Lever Brothers Company

Lever Brothers Company, Division of Conopco, Inc.

Robin J Green

Robert W Humphreys

Johannes C Van De Pas

Adrian W Walker

Stephen W Russell

Michael Bazley

Arie Van Der Linden

Aqueous liquid detergent compositions containing fabric softening clay material are prepared without an unacceptable viscosity rise occurring either before, during or after incorporation of the clay, by the steps of:

Detergent liquid processing

New grade of sodium perborate anhydrous obtained from dehydration of sodium perborate monohydrate, wherein the ratio by weight of sodium perborate monohydrate to sodium oxoborate is at least 1.5:1, method of manufacturing and use thereof in detergent compositions are disclosed. The new grade of sodium perborate anhydrous is particularly suitable for use in non-aqueous liquid detergent compositions to improve dispensing behavior without impairing the chemical stability of formulations comprising a peroxy acid bleach precursor, especially N,N,N',N'-tetraacetyl ethylene diamine.

Non-aqueous liquid detergent composition comprising perborate anhydrous

Aqueous liquid bleaching compositions comprising a solid, particulate, substantially water-insoluble organic peroxy acid, e.g. diperoxydodecanedioic acid, stably suspended in an acidic surfactant structured liquid comprising a surfactant, an electrolyte and water in the substantial absence of a thickening agent.

Liquid bleaching compositions

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Voorschoten, Netherlands

Robin J Green