A stable bleach composition
AssigneeConopco, Inc., d/b/a UNILEVER
InventorsShanthi Appavoo, Samiran Mahapatra, Pintu Paul
Life of this patent
Estimating the term…
Abstract
The present invention relates to improving the stability of a peroxide containing bleach composition. It particularly relates to such a composition for hard surface cleaning applications including toilet cleaning as well as for fabric cleaning application. It relates to an antimicrobial composition comprising a peroxide bleaching agent which in the presence of a cationic surfactant and an organic acid is more stable than has been heretofore known. This is achieved by inclusion of a stabilizer which in the present invention is a polyalkylene glycol compound.
Claims14
A liquid bleach composition comprising
- (i) 0.1 to 4 wt % of a peroxide compound;
- (ii) 0.1 to 3 wt % of one or more cationic surfactant selected from
- alkyl dimethyl benzylammonium chloride (ADBAC),
- alkyl diethyl benzylammonium chloride (ADEBAC). bis (C8-C18) alkyl di methyl quaternary ammonium chloride preferably didecyl dimethyl ammonium chloride (DDAC), cetyl trimethyl ammonium chloride (CTAC), cetyl pyridinium chloride (CPC), cetrimonium bromide, benzethonium chloride (BZE);
- and dimethyldioctadecylammonium chloride;
- (iii) 0.1 to 5 wt % of an organic acid or salt thereof;
- and
- (iv) 0.1 to 2 wt % of a stabilizer selected from a polyalkylene glycol having a molecular weight in the range of 200 to 600 Da;
- and
- (v) water from 84 to 98.5 wt %.
A method of stabilizing a peroxide compound in a liquid composition comprising
- (i) 0.1 to 4 wt % a peroxide compound;
- (ii) 0.1 to 3 wt % of one or more cationic surfactant selected from alkyl dimethyl benzylammonium chloride (ADBAC), bis (C8-C18) alkyl di methyl quaternary ammonium chloride preferably didecyl dimethyl ammonium chloride (DDAC), cetyl trimethyl ammonium chloride (CTAC), cetyl pyridinium chloride (CPC), cetrimonium bromide, benzethonium chloride (BZE);
- and dimethyldioctadecylammonium chloride;
- and
- (iii) 0.1 to 5 wt % of an organic acid, and
- (iv) water from 84 to 98.5 wt %;
- comprising the step of including 0.1 to 2 wt % of a stabilizer which is a polyalkylene glycol having a molecular weight in the range of 200 to 600 Da therein.
Dependencies are inferred from the claim text.