| (19) |
 |
|
(11) |
EP 0 395 186 A3 |
| (12) |
EUROPEAN PATENT APPLICATION |
| (88) |
Date of publication A3: |
|
08.05.1991 Bulletin 1991/19 |
| (43) |
Date of publication A2: |
|
31.10.1990 Bulletin 1990/44 |
| (22) |
Date of filing: 27.04.1990 |
|
| (51) |
International Patent Classification (IPC)5: C11D 3/395 |
|
| (84) |
Designated Contracting States: |
|
AT BE CH DE DK ES FR GB IT LI LU NL SE |
| (30) |
Priority: |
28.04.1989 US 344732
|
| (71) |
Applicant: Colgate-Palmolive Company |
|
New York, N.Y. 10022-7499 (US) |
|
| (72) |
Inventors: |
|
- Ahmed, Fahim Uddin
Dayton,
New Jersey (US)
- Bochis, Kathleen
East Brunswick,
New Jersey (US)
|
| (74) |
Representative: Smulders, Theodorus A.H.J., Ir. et al |
|
Vereenigde Octrooibureaux
Nieuwe Parklaan 97
2587 BN 's-Gravenhage
2587 BN 's-Gravenhage (NL) |
|
| |
|
| (54) |
Automatic dishwasher detergent composition containing dual bleach system |
(57) The application is directed to an automatic dishwasher detergent powder composition
containing a dual bleach system. The composition contains a chlorine bleach source
and a bromide compound. In the wash bath the chlorine source reacts with water to
form hypochlorite and the bromide compound reacts with a portion of the hypochlorite
to form hypobromite. The active ingredients of the dual bleach system are the hypochlorite
and hypobromite which provide improved cleaning performance against both proteinaceous
and starchy carbohydrate soils. The powder compositions are dry, free flowing, readily
dispersed and easily soluble in the wash bath.