| (19) |
 |
|
(11) |
EP 0 460 566 A3 |
| (12) |
EUROPEAN PATENT APPLICATION |
| (88) |
Date of publication A3: |
|
27.05.1992 Bulletin 1992/22 |
| (43) |
Date of publication A2: |
|
11.12.1991 Bulletin 1991/50 |
| (22) |
Date of filing: 03.06.1991 |
|
| (51) |
International Patent Classification (IPC)5: C11D 1/10 |
|
| (84) |
Designated Contracting States: |
|
DE FR GB NL SE |
| (30) |
Priority: |
05.06.1990 JP 146599/90
15.02.1991 JP 42851/91
15.02.1991 JP 42852/91
|
| (71) |
Applicant: Kao Corporation |
|
Chuo-Ku
Tokyo 103 (JP) |
|
| (72) |
Inventors: |
|
- Nozaki, Toshio
Inba-gun,
Chiba-ken (JP)
- Kojima, Masayo
Wakayama-shi,
Wakayama-ken (JP)
- Watanabe, Hiroshi
Funabashi-shi,
Chiba-ken (JP)
|
| (74) |
Representative: Grünecker, Kinkeldey,
Stockmair & Schwanhäusser
Anwaltssozietät |
|
Maximilianstrasse 58
80538 München
80538 München (DE) |
|
| |
|
| (54) |
Detergent composition |
(57) The liquid detergent composition of the present invention contains 5 to 60% by weight
of a potassium or alkanolamine salt of a secondary amide-type N-acylamino acid represented
by the following general formula (I):
RCONH(CH₂)
nCOOH (I)
wherein R represents a straight-chain saturated hydrocarbon acyl group having 10
to 14 carbon atoms; and
n is a number of 2.
Further, the detergent composition of the present invention comprises an N-acyl compound
(A) represented by the following general formula (II) and surfactant(s) [other than
the component (A)] (B) at a weight ratio of (A)/(B) of from 99/1 to 1/1;
RCONH(CH₂)
nCOOM (II)
wherein RCO represents a straight-chain acyl group having 8 to 22 carbon atoms;
n is an integer of from 1 to 11; and
M represents an alkali metal or an inorganic or organic ammonium.