| (19) |
 |
|
(11) |
EP 0 314 232 A3 |
| (12) |
EUROPEAN PATENT APPLICATION |
| (88) |
Date of publication A3: |
|
04.07.1990 Bulletin 1990/27 |
| (43) |
Date of publication A2: |
|
03.05.1989 Bulletin 1989/18 |
| (22) |
Date of filing: 14.10.1988 |
|
| (51) |
International Patent Classification (IPC)4: C11D 17/00 |
|
| (84) |
Designated Contracting States: |
|
CH DE ES FR GB IT LI NL SE |
| (30) |
Priority: |
27.10.1987 GB 8725132
04.12.1987 GB 8728383
|
| (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: |
|
- Neil, Thomas Bruce
Higher Tranmere§ Birkenhead (GB)
- Wilson, David James
Penketh, Cheshire (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) |
|
| |
|
(57) Liquid detergent compositions useful for hard surface cleaning and other applications,
particularly in industrial applications, comprise surfactant blends such that the
compositions undergo a viscosity increase upon aqueous dilution. The invention also
extends to a method of spraying a target surface with such a composition after such
dilution, e.g. in the form of a foam.