Lever Brothers Company, Division of Conopco, Inc.

Lever Brothers Company

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

Mengtao He

Michael Massaro

Michael J Fair

James Joseph Dalton

Gregory McFann

Michael Paul Aronson

Liang Sheng Tsaur

Georgia Shafer

Abid Khan-Lodhi

Terence James Farrell

David J Lang

Gail Beth Rattinger

Albert Joseph Post

Michael Francis Petko

Harry Crookham

Edward Andrew Van Gunst

John Gerrard Sheehan

Terrence Farrell

Kennard Daniels

Michael Barratt

The invention provides personal wash compositions which deposit high levels of sunscreen while maintaining good lather. Enhanced deposition, from bar or liquid, is based on specific sunscreens used, particularly on their solubility.

Personal wash sunscreen compositions which deposit and lather well

The present invention relates to skin cleansing bar composition in which polyalkylene glycols of very specific molecular weights are used to define compositions which are mild, foam well and provide consumer-desired sensory profiles. A significant amount of these specific PEGs must be incorporated into the bar to deliver these desired effects. To properly process such a bar composition, the cast-melt method is the preferred technique.

Cast melt bar compositions comprising high levels of low molecular

The present invention relates to solid detergent compositions generally comprising anionic/amphoteric/nonionic surfactant systems. Addition of specific polyol esters wherein the melting temperature and HLB are specifically defined has been found to remarkably enhance the oil/humectant structuring and releasing capabilities of a skin cleansing bar. In a second embodiment, the invention relates to a method for enhancing the bar's capability of including high levels of oil and/or humectant by carefully balancing the polyol ester's weight ratio to the oil and/or humectant. In the third embodiment, the invention relates to a method of enhancing the bar's capability of incorporating high levels of oil and/or humectant and delivering the oil and/or humectant for skin benefit by carefully balancing the polyol ester's weight ratio to the other costructurants such as PEG 8000 and fatty acid. In the third embodiment, skin mildness and especially skin moisturization are significantly enhanced by the detergent bar compositions comprising the combination of the specific polyol ester with oil and/or humectant.

Bar compositions comprising amphiphilic polyol ester structurant which

The present invention relates to personal wash bar compositions, particuly compositions comprising (1) lathering anionic surfactants (e.g., sodium acyl isethionate or fatty acid soap); (2) specific solid, less hygroscopic amphoteric surfactants (e.g., disodium N-lauryl iminodipropionate). The invention relates to the incorporation of significant levels of said solid amphoteric surfactant into the specific bar compositions to achieve superior skin mildness and bar user properties. The invention especially addresses the advantages of using solid, less hygroscopic amphoteric surfactants to reduce the processing difficulties in extrusion and modified extrusion processes.

Bar compositions containing solid amphoteric surfactants

The present invention is directed to specific synthetic bar compositions wherein relatively small amounts of specified alkoxylated nonionic surfactant has been found to enhance mildness of bar compositions without sacrificing processability and desired user properties, such as lather and bar smoothness.

Synthetic bar composition comprising alkoxylated surfactants

The present invention relates to novel chip compositions containing specific polyol ester as the major carrier for liquid skin benefit agents. Addition of specific polyol esters wherein the melting temperature and HLB are specifically defined has been found to remarkably enhance the oil/humectant structuring capability of a skin cleansing bar. Such a polyol ester also permits the liquid benefit agents to be released into a personal wash liquor and then to be delivered to skin via personal wash. In a second embodiment, the invention relates to a method for enhancing the bar's capability of including high levels of oil and/or humectant by applying the adjuvant technology. That is, by coextruding and stamping the mixture of chips containing skin benefit agents and base chips containing a surfactant system, high levels of oils and/or humectants can be incorporated into solid toilet bars by standard extrusion technology. In the third embodiment, skin mildness and especially skin moisturization are significantly enhanced by the detergent bar compositions comprising the combination of the specific polyol ester with oil and/or humectant.

Adjuvant composition

Novel chip compositions comprise specifically defined carriers; benefit agent; and thickening agent (e.g., fumed silica). Use of chips comprising excess of these carriers over benefit agent and thickening agent has been found to allow significant deposition of benefit agent without compromising processing. In a second embodiment, the invention comprises bar compositions comprising mixtures of the chips of the invention and chips containing defined surfactant systems. A process for forming the chips of the invention and a method of enhancing deposition without compromising processing using the chips of the invention are also disclosed.

Bar composition comprising entrapped emollient droplets dispersed therein

The invention relates to bar compositions comprising an alkali metal salt of hydrophobically modified ethylenediaminetriacetic acid.

Bar compositions comprising novel chelating surfactants

The present invention relates to personal wash bar compositions comprising hydrophobic, low viscosity (less than 1000 cp) emollient agents which have been specifically pre-thickened with defined polymer composition. Use of the specific thickeners allow incorporation of the low viscosity oil (viscosity less than 1000 cp) in the personal wash compositions to deliver enhanced skin benefits and desired user properties without compromising foaming and bar processing.

Bar composition comprising low viscosity oils pre-thickened by

The present invention relates to aqueous-based personal wash compositions comprising hydrophobic, low viscosity (less than 1000 cp) emollient agents which have been specifically pre-thickened with defined polymer composition. Use of the specific thickeners allow incorporation of the low viscosity oil (viscosity less than 1000 cp) in the personal wash compositions to deliver enhanced skin benefits and desired user properties without compromising foaming.

Personal wash liquid composition comprising low viscosity oils

The invention relates to a process for making bar compositions comprising salts of hydrophobically modified ethylenediaminetriacetic acid.

Process for making bar compositions comprising novel chelating

The present invention is directed to synthetic bar compositions wherein relatively small amounts of specified hydrophobically modified polyalkylene glycol nonionic polymer has been found to enhance mildness of bar compositions without sacrificing processability and lather property.

Bar composition comprising nonionic polymeric surfacing as mildness

The present invention relates to liquid detergent compositions comprising anionic/amphoteric surfactant systems. Low addition levels of specific hydrophobically modified polyalkylene glycol wherein ratio of hydrophobically modified polyalkylene glycol to anionic surfactant is defined have been found to remarkably enhance mildness without sacrificing processibility and desired user properties. In a second embodiment, the invention relates to a method for enhancing mildness in liquid detergent compositions comprising anionic surfactant by adding said defined hydrophobically modified polyalkylene glycols.

Liquid compositions comprising hydrophobically modified polyalkylene

The present invention is directed to mixed fatty acid soap based bar compositions, which may include synthetic surfactants as co-actives, wherein relatively small amounts of specified polyoxyethylene-polypropylene nonionic polymer has been found to enhance mildness and reduced mush of bar compositions without sacrificing the user properties and processability of the formulations.

Bar composition comprising copolymer mildness actives

The present invention is directed to synthetic bar compositions wherein relatively small amounts of specified polyoxyethylene-polypropylene nonionic polymer has been found to enhance mildness of bar compositions.

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Wayne, NJ, United States of America

Mengtao He