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Formulation Possibilities with new Silicone Elastomer Gel

IP.com Disclosure Number: IPCOM000248359D
Publication Date: 2016-Nov-18
Document File: 15 page(s) / 63K

Publishing Venue

The IP.com Prior Art Database

Abstract

This disclosure relates to personal care compositions containing silicone elastomer gels corresponding to the following INCI definition: crosslinked dimethyl siloxane polymer (silicone elastomer) that is formed by the reaction between Hydrogen Dimethicone or Bis-Hydrogen Dimethicone, and Vinyl Dimethicone or Bis-Vinyldimethicone aligned with following INCI name, "Dimethicone/Vinyl Dimethicone Crosspolymer" or "polysilicone-11". The structure of these elastomer gels are branched methyl siloxane crosslinked with dimethyl Siloxane either in Dimethicone or cyclopentasiloxane. The properties of these elastomers gels are silky sensory feel, improved compatibility versus current all silicone elastomers, clear appearance, low odor and good s thickening effect. Low odor make these elastomers suitable for use in products with low level or no added fragrance so specially targeted to the sensitive skin category of cosmetics. Increased compatibility with common oil phase components improve the ease of use in a formulations. These elastomer gels can be added into a broad range of personal care applications, including, but not limited to, skin creams, body care, anti perspirants and deodorants, shampoos, hair conditioners, color cosmetics, sunscreens, body wash, etc.

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Formulation Possibilities with new Silicone Elastomer Gel

Authors: Bao R. Xinyan and Isabelle Van Reeth (Dow Corning Corporation)

Abstract

This disclosure relates to personal care compositions containing silicone elastomer gels corresponding to the following INCI definition: crosslinked dimethyl siloxane polymer (silicone elastomer) that is formed by the reaction between Hydrogen Dimethicone or Bis-Hydrogen Dimethicone, and Vinyl Dimethicone or Bis-Vinyldimethicone aligned with following INCI name, “Dimethicone/Vinyl Dimethicone Crosspolymer” or “polysilicone-11”. The structure of these elastomer gels are branched methyl siloxane crosslinked with dimethyl Siloxane either in Dimethicone or cyclopentasiloxane. The properties of these elastomers gels are silky sensory feel, improved compatibility versus current all silicone elastomers, clear appearance, low odor and good s thickening effect. Low odor make these elastomers suitable for use in products with low level or no added fragrance so specially targeted to the sensitive skin category of cosmetics. Increased compatibility with common oil phase components improve the ease of use in a formulations.  

These elastomer gels can be added into a broad range of personal care applications, including, but not limited to, skin creams, body care, anti perspirants and deodorants, shampoos, hair conditioners, color cosmetics, sunscreens, body wash, etc.

Introduction

This disclosure relates to personal care compositions containing silicone elastomer gels with the INCI name, “Dimethicone/Vinyl Dimethicone Crosspolymer” or “polysilicone-11”. These silicone elastomer gel compositions are comprised of branched methyl siloxane crosslinked with dimethyl Siloxane either in Dimethicone or cyclopentasiloxane, it will be referred as elastomer gel in the formulations disclosed in this document.  Different functional groups can be attached including but not limited to amino, alkyl, siloxane, polyol, phenyl, epoxy. Other suitable carriers include silicones, both linear and cyclo, organic oils, organic solvents and mixture of these. These elastomers can also be delivered in an emulsion form for potentially greater ease of use in water rich systems. When formulated into personal care compositions, these silicone elastomer gels provide enhanced sensory with less balling, less tackiness, improved formulation stability and increased viscosity in different formulations.

Formulation possibilities:

1.                    Antiperspirant gels/soft solids

Phase A

Wt.%

Cyclopentasiloxane (and) PEG-12 Dimethicone Crosspolymer

10.0

Cyclopentasiloxane

10.0

Dimethicone

10.0

Elastomer Gel

5.0

Phase B

 

Aluminum Zirconium Tetrachlorohydrex GLY

25.0

Propylene glycol

5.0

Water

35.0

Procedure:

1.                    Mix phase A well;

2.                    Dissolve aluminum chloride in mixture of water and propylene glycol under mixing;

3.                    Drop phase B into Phase A slowly;

4.                    Mix final gel well.

Other antiperspirant/deodorant actives could be used such as Aluminum Chloride, Aluminiu...