WO2016167435A1 - Soft polyurethane foam using hydrocarbon polyol, and cosmetic comprising same - Google Patents

Abstract

The present invention provides a composition for a soft urethane foam to prepare a soft urethane foam, comprising a polyol, and a foamed soft urethane foam using the same, wherein the polyol is any one selected from among a hydrocarbon polyol, a vegetable oil, and a vegetable-oil-derived dimer acid, or a mixture of a hydrocarbon polyol with any one selected from among a vegetable oil and a vegetable-oil-derived dimer acid. The present invention provides an impregnation material for impregnation of a cosmetic composition, which can control the polarity of the impregnation material for impregnating a hydrophilic cosmetic composition, and an impregnation-use urethane foam composition for preparing the same.

Description

Flexible polyurethane foam using hydrocarbon polyol and cosmetics containing it

This application claims priority based on Korean Application No. 10-2015-0051752, filed on April 13, 2015, and Korean Application No. 10-2015-0159751, filed on November 13, 2015, The specification and drawings are incorporated herein by reference in its entirety.

TECHNICAL FIELD The present invention relates to a polyurethane foam and a cosmetic product comprising the same, and more particularly, to a flexible polyurethane foam easily controlled in polarity of a polyurethane foam and a cosmetic product containing the same.

The polyurethane foam is obtained by preparing a resin premix usually containing a polyol, a catalyst for producing a polyurethane foam, a foaming agent and the like, and reacting the resin premix with a polyisocyanate.

BACKGROUND ART Polyurethane foams are widely used as seat cushions, seat backs, head rests for automobiles and the like due to their excellent cushioning properties, heat insulating materials such as electric refrigerators, freezers, freezing warehouses, Arm rests, instrument panels, interior trimings such as door trim and ceiling materials, seat materials for motorcycles, airplanes, railway vehicles, and office supplies such as furniture, bedding, office cushions, .

Generally, petroleum-based synthetic polyols are mainly used for the production of urethane foams. (Petrovic, ZS, "Polyurethanes from Vegetable Oils," Polymy. Rev., 48 (1), pp. 41-50). In this study, Polyols from Canola Oil, Biomacromolecules, 8 (7), 2203-2209 (2007), etc.). However, most of the urethane foam manufacturing technology using vegetable oil is about hard urethane foam, and in the field of soft urethane foam, research on the production of urethane foam using vegetable oil is poor. Although some soybean oil based polyols have been studied for the synthesis of flexible foams, a large amount of closed cells have actually been found. (J. John, M. Bhattacharya, and R. B. Turner, Characterization of polyurethane foams from soybean oil, J. Appl. Polym. Sci., 86, 3097 (2002).)

On the other hand, flexible polyurethane foam has an open cell structure and excellent elasticity. It has excellent mechanical strength (elongation, tensile strength, abrasion resistance) and is used in various industrial fields such as packaging materials.

In recent years, a form in which a cosmetic composition is impregnated into a urethane foam such as a cushion fact and a cushion cosmetic has been regarded as a breakthrough product in the cosmetics industry, and the interest in the soft urethane foam is also increasing in the cosmetics industry.

The urethane foam prepared from a polyol, an isocyanate having a bifunctional or higher functionality, a foaming agent, and the like may have various properties depending on the polyol used. The flexible urethane foam sponge is made of a polyol having a relatively high molecular weight, and polyether and polyester are mainly used for each type.

An ether type polyurethane foam is generally used as a foamed urethane foam impregnated with a cosmetic composition. However, the ether type polyurethane foam has lower tensile strength, hardness, elongation and flame retardancy than ester type polyurethane using a polyol containing an ester bond. The ester type polyurethane foam has a uniform cell structure and is resistant to oxidation because of its excellent chemical properties. However, unlike the ether type polyurethane foam, it is known that it is hydrolyzed and has a weak water resistance. In fact, for this reason, it has been used extremely limitedly for the purpose of impregnating a cosmetic composition.

Efforts have been made to mix an ether-based polyol and an ester-based polyol to select an appropriate urethane foam-impregnated material depending on the physical properties of the cosmetic composition and the difference in the contained components. However, there is a problem that the compatibility of the polyols is poor.

On the other hand, although it has been possible to control a little polarity by controlling the composition ratio of isocyanate and other additives used in the production of the polyurethane foam, there has been a problem that it can not be used in various ways depending on the physical properties of the cosmetic composition.

In order to solve the above problems, the present invention provides a soft urethane foam which is improved in durability and can be used without being deformed.

The present invention also provides a new flexible urethane foam which can be used in various fields in the cosmetics industry.

The present invention also provides a novel impregnation material for impregnating a cosmetic composition, and cosmetics containing the same.

The present invention provides an impregnation material for impregnating a cosmetic composition, which is advantageous for impregnating a lipophilic cosmetic composition, and a cosmetic product containing the same.

The present invention also provides a method for controlling the polarity of the impregnation material according to the kind of the cosmetic composition and a impregnation material for impregnating the cosmetic composition using the same.

