Lever Brothers Company

Lever Brothers Company, Division of Conopco, Inc.

Other

Unilever Patent Holdings B.v.

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

Crosfield Limited

Lever Brothers, Division of Conopco, Inc.

Peter Willem Appel

Petrus L Swinkels

Jelles Vincent Boskamp

Seeng Djiang Liem

Edwin Leo Lempers

Theo J Osinga

Marcel Van Der Kraan

Carolyn Angela Lanceley

Johan Christiaan Klein-Velderman

Francois Delwel

Andrew P Chapple

James William Gordon

Christophe Michel Joyeux

Henning Wagner

Roger Joseph Janssen

Huug Euser

Huig Euser

Marco Waas

Cornelis Gerhard Van Kralingen

Lucas D Van Den Breckel

Theodorus Johannes Cornelius Arts

Pieter A Pel

Lucas D Van Den Brekel

Fredericus Cornelis Dobbe

Hendricus Anthonius Rebers

Theodorus Johannes Arts

Francedillaois Delwel

Detergent tablets for use in fabric washing are made by mixing: (i) particles which contain non-soap organic surfactant and other materials, especially detergency builder, with (ii) material which is other than soap or organic surfactant and which has a solubility in water of at least 10 gm/liter at 20&deg; C., followed by compacting the mixture into a tablet or a region of a tablet using an applied pressure in a range from 3.0 to 35 MPa. Such a pressure, used with the specified mixture, leads to tablets with good strength which also disintegrates with satisfactory speed.

Process for the manufacture of tablet detergent compositions

The speed of disintegration of tablets containing a water-softening agent, especially water-insoluble, water-softening agent intended as detergency builder for fabric washing is enhanced by incorporating granules containing acetate (sodium acetate and/or potassium acetate) along with at least one other ingredient. Such tablets are provided, as are, methods of making the granules.

Method of making water-softening and detergent compositions

A modified aluminosilicate in powder form comprising alkali metal silicate deposited onto aluminosilicate of the zeolite P type particles presents increased Liquid Carrying Capacity.

Modified aluminosilicate

A water purification plant for a swimming pool is provided with a filtering apparatus having a filtering circuit in which a filter and a pump are incorporated and via which water from the swimming pool can be circulated. In a further circuit arranged parallel to at least a part of the filtering circuit, a UV reactor is incorporated. Further, supply members for an oxidizing and disinfecting agent are present. The oxidant in the UV reactor is introduced into the water flowing through said reactor.

Water purification plant

Surfactant blends, processes for preparing them and particulate detergent compositions containing them

A detergent composition having a bulk density of at least 550 kg/m.sup.3 comprises a mixture of:

Granular detergent compositions and their production

A non-spray-dried particulate detergent composition or component having a bulk density of at least 600 g/liter, prepared by mixing and granulating liquid and solid ingredients in a high-speed mixer/granulator, contains a builder polymer and/or a soil-release polymer. The polymer is incorporated during the mixing and granulation process in the form of a non-aqueous premix with a non-aqueous diluent.

Detergent compositions and process for preparing them

Non-sray-drying process for preparing detergent compositions

In order to enhance the stability of sodium percarbonate bleach in particulate detergent compositions, crystalline aluminosilicate and a water-soluble alkali metal silicate in an amount of from 1-20% by weight based on the aluminosilicate are included in the non-spray dried base powder. In order to obtain the stabilizing effect, the crystalline aluminosilicate comprises zeolite MAP or the alkali metal silicate is homogeneously dispersed with respect to the aluminosilicate.

Particulate aluminosilicate-built detergent compositions comprising

A single-step process for the continuous preparation of a granular detergent composition or component, whereby 20 to 45% of a liquid acid precursor of an anionic surfactant, and at least an equivalent amount of a solid water-soluble alkaline inorganic material are continuously fed into a high-speed mixer/densifier, the mean residence time being from about 5 to 30 seconds, whereby the moisture content of the powder in the mixer is from 5 to 15%, and a degree of neutralization of at least 80% is attained.

A process for preparing a granular detergent composition or component having a bulk density of at least 550 g/l, which comprises

Process for preparing high bulk density detergent compositions

A granular detergent composition or component having a bulk density of at least 650 g/l can be prepared by treating a particulate starting material

Process for preparing a high bulk density granular detergent composition

A granular low-phosphate detergent composition is prepared by spray-drying a slurry to give a base powder containing a low to moderate level of sodium tripolyphosphate and low levels of inorganic salts, then postdosing solid material, including sodium sulphate, of high bulk density and of smaller particle size than the base powder. The resulting product has a bulk density at least 150 g/liter greater than that of the base powder and shows improved dispensing properties in an automatic washing machine.

High bulk density detergent composition and process for its production

Growing community of inventors

Rotterdam, Netherlands

Peter Willem Appel