KR102452137B1 - Shape Memory Cosmetic Composition With Improved Pick-up Properties And Preparing Method Thereof - Google Patents

Abstract

The present invention comprises the steps of: 1) dispersing a shape memory polymer and a viscosity modifier in at least one solvent selected from the group consisting of purified water and polyol to prepare a first mixture; 2) dispersing the polyurethane in the polyol to prepare a second mixture; And 3) mixing the first mixture and the second mixture; provides a method for producing a shape memory cosmetic composition comprising a. According to the present invention, it is possible to prepare a shape memory cosmetic composition having shape memory ability and providing elasticity improvement effect when applied to the skin, while having excellent floatability and excellent formulation properties such as spreadability.

Description

Shape Memory Cosmetic Composition With Improved Pick-up Properties And Preparing Method Thereof

The present invention relates to a shape memory cosmetic composition having improved floating properties and a method for preparing the same.

As the skin ages, the aging phenomenon intensifies. Skin exposed to sunlight over a long period of time When exposed, changes occur in the epidermis and dermis tissue, increasing wrinkles, thickening the skin, losing elasticity, and becoming rough and spots. As a solution to such skin aging, a product containing collagen in cosmetics has been developed (Patent Document 1). However, these cosmetics apply collagen to the skin surface, and it is difficult to absorb the collagen, a high molecular weight, through the skin, so wrinkle improvement is expected. couldn't

As another method for providing elasticity to the skin and improving wrinkles, it has been developed in various categories of cosmetic products using shape memory polymers (Patent Document 2). Shape memory polymers can provide immediate skin wrinkle improvement and elasticity by correcting skin imperfections when applied to the skin through its unique shape memory ability. However, in the case of a cosmetic composition using a shape memory polymer, there was a problem in terms of formulation, such as the use of a tool due to poor floatability, and poor spreadability even when applied to the skin.

Accordingly, the present inventors, while researching a manufacturing method for improving the floatability of the shape memory polymer, dispersed the shape memory polymer in a viscosity modifier, and mixed the polyurethane dispersed in the polyol thereto to significantly improve the floatability of the cosmetic composition. The improvement was confirmed, and the present invention was completed.

Korean Patent Publication No. 2004-0042981 Korean Patent Publication No. 1992-0008698

An object of the present invention is to provide a shape memory cosmetic composition with improved floating properties.

An object of the present invention is to provide a method for preparing a shape memory cosmetic composition having improved floating properties.

One embodiment of the present invention comprises the steps of 1) dispersing a shape memory polymer and a viscosity modifier in at least one solvent selected from the group consisting of purified water and polyol to prepare a first mixture; 2) dispersing the polyurethane in the polyol to prepare a second mixture; And 3) mixing the first mixture and the second mixture; provides a method for producing a shape memory cosmetic composition comprising a.

Another embodiment of the present invention is a shape memory polymer; viscosity modifiers; Polyurethane; polyols; and purified water; provides a shape memory cosmetic composition comprising.

According to the manufacturing method of the present invention, it is possible to provide a shape-memory cosmetic composition having shape-memory ability and providing an effect of improving elasticity when applied to the skin, while having excellent floatability and excellent formulation characteristics such as spreadability.

Hereinafter, the present invention will be described in more detail to help the understanding of the present invention.

The terms or words used in the present specification and claims should not be construed as being limited to their ordinary or dictionary meanings, and the inventor may properly define the concept of the term in order to best describe his invention. Based on the principle that there is, it should be interpreted as meaning and concept consistent with the technical idea of the present invention.

In the present invention, "shape memory ability" is generally fixed to a shape in a temporary or resting state under a specific temperature and external physical force (stress), and then relieved to a state in which the original stress is removed by heat, electricity or environmental change. It means the ability to relax.

In the present invention, "float" means the degree to which a user feels that the cosmetic composition is easily picked up by a finger or a spatula, etc., and preferably a tool such as a spatula. It means using your fingers without it.

1. Manufacturing method of shape memory cosmetic composition

One aspect of the present invention comprises the steps of: 1) dispersing a shape memory polymer and a viscosity modifier in at least one solvent selected from the group consisting of purified water and polyol to prepare a first mixture; 2) dispersing the polyurethane in the polyol to prepare a second mixture; And 3) mixing the first mixture and the second mixture; provides a method for producing a shape memory cosmetic composition comprising a.