In order to solve the above problems, the inventors of the present invention provide a composition for producing a flexible urethane foam using a hydrocarbon polyol. In the case of a polyol based on vegetable oil, the molecular weight of the polyol for producing the foamed foam is usually 1000 g / mol or less, and since the flexible foam is not produced, the crosslinked density is high and the cell opening becomes difficult, . In order to solve such a problem, the inventors of the present invention have conducted research for a long period of time in order to produce a soft urethane foam which is easy to form an open cell structure while producing a urethane foam by using a polyol containing a vegetable oil, thereby completing the present invention.

In another embodiment, the present invention provides a soft urethane foam composition using a vegetable oil or a vegetable oil derived dimer acid, and a soft urethane foam using the composition. Preferably, the present invention provides a soft polyurethane foam composition for cosmetics using vegetable oil or vegetable oil-derived dimer acid and a soft urethane foam using the same. Preferably, the present invention provides a flexible urethane foam composition comprising at least one selected from the group consisting of a hydrocarbon polyol and a vegetable oil or a vegetable oil-derived dimer acid. Preferably, the present invention provides a cosmetic composition containing the composition for impregnating the cosmetic composition and the impregnation material, which are prepared using the composition for producing the urethane foam.

The inventors of the present invention have conducted research for a long time to develop a flexible urethane foam which can utilize the advantages of ester urethane foam and ether urethane foam, thereby completing the present invention. In particular, the inventors of the present invention have confirmed that impregnation efficiency may be influenced by the physical properties of the cosmetic composition impregnated into impregnated material, and development of a urethane foam impregnated material using a mixture of ether polyol and ester polyol We have tried to develop new materials that can overcome the difficulties.

The inventors of the present invention have developed soft urethane foam using a new type of polyol which has not been tried in the cosmetics industry at all.

Although there are examples of producing foamed foam by incorporating vegetable oil into the polyol contained in the composition for preparing urethane foam, there is a problem that the crosslinked density is high and the closed cell structure is formed so that it can hardly be utilized in the field of using the soft urethane foam . However, the urethane foam produced according to the embodiments of the present invention formed an open cell structure and confirmed that it is advantageous for forming a flexible urethane foam.

Preferably, the flexible urethane foam is used in industrial and household cleaning tools, furniture and automobile parts such as sofas and beds, oil absorbing materials, sound absorbing materials, etc. Especially in the cosmetics industry, it is used as puffs for application, packing and packing materials, have. And can be suitably used for impregnating materials for carrying a cosmetic composition in particular.

In the cosmetics manufacturing industry, there is a need to carry cosmetics having moisture and oil together, a property of continuously impregnating the impregnated material using a dispenser, a property of maintaining a certain shape despite external compression or pressure, a wear of a cosmetic impregnated material Due to the property that no collapse should occur, there is a limit to selecting a polyol for producing a urethane foam for impregnating a cosmetic composition. However, the inventors of the present invention have developed a polyol for the production of a completely new cosmetic composition-impregnated urethane foam capable of satisfying all conditions, which was hardly predicted in the prior art.

The present invention relates to a composition for flexible urethane foam for the production of flexible urethane foams comprising a polyol, wherein the polyol is selected from the group consisting of i) a hydrocarbon polyol, ii) a vegetable oil and a dimer acid derived from a vegetable oil, or iii) And dimer acid derived from vegetable oil can be used. Preferably, the polyol may include a hydrocarbon polyol and a vegetable oil.

According to another embodiment of the present invention, the polyol including the hydrocarbon polyol and the vegetable oil may contain less than 50% by weight of vegetable oil, preferably less than 45% by weight, More preferably less than 42% by weight.

In the case of the polyol containing the hydrocarbon polyol and the vegetable oil together, when the content of the vegetable oil exceeds 50% by weight, there is a problem that the compatibility of the polyol is poor and stable soft urethane foam is not produced.

According to one embodiment of the present invention, the i) hydrocarbon polyol and ii) the dimer acid derived from vegetable oil or vegetable oil have a carbon-carbon double bond, and some or all of the double bond may be modified through an addition reaction .

The modified double bond may be a double bond present in the side chain rather than the main chain.

As used herein, the term " modified " means that a double bond reaction initiator or a monomer such as a vinyl monomer, an acrylic monomer, an acrylic ester monomer or the like is added to a double bond of carbon and carbon to induce crosslinking or graft polymerization it means.

As used herein, the term "main chain" is used in a sense generally recognized in the industry and means a bond forming a skeleton of a hydrocarbon polyol, a vegetable oil or a vegetable oil derived dimer acid of the present invention, and includes a hydrocarbon having a large number of carbon atoms Chain.

As used herein, the term " side chain " refers to a bond extending to the side chain of the main chain.

The hydrocarbon polyol may have a number of hydroxy functional groups of 2 to 10 and a number average molecular weight (g / mol) of 100 to 100,000, preferably 300 to 50,000, and more preferably 500 to 10,000. When the molecular weight of the hydrocarbon polyol of the present invention is less than 100, there may be a problem that elasticity is lost. When the molecular weight exceeds 100,000, the viscosity is high at room temperature, which is difficult to apply to the foam manufacturing process, have.

