| (19) |
 |
|
(11) |
EP 0 296 432 A3 |
| (12) |
EUROPEAN PATENT APPLICATION |
| (88) |
Date of publication A3: |
|
22.11.1990 Bulletin 1990/47 |
| (43) |
Date of publication A2: |
|
28.12.1988 Bulletin 1988/52 |
| (22) |
Date of filing: 10.06.1988 |
|
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| (84) |
Designated Contracting States: |
|
DE ES FR GB IT |
| (30) |
Priority: |
25.06.1987 JP 158682/87
09.11.1987 JP 282342/87
|
| (71) |
Applicant: Kao Corporation |
|
Chuo-ku
Tokyo (JP) |
|
| (72) |
Inventors: |
|
- Kita, Kazuo
Wakayama-shi
Wakayama-ken (JP)
- Morimi, Etsuko
Wakayama-shi
Wakayama-ken (JP)
- Hamai, Toshimasa
Kaiso-gun
Wakayama-ken (JP)
|
| (74) |
Representative: Wächtershäuser, Günter, Prof. Dr. |
|
Patentanwalt,
Tal 29
80331 München
80331 München (DE) |
|
| |
|
| (54) |
Aqueous solution composition of strong alkali and nonionic surface active agent |
(57) An aqueous solution composition of a strong alkali and a nonionic surface active
agent comprising: (a) a strong alkali, (b) a nonionic surface active agent having
an HLB value of 3 - 18, and, as a solubilizing agent, (c) a specific type of carboxylic
acid is disclosed. The composition contains a strong alkali and a nonionic surface
active agent having an HLB value usually of 3 - 18 at high concentrations and stably
and is homogeneous and transparent. Thus, it is useful for a variety of applications
requiring both alkalinity and detergency, for example, as wettability promoting agents
of glass, fiber, metal, and earthenware surfaces as well as various toiletry products.