The shape memory polymer is polyurethane-59 (POLYURETHANE-59), PEG-150/stearyl alcohol/SMDI copolymer (PEG-150/STEARYL ALCOHOL/SMDICOPOLYMER) and PEG-240/HDI copolymer/bis- It may include at least one selected from the group consisting of decyltetradeceth-20 ether (PEG-240/HDICOPOLYMER/BIS-DECYLTETRADECETH-20ETHER).

As an example of the shape memory polymer, PEG-240/H diicopolymer/bis-decyltetradeceth-20 ether uses hexamethylene diisocyanate (HDI) groups as linking groups at both ends of hydrophilic PEG-240. The hydrophobic decyltetradeceth-20 ether group may be connected by a urethane bond.

The shape memory polymer may have a melting point of 55 to 65°C and a cloud point of 60 to 75°C.

The shape memory polymer is preferably used in an amount of 0.1 to 10 parts by weight, or 0.5 to 7 parts by weight, or 1 to 5 parts by weight. In this case, while the cosmetic composition has excellent shape memory ability, the improvement effect of formulation characteristics such as floating property may be excellent.

The viscosity modifier is acrylate copolymer, polyacrylate, polyacrylate crosspolymer, sodium polyacrylate, carbomer, acrylamide, cellulose gum, cellulose, hydroxyethyl cellulose, magnesium aluminum silicate, gellan gum, guar gum, Xanthan gum, bentonite, montmorillonite, hydroxypropylmethylcellulose, hydroxypropylmethylcellulose stearoxyether, ammonium acroyldimethyltaurate/vpicopolymer, Acrylamide/sodium acryloyldimethyltaurate copolymer, hydroxyethylacrylate/sodium acryloyldimethyltaurate copolymer, sodium acrylate/sodium acryloyldimethyltaurate copolymer, and sodium acrylate/acryloyl One or more selected from the group consisting of dimethyl tartrate/dimethyl acrylamide cross-polymer may be included.

The viscosity modifier is 0.001 to 3 parts by weight, or 0.005 to 2 parts by weight, or 0.01 to 1 parts by weight, or 0.05 to 1 parts by weight, Or 0.1 to 1 part by weight is preferably used. In this case, the shape memory polymer may be well dispersed and the effect of improving the formulation characteristics of the cosmetic composition may be excellent.

The purified water is for dispersing the shape memory polymer, and the content may be used in an amount of 20 to 100 parts by weight of purified water, or 50 to 97 parts by weight, or 75 to 95 parts by weight.

In the present invention, the polyol is propanediol, 2,3-butanediol, 1,3-butylene glycol, dipropylene glycol, propylene glycol, butylene glycol, dipropylene glycol, propylene glycol Lycol, caprylyl glycol, decylene glycol, dipropylene glycol, ethylene glycol, hexylene glycol, polyethylene glycol, glycerin, diglycerin, ethylhexyl glycerin, polyglycerin, 1 ,6-hexanediol, 1,2-hexanediol, 1,2-pentanediol, D-panthenol, and may include one or more selected from the group consisting of 1,2-octanediol.

The polyol used in step 1) is selected from the group consisting of 1,6-hexanediol, 1,2-hexanediol, 1,2-pentanediol, D-panthenol and 1,2-octanediol It may include one or more, preferably 1,2-hexanediol, but is not particularly limited thereto.

In the present invention, the polyol is preferably used in an amount of 1 to 20 parts by weight, or 1 to 10 parts by weight, or 1 to 7 parts by weight, or 2 to 6 parts by weight, or 2 to 5 parts by weight. Among them, the content of the polyol used in step 1) may be 0.1 to 5 parts by weight, or 0.5 to 3 parts by weight, or 1 to 3 parts by weight, or 0.5 to 1.5 parts by weight.

In the first mixture preparation step, dispersion may be performed by stirring at 300 to 3000 rpm at room temperature for 1 to 60 minutes, but is not particularly limited thereto.

The polyurethane is polyurethane-1, polyurethane-2, polyurethane-3, polyurethane-4, polyurethane-5, polyurethane-6, polyurethane-7, polyurethane-8, polyurethane-9, poly It may include at least one selected from the group consisting of urethane-10, polyurethane-11, polyurethane-12, polyurethane-13, polyurethane-14, and polyurethane-15.

Specifically, the polyurethane may include a compound represented by the following formula (1).

[Formula 1]

where x is an integer from 50 to 150, y is an integer from 5 to 15, z is an integer from 1 to 5, and n is an integer from 1 to 30.