The hydrocarbon polyol contained in the composition for producing the flexible urethane foam of the present invention is preferably a cis-1,4-polybutadiene polyol, a trans-1,4-polybutadiene polyol, a 1,2-polybutadiene polyol, Polybutadiene polyol / trans-1,4-polybutadiene polyol / 1,2-polybutadiene polyol, and mixtures thereof. The polybutadiene polyol may be any one selected from the group consisting of cis-1,4-polybutadiene polyol / trans- Mixtures can be used.

The vegetable oil may include castor oil, soybean oil, sunflower oil, safflower seed oil, olive oil, seed oil, etc., and if necessary, a modified seed oil into which a hydroxyl group has been introduced, a modified sunflower oil into which a hydroxyl group has been introduced, and a modified seed oil into which a hydroxyl group has been introduced Can be used. Preferably, the vegetable oil may include castor oil. The castor oil has a high content of linoleic acid, which is a major component, and has various modifications because it has multiple hydroxyl groups as well as triglycerides and double bonds of various vegetable oils. Specifically, unlike other vegetable oils, introduction of a hydroxyl group for use as a polyol is not required, and the molecular weight is large, which is advantageous for the production of the flexible urethane foam of the present invention.

The dimeric acid derived from vegetable oil may be derived from resources generated from waste cooking oil, safflower seed oil, tall oil, fish oil, vegetable oil, olive oil, etc. For example, a dimer acid having a carbon number of 36 or more and a carbon number Compounds containing 54 or more trimer acids or non-conjugated dimer acids may be used.

Such a compound is a substance generally known at present, and in the present invention, a dimeric acid derived from a vegetable oil represented by the following formula (1) can be exemplified.

[Chemical Formula 1]

(Wherein R ₁ and R ₂ each represent a C 4 to C 8 straight chain alkylene group, and R 3 and R 4 represent a straight chain alkyl group of C 4 to C 8.)

According to another embodiment of the present invention, the hydrocarbon polyol of the present invention and the dimer acid derived from vegetable oil or vegetable oil have a carbon-carbon double bond, and a part or all of the double bond may be modified through an addition reaction.

The modification reaction may be carried out through crosslinking between polymers, or may be performed by graft polymerization by adding any one selected from the group consisting of vinyl monomers, acrylic monomers and acrylic ester monomers.

For example, as can be seen from Fig. 1, the double bond of the polybutadiene polyol can form a crosslinking with the double bond reaction initiator.

Also, as shown in Fig. 2, for example, the double bond of the polybutadiene polyol can be grafted by addition of acrylic acid, which is one of the acrylic monomers.

1 and 2 illustrate the present invention in order to illustrate the present invention, and the present invention is not limited to the description of FIGS. 1 and 2 above.

Preferably, the foam prepared by using the composition for preparing foam using the hydrocarbon polyol and the vegetable oil (or the vegetable oil-derived dimer acid) together can easily control the polarity of the cosmetic composition when the cosmetic composition is impregnated and used.

The double bond reaction initiator is not particularly limited, and various examples such as a radical reaction initiator such as a peroxide, a peroxide ester, and an azo compound and a cation initiator such as boron trifluoride may be used.

Butyl peroxybenzoate, t-amyl peroxy-2-ethylhexanoate, t-butyl peroxypivalate, t-amyl peroxy pivalate, di- (2 Di-sec-butyl peroxydicarbonate, 3-hydroxy-1,1-dimethylbutyl peroxyneodecanoate, 3-hydroxybutyl peroxydodecanoate, -Hydroxy-1,1-dimethylbutylperoxyneoheptanoate, t-amylperoxy-neodecanoate, 2,5-dimethyl-2,5-di- (2-ethylhexanoylperoxy ) Hexane, diisonononanoyl peroxide, dydodecanoyl peroxide, dioctanoyl peroxide, t-butyl perneodecanoate, t-butyl perbenzoate, 1,1-dimethyl-3-hydroxybutyl Peroxy-2-ethylhexanoate, dibenzoyl peroxide, 1,1,3,3-tetramethylbutyl peroxypivalate, di- (3,5,5-trimethylhexa 2-ethylhexanoate, azobis (isobutyro-nitrile), 2,2'-azobis- (2-methoxybutyl) Ronitril), and mixtures thereof. The initiator may be selected from the group consisting of an initiator,

Also, for example, benign assets, Lewis acid, or compounds that are easy to ionize can be used. Specific examples thereof include H ₂ SO ₄ , HClO ₄ , HCl, BF ₃ ,  There may be used such as _{O (C 2 H 5) 2} , TiCl 4, AlCl 3, AlBr 3, SnCl 4: BCl l3, BF 3. In addition, various onium salts such as ammonium salts, phosphonium salts and sulfonium salts, and methyltriphenylphosphonium bromide, ethyltriphenylphosphonium bromide, phenyltriphenylphosphonium bromide, and the like can be used without limitation, And may be mixed with various radical initiators as described above.

