| (19) |
 |
|
(11) |
EP 0 307 587 A3 |
| (12) |
EUROPEAN PATENT APPLICATION |
| (88) |
Date of publication A3: |
|
10.01.1990 Bulletin 1990/02 |
| (43) |
Date of publication A2: |
|
22.03.1989 Bulletin 1989/12 |
| (22) |
Date of filing: 23.07.1988 |
|
|
| (84) |
Designated Contracting States: |
|
BE DE FR GB IT SE |
| (30) |
Priority: |
12.08.1987 US 84923
|
| (71) |
Applicant: ECOLAB INC. |
|
Saint Paul
Minnesota 55102 (US) |
|
| (72) |
Inventor: |
|
- Olson, Keith Edward
Apple Valley
Minnesota 55124 (US)
|
| (74) |
Representative: Maiwald, Walter, Dr. Dipl.-Chem. et al |
|
Maiwald & Partner,
Poccistrasse 11
80336 München
80336 München (DE) |
|
| |
|
|
|
Remarks: |
|
The title of the invention has been amended (Guidelines for Examination in the EPO,
A-III, 7.3). |
|
| (54) |
Solid cast warewashing composition |
(57) Solid cast detergent-containing articles are produced for use in automatic washing
machines. A liquid detergent composition is cast into a mold where it is allowed to
solidify. The cast detergent composition includes alkali metal metasilicate, alkali
metal condensed phosphate, an encapsulated bleaching source, and water for hydration.
The composition optionally further includes a dye, a perfume, a surfactant, a defoamer,
an additional sequestering agent such as an alkali metal salt of a polyacrylic compound,
a neutral soluble salt such as an alkali metal sulphate or an alkali metal chloride,
an alkali compound such as an alkali metal hydroxide, an alkali metal carbonate, an
alkali metal bicarbonate, an alkali metal sesquicarbonte, an alkali metal borate,
or mixtures thereof.