Lever Brothers Company, Division of Conopco, Inc.

Lever Brothers Company

National Starch and Chemical Investment Holding Corporation

Unilever Patent Holdings B.v.

Lever Industrial Company, Division of Indopco, Inc.

Mark P Houghton

Charles C Verburg

Jelles Vincent Boskamp

Johannes H Rek

Christophe Michel Joyeux

Rudolf C Verheul

Peter C Knight

Gilbert Martin Verschelling

Paul T Kimpton

Willem Oldenburg

Stephen W Russell

Pauline Farnworth

Cornelis E Van Lare

Marilena Coruzzi

Arie De Weijer

Leandre Naddeo

Alistair Richard Sanderson

Petra Zuidgeest

Carolyn A Rowe

Timothy Richard Bundy

Particulate high bulk density non-spray-dried detergent compositions containing organic non-soap surfactant, zeolite builder and fatty acid soap as powder structurant, prepared by non-tower mixing and granulation processes involving in-situ neutralization of fatty acid to soap with aqueous sodium hydroxide, can suffer from localized particle yellowing on storage when perfume and/or fluorescer are present, due to the presence of areas of high alkalinity. Yellowing is reduced without loss of powder structuring if a defined, less than stoichiometric amount of sodium hydroxide is used for the fatty acid neutralization. Surprisingly, in bleaching powders improved bleach stability is also observed. The resulting powder can be defined in terms of a low 'basic sodium' content.

Detergent compositions and process for preparing them

Polymers can be prepared by polymerizing appropriate monomers in a substantially non-aqueous liquid medium comprising a detergent and/or an ester of a polyhydic alcohol. The invention also includes novel polymers which can be prepared by this process.

Process for the polymerization of polymers in non-aqueous liquid media

A particulate detergent composition having a bulk density of at least 650 g/l which is not the product of a spray-drying process consists of a substantially homogeneous granular base and optional postdosed ingredients. The composition comprises a surfactant system, alkali metal aluminosilicate builder, and a water-soluble salt of citric acid, preferably sodium citrate, and optionally other ingredients. The delivery and dissolution characteristics of the composition in the wash are improved if citrate of Rosin Rammler particle size less than 800 .mu.m is incorporated within the granular base. The composition may also contain postdosed citrate of unrestricted particle size.

Detergent compositions

Substantially non-aqueous liquid cleaning compositions comprise a non-aqueous liquid phase, which liquid phase comprises an alkylpolyglucoside partial ether. Specific novel alkylpolyglucoside partial ether are also claimed.

Liquid cleaning products

A substantially non-aqueous liquid cleaning product composition comprises from 10 to 90% by weight of a non-aqueous organic solvent, from 0.01 to 15% by weight of a deflocculant and from 30 to 90% by weight of particles of solid material dispersed in the solvent, wherein from 25 to 75% by weight of the solid material has a D(3,2) average particle diameter of less than 10 .mu.m and from 75 to 25% by weight of the solid material has a D(3,2) average particle diameter of more than 10 .mu.m, and the D(3,2) average particle size of the solid material is more than 10 .mu.m.

Non-aqueous liquid detergents containing a dispersed solid material with

Substantially non-aqueous liquid cleaning compositions comprising a non-aqueous liquid phase that comprises a polyalkoxylated castor oil derivative and/or polyalkoxylated derivatives of ricinoleic acid (set forth as formula (III)) and/or polyalkoxylated derivatives of analogous fatty alcohols (set forth as formula (IV)).

Non-aqueous liquid cleaning products comprising polyalkoxylated

A substantially non-aqueous liquid detergent composition is provided comprising a liquid phase and a particulate solid phase dispersed therein, said solid phase comprising from about 10% to about 60% by weight based on the total weight of the composition of substantially amorphous sodium metasilicate containing less than 6% by weight of water.

A cleaning composition comprises an alkali metal carbonate detergency builder with a seed crystal material therefor and a heavy metal seqestrant. To avoid deleterious interactions with the seed crystal material, the sequestrant is imobilised on a high surface area solid support medium. The composition may be in the form of powders, aqueous liquids, substantially non-aqueous liquids, gels or pastes.

Detergent compositions containing a carbonate builder, a seed crystal

Use is disclosed of a non-aqueous liquid detergent composition for the washing of fabrics in a domestic automatic dosing washing machine.

Method of washing fabrics in automatic dosing machine

The pourability of a substantially non-aqueous liquid detergent upon storage at low temperatures may be ascertained by incorporating into it a liquid nonionic surfactant blend essentially consisting of:

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Rotterdam, Netherlands

Mark P Houghton