According to another embodiment of the present invention, the double bond of the hydrocarbon polyol and the vegetable oil or the vegetable oil-derived dimer acid may be added to any one or more selected from the group consisting of vinyl monomers, acrylic monomers, and acrylic ester monomers.

For example, a carboxyl group-containing vinyl monomer selected from the group consisting of acrylic acid, methacrylic acid, carboxyethyl acrylate, carboxypentyl acrylate, itaconic acid, maleic acid, fumaric acid, and crotonic acid; An anhydride monomer selected from the group consisting of maleic anhydride, and itaconic anhydride; Acrylate such as hydroxyethyl acrylate, hydroxyethyl methacrylate, hydroxypropyl acrylate, hydroxypropyl methacrylate, hydroxybutyl acrylate, hydroxybutyl methacrylate, hydroxyhexyl acrylate, and hydroxyhexyl methacrylate A hydroxyl group-containing vinyl monomer selected from the group consisting of: N-substituted amide-based vinyl monomers selected from the group consisting of N, N-dimethyl acrylamide, and N, N-dimethyl methacrylamide; Acrylic acid alkoxyalkyl vinyl monomers selected from the group consisting of methoxyethyl acrylate, methoxyethyl methacrylate, ethoxyethyl acrylate, and ethoxyethyl methacrylate; Vinyl pyrrolidone, vinyl pyrrolidone, vinyl pyridine, vinylpiperidone, vinylpyrimidine, vinylpiperazine, vinylpyrazine, vinylpyrrole, vinylimidazole, vinyloxazole, vinyl Vinyl monomers selected from the group consisting of acrylonitrile, methacrylonitrile, methacrylonitrile, methacrylonitrile, methacrylonitrile, methacrylonitrile, methacrylonitrile, A cyanoacrylate vinyl monomer selected from the group consisting of acrylonitrile, and methacrylonitrile; An epoxy group-containing acrylic monomer selected from the group consisting of glycidyl acrylate, and glycidyl methacrylate; Methacrylic acid polyoxypropylene glycol, methacrylic acid polyethylene glycol, acrylic acid polyethylene glycol, methacrylic acid polyethylene glycol, acrylic acid polypropylene glycol, methacrylic acid polypropylene glycol, methacrylic acid methoxyethylene glycol, methacrylic acid methoxypolyethylene glycol, Glycol-based acrylic ester monomers selected from the group consisting of propylene glycol; Or a mixture of two or more thereof may be used.

The composition for foam production of the present invention may further contain blowing agents, foam stabilizers, catalysts and isocyanate compounds necessary for producing a polyurethane foamed foam, in addition to any one selected from the group consisting of the hydrocarbon polyol and vegetable oil or vegetable oil derived dimer acid .

As the foaming agent, physical foaming agents such as water, hydrofluorocarbons (HFC-245fa etc.), hydrocarbons (cyclopentane, etc.), carbon dioxide gas, liquefied carbon dioxide gas, and dichloromethane can be used as chemical foaming agents. Among these, water, carbon dioxide gas, and liquefied carbon dioxide gas are preferable from the viewpoint of the present invention. As the foaming agent according to the present invention, a physical foaming agent such as liquefied carbon dioxide gas can be used, but water can be most preferably used. When water is used as the blowing agent, the amount is preferably 1.3 to 6.5 parts by mass, more preferably 1.5 to 6.0 parts by mass, further preferably 1.8 to 5.5 parts by mass, and particularly preferably, 2.0 to 5.0 parts by mass may be included. When the amount of water as the foaming agent is in the above range, foaming is stabilized and effectively performed.

Conventionally known foam stabilizers can be used as the foam stabilizer, and there is no particular limitation, but it is usually preferable to use an organosilicon surfactant. For example, FV-1013-16, SRX-274C, SF-2969, SF-2961, SF-2962, L-3601, SZ-1325, SZ-1328 and Momentive of Dow Corning Silicone Co., L-5309, L-3600, L-5366, L-580 and Y-10366 manufactured by Mitsubishi Chemical Corporation and DC-2525 and DC-6070 manufactured by Air Products, B-8715 and B- -8450 and the like can be preferably used. The amount of the foaming agent to be used may be preferably 0.1 to 10 parts by mass, more preferably 0.5 to 5 parts by mass, based on 100 parts by mass of the total polyol component.

The catalyst may be any catalyst used in the manufacture of polyurethane foamed foam in the industry. Aliphatic amines such as triethylenediamine, bis (2-dimethylaminoethyl) ether, 1-isobutyl-2-methylimidazole and morpholine; Organotin compounds such as tin octanoate and dibutyltin dilaurate, and the like can be preferably used. These catalysts may be used singly or in combination of two or more.

To prepare the urethane foam of the present invention, a polyol mixture and an isocyanate compound are mixed. The isocyanate compound is selected from the group consisting of tolylene diisocyanate (TDI), diphenylmethane diisocyanate (MDI), naphthalene diisocyanate (NDI), xylenediisocyanate (XDI), isophorone diisocyanate (IPDI), hexamethylene diisocyanate , And a derivative thereof.

