(19)
(11) EP 0 460 925 A3

(12) EUROPEAN PATENT APPLICATION

(88) Date of publication A3:
17.02.1993 Bulletin 1993/07

(43) Date of publication A2:
11.12.1991 Bulletin 1991/50

(21) Application number: 91305058.9

(22) Date of filing: 04.06.1991
(51) International Patent Classification (IPC)5: C11D 3/10, C11D 1/14, C11D 1/37, C11D 17/06, C11D 3/12, C11D 1/83, C11D 10/04
(84) Designated Contracting States:
CH DE ES FR GB IT LI NL SE

(30) Priority: 06.06.1990 GB 9012612

(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:
  • Connor, Jeffery Harry
    Wirral, Merseyside L60 0BH (GB)
  • Donaldson, Robert
    Wirral, Merseyside L42 8LF (GB)
  • Evans, David George
    Wirral, Merseyside L43 2NS (GB)
  • Hight, Andrew Timothy
    Wirral, Merseyside L63 9LY (GB)
  • Hollingsworth, Michael William
    Wirral, Merseyside L63 0HE (GB)
  • Peter, Donald
    Wirral, Merseyside L63 9HD (GB)
  • White, Ian Frank
    South Wirral, Cheshire L64 0TP (GB)

(74) Representative: Fransella, Mary Evelyn et al
Unilever PLC Patent Division Colworth House Sharnbrook
Bedford MK44 1LQ
Bedford MK44 1LQ (GB)


(56) References cited: : 
   
       


    (54) Detergent compositions


    (57) For optimum detergency, particulate detergent compositions built with aluminosilicate (25-45 wt%), and containing an anionic surfactant component (5-35 wt%) consisting of primary alcohol sulphate (PAS) (10-100 wt%) optionally with linear alkylbenzene sulphonate (LAS) (0-90 wt%), contain 0-20 wt% sodium carbonate depending on the relative proportions of PAS and LAS present:
    0-10 wt% carbonate for 10-60 wt% PAS/40-90 wt% LAS,
    0-20 wt% carbonate for 60-80 wt% PAS/20-40 wt% LAS, and
    10-20 wt% carbonate for 80-100 wt% PAS/0-20 wt% LAS.





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