National Starch and Chemical Investment Holding Corporation

Akzo Nobel N.v.

Joseph Pasapane

Daniel B Solarek

Jean-Pierre Leblanc

Tamara Babenko

Mussarat Noor

Donna L Ronco

Robert L Billmers

John J Tsai

Gary T Martino

Roger Jeffcoat

Frank A Nowak, Jr

Douglas J Hanchett

Maria Tolchinsky

Karen A Bernard

Robert W Sweger

This patent pertains to the use of anionic polyurethanes in a solubilized state which contribute to enhanced aesthetics to skin care compositions. The polyurethanes may be used alone or in combination with another polymer, particularly acrylate and methacrylate polymers.

Use of solubilized, anionic polyurethanes in skin care compositions

Thermally-inhibited starches and flours are used in cosmetic compositions such as skin and hair care products as emulsifiers, thickeners, and aesthetic control agents. The starch or flour is inhibited by dehydrating the starch or flour to anhydrous or substantially anhydrous and then heat treating the dehydrated starch or flour for a time and at a temperature sufficient to inhibit the starch or flour and improve its viscosity stability when dispersed in water. The dehydration may be a thermal or a non-thermal dehydration (e.g., by alcohol extraction or freeze-drying). Preferably, the pH of the starch or flour is adjusted to a neutral or above (e.g., pH 8-9.5) prior to the dehydration and heat treatment.

Cosmetics containing thermally-inhibited starches

Cosmetic compositions useful in skin care are provided containing an effective aesthetic enhancing amount of calcium salt starch derivatives having the following formula: ##STR1## where ST is the starch base material, R is a dimethylene group and R' is a substituent hydrocarbon group having 10 to 16 carbon atoms.

Cosmetic compositions containing hydrophobic starch derivatives

Cosmetic skin and hair care compositions are provided containing amino-multicarboxylate starch derivatives as thickeners or emulsion stabilizers and which have the following formulas: ##STR1## wherein St-O represents a starch molecule;

Cosmetic compositions containing amino-multicarboxylate modified starch

A sunscreen composition comprising a natural based uncooked, granular starch material as the sunscreen agent incorporated in a pharmaceutically acceptable aqueous based starch carrier.

Granular starch as sunscreen agent in aqueous compositions

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Morristown, NJ, United States of America

Joseph Pasapane