Unilever Home and Personal Care USA, Division of Conopco, Inc.

Lever Brothers Company

Unilever Home & Personal Care USA, a Division of Conopco, Inc.

Roelant Mathijs Hermant

Ronald Hage

Jean Hypolites Koek

Simon Marinus Veerman

Bernard Lucas Feringa

Stephen William Russell

Michel Gilbert Delroisse

Ronaldus Theodorus Vliet

Minze Theunis Rispens

Christiaan Lamers

Robertus Everardus Kalmeijer

Jane Whittaker

Bas A De Jong

The invention relates to catalytically bleaching substrates, especially laundry fabrics, with a bleaching catalyst in the presence of an unsaturated surfactant.

Air bleaching catalysts with moderating agent

The invention relates to catalytically bleaching substrates, especially laundry fabrics, with a bleaching catalyst in the presence of an unsaturated organic compound and an activity moderator.

Air bleaching catalysts with enhancer and moderating agent

A detergent bleaching composition is provided comprising a compound inclug a specified pentadentate nitrogen-containing ligand. The compound can activate hydrogen peroxide or peroxyacids and provides favourable stain removal properties, particularly in the presence or iron, manganese or copper ions. In addition, an improved stability in alkaline aqueous environment has been obtained, in particular at the peroxy compound concentrations generally present in the fabric washing liquor.

Detergent bleaching composition comprising pentadentate ligand

A bleach and oxidation catalyst is provided comprising a catalytically ace iron, manganese or copper complex including a specified pentadentate nitrogen-containing ligand. The metal complex can activate hydrogen peroxide or peroxyacids and provides favourable stain removal properties. In addition, a considerably improved stability of these metal complex compounds in alkaline aqueous environment has been obtained, in particular at the peroxy compound concentrations generally present in the fabric washing liquor.

Bleach and oxidation catalyst

A bleach and oxidation catalyst is provided comprising a catalytically active metal-complex having a poly-dentate ligand containing at least 6 hetero-atoms. Such metal-complexes can activate hydrogen peroxide, peroxy acids or molecular oxygen and were found to have both favourable stain removal and remarkable dye transfer inhibition properties. In addition, these complexes can be easily prepared.

Bleach activation

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Vlaardingen, Netherlands

Roelant Mathijs Hermant