| (19) |
 |
|
(11) |
EP 0 737 738 A3 |
| (12) |
EUROPEAN PATENT APPLICATION |
| (88) |
Date of publication A3: |
|
01.04.1998 Bulletin 1998/14 |
| (43) |
Date of publication A2: |
|
16.10.1996 Bulletin 1996/42 |
| (22) |
Date of filing: 11.04.1996 |
|
|
| (84) |
Designated Contracting States: |
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DE DK ES FR GB IT |
| (30) |
Priority: |
12.04.1995 DK 446/95
|
| (71) |
Applicant: CLEANTABS A/S |
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DK-8450 Hammel (DK) |
|
| (72) |
Inventors: |
|
- Schmidt, Erik
8450 Hammel (DK)
- Kristensen, Anders Bjerre
8600 Silkeborg (DK)
|
| (74) |
Representative: Stephensen, Birgitte Borregaard et al |
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c/o Chas. Hude,
33, H.C. Andersens Boulevard
1553 Copenhagen V
1553 Copenhagen V (DK) |
|
| |
|
(57) Bleach tablets comprising in addition to optional usual adjuvants and additives 45
to 85 % by weight coated percarbonate, 0 to 20 % by weight bleach activator calculated
as TAED, 1 to 50 % by weight layered silicate and/or alkali metal silicate, 0 to 25
% by weight sodium/potassium carbonate, 0 to 25 % by weight sodium/potassium bicarbonate,
5 to 35 % by weight poly-functional carboxylic acid calculated as citric acid, 0 to
8 % by weight polyethylene glycol, 0 to 5 % by weight complex-binder, 0 to 2 % by
weight paraffin oil, 0 to 5 % by weight disintegrating agent, 0 to 10 % by weight
polymer and 0 to 10 % by weight enzymes. The bleach tablets are intended for use together
with usual fabric detergent compositions and display a good storage stability and
good tablet-technical properties, such as rate of dissolution and tablet strength,
and they are very environmentally desirable.