Lever Brothers Company

Lever Brothers Company, Division of Conopco, Inc.

David Machin

Johannes C Van De Pas

Graeme Neil Irving

Adam Jan Kowalski

Galip Akay

Alexander Martin

Appaya R Naik

Cornelis B Donker

Frederik J Schepers

David A Reed

Cornelis Bernard Donker

John F Helliwell

Francis J Leng

Colin Overton

Cornelis Buytenhek

Ozalp Erkey

A process for producing a liquid composition containing at least one active component and a diluent by mixing the active with diluent and/or liquid active to produce a liquid crystal mixture and incorporating diluent into it such that the mixture remains substantially homogeneous to produce a composition in which the concentration of active components is lower than the concentration of active components in the liquid crystal mixture. Novel apparatus for use in the process is also described.

Dynamic mixing apparatus for the production of liquid compositions

Process for the production of liquid compositions

An aqueous liquid detergent composition comprising a primary alkyl sulphate material, which is present in a non-solid dispersed phase.

Liquid detergent compositions

The viscosity of concentrated liquid detergents with high concentrations of surfactant and no more than 5% by weight of swelling clay, may be reduced if the concentrate comprises less than 15% by volume of suspended solid material and is formulated thus:

Liquid detergent compositions containing a PEG viscosity reducing polymer

A structured aqueous detergent composition containing detergent-active material in the form of at least one detergent-active component and at least one electrolyte and having the following phases:

Structured aqueous detergent compositions containing salting-out

Concentrated aqueous liquid detergents containing viscosity reducing

In an aqueous liquid cleaning composition containing anionic synthetic detergent, soap, electrolyte, and particulate abrasive, with the electrolyte being other than tripolyphosphate, the ability to wet a stainless steel surface is enhanced by including 0.01 to 0.5% of polyacrylate or methacrylate having molecular weight of 500 to 3000.

Aqueous liquid abrasive cleaning composition: particulate abrasive

The present invention pertains to an aqueous stable thickened low-pH bleaching composition comprising

Stable thickened low pH liquid bleaching compositions containing

Detergent compositions comprising stable transparent, translucent or opaque hexagonal phase gels contain an anionic or cationic surfactant which is 'secondary', i.e. its polar head group is either positioned non-terminally on a hydrophobic chain or carries two or more hydrophobic chains; optionally a further surfactant which is nonionic or non-'secondary'; a material (the 'additive') capable of forcing the surfactant system into hexagonal phase; optionally builder, perfume, coloring or other adjuncts; and water. A solid such as abrasive or insoluble builder may be suspended in the gel. Preferred gels of the invention contain alkylbenzene sulphonate or dialkyl sulphosuccinate as the 'secondary' surfactant and urea as the 'additive'. The compositions may be used inter alia for manual dishwashing.

Detergent gel compositions in hexagonal liquid crystal form

The invention pertains to liquid scouring compositions comprising by weight of the total composition, from 1 to 65% of a particulate abrasive material, and from 35 to 99% of an aqueous liquid suspending medium, which comprises, by weight of the medium:

Liquid scouring compositions

Detergent bars containing acyl isethionates can exhibit a feeling of drag (relatively high friction) when handled during washing. The drag can be reduced, and therefore the slip feeling of the bar improved, by adding an ethosylated sorbitan ester. Preferably the amount of ester is from about 5% to about 30% by weight of the bar.

Detergent bars with improved properties

Detergent bars containing acyl isethionates can exhibit a feeling of drag (relatively high friction) when handled during washing. The drag can be reduced, and therefore the slip feeling of the bar improved, by adding a sucrose ester. Preferably the amount is from about 5 to about 30%.

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Birkenhead, United Kingdom

David Machin