(19)
(11) EP 0 315 204 A3

(12) EUROPEAN PATENT APPLICATION

(88) Date of publication A3:
04.07.1990 Bulletin 1990/27

(43) Date of publication A2:
10.05.1989 Bulletin 1989/19

(21) Application number: 88118440.2

(22) Date of filing: 04.11.1988
(51) International Patent Classification (IPC)4C11D 3/395
(84) Designated Contracting States:
AT BE CH DE FR GB IT LI LU NL SE

(30) Priority: 04.11.1987 JP 278848/87

(71) Applicants:
  • LION CORPORATION
    Sumida-ku Tokyo (JP)
  • SANKYO COMPANY LIMITED
    Tokyo (JP)

(72) Inventors:
  • Nishida, Shigeo
    Tokyo (JP)
  • Tamura, Takamitsu
    Tanashi-shi Tokyo (JP)
  • Toda, Toshimasa
    Chiba-shi Chiba-ken (JP)

(74) Representative: KUHNEN, WACKER & PARTNER 
Alois-Steinecker-Strasse 22
85354 Freising
85354 Freising (DE)


(56) References cited: : 
   
       


    (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.







    Search report