| (19) |
 |
|
(11) |
EP 0 267 042 A3 |
| (12) |
EUROPEAN PATENT APPLICATION |
| (88) |
Date of publication A3: |
|
21.03.1990 Bulletin 1990/12 |
| (43) |
Date of publication A2: |
|
11.05.1988 Bulletin 1988/19 |
| (22) |
Date of filing: 06.11.1987 |
|
|
| (84) |
Designated Contracting States: |
|
CH DE ES FR GB IT LI NL SE |
| (30) |
Priority: |
07.11.1986 GB 8626690
19.02.1987 GB 8703867
14.05.1987 GB 8711422
|
| (71) |
Applicants: |
|
- UNILEVER PLC
London EC4P 4BQ (GB)
GB
- UNILEVER N.V.
3013 AL Rotterdam (NL)
CH DE ES FR IT LI NL SE
|
|
| (72) |
Inventors: |
|
- Anderson, Robert William
New Brighton
Mold
Clwyd CH7 6QL (GB)
- Duggleby, Peter McCowan
Irby
Wirral, L61 3UG (GB)
- Garner-Gray, Peter Frederick
Preston
Lancashire (GB)
- Niven, Ian Eric
Liverpool L16 0JG (GB)
- Price, Timothy John
Chester, CH2 2AG (GB)
- Ranpuria, Chandulal Kantilal
New Ferry,Wirral L62 5AA (GB)
- Taylor, Thomas
Northwich
Cheshire, CW8 1LZ (GB)
- Wilde, Raymond John
Higher Bebington
Wirral L63 5QE (GB)
|
| (74) |
Representative: Ford, Michael Frederick et al |
|
MEWBURN ELLIS
York House
23 Kingsway
London WC2B 6HP
London WC2B 6HP (GB) |
|
| |
|
| (54) |
Detergent granules and a process for their preparation |
(57) Detergent powders built with alkali metal carbonate and containing both sodium silicate
and a calcium carbonate seed crystal material such as calcite are prepared by granulating
a carbonate/silicate base powder with the seed crystal material, ideally in the presence
of a liquid binder such as sucrose solution.