For example, x may be an integer from 80 to 120, y may be an integer from 8 to 12, z may be an integer from 2 to 3, and n may be an integer from 2 to 20.

The polyurethane may have a weight average molecular weight of 10,000 to 70,000, or 30,000 to 60,000, or 45000 to 55000.

The polyurethane serves as a film former, and is generally included in a cosmetic composition to form a film on the skin, give a feeling of use, and secure the stability of the formulation. In the present invention, it is characterized in that the foamability of the cosmetic composition is improved by the inclusion of polyurethane.

The polyurethane is preferably used in an amount of 0.1 to 10 parts by weight, or 0.5 to 5 parts by weight, or 0.5 to 3 parts by weight, or 1 to 3 parts by weight. In this case, the improvement effect of formulation characteristics such as floating properties of the cosmetic composition may be excellent.

The polyol used in step 2) is propanediol, 2,3-butanediol, 1,3-butylene glycol, dipropylene glycol, propylene glycol, butylene glycol, dipropylene glycol It may include at least one selected from the group consisting of chol, propylene glycol, caprylyl glycol, decylene glycol, dipropylene glycol, ethylene glycol and hexylene glycol, preferably It may be dipropylene glycol, but is not particularly limited thereto.

In the present invention, the polyol is preferably used in an amount of 1 to 20 parts by weight, or 1 to 10 parts by weight, or 1 to 7 parts by weight, or 2 to 6 parts by weight, or 2 to 5 parts by weight. Among them, the content of the polyol used in step 2) may be 0.1 to 10 parts by weight, or 1 to 10 parts by weight, or 1 to 7 parts by weight, or 3 to 5 parts by weight. When the above numerical range is satisfied, the polyurethane may be well dispersed, and the effect of improving the formulation characteristics of the cosmetic composition may be excellent.

In the second mixture preparation step, dispersion may be performed by stirring at 50 to 80° C. at 300 to 3000 rpm for 1 to 60 minutes. By dispersing within the above temperature range, the polyurethane is well dispersed, and thus the miscibility of the second mixture is improved.

The mixing of the first mixture and the second mixture may be performed at room temperature, but is not particularly limited thereto. Conventional equipment may be used for the mixing.

In addition, a polyol may be additionally added when the first mixture and the second mixture are mixed, and in this case, the polyol used in step 3) is different from or the same as the polyol used in step 1) and/or 2). can do.

The polyol used in step 3) is selected from the group consisting of 1,6-hexanediol, 1,2-hexanediol, 1,2-pentanediol, D-panthenol and 1,2-octanediol It may include one or more, preferably 1,2-hexanediol, but is not particularly limited thereto. The content of the polyol used in step 3) may be 0.1 to 5 parts by weight, or 0.5 to 3 parts by weight, or 1 to 3 parts by weight, or 0.5 to 1.5 parts by weight.

2. Shape memory cosmetic composition

Another aspect of the present invention is a shape memory polymer; viscosity modifiers; Polyurethane; polyols; and purified water; provides a shape memory cosmetic composition comprising.

Specific descriptions of the shape memory polymer, the viscosity modifier, the polyurethane, and the polyol may be the same as those described above, and thus a detailed description thereof will be omitted.

The cosmetic composition prepared according to the manufacturing method of the present invention may not only have excellent shape memory ability due to the shape memory polymer, but also have excellent floatability and excellent formulation characteristics such as spreadability.

The cosmetic composition of the present invention contains 0.1 to 10 parts by weight of the shape memory polymer, or 0.5 to 7 parts by weight, or 1 to 5 parts by weight, 0.001 to 3 parts by weight of the viscosity modifier, or 0.005 to 2 parts by weight, or 0.01 to 1 parts by weight. , or 0.05 to 1 part by weight, or 0.1 to 1 parts by weight, 0.1 to 10 parts by weight of polyurethane, or 0.5 to 5 parts by weight, or 0.5 to 3 parts by weight, or 1 to 3 parts by weight, 1 to 20 parts by weight of polyol, or 1 to 10 parts by weight; Or 1 to 7 parts by weight, or 2 to 6 parts by weight, or 2 to 5 parts by weight and 20 to 100 parts by weight of purified water, or 50 to 97 parts by weight, or 75 to 95 parts by weight.

The cosmetic composition of the present invention may be prepared in liquid or solid form using bases, adjuvants and additives commonly used in the cosmetic field. Cosmetics in liquid or solid form, for example, but not limited thereto, may include a form of lotion, cream, lotion, and the like.

