Skin care compositions

A skin care composition and composition technology, applied in protective and therapeutic dermatological compositions, liquid skin care compositions such as cosmetics, can solve problems such as limited applications

Inactive Publication Date: 2007-04-04
EASTMAN CHEM CO
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The high viscosity of SAIB, especially stickiness (tackiness) severely limits its application in skin care products or as a skin care product itself

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0017] Various blends of SAIB with glycerides and propylene glycol esters were prepared by first heating the SAIB to about 60°C to make it flowable, as described above. The SAIB and ester additive were weighed into a tank and mixed together. The mixture is then heated and mixed to ensure uniformity. The blends prepared are shown in Table I. For the blends indicated as cloudy or separated in Table I, the cloudy or separated occurred during or after the mixture was cooled to room temperature. Blends labeled as providing a smooth feel on the skin have a glossy appearance and provide a water-resistant coating on the skin that is difficult to wash off with soap and water. The water resistance of the coating on the skin is indicated by the beading of water as it is rinsed over the skin. These blends also found the same smooth, glide, shine and water-repelling effect when applied to the lips.

Weight ratio of ester additive: SAIB

Ester Additives

20∶80

...

Embodiment 2

[0018] The contact angles of water on films of SAIB / ester additive blends were measured to demonstrate the water repellency properties of these blends. Contact angle is a measure of surface wettability and is described in ASTM D5725-99 test method. For each of the blends listed in Table II, weigh 0.2 g of the SAIB / Ester Additive Blend to a 50 lb sheet with an area of ​​28.3 cm 2 on kraft paper. Spread the mixture with your fingers to cover the surface of the kraft paper. Drip the water droplet onto the coated kraft paper. Based on the magnified video image of each water drop displayed on a monitor, the contact angle of each water drop resting on the surface of the coated kraft paper was measured. Water droplets that land on uncoated kraft paper are absorbed quickly into the paper. Therefore, the contact angle of water on uncoated paper is effectively 0°. The contact angles of the coated papers are given in Table 2. Larger contact angles indicate less wet and more water r...

Embodiment 3

[0019] Water vapor transmission rate (WVTR) was measured on the SAIB / ester additive blend film to determine if the blend improved skin moisture retention. The WVTR of Vaseline(R) Intensive Care(R) Water Resistant Skin Protectant Lotion (VIC Water Resistant Skin Protectant Lotion) was measured for comparison. For each blend and VIC wash evaluated, 0.5 g of the blend or VIC wash was weighed onto the center of a 9.5 cm diameter piece of kraft paper. Spread the mixture with your fingers to cover the surface of the kraft paper. WVTR is determined according to ASTM E96. The test conditions are 32°C and 50% room humidity. The results are given in Table III, where WVTR is reported as g / m 2 / 24 hours.

Ester Additives / SAIB Blends

WVTR

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PUM

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Abstract

Disclosed are skin care compositions comprising an admixture of sucrose acetate isobutyrate and certain diol and glycerol carboxylate esters. The liquid skin care compositions are useful as cosmetic, protective and therapeutic dermatological compositions and comprise an admixture of sucrose acetate isobutyrate and one or more carboxylic acid esters of a polyol selected from propylene glycol and glycerol wherein the carboxylate ester residues contains from 2 to 10 carbon atoms. The skin care compositions exhibit smoothness and water resistance when applied to the skin such as the human body including eyelids and lips.

Description

field of invention [0001] The present invention pertains to skin care compositions comprising a blend of sucrose acetate isobutyrate and certain glycol and glycerol carboxylates. More particularly, the present invention pertains to liquid skin care compositions such as cosmetic, protective and therapeutic dermatological compositions comprising sucrose acetate isobutyrate and a polyol selected from the group consisting of propylene glycol and glycerin or a blend of multiple carboxylates, wherein the carboxylate residues contain 2-10 carbon atoms. The skin care composition exhibits smoothness and water resistance when applied to skin such as the human body, including eyelids and lips. Background of the invention [0002] Sucrose acetate isobutyrate (SAIB) is a stable liquid used as a bulking agent in citrus beverages such as juices, energy drinks and carbonated soft drinks. Weighting agents have a relatively high specific gravity and are mixed with flavored oils to stabilize...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61K8/60A61K8/06A61Q19/00A61K8/37A61K8/73A61Q1/02A61Q1/10A61Q5/00A61Q17/04
CPCA61Q17/00A61Q19/00A61K8/375A61Q1/02A61Q1/10A61Q17/04A61K8/60
Inventor R·L·明加S·W·多布斯T·A·奥德菲尔德
Owner EASTMAN CHEM CO
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