Patents Assigned to Sandoz Products Limited
  • Patent number: 4399050
    Abstract: A thickened aqueous bleach composition comprising(a) an alkali metal hypochloriteand (b) one or more carboxylated surfactants of formula IRO-- CH.sub.2 CH.sub.2 O ].sub.n R.sub.1 --COO.crclbar.A.sym.Iin whichR is a straight chain C.sub.6-20 alkyl, phenyl, a straight or branched chain C.sub.7-30 alkaryl or a straight or branched chain C.sub.7-30 aralkyl, unsubstituted or substituted with substituents unreactive to hypochlorite,R.sub.1 is C.sub.1-4 alkylene,A.sym. is hydrogen ion, an alkali metal cation, or an equivalently charged amount of an alkaline earth metal cation and n is 0.5 to 45. Additionally free ethoxylate can be present in the mixture together with further bleach additives including perfumes.
    Type: Grant
    Filed: May 13, 1981
    Date of Patent: August 16, 1983
    Assignee: Sandoz Products Limited
    Inventors: John Bentham, Jacqueline A. Coates, David L. Connell