The cosmetic composition of the present invention may include commonly used components, for example, antioxidants, preservatives, stabilizers, solubilizers, conventional adjuvants such as vitamins, pigments and fragrances, and a carrier.

In addition, the cosmetic composition of the present invention may further include a wrinkle-improving cosmetic, a cosmetic for whitening, a sunscreen, a light scattering agent, and the like, in order to add or enhance functionality, but is not limited thereto.

The cosmetic composition of the present invention may be prepared in any formulation conventionally prepared in the art, for example, a solution, suspension, emulsion, paste, gel, cream, lotion, powder, soap, surfactant-containing cleansing , oil, powder foundation, emulsion foundation, wax foundation, spray, etc., but is not limited thereto. More specifically, it may be prepared in the form of a flexible lotion, a nourishing lotion, a nourishing cream, a massage cream, an essence, an eye cream, a cleansing cream, a cleansing foam, a cleansing water, a pack, a spray, or a powder.

When the formulation of the present invention is a paste, cream or gel, animal oil, vegetable oil, wax, paraffin, starch, tracanth, cellulose derivative, polyethylene glycol, silicone, bentonite, silica, talc or zinc oxide may be used as a carrier component. can

When the formulation of the present invention is a powder or a spray, lactose, talc, silica, aluminum hydroxide, calcium silicate or polyamide powder may be used as a carrier component. In particular, in the case of a spray, additional chlorofluorohydrocarbon, propane / May contain propellants such as butane or dimethyl ether.

When the formulation of the present invention is a solution or emulsion, a solvent, solubilizer or emulsifier is used as a carrier component, for example, water, ethanol, isopropanol, ethyl carbonate, ethyl acetate, benzyl alcohol, benzyl benzoate, propylene glycol, 1 ,3-butylene glycol oil, glycerol fatty ester, polyethylene glycol or fatty acid ester of sorbitan.

When the formulation of the present invention is a suspension, as a carrier component, a liquid diluent such as water, ethanol or propylene glycol, a suspending agent such as ethoxylated isostearyl alcohol, polyoxyethylene sorbitol ester and polyoxyethylene sorbitan ester, microcrystals Adult cellulose, aluminum metahydroxide, bentonite, agar, or tracanth may be used.

When the formulation of the present invention is a surfactant-containing cleansing agent, as carrier components, aliphatic alcohol sulfate, aliphatic alcohol ether sulfate, sulfosuccinic acid monoester, imidazolinium derivative, methyltaurate, sarcosinate, fatty acid amide ether sulfate, alkyl amidobetaine, fatty alcohol, fatty acid glyceride, fatty acid diethanolamide, vegetable oil, lanolin derivative, or ethoxylated glycerol fatty acid ester may be used.

The cosmetic composition of the present invention may be used alone or in overlapping application, or may be used in overlapping application with other cosmetic compositions other than the present invention. In addition, the cosmetic composition having an excellent skin regeneration effect according to the present invention can be used according to a conventional method of use, and the number of times of use can be varied according to the user's skin condition or taste.

When the cosmetic composition of the present invention is a soap, surfactant-containing cleansing or surfactant-free cleansing formulation, it may be applied to the skin and then wiped off, removed, or washed off with water. As a specific example, the soap is liquid soap, powdered soap, solid soap, and oil soap, the surfactant-containing cleansing formulation is a cleansing foam, cleansing water, cleansing towel, and cleansing pack, and the surfactant-free cleansing formulation is a cleansing cream , cleansing lotion, cleansing water, and cleansing gel, but not limited thereto.

The amount of the composition used and the number of uses per day are appropriately set according to the age, sex, use, severity of symptoms, etc. of the user, but for example, an appropriate amount of the composition is adjusted from once/day to 5 or 6 times/day. It can be applied to the skin at any frequency.

Hereinafter, the present invention will be described in detail by way of preparation examples and examples.

However, the following Preparation Examples and Examples are only for illustrating the present invention, and the content of the present invention is not limited by the following Preparation Examples and Examples.

Example 1

30 g of Avlaure Flex-6 (INCI: PG-240/H diicopolymer/bis-decyltetradeceth-20 ether) and 1.5 g of Aristoflex AVC (INCI: Ammonium Acryloyldimethyltaurate/VP Copolymer) as shape memory polymer 1, A first mixture was prepared by dispersing in a mixture of 20 g of 2-hexanediol (Symrise Shanghai LTD) and 898.5 g of purified water at 3000 rpm for 30 minutes using a disperser (Primix, T.K Robomix).

