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Formulation possibilities with new PEG-free silicone emulsifier

IP.com Disclosure Number: IPCOM000223255D
Publication Date: 2012-Nov-14
Document File: 17 page(s) / 65K

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The IP.com Prior Art Database

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Cindy Delvalle: AUTHOR

Abstract

The purpose of this work is to determine the formulation possibilities with new PEG-Free silicone emulsifiers. This emulsifier has (poly)oxyalkyenes or (poly)glycerol derivatives as PolyEthyleneGlycol-free hydrophilic groups. The presence of dual hydrophobic portions in the emulsifier structure: alkyl and silicone dendrimer improve the compatibility to both organic and silicone oils leading to a wider range of oil type tolerance. Dendrimer (-TM3: tris- trimethylsiloxysilylethyl) is unique in its high branching and methyl packed structure, and can give different surface properties or sensory profiles than ordinary PDMS (polydimethylsiloxane) branching. The purpose of this work is to evaluate the formulation possibilities using this new type of PEG-free silicone emulsifiers as well as the possible combinations with a broad range of cosmetic ingredients covering all types of applications such as skin creams, lipsticks, eye shadows, mascaras, foundations, sunscreens, conditioners, hair waxes and so on. It demonstrates the possibility of formulating this new PEG-free silicone emulsifier in all types of formulations, its easiness of use and its capability of providing new types of texture and sensory feel which were not achieved with current existing materials.

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Formulation possibilities with new PEG-free silicone emulsifier

Authors:  Cindy Delvallé                    Dow Corning Europe S.A.

                     Concettina Scavuzzo          Dow Corning Europe S.A.

Abstract

The purpose of this work is to determine the formulation possibilities with new PEG-Free silicone emulsifiers. This emulsifier has (poly)oxyalkyenes or (poly)glycerol derivatives as PolyEthyleneGlycol-free hydrophilic groups. The presence of dual hydrophobic portions in the emulsifier structure: alkyl and silicone dendrimer improve the compatibility to both organic and silicone oils leading to a wider range of oil type tolerance. Dendrimer (-TM3: tris- trimethylsiloxysilylethyl) is unique in its high branching and methyl packed structure, and can give different surface properties or sensory profiles than ordinary PDMS (polydimethylsiloxane) branching.

The purpose of this work is to evaluate the formulation possibilities using this new type of PEG-free silicone emulsifiers as well as the possible combinations with a broad range of cosmetic ingredients covering all types of applications such as skin creams, lipsticks, eye shadows, mascaras, foundations, sunscreens, conditioners, hair waxes and so on.

It demonstrates the possibility of formulating this new PEG-free silicone emulsifier in all types of formulations, its easiness of use and its capability of providing new types of texture and sensory feel which were not achieved with current existing materials.

Introduction

Silicone emulsifiers have been used for more than 20 years and became very popular in skin care products providing non-tacky sensory feel to consumers. One of the issues with these ordinary emulsifiers available on the market today is that they contain Ethylene Oxide functionalities. Indeed, interest in PEG-free is driven by the concern over the potential for skin irritation and the negative perception of Oekotest related to PEG-containing products.

Another issue of these ordinary silicone emulsifiers is their lower oil phase flexibility; only silicone oils or the oil phase consists of mostly silicones or only organic oils can be emulsified. The emulsification capability of combination of silicone oils and organic ingredients was sought.

The new PEG-free emulsifier used in this work was designed to achieve the best balance of emulsification capability of combination of silicone oil and organic ingredients with or without actives and texture and feel.

The purpose of this work is to determine the formulations possibilities using this new emulsifier as well as the possible combinations with a broad range of cosmetic ingredients covering all types of applications such as skin creams, lipsticks, eye shadows, mascaras, foundations, sunscreens, conditioners, hair waxes and so on...

Material

Where: X is a hydrophilic functionality such as diglycerol

            Y is an organic group (C16 alkyl chain)

This material w...