The composition for producing the polyurethane of the present invention may further include components commonly used in the industry. Examples include cell stabilizers, crosslinking agents, chain extenders, flame retardants, fillers, auxiliary urethane gelling catalysts, transition metal catalysts, and the like, examples of which may include all components known in the art.

According to one embodiment of the present invention, the soft urethane foam may be produced by the following production method.

A method for producing a general foamed urethane foam in the industry can be used and is not limited to the following production method. The following production method is merely an example of a method for producing the polyurethane foam of the present invention.

(S1) As an initiator for a double bond reaction for water and a physical foaming agent, silicone foam stabilizer, amine and organometallic compound as a reaction catalyst, and crosslinking and grafting of polybutadiene, as a chemical foaming agent in hydrocarbon polyol and dimer acid derived from vegetable oil or vegetable oil Mixing the radical generating compound with an additive such as a vinyl monomer and an acrylic monomer, and an antioxidant; (S2) mixing with the isocyanate compounds forming the polyurethane through reaction with the polyol mixture; And (S3) curing the resulting mixture of the step (S2) through a foaming reaction and a gelling reaction at a temperature of room temperature to 100 ° C or higher.

According to an embodiment of the present invention, a polyurethane foam for impregnating a cosmetic composition, comprising at least one selected from the group consisting of hydrocarbon polyol and vegetable oil or vegetable oil-derived dimeric acid derivative; And a cosmetic composition impregnated in the polyurethane foam.

The present invention provides the use of a polyurethane foam produced by using at least one polyol selected from the group consisting of hydrocarbon polyol and vegetable oil or vegetable oil-derived dimer acid as a cosmetic impregnation material.

The impregnation material of the present invention can be used for impregnating a liquid form composition, and is preferably used for impregnating a cosmetic composition.

The term " impregnation " in the present specification refers to the meaning generally used in the industry for producing a cosmetic composition, and specifically means that the contents are carried on a material having a pore formed therein, such as a sponge.

The meaning of the above-mentioned support means the ability to contain and store any substance (for example, it may include cosmetics in the form of liquid or gel, as well as cosmetics with high viscosity).

For example, the material having fluidity may include daily necessities including perfume, liquid detergent (kitchen, laundry, etc.), and the kind is not particularly limited as long as it is in a liquid form having fluidity.

In addition, the cosmetic composition can be used for cosmetics in which a fluid cosmetic composition can be stored therein and applied to skin using a separate tool or the like, but is not limited thereto.

The fluid cosmetic composition may include a skin, a toner, a lotion, a cream, a gel, a liquid foundation, a gel-type foundation, etc., and the formulation is not particularly limited.

The cosmetic comprising the impregnant according to the present invention is characterized in that a lipophilic foam using a hydrocarbon polyol in which a double bond of a hydrocarbon polyol is crosslinked by a double bond reaction initiator, .

In the specification according to the invention, the term " trauma " may refer to the portion of the cosmetic composition that has the most direct contact with the impregnation material when impregnated with the impregnation material. For example, when a single phase consists of a single phase (ie, a single phase or single phase), the single phase is referred to as a traumatic phase. In the case of a water-in-oil type emulsion, a traumatic phase is an oil phase. (X, Y) may be in the form of a water phase or an oil phase, and may be abbreviated as 'W' in the case of water phase. 'O'), the 'Y' corresponds to the trauma, and the trauma is 'O2' in the oil-in-water type (O1 / W / O2) .

The cosmetic may be obtained by impregnating a cosmetic composition with a flexible polyurethane foam obtained by foaming a modified hydrocarbon polyol by forming a double crosslinking of a double bond of a hydrocarbon polyol with a reaction initiator. For example, the cosmetic composition may be impregnated, but it may be impregnated with a cosmetic composition having a viscosity of 1,000 to 10,000 cPs, for example.

In another embodiment, the cosmetic may be obtained by impregnating a cosmetic composition with a flexible polyurethane foam obtained by foaming a modified hydrocarbon polyol by adding at least one monomer selected from a vinyl monomer and an acrylic monomer to a double bond of a hydrocarbon polyol. For example, the cosmetic composition may be impregnated, but it may be impregnated with a cosmetic composition having a viscosity of 1,000 to 10,000 cPs, for example.

The present invention provides a composition for preparing urethane foam which is easy to produce a flexible urethane foam.

INDUSTRIAL APPLICABILITY The present invention is advantageous in that it is resistant to corrosion and is used in cosmetic puffs and applicators used in the cosmetics industry.

The present invention can include both excellent properties of ester urethane foam and ether urethane foam. The miscibility of polyols for the preparation of conventional esters and ether foams is so poor that the control of the resulting physical and chemical properties is limited The problem has been mitigated.

The soft urethane foam of the present invention is excellent in oil adsorption ability and can be utilized as a light oil absorbent in case of marine oil leakage.

The present invention provides an impregnation material for impregnating a cosmetic composition, which is advantageous for impregnating a lipophilic cosmetic composition.

The present invention provides a method for producing an impregnated material for impregnating a cosmetic composition, which can control the polarity of the impregnated material for impregnating a hydrophilic cosmetic composition.

