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

Lever Brothers Company

Unilever Home & Personal Care USA

Peter William Appel

Henning Wagner

Jelles Vincent Boskamp

Marcel Van Der Kraan

Edwin Leo Lempers

Christophe Michel Joyeux

Anshu Mali Gupta

Robert D Den Outer

Johan C Broekhoff

Klaas Schutter

Christophe Michel Joueux

Detergent compositions in the form of tablets used in fabric washing which incorporate most of the surfactants in particles which constitute a substantial part but not all the composition of the tablet. The organic surfactant in this particles provides a substantial part but not all of the weight of the particles. The mixture of anionic and nonionic detergent surfactants is employed wherein anionic is clearly in the majority. The balance of the composition contains a substantial proportion of material other than organic surfactant which is water-soluble.

Detergent compositions in tablet form

A detergent tablet having at least two discrete regions each compacted from particulate composition, wherein a first said region consists of a compacted particulate composition containing swelling disintegrant such that the region increases in volume on contact with water, and in at least one direction through said region is flanked on both sides by one or more other regions which swell to a lesser extent on contact with water than said first region.

Detergent compositions

A detergent tablet of compacted particulate composition which has a pair of opposite faces spaced apart from each other and joined by a peripheral surface of the tablet, wherein the tablet has a first region which provides a first part of a said face and a second region which provides an adjoining part of the face with a discontinuity at the junction of the said parts of the face; and apparatus adapted to make such a tablet.

A process for making washing powder having a high content of sodium soap in which the tendency to form clots and gels is reduced. The reduction is effected by impregnating spray-dried or spray-cooled powder with a specified amount of a water-soluble sodium salt. The amount specified is sufficient to produce a solution of sodium ions having 0.5 to 4 molar initial concentration in the immediate locality of the individual spray-dried particles.

Process for the manufacture of soap powder

Growing community of inventors

Vlaardingen, Netherlands

Peter William Appel