| (19) |
 |
|
(11) |
EP 0 359 491 A3 |
| (12) |
EUROPEAN PATENT APPLICATION |
| (88) |
Date of publication A3: |
|
05.09.1990 Bulletin 1990/36 |
| (43) |
Date of publication A2: |
|
21.03.1990 Bulletin 1990/12 |
| (22) |
Date of filing: 11.09.1989 |
|
| (51) |
International Patent Classification (IPC)5: C11D 3/37 |
|
| (84) |
Designated Contracting States: |
|
CH DE ES FR GB IT LI NL SE |
| (30) |
Priority: |
12.09.1988 GB 8821282
|
| (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: |
|
- Garvey, Michael Joseph
Heswall
Wirral
Merseyside L60 1XU (GB)
- Griffiths, Ian Charles
Bebington
Wirral
Merseyside L63 3HS (GB)
|
| (74) |
Representative: Joppe, Hermina L. P. et al |
|
Unilever N.V.
Patent Division
P.O. Box 137
3130 AC Vlaardingen
3130 AC Vlaardingen (NL) |
|
| |
|
| (54) |
Liquid cleaning products |
(57) A liquid cleaning composition comprises solid particles dispersed in a liquid solvent
phase, which phase comprises a liquid polyalkoxylated material, the composition further
comprising polyvinylpyrrolidone, or a derivative thereof, having a viscosity average
molecular weight of less than 30,000 and being dissolved in said liquid solvent phase.
The polymer inhibits network formation which would otherwise lead to viscosity increase
on storage.