INDUSTRIAL APPLICABILITY The present invention can solve the swelling phenomenon of the impregnation material which may occur when the cosmetic composition is impregnated.

INDUSTRIAL APPLICABILITY The present invention improves the durability of the impregnation material and enables the impregnation material to be used without deformation or corrosion.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a reaction formula showing an example of crosslinking of a double bond of a polybutadiene segment of a polybutadiene polyol, which is a typical hydrocarbon polyol, with a radical initiator.

FIG. 2 is a reaction formula showing that a double bond of a polybutadiene segment of a polybutadiene polyol, which is a typical hydrocarbon polyol, is grafted with acrylic acid, which is one of acrylic monomers, in the presence of a radical initiator.

Fig. 3 shows the results of confirming the corrosiveness of the soft urethane foam (M3) of the present invention when the cosmetic composition is impregnated (left) and when the ester type urethane foam is impregnated with the cosmetic composition (right).

Hereinafter, the present invention will be described in more detail with reference to the following examples. However, the embodiments according to the present invention can be modified into various other forms, and the scope of the present invention should not be construed as being limited to the embodiments described below. The embodiments of the present invention are provided by way of example to facilitate a specific understanding of the present invention.

[Production of flexible polyurethane foam]

Example 1. Modification of polyol

Modification of the hydrocarbon polyol can be performed by grafting a vinyl monomer or an acrylic monomer before the foaming process, or by allowing a crosslinking or grafting reaction to proceed during the foaming process.

(1) a method of grafting a vinyl monomer or an acrylic monomer before a foaming process

The polybutadiene polyol was modified by adding methacrylic acid to a polybutadiene polyol having a number average molecular weight of 2,800 g / mole using benzoyl peroxide as an addition reaction initiator. The initiator content was 0.2% based on the total weight of the polyol, the amount of methacrylic acid added was 2%, and the reaction was carried out at a temperature of 80 캜 for 6 hours.

(2) a method of proceeding a crosslinking or grafting reaction during the foaming process

During the polyurethane foam foaming reaction using t-butyl perbenzoate as an addition reaction initiator, methacrylic acid added to a polybutadiene polyol having a number average molecular weight of 2,800 g / mole was added to modify the polybutadiene polyol polyurethane foam. The initiator content was 0.2% and the methacrylic acid content was 2% based on the total weight of the polyol.

Example 2 Process of foaming polyurethane foam using polybutadiene-based hydrocarbon polyol and castor oil

Molecular weight of 2,800 g / mole, functional group of 2.5 Polybutadiene-based polyol (cis-1,4-polybutadiene polyol / trans-1,4-polybutadiene polyol / 1,2-polybutadiene polyol at a ratio of 0.2 / 0.6 / 0.2 weight ratio) and a soft poly The production of the urethane foam can proceed as follows. First, the polyol and the castor oil are mixed at a proper ratio according to the content shown in Table 1 below at room temperature, and then stirred to make them sufficiently uniform. During the stirring of these mixtures, the entrapped bubbles are removed and vacuum degassing and drying are performed to remove the moisture that affects the polyurethane reaction. The polyol mixture thus obtained is added with a catalyst, a foaming agent and a foaming agent at a blending ratio as shown in the following table, and stirred at a high speed for about 10 seconds. Then, the obtained isocyanate compound (Toluene Diisocyanate (TDI T-80 / T-65 / T-100) was added and stirred at high speed for 10 seconds and then injected into the mold. And the gelation time and the gelation time (GT) were confirmed by gelation. Then, the foamed foam was subjected to a post-reaction at room temperature for 24 hours. The foam may be cut and then applied to the application. If necessary, the foam may be subjected to a separate process in order to make the foam into a pattern.

Table 1 below illustrates the mixing ratio and the characteristics of the foam. The content is expressed as% by weight.

* The equivalence ratio of water with isocyanate and hydroxyl group to polyol is called NCO index

A soft urethane foam was prepared in the same manner as described above. However, while mixing the polyol and castor oil, t-butyl perbenzoate peroxide initiator and acrylic acid acrylic monomer were added and mixed in the amounts shown in Table 2 below, followed by stirring to make them sufficiently homogeneous. Through the modification process shown in Table 2, a polyol-butadiene polyol / castor oil / hydrogenated castor oil (70/25/5) mixture of the composition for urethane foam was obtained.

[ Cosmetics  Composition Preparation]

A foundation having the composition of Table 3 below was prepared as follows:

The oil component and the thickening agent were put in an oil bath, and the mixture was heated at 80 DEG C to make it uniform, and then the pigment was added and dispersed. The water component was added to the water tank, and the raw material was completely dissolved by heating at 80 ° C, and then added to the oil bath in which the pigment was dispersed and emulsified with a homomixer to prepare a low-viscosity ultraviolet blocking emulsion. The contents were filled in a 40 ml stability vessel and stored in a 25 ° C. chamber for one day. The viscosity was measured at 25 ° C. using a Brookfield LVII viscometer with a spindle No. 4 at 30 rpm for 1 min. .

