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Formulation Possibilities with Dow Corning® 3901 Liquid Satin Blend

IP.com Disclosure Number: IPCOM000242579D
Publication Date: 2015-Jul-28
Document File: 13 page(s) / 65K

Publishing Venue

The IP.com Prior Art Database

Abstract

This disclosure relates to personal care compositions containing Dow Corning® 3901 Liquid Satin Blend, also known as silicone pituitous fluid, with the INCI name, “Dimethicone/Vinyl Dimethicone Crosspolymer”. These silicone fluid compositions are usually branched, but not exclusively, high molecular weight organopolysiloxanes that demonstrate pituitous rheological behavior. These materials can be incorporated into a broad range of Personal Care formulations, especially Sun care, color cosmetic and even hair care formulations, to which they provide a unique rheology resulting into a stringy texture as well as enhanced sensory with increased lubricity. They also have film-forming properties. This stringiness effect can also be obtained with certain water gellants but in this case, the oil phase is responsible for this effect.

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Formulation Possibilities with Dow Corning® 3901 Liquid Satin Blend  

Authors:     

Takatoshi Toyama, Yasue Kanzaki and Isabelle Van Reeth  (Dow Corning Corporation)

Abstract:

This disclosure relates to personal care compositions containing Dow Corning® 3901 Liquid Satin Blend, also known as silicone pituitous fluid, with the INCI name, “Dimethicone/Vinyl Dimethicone Crosspolymer”. These silicone fluid compositions are usually branched, but not exclusively, high molecular weight organopolysiloxanes that demonstrate pituitous rheological behavior. These materials can be incorporated into a broad range of Personal Care formulations, especially Sun care, color cosmetic and even hair care formulations, to which they provide a unique rheology resulting into a stringy texture as well as enhanced sensory with increased lubricity. They also have film-forming properties.  This stringiness effect can also be obtained with certain water gellants but in this case, the oil phase is responsible for this effect.

Introduction:

Pituitous fluids are fluids that display particular types of rheological behavior. The most easily recognized rheological behavior for the pituitous fluids is their “stringing” behavior which is the formation of thin strings or threads when a small amount of the pituitous fluid is separated from the bulk of the fluid. Another rheological characteristic exhibited by pituitous fluids is that they develop a normal force when subjected to shear stress. When a pituitous fluid is subjected to a shear stress in the x-y plane, a force is developed in the z direction (perpendicular, or “normal” of the plane of shear). This behavior is related to a phenomenon known as the Weissenburg effect whereby polymers in solution that are stirred due to entanglements between polymer chains that develop under shear stress. Using a controlled stress rheometer, the normal force may be measured.  When added to cosmetic formulations, it provide a unique texture feature, a stringiness effect.

Formulation possibilities:

In fllowing cosmetic formulations, “pituous fluid” is Dow Corning® 3901 Liquid Satin Blend. The pituous fluid, however, can be replaced with other type of pituous fluid having similar or same rheological behavior. Furthermore, optionally, all following cosmetic formulations may comprise other cosmetic ingredients exemplified as preservatives, anti-microbial agents, perfumes, salts, antioxidants, pH adjusting agents, chelating agents, algefacients, anti-inflammatory agents, physiologically active components, components for beautifying the skin (such as whitening agents, cell activators, agents for ameliorating skin roughness, blood circulation accelerators, astringents, antiseborrheic agents and the like), vitamins, amino acids, nucleic acids, hormones, clathrate compounds and the like.

1.      Oil in Water sun screen cream

Phase A

Wt.%

Butyl Methoxydibenzoylmethane

3.0 %

Octocrylene

3.6 %

Ethylhexyl Methoxycinnamate

5.0 %

E...