(19)
(11) EP 0 373 851 A3

(12) EUROPEAN PATENT APPLICATION

(88) Date of publication A3:
06.03.1991 Bulletin 1991/10

(43) Date of publication A2:
20.06.1990 Bulletin 1990/25

(21) Application number: 89312894.2

(22) Date of filing: 11.12.1989
(51) International Patent Classification (IPC)5: C11D 1/94, C11D 1/90, C11D 1/92, C11D 1/29
(84) Designated Contracting States:
CH DE ES FR GB IT LI NL SE

(30) Priority: 12.12.1988 US 282543

(71) Applicants:
  • UNILEVER PLC
    London EC4P 4BQ (GB)

    GB 
  • UNILEVER N.V.
    NL-3013 AL Rotterdam (NL)

    CH DE ES FR IT LI NL SE 

(72) Inventors:
  • Massaro, Michael
    Bogota New Jersey 07060 (US)
  • Rerek, Mark Edward
    Fanwood New Jersey 07023 (US)

(74) Representative: Elliott, Peter William et al
Unilever plc Patent Division Colworth House Sharnbrook
Bedford MK44 1LQ
Bedford MK44 1LQ (GB)


(56) References cited: : 
   
       


    (54) Detergent composition comprising betaine and ether sulphate


    (57) A light duty liquid detergent, especially suitable for hand dishwashing. The detergent comprises an essentially binary active system of (i) amidoalkyl betaines or amidoalkylsulo­betaines and (ii) alkyl ether sulfates in a weight ratio of 1:4 to 1:1, preferably 1:3. to 1:1, together with hydrotropes and water and certain optional ingredients. The light duty liquids have excellent mildness and foaming properties and do not require large amounts of surfactants.





    Search report