Of soft urethane foam Impregnation material ]

Experimental Example  1. Cosmetics Impregnation  Effect

The appearance of the surface of the soft urethane foam produced by the compositions of Tables 1 and 2 was not largely different from the appearance of a sponge generally used as a result of visual observation and it was confirmed to be good for use as a cosmetic impregnated material.

Hereinafter, it is confirmed through various experiments whether the cosmetic composition is suitable for impregnation after impregnation.

▶ Evaluation of stability of cosmetic composition:

After the cosmetic compositions 1 and 2 having controlled viscosity of the inorganic thickening agent were impregnated with the sponge, the separation of the cosmetic composition in the sponge was observed. (3 weeks observation after inserting 50 degree thermostat)

For reference, when the cosmetic composition was not impregnated in a sponge, oil separation occurred in both Samples 1 and 2 during the condition.

When the soft urethane foam of the present invention is used as the impregnating material as described above, the ether type urethane foam is separated from the cosmetic composition in relation to the stability of the cosmetic material. However, when the soft urethane foam of the present invention is used as the impregnation material, It was confirmed that the problem of separation of the composition did not occur and the stability was excellent.

▶ Evaluation of swelling phenomenon:

Cosmetic compositions 1 and 2 were impregnated with a soft urethane foam for 3 weeks, and then it was confirmed whether swelling of the foam was caused.

As can be seen from the table below, the larger the sample code number, the higher the degree of crosslinking and the greater the degree of swelling in the sample with increased crosslinking.

▶ Decay or Corrosion (I Moisture) Evaluation:

Each of the following sponges was impregnated with the cosmetic composition sample 2, and after storage for 3 weeks in a thermostat set at 50 degrees, the deformation of the appearance was observed, and the results are shown in Table 6 below.

In the case of ester type urethane foam, visually, it was good, but when pressed by hand, the sponge was broken in common, while ether type urethane foam and M2 ~ M5 were found to be no abnormality. In particular, when the content of castor oil is less than 50% by weight based on the total weight of the polyol for the production of flexible urethane foam, it is confirmed that the urethane foam can be produced stably because the butadiene polyol is highly compatible with the vegetable oil. Particularly, in the case of the urethane foam produced according to the embodiment of the present invention, the hydrolysis resistance is excellent, so that the sponge does not break or sink over time.

It was confirmed that the swelling phenomenon was improved in comparison with the ether type urethane foam, which is known to have excellent corrosion resistance.

[Puff of soft urethane foam]

The soft urethane foam prepared according to Tables 1 and 2 was used to make a cosmetic applicator. In the process of applying the cosmetic composition to the skin by applying the cosmetic composition, the foam which is applied smoothly has a problem of being highly corrosive, and the case of the foam with improved corrosion has a somewhat rough feeling. However, it has been confirmed that the applicator (puff) made of the soft urethane foam of the present invention is highly corrosive and can provide a soft feeling.

Particularly, the puff of the present invention did not cause deformation of the puff even when used after washing, and showed almost no crumbling phenomenon.

[Cosmetic Packing Material Using Soft Urethane Foam]

A packing material for packing cosmetic composition was prepared using the soft urethane foam having the composition shown in Tables 1 and 2 above. The soft urethane foam of the present invention is excellent in elasticity and strong in corrosiveness, and thus is suitable for use in packing and packing of cosmetic composition. In addition, as a member for increasing the adhesion with the lid to the container inlet of mascara or the like, it was confirmed that the product was excellent in elasticity and excellent in shape retention ability.

Claims (24)

1. A composition for a flexible urethane foam for the production of a flexible urethane foam comprising a polyol,

   Wherein the polyol is any one selected from a hydrocarbon polyol, a vegetable oil, and a dimer acid derived from a vegetable oil, or a mixture of any one selected from a hydrocarbon polyol and a vegetable oil and a dimer acid derived from a vegetable oil.
2. The composition of claim 1, wherein the hydrocarbon polyol has 2 to 10 hydroxy functional groups and a number average molecular weight of 100 to 100,000 g / mole.
3. The composition according to claim 2, wherein the hydrocarbon polyol has a number of hydroxyl functional groups of 2 to 3 and a number average molecular weight of 300 to 50,000 g / mole.
4. The method of claim 1, wherein the polyol

   Carbon and carbon, and wherein a part or all of the double bonds are modified through an addition reaction.
5. The method of claim 1, wherein the polyol

   A hydrocarbon polyol, and a vegetable oil.
6. 6. The composition according to claim 5, wherein the polyol has a vegetable oil content of less than 50% by weight based on the total weight of the polyol.
7. The method according to claim 4, wherein the addition reaction is carried out by cross-linking the polymer with an addition reaction initiator,

