(19)
(11) EP 0 257 700 A3

(12) EUROPEAN PATENT APPLICATION

(88) Date of publication A3:
18.05.1988 Bulletin 1988/20

(43) Date of publication A2:
02.03.1988 Bulletin 1988/09

(21) Application number: 87201546

(22) Date of filing: 14.08.1987
(84) Designated Contracting States:
CH DE ES FR GB IT LI NL SE

(30) Priority: 26.08.1986 GB 8620635

(71) Applicants:
  • UNILEVER NV
     ()
  • UNILEVER PLC
     ()

(72) Inventor:
  • Sims, Peter Stanford
     ()

   


(54) Improved bleaching or detergent bleach composition


(57) Improved bleaching or detergent bleach compositions are disclosed which comprise a percompound, such as sodium perborate, and

i) a mixture of at least two peroxyacid bleach precursors

wherein R₁ is a lower alkyl group containing 1-4 carbon atoms, or a phenyl group; R₂ is a higher alkyl, aryl or alicyclic radical (substituted or unsubstituted) containing 6-20 carbon atoms; n is 0-1; m is 1-4 and L is a leaving group which exerts an electron-attracting effect, or

ii) a peroxyacid bleach precursor of the formula

wherein R₁, R₂, L and n are as defined above, and mʹ is 1-3.


The compositions show improved bleaching and cleaning effect on multistained fabrics.





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