(19)
(11) EP 0 322 741 A3

(12) EUROPEAN PATENT APPLICATION

(88) Date of publication A3:
02.05.1990 Bulletin 1990/18

(43) Date of publication A2:
05.07.1989 Bulletin 1989/27

(21) Application number: 88121427.4

(22) Date of filing: 21.12.1988
(51) International Patent Classification (IPC)4: C11D 1/94
(84) Designated Contracting States:
AT CH DE ES LI NL

(30) Priority: 28.12.1987 JP 332793/87

(71) Applicant: KAO CORPORATION
Chuo-ku Tokyo (JP)

(72) Inventors:
  • Noguera, Angel Rosell
    E-08014 Barcelona (ES)
  • Planells, Carlos Cornet
    E-08190 Sant Cugat del Valles (ES)
  • Itahashi, Masaki
    E-08021 Barcelona (ES)

(74) Representative: Wächtershäuser, Günter, Prof. Dr. 
Patentanwalt, Tal 29
80331 München
80331 München (DE)


(56) References cited: : 
   
       


    (54) Low irritant detergent composition


    (57) A low irritant detergent composition composed of (A) an a-olefinsulfonic acid salt, (B) a surfactant of the sulfosuccinic acid ester type, (C) an amphoteric imidazole surfactant and (D) a nonionic alkanolamide surfactant is provided. The surfactant (B) is represented by the following formula:

    wherein. R means R1O-(̵-CH2CH2O)̵m, R, being a linear or branched alkyl or alkenyl group having 8-22 carbon atoms and m standing for a number of 1-20 on average, and M denotes a hydrogen atom or a cationic ion capable of forming a water-soluble salt selected from the group consisting of alkali metal ions, ammonium ion and organoammonium ions. The weight ratio of (A)/(B) is 1/3-3/1, that of (C)/(A) is 1/10-1/1, that of (D)/(A) + (B) is 1/20-1/2, and the sum of (A) + (B) + (C) + (D) accounts for 10-40 wt.%.





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