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New High Molecular Weight Silicone Polyether Emulsions for use in Personal Care Applications

IP.com Disclosure Number: IPCOM000200095D
Publication Date: 2010-Sep-27

Publishing Venue

The IP.com Prior Art Database

Related People

Kevin Fang: AUTHOR [+5]

Related Documents

WO2010/075244: PATAPP

Abstract

Dow Corning® HMW 2220 Non-Ionic Emulsion (INCI name: Divinyldimethicone/Dimethicone Copolymer (and) C12-13 Pareth-23 and C12-13 Pareth-3), characterized by an internal phase made of an ultra high viscosity polymer (> 120 millions cPs) has been widely used in skin care and hair care products. Novel variants of this type of material has been developed where polyether functionalities were incorporated within the polymer structure leading to the assumption that new benefits could be demonstrated, mainly in skin care and hair care applications. So this work reviews the evaluation of experimental emulsions of high viscosity silicone polyether emulsions in comparison with the current HMW 2220 Non-Ionic Emulsion for the following benefits: - Impact on the rheology and sensory of water-in-oil & o/w creams - Wash off resistance - Oil absorption - Film properties - Humectancy - Hair conditioning, including wet and dry combing and sensory - Hair styling

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New High Molecular Weight Silicone Polyether Emulsions

for Use in Personal Care Applications

Kevin Fang; Dow

Corning

(

Shanghai

) Management Co., Ltd.

Isabelle Van Reeth; Dow

Corning

(

Shanghai

) Management Co., Ltd

Simon Toth (Dow Corning Corporation, Midland

USA

)

Jeffrey Rastello (Dow Corning Corporation, Midland

USA

)

Bethany K Johnson (Dow Corning Corporation, Midland

USA

)

Abstract:   

Dow Corning® HMW 2220 Non-Ionic Emulsion (INCI name: Divinyldimethicone/Dimethicone Copolymer (and) C12-13 Pareth-23 and C12-13 Pareth-3), characterized by an internal phase made of an ultra high viscosity polymer (> 120 millions cPs) has been widely used in skin care and hair care products. Novel variants of this type of material has been developed where polyether functionalities were incorporated within the polymer structure leading to the assumption that new benefits could be demonstrated, mainly in skin care and hair care applications. So this work reviews the evaluation of experimental emulsions of high viscosity silicone polyether emulsions in comparison with the current HMW 2220 Non-Ionic Emulsion for the following benefits:

-          Impact on the rheology and sensory of water-in-oil & o/w creams

-          Wash off resistance

-          Oil absorption

-          Film properties

-          Humectancy

-          Hair conditioning, including wet and dry combing and sensory

-          Hair styling

Materials for Skin Care:

Materials evaluated

 

Difference of structure

internal phase viscosity

HMW SPE 1

Presence of EO functionality (Slightly higher than in  HMW SPE 2)

approximately 10 million cps

HMW SPE 2

Presence of EO functionality, (below 1% of EO content)

approximately 40 million cps

 DC HMW 2220

No EO

at least 120 million cps

List of commercial materials used in the formulations 

Commercial name

INCI Name

Abbreviation

Dow Corning® HMW 2220 Non-Ionic emulsion

Divinyldimethicone/Dimethicone Copolymer (&) C12-C13 Pareth-23 (&) C12-C13 Pareth-3

DC HMW 2220

Xiameter® PMX-0245 Cyclosiloxane  

Cyclopentasiloxane

PMX  245

Dow Corning® 5225 c Formulation Aid

Cyclopentasiloxane (&) PEG/PPG-18/18 Dimethicone

DC 5225c

Dow Corning® 5200 Formulation Aid

Lauryl PEG/PPG – 18/18 Dimethicone

DC 5200

Dow Corning® RM 2051 Thickening agent

Sodium Polyacrylate (&) Dimethicone (&) Cyclopentasiloxane (&) Trideceth-6 (&) PEG/PPG-18/18 Dimethicone

DC 2051

Dow Corning® FZ-2222

Bis-Isobutyl PEG-24/PPG-7/Dimethicone Copolymer

DC FZ-2222

Xiameter® PMX-200 Silicone Fluid 5 cSt

Dimethicone

PMX 200 5 cSt

Skin Care Evaluation Results:

 

  1. Impact on W/Si  and W/O emulsions rheology and Sensory.

(All the viscosity results were tested by

Brookfield

DV-Ⅲ, at 25℃).

It is well know that DC HMW 2220 has a high impact on the rheology of W/Si emulsion (chew gum effect) and the objective was to check if the same impact could be obtained with HMW SPE emulsion and potentially extended to W/O emulsions due to the presence of the polyether resulting in better compatibility with the oil phase.

 

  1. In W/Si cream

Formulation

Phase A

PMX  245

19%

 

DC 52...