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

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

Lynda Grainger

Adam Jan Kowalski

Kevin Ronald Franklin

Andrew Hopkinson

Michael Stephen White

Martin Peter Cropper

Neil Robert Fletcher

Nicholas Webb

Kathryn Elizabeth Rowe

Angela Mary Murphy

Isabelle Claire Esser

Jean-Philippe Andre Roger Courtois

Sven Jorg Willi Max Abend

Kathryn Elizabeth Gransden

Antiperspirant formulations

Cellobiose esters and particularly &agr; cellobiose octanonanoate has been found able to structure water-immiscible liquids well, and in particular can produce clear structured emulsions. However, such emulsions tend to lose clarity or structural strength during storage. Deviating from &agr;-cellobiose octanonanoate can result in impaired clarity and/or impaired hardness of emulsion sticks. However, acylated cellobiose which contains acyl substituents of formula &mdash;O&mdash;CO&mdash;R in which R represents an n-octyl residue and the percentage Y of the nonanoate acyl substituent &mdash;O&mdash;CO&mdash;R at the anomeric carbon is at least 60% and the percentage A of &agr; anomer is greater than the anomer and not higher than A&equals;74.5 &plus;0.2Y when Y is up to 92% and not higher than A&equals;161&minus;0.74Y when Y is greater than 92% offers the production of sticks combining structurant stability with product clarity and hardness.

Esters

An antiperspirant composition is a structured emulsion of a continuous phase containing water-immiscible liquid carrier plus a structurant, and a disperse phase which is a solution of antiperspirant active in water or a mixture of water and water-soluble solvent. The structurant is a fully or partially esterified saccharide. The compositions give low visible residue when applied to skin or to clothing.

Antiperspirant compositions

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Bebington, United Kingdom

Lynda Grainger