Browse Prior Art Database

Blends of Silicone Polyether and Silicone Resin in Personal Care Formulations

IP.com Disclosure Number: IPCOM000245104D
Publication Date: 2016-Feb-08
Document File: 8 page(s) / 2M

Publishing Venue

The IP.com Prior Art Database

Abstract

Blends of resin and silicone polyether were found to provide long lasting performance in personal care applications. The silicone polyether behaves as a "plasticizer" to the silicone resin, such as MQ resin, yielding transfer resistance and sebum/oil resistance benefits. These benefits were seen in both water-in-oil emulsions and anhydrous formulations for color cosmetics applications. An anhydrous formulation termed in this disclosure may contain a small amount of water, glycols, and other water soluble ingredient up to a total of 10%.

This text was extracted from a Microsoft Word document.
At least one non-text object (such as an image or picture) has been suppressed.
This is the abbreviated version, containing approximately 24% of the total text.

Blends of Silicone Polyether and Silicone Resin in Personal Care Formulations

 Zhi Li, Paul Pretzer, Kimmai Nguyen

 Dow Corning Corporation, USA

Abstract

Blends of resin and silicone polyether were found to provide long lasting performance in personal care applications. The silicone polyether behaves as a “plasticizer” to the silicone resin, such as MQ resin, yielding transfer resistance and sebum/oil resistance benefits.  These benefits were seen in both water-in-oil emulsions and anhydrous formulations for color cosmetics applications. An anhydrous formulation termed in this disclosure may contain a small amount of water, glycols, and other water soluble ingredient up to a total of 10%.

Results and Discussions

Significant advances have been made in the past decades in the long wear transfer-resistance color cosmetics. Combination usage of film former polymer and non-volatile-oil played an important role in the advancement.  Examples of these blends in the lasting color cosmetic products are silicone resins, such as Dow Corning® MQ-1600 Solid Resin, and non-volatile-oil (e. g. silicone polyether, and high molecular weight silicone gums)  [1-3] and silicone resins with thermoplastic polymer silicone polyamide [4,5].  It is hypothesized that the non-volatile oil “plasticized” the MQ resin to yield flexible films for comfort wear, and good adhesion to skin for transfer resistance property [6,7].  Despite these improvements, there are still gaps and challenges to meet customer’s expectation of even longer wear products with better overall performance. To deliver such improvements, films having both transfer resistance and oil/sebum resistance properties are required in addition to the aforementioned properties.

The performance of many current transfer-resistance cosmetics is derived from the physical and chemical properties of the MQ Resin, the non-volatile oil and their respective ratio in the blends [6,7]. Typically, these ingredients are used together in both water-in-oil emulsions and anhydrous formulations.  An anhydrous formulation termed in this disclosure may contain a small amount of water, glycols, and other water soluble ingredient up to a total of 10%.

MQ resin is often referred to as a film former and has been used extensively in formulations of color cosmetic products with transfer resistance claims. It is a methyl capped quadrafunctional silicone resin (Dow Corning® MQ-1600) with some residual silanol functional group.  The resin is delivered as a pure component flake or from a solvent such as cyclopentasiloxane and generally formed a hard and brittle film by itself. An example of commercially available MQ resin is Dow Corning® MQ-1600 resin flake.

Silicone polyethers encompass a broad range of materials that can be described as grafted-block or block copolymers comprising at least one block of polyorganosiloxane type and at least one block of a polyether or other polar functionalities such as glycidyls.  Th...