After dispersing 10 g of polyurethane-15 (Cropasse) in 40 g of dipropylene glycol (Daepyung) using a disperser (Primix, T.K Robomix) at 1000 rpm for 15 minutes at 65° C. to prepare a second mixture, The first mixture and the second mixture were mixed.

Comparative Example 1

30 g of Avlaure Flex-6 (INCI: PG-240/H diicopolymer/bis-decyltetradeceth-20 ether) and 1.5 g of Aristoflex AVC (INCI: Ammonium Acryloyldimethyltaurate/VP Copolymer) as shape memory polymer 1, A first mixture was prepared by dispersing in a mixture of 20 g of 2-hexanediol (Symrise Shanghai LTD) and 908.5 g of purified water at 3000 rpm for 30 minutes using a disperser (Primix, T.K Robomix).

40 g of dipropylene glycol (Daepyung) was added to the first mixture, followed by mixing.

Comparative Example 2

30 g of Avlaure Flex-6 (INCI: PG-240/H diicopolymer/bis-decyltetradeceth-20 ether) and 1.5 g of Aristoflex AVC (INCI: Ammonium Acryloyldimethyltaurate/VP Copolymer) as shape memory polymer 1, In a mixture of 20 g of 2-hexanediol (Symrise Shanghai LTD) and 948.5 g of purified water, using a disperser (Primix, T.K Robomix), it was dispersed at 3000 rpm for 30 minutes at room temperature.

Experimental example

For the compositions of Examples and Comparative Examples, floating properties and shape memory capacity were evaluated according to the following criteria, and the results are shown in Table 1.

<Floating property - sensory evaluation>

Five evaluators were asked to evaluate the floating properties of the compositions of Examples and Comparative Examples according to the following criteria when they were lifted with their fingers.

1: Very Bad, 2: Bad, 3: Fair, 4: Good, 5: Very Good

<Evaluation of floating amount>

When the compositions of Examples and Comparative Examples were lifted with a finger, the amount of floating at one time was measured, and the average value of each performed three times was recorded.

<Shape Memory Ability>

After putting the compositions of Examples and Comparative Examples in a container, it was measured whether or not the composition had a shape memory phenomenon with a rheometer (COMPAC-100II). Specifically, a pin having a diameter of 1.5 cm was prepared and the tip of the pin was vertically inserted from the surface of the cosmetic composition to a depth of about 15 mm, and then the pin was removed. Afterwards, the time (seconds) to return to the original shape was measured, and the average value of each performed three times was recorded.

Example Comparative Example 1 Comparative Example 2 floating 4 One One Floating amount (g) 0.4 0.02 0.03 Shape memory ability (seconds) 20 22 17

From the above results, it can be seen that the composition of Examples has excellent floating properties and shape memory ability.

On the other hand, the composition of Comparative Example 1 that does not include polyurethane and the composition of Comparative Example 2 that does not include both polyurethane and polyol have generally good shape memory, but poor floating properties. In the case of Comparative Example 2, since there is no significant difference in floating properties compared to Comparative Example 1, it can be confirmed that the polyol has no effect on the floating properties improvement.

Claims (14)

