| (19) |
 |
|
(11) |
EP 0 471 410 A3 |
| (12) |
EUROPEAN PATENT APPLICATION |
| (88) |
Date of publication A3: |
|
01.07.1992 Bulletin 1992/27 |
| (43) |
Date of publication A2: |
|
19.02.1992 Bulletin 1992/08 |
| (22) |
Date of filing: 07.08.1991 |
|
|
| (84) |
Designated Contracting States: |
|
CH DE ES FR GB IT LI NL SE |
| (30) |
Priority: |
15.08.1990 US 567589
|
| (71) |
Applicants: |
|
- UNILEVER N.V.
NL-3013 AL Rotterdam (NL)
CH DE ES FR IT LI NL SE
- UNILEVER PLC
London EC4P 4BQ (GB)
GB
|
|
| (72) |
Inventors: |
|
- Kaiserman, Howard Bruce
Edgewater, NJ 07020 (US)
- Siuta-Mangano, Patricia
Edgewater, NJ 07020 (US)
|
| (74) |
Representative: Kan, Jacob Hendrik, Dr. et al |
|
Unilever N.V.
Patent Division
P.O. Box 137
NL-3130 AC Vlaardingen
NL-3130 AC Vlaardingen (NL) |
|
| |
|
| (54) |
Structured liquid detergent compositions containing subtilisin mutants |
(57) The subject invention relates to mutant subtilisin proteases having substitution
in at least 1 amino acid residue and to their use in structured detergent compositions
in view of the enhanced stability they provide. In one embodiment of the invention,
the enhanced enzyme stability in structured liquids comprising a decoupling polymer
is shown and in a second embodiment, the enhanced stability of the mutant enzyme in
a structured liquid comprising perborate is shown. None of these effects would have
been predicted in advance.