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Publication Number

US-11523975-B2

Patent

Publication Date

2022-12-13

Expiration Date


Abstract

A cleansing composition and method of using a cleansing composition, the cleansing composition including a blend of three different emollients, the emollients including a first stearic ester, a second stearic ester, and a branched hydrocarbon, where the first stearic ester and second stearic ester are different from each other.

Core Innovation

The invention relates to cleansing compositions in which a fluid composition is embedded into a substrate, where the substrate comprises a nonwoven wipe. The fluid composition includes a cleansing blend having a first stearic ester, a second stearic ester, and a branched hydrocarbon, with the first stearic ester and the second stearic ester being different from each other. Water is present in the fluid composition, and the cleansing blend is present in an amount of from about 5% to about 12% by weight of the fluid composition.

The cleansing blend further requires the first stearic ester, the second stearic ester, and the branched hydrocarbon to be present in a weight ratio of from about 1.1:1.1:1 to about 2:2:1. The disclosed concept is used in wipe-based personal care systems for removing makeup, including mascara, eyeliner, foundation, and lipstick. The invention additionally discusses silicone-free formulations.

From the background and supporting description content provided, the problem being addressed is makeup removal that supports low-grease and low skin/ocular irritation while providing desirable cleansing performance and after-feel. The disclosed approach relies on selecting and blending the stearic ester and branched hydrocarbon components to achieve the reported cleansing and sensory outcomes, and it includes testing and comparison against a silicone-containing commercial cleanser.

Claims Coverage

The partial content includes two independent claims that cover a cleansing composition embedded in a nonwoven wipe with a specific cleansing blend and a rubbing-based method for removing a cosmetic product using that wipe composition. Across the independent claims, the main inventive features include the embedded fluid in a nonwoven wipe, the cleansing blend composition defined by two different stearic esters and a branched hydrocarbon, and quantitative ranges for blend loading and component weight ratio.

Embedded fluid composition in a nonwoven wipe with a specified cleansing blend

A cleansing composition comprising a fluid composition embedded into a substrate, wherein the substrate comprises a nonwoven wipe, and wherein the fluid composition comprises a cleansing blend and water.

Cleansing blend of two different stearic esters and a branched hydrocarbon in defined ratios

The cleansing blend comprising a first stearic ester, a second stearic ester, and a branched hydrocarbon, wherein the first stearic ester and second stearic ester are different from each other, and wherein the first stearic ester, the second stearic ester, and the branched hydrocarbon are present in a weight ratio of from about 1.1:1.1:1 to about 2:2:1.

Specified amount of the cleansing blend in the fluid composition

The cleansing blend is present in an amount of from about 5% to about 12% by weight of the fluid composition.

Rubbing the skin with the wipe-embedded cleansing composition to remove cosmetic products

A method of removing a cosmetic product from the skin of a user, comprising contacting the surface of the skin with a cleansing composition having a fluid composition embedded into a substrate, where the fluid composition comprises the specified cleansing blend and water and the substrate comprises a nonwoven wipe, and rubbing the surface of the skin with the substrate to remove the cosmetic product from the surface of the skin.

The independent claims are grounded in the same core structure: a fluid composition embedded in a nonwoven wipe that contains water and a cleansing blend of two different stearic esters plus a branched hydrocarbon, with the cleansing blend amount and component weight ratios constrained to specified ranges. The second independent claim adds a method step of rubbing the skin with the wipe to remove a cosmetic product.

Stated Advantages

Low-grease, low skin/ocular irritation.

Silicone-free formulations.

Soft/cushiony after-feel.

Rationale provided for makeup removal performance while using the specified cleansing blend.

Documented Applications

Wipe-based personal care systems for removing makeup, including mascara, eyeliner, and foundation.

Method of removing a cosmetic product from the skin of a user by contacting the skin with the nonwoven wipe and rubbing to remove the cosmetic product.

Cosmetic product types explicitly identified for the method include mascara, foundation, eyeliner, and lipstick.

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