| (19) |
 |
|
(11) |
EP 0 407 187 A3 |
| (12) |
EUROPEAN PATENT APPLICATION |
| (88) |
Date of publication A3: |
|
17.07.1991 Bulletin 1991/29 |
| (43) |
Date of publication A2: |
|
09.01.1991 Bulletin 1991/02 |
| (22) |
Date of filing: 05.07.1990 |
|
|
| (84) |
Designated Contracting States: |
|
CH DE ES FR GB IT LI NL SE |
| (30) |
Priority: |
07.07.1989 US 376468
29.01.1990 US 474708
|
| (71) |
Applicants: |
|
- UNILEVER PLC
London EC4P 4BQ (GB)
GB
- UNILEVER N.V.
NL-3013 AL Rotterdam (NL)
CH DE ES FR IT LI NL SE
|
|
| (72) |
Inventors: |
|
- Corring, Robert John
Rockaway Township,
New Jersey 07866 (US)
- Goedhart, Machiel
NL-3181 DC Rozenburg (NL)
- Christiano, Steven Patrick
Maplewood,
New Jersey 07040 (US)
- Krupa, Jerry Jaroslav
Rockaway Township,
New Jersey 07866 (US)
- Kielman, Hendrik Simon
F-59000 Lille (FR)
|
| (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) |
Aqueous thixotropic cleaning composition |
(57) Aqueous liquid cleaning compositions incorporate as thickeners a combination of clays
of particle size 0.001 to 1 micron and polymeric thickener agents. This combination
imparts not only beneficial viscosity to the compositions, but also improves phase
stability and reduces loss of chlorine bleach in the aqueous environment. Moreover,
the non-phosphate cleaning compositions of the invention have surprisingly effective
cleaning performance.