/14 (2013.01); C11D 7/265 (2013.01); C11D 7/3245 (2013.01); C11D 7/36 (2013.01); D06L 4/12 (2017.01)

Designated contracting state (EPC)

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

DOCDB simple family

EP 0585038 A1 19940302; EP 0585038 B1 20000726; AT 194998 T 20000815; BR 9303474 A 19940315; DE 69329089 D1 20000831; DE 69329089 T2 20001221; DK 0585038 T3 20001218; ES 2150436 T3 20001201; GR 3034433 T3 20001229; PT 585038 E 20001130; ZA 9305690 B 19950206