preparing a first mixture by dispersing the shape memory polymer and the viscosity modifier in at least one solvent selected from the group consisting of purified water and polyol;
dispersing the polyurethane in a polyol to prepare a second mixture; and
Mixing the first mixture and the second mixture; Method for producing a shape memory cosmetic composition comprising improved floating properties. The method according to claim 1,
Based on 1 to 5 parts by weight of the shape memory polymer, 0.01 to 1 parts by weight of the viscosity modifier, 0.5 to 3 parts by weight of the polyurethane, 1 to 7 parts by weight of the polyol, and 20 to 100 parts by weight of purified water. Way. The method according to claim 1,
The shape memory polymer is polyurethane-59 (POLYURETHANE-59), PEG-150/stearyl alcohol/SMDI copolymer (PEG-150/STEARYL ALCOHOL/SMDICOPOLYMER) and PEG-240/HDI copolymer/bis- A method comprising at least one selected from the group consisting of decyltetradeceth-20 ether (PEG-240/HDICOPOLYMER/BIS-DECYLTETRADECETH-20ETHER). The method according to claim 1,
The viscosity modifier is acrylate copolymer, polyacrylate, polyacrylate crosspolymer, sodium polyacrylate, carbomer, acrylamide, cellulose gum, cellulose, hydroxyethyl cellulose, magnesium aluminum silicate, gellan gum, guar gum, Xanthan gum, bentonite, montmorillonite, hydroxypropylmethylcellulose, hydroxypropylmethylcellulose stearoxyether, ammonium acroyldimethyltaurate/vpicopolymer, Acrylamide/sodium acryloyldimethyltaurate copolymer, hydroxyethylacrylate/sodium acryloyldimethyltaurate copolymer, sodium acrylate/sodium acryloyldimethyltaurate copolymer, and sodium acrylate/acryloyl A method comprising at least one selected from the group consisting of yldimethyltartrate/dimethylacrylamide crosspolymer. The method according to claim 1,
The polyols of steps 1) and 2) are each independently propanediol, 2,3-butanediol, 1,3-butylene glycol, dipropylene glycol, propylene glycol, butylene glycol , dipropylene glycol, propylene glycol, caprylyl glycol, decylene glycol, dipropylene glycol, ethylene glycol, hexylene glycol, polyethylene glycol, glycerin, diglycerin 1 selected from the group consisting of , ethylhexylglycerin, polyglycerin, 1,6-hexanediol, 1,2-hexanediol, 1,2-pentanediol, D-panthenol and 1,2-octanediol Methods involving more than one species. The method according to claim 1,
The polyurethane is a method comprising a compound represented by the following formula 1:
[Formula 1]

where x is an integer from 50 to 150, y is an integer from 5 to 15, z is an integer from 1 to 5, and n is an integer from 1 to 30. The method according to claim 1,
wherein the polyurethane has a weight average molecular weight of 45000 to 55000. shape memory polymer;
viscosity modifiers;
Polyurethane;
polyols; and
A shape-memory cosmetic composition with improved floatability, comprising: purified water. 9. The method of claim 8,
1 to 5 parts by weight of a shape memory polymer;
0.01 to 1 part by weight of a viscosity modifier;
0.5 to 3 parts by weight of polyurethane;
1-7 parts by weight of polyol; and
A composition comprising; 20 to 100 parts by weight of purified water. 9. The method of claim 8,
The shape memory polymer is polyurethane-59 (POLYURETHANE-59), PEG-150/stearyl alcohol/SMDI copolymer (PEG-150/STEARYL ALCOHOL/SMDICOPOLYMER) and PEG-240/HDI copolymer/bis- A composition comprising at least one selected from the group consisting of decyltetradeceth-20 ether (PEG-240/HDICOPOLYMER/BIS-DECYLTETRADECETH-20ETHER). 9. The method of claim 8,
The viscosity modifier is acrylate copolymer, polyacrylate, polyacrylate crosspolymer, sodium polyacrylate, carbomer, acrylamide, cellulose gum, cellulose, hydroxyethyl cellulose, magnesium aluminum silicate, gellan gum, guar gum, Xanthan gum, bentonite, montmorillonite, hydroxypropylmethylcellulose, hydroxypropylmethylcellulose stearoxyether, ammonium acroyldimethyltaurate/vpicopolymer, Acrylamide/sodium acryloyldimethyltaurate copolymer, hydroxyethylacrylate/sodium acryloyldimethyltaurate copolymer, sodium acrylate/sodium acryloyldimethyltaurate copolymer, and sodium acrylate/acryloyl A composition comprising at least one selected from the group consisting of yldimethyl tartrate/dimethyl acrylamide crosspolymer. 9. The method of claim 8,
The polyol is propanediol, 2,3-butanediol, 1,3-butylene glycol, dipropylene glycol, propylene glycol, butylene glycol, dipropylene glycol, propylene glycol , caprylyl glycol, decylene glycol, dipropylene glycol, ethylene glycol, hexylene glycol, polyethylene glycol, glycerin, diglycerin, ethylhexyl glycerin, polyglycerin, 1,6 - A composition comprising at least one selected from the group consisting of -hexanediol, 1,2-hexanediol, 1,2-pentanediol, D-panthenol and 1,2-octanediol. 9. The method of claim 8,
The polyurethane is a composition comprising a compound represented by the following formula 1:
[Formula 1]

where x is an integer from 50 to 150, y is an integer from 5 to 15, z is an integer from 1 to 5, and n is an integer from 1 to 30. 9. The method of claim 8,
The polyurethane composition has a weight average molecular weight of 45000 to 55000.