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O/W Cosmetic formulations with a novel silicone acrylates copolymer emulsion

IP.com Disclosure Number: IPCOM000245748D
Publication Date: 2016-Apr-04
Document File: 12 page(s) / 64K

Publishing Venue

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Abstract

The purpose of this work was to evaluate the formulation possibilities with a novel silicone acrylate copolymer emulsion acting as a film former. This silicone acrylates is a copolymer of the dendritic monomer polytrimethylsiloxymethacrylate and one or more monomers consisting of acrylic acid, methacrylic acid, or one of their simple esters. INCI name of this acrylates copolymer is Acrylates/Polytrimethylsiloxymethacrylate Copolymer. This work also demonstrated that the novel silicone acrylates copolymer emulsion could be combined with a broad range of cosmetic ingredients covering O/W types of applications such as sunscreen, foundation and eye liner. The film forming performance was maintained across the different formulations demonstrating the ease of use of this novel emulsion and expanding the possibilities to use silicone acrylates copolymers across a broader range of formulations types with in some case, new types of texture and feel.

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Title

O/W Cosmetic formulations with a novel silicone acrylates copolymer emulsion

Author

Yasue Kanzaki, Dow Corning Toray Co., Ltd. Japan

Abstract

The purpose of this work was to evaluate the formulation possibilities with a novel silicone acrylate copolymer emulsion acting as a film former. This silicone acrylates is a copolymer of the dendritic monomer polytrimethylsiloxymethacrylate and one or more monomers consisting of acrylic acid, methacrylic acid, or one of their simple esters. INCI name of this acrylates copolymer is Acrylates/Polytrimethylsiloxymethacrylate Copolymer.

This work also demonstrated that the novel silicone acrylates copolymer emulsion could be combined with a broad range of cosmetic ingredients covering O/W types of applications such as sunscreen, foundation and eye liner.

The film forming performance was maintained across the different formulations demonstrating the ease of use of this novel emulsion and expanding the possibilities to use silicone acrylates copolymers across a broader range of formulations types with in some case, new types of texture and feel.

Introduction

Silicone fluid has been used around for more than 30 years and became very popular in skin care products thanks to the non-tacky sensory feel. Silicone acrylates copolymer was developed as a film former for color cosmetics and sunscreens to provide long lasting performance, good water resistance and sebum resistance in skin care application but in some cases, it was difficult to obtain stable systems especially O/W systems. This new silicone acrylate copolymer emulsion was found to match and in some case to increase the performance versus the silicone acrylate copolymer dispersion for the following benefits: water and sebum resistance and long lasting performance and this in o/w system but also in w/o systems. The purpose of this work was to demonstrate the formulation possibilities using silicone acrylates copolymer emulsion including the possible combinations with a broad range of cosmetic ingredients covering all types of applications such as sunscreen and foundations.

Composition of silicone acrylates emulsion

 

Sample 1

Sample 2

Sample 3

Acrylates / Polytrimethylsiloxymethacrylate Copolymer

20-50

20-50

20-50

Sodium Lauryl Sulfate

0.5 – 5.0

 

 

Laureth-1 Phosphate 90% aq.

 

0.5 – 5.0

 

Sodium Laureth Phosphate

 

 

0.5 – 5.0

Sodium Hydroxide 50% aq.

 

0.1 – 1.0

 

Preservative

e.q.

e.q.

e.q.

Water

Up to 100

Up to 100

Up to 100

Acrylates / Polytrimethylsiloxymethacrylate Copolymer is a copolymer of the dendritic monomer polytrimethylsiloxymethacrylate and one or more monomers consisting of acrylic acid, methacrylic acid, or one of their simple esters.

Anionic surfactant (Sodium Lauryl Sulfate, Laureth-1 Phosphate and Sodium Laureth Phosphate) can be replaced by any other anionic surfactant such as the following: saturated and unsaturated fatty acid salts, e.g., sodium laurate, sodium stearate, sodium oleate, sodium linolenate, and so forth; alkyl sulfate sa...