(19) |
 |
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(11) |
EP 0 315 204 A3 |
(12) |
EUROPEAN PATENT APPLICATION |
(88) |
Date of publication A3: |
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04.07.1990 Bulletin 1990/27 |
(43) |
Date of publication A2: |
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10.05.1989 Bulletin 1989/19 |
(22) |
Date of filing: 04.11.1988 |
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(51) |
International Patent Classification (IPC)4: C11D 3/395 |
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(84) |
Designated Contracting States: |
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AT BE CH DE FR GB IT LI LU NL SE |
(30) |
Priority: |
04.11.1987 JP 278848/87
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(71) |
Applicants: |
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- LION CORPORATION
Sumida-ku
Tokyo (JP)
- SANKYO COMPANY LIMITED
Tokyo (JP)
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(72) |
Inventors: |
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- Nishida, Shigeo
Tokyo (JP)
- Tamura, Takamitsu
Tanashi-shi
Tokyo (JP)
- Toda, Toshimasa
Chiba-shi
Chiba-ken (JP)
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(74) |
Representative: KUHNEN, WACKER & PARTNER |
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Alois-Steinecker-Strasse 22 85354 Freising 85354 Freising (DE) |
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(54) |
Bleaching composition |
(57) A bleaching composition is provided which comprises:
(A) hydrogen peroxide and or a hydrogen peroxide addition compound such as a percarbonate,
perborate and perphosphoric acid:
(B) a hindered amine compound selected from the group consisting of heterocyclic hindered
amines, acyclic hindered amine compounds and salts thereof; and
(C) an active halogen-containing compound capable of forming a hypohalogenous acid
ion in an aqueous solution such as chloramine T and chloramine B. The bleaching composition
may also contain a surfactant such as polyoxyethylene nonylphenyl ether in addition
to the components (A) to (C) to improve the dirt-removing effect. By adding the specified
hindered amine to the combination of the components (A) and (B), the synergistic effect
thereof is further improved. Thus the composition exhibits an excellent bleaching
effect at low temperatures without causing discoloration of colored clothes.