| (19) |
 |
|
(11) |
EP 0 313 145 A3 |
| (12) |
EUROPEAN PATENT APPLICATION |
| (88) |
Date of publication A3: |
|
18.10.1989 Bulletin 1989/42 |
| (43) |
Date of publication A2: |
|
26.04.1989 Bulletin 1989/17 |
| (22) |
Date of filing: 07.10.1988 |
|
|
| (84) |
Designated Contracting States: |
|
CH DE ES FR GB IT LI NL SE |
| (30) |
Priority: |
23.10.1987 GB 8724901
|
| (71) |
Applicants: |
|
- UNILEVER N.V.
3013 AL Rotterdam (NL)
CH DE ES FR IT LI NL SE
- UNILEVER PLC
London EC4P 4BQ (GB)
GB
|
|
| (72) |
Inventors: |
|
- Emery, William Derek
Wirral
Merseyside L62 6BP (GB)
- Barnes, Stephen George
South Wirral L66 6AL (GB)
- Sims, Peter Stanford
Cheshire CH3 5UX (GB)
|
| (74) |
Representative: Tan, Bian An (NL) et al |
|
Unilever N.V.
Patent Division
P.O. Box 137
NL-3130 AC Vlaardingen
NL-3130 AC Vlaardingen (NL) |
|
| |
|
| (54) |
Phosphate-free detergent bleach compositions |
(57) Phosphate-free, aluminosilicate-built detergent bleach compositions having really
effective cleaning and stain removal performances at low wash temperatures of 40°C
and below are disclosed, which compositions comprise at least one detergent-active
material, from 15% to about 40% by weight of a water-insoluble, aluminosilicate cation-exchange
material, from 0.5 to about 3% by weight of a polyphosphonate compound, and from about
1% to about 5% by weight of a solid organic peroxyacid compound as the principal bleaching
agent, said composition being substantially free of additional builder materials selected
from the group consisting of citric acid and its alkali metal salts, bicarbonates,
nitrilotriacetates and mixtures thereof. In a preferred embodiment the composition
further contains an enzyme, particularly a proteolytic enzyme.