   A vinyl monomer, an acrylic monomer, and an acrylic ester monomer.
8. 5. The composition of claim 4, wherein the modification comprises adding an addition reaction initiator to introduce cross-linking.
9. The process according to claim 7, wherein the addition reaction initiator is selected from the group consisting of benzoyl peroxide, t-butyl peroxybenzoate, t-amyl peroxy-2-ethylhexanoate, t-butyl peroxypivalate, Di-n-propyl peroxydicarbonate, di-sec-butyl peroxydicarbonate, 3-hydroxy-1,1-dimethylbutyl peroxide, 3-hydroxy-1,1-dimethylbutylperoxyneoheptanoate, t-amylperoxy-neodecanoate, 2,5-dimethyl-2,5-di- ( Diethylhexanoyl peroxide, 2-ethylhexanoylperoxy) hexane, diisononanoyl peroxide, dydodecanoyl peroxide, dioctanoyl peroxide, t-butyl perneodecanoate, t-butyl perbenzoate, Methyl-3-hydroxybutylperoxy-2-ethylhexanoate, dibenzoyl peroxide, 1,1,3,3-tetramethylbutyl peroxypivalate 2-ethylhexanoate, azobis (isobutyro-nitrile), 2, 3-tetramethylbutylperoxy-2-ethylhexanoate, di- (3,5,5-trimethylhexanoyl) , 2'-azobis- (2-methoxybutyronitrile), methyltriphenylphosphonium bromide, ethyltriphenylphosphonium bromide, phenyltriphenylphosphonium bromide, H ₂ SO ₄ , HClO ₄ , HCl , BF ₃ , _{BCl l3, BF 3: O (} C 2 H 5) 2, TiCl 4, AlCl 3, AlBr 3, SnCl and composition, characterized in that at least one selected from the group consisting of _4.
10. The composition according to claim 4, wherein the modification comprises adding an addition reaction initiator and adding at least one selected from the group consisting of a vinyl monomer, an acrylic monomer, and an acrylic ester monomer.
11. 11. The composition of claim 10, wherein the vinyl monomer is a carboxyl group-containing vinyl monomer selected from the group consisting of acrylic acid, methacrylic acid, carboxyethyl acrylate, carboxypentyl acrylate, itaconic acid, maleic acid, fumaric acid and crotonic acid; An anhydride monomer selected from the group consisting of maleic anhydride, and itaconic anhydride; Acrylate such as hydroxyethyl acrylate, hydroxyethyl methacrylate, hydroxypropyl acrylate, hydroxypropyl methacrylate, hydroxybutyl acrylate, hydroxybutyl methacrylate, hydroxyhexyl acrylate, and hydroxyhexyl methacrylate A hydroxyl group-containing vinyl monomer selected from the group consisting of: N-substituted amide-based vinyl monomers selected from the group consisting of N, N-dimethyl acrylamide, and N, N-dimethyl methacrylamide; Acrylic acid alkoxyalkyl vinyl monomers selected from the group consisting of methoxyethyl acrylate, methoxyethyl methacrylate, ethoxyethyl acrylate, and ethoxyethyl methacrylate; Vinyl pyrrolidone, vinyl pyrrolidone, vinyl pyridine, vinylpiperidone, vinylpyrimidine, vinylpiperazine, vinylpyrazine, vinylpyrrole, vinylimidazole, vinyloxazole, vinyl Vinyl monomers selected from the group consisting of acrylonitrile, methacrylonitrile, methacrylonitrile, methacrylonitrile, methacrylonitrile, methacrylonitrile, methacrylonitrile, Acrylonitrile, acrylonitrile, and methacrylonitrile. ≪ RTI ID = 0.0 > 18. < / RTI >
12. The composition according to claim 10, wherein the acrylic monomer is at least one selected from the group consisting of glycidyl acrylate, and glycidyl methacrylate.
13. The acrylic ester monomer according to claim 10, wherein the acrylic ester monomer is at least one selected from the group consisting of acrylic acid polyethylene glycol, methacrylic acid polyethylene glycol, acrylic acid polypropylene glycol, methacrylic acid polypropylene glycol, methacrylic acid methoxyethylene glycol, methacrylic acid methoxypolyethylene glycol, Polypropylene glycol, and methoxypolypropylene glycol methacrylate. ≪ RTI ID = 0.0 > 21. < / RTI >
14. The composition according to claim 1, wherein the composition for preparing the urethane foam for impregnating the cosmetic composition further comprises an isocyanate compound, a foaming agent, a foaming agent, and a catalyst.
15. 15. The method of claim 14, wherein the isocyanate compound is selected from the group consisting of tolylene diisocyanate (TDI), diphenylmethane diisocyanate (MDI), naphthalene diisocyanate (NDI), xylylene diisocyanate (XDI), isophorone diisocyanate Methylene diisocyanate (HMDI), and modified products thereof.
16. The method according to claim 1, wherein the hydrocarbon polyol is selected from the group consisting of cis-1,4-polybutadiene polyol, trans-1,4-polybutadiene polyol, 1,2-polybutadiene polyol, Butadiene polyol.
17. The composition according to claim 1, wherein the vegetable oil is at least one selected from the group consisting of castor oil, soybean oil, sunflower oil, safflower oil, olive oil, and vegetable oil.
18. The composition according to claim 1, wherein the vegetable oil-derived dimeric acid is a compound represented by the following formula (1).

    [Chemical Formula 1]

    

    (Wherein R ₁ and R ₂ each represent a C 4 to C 8 straight chain alkylene group, and R 3 and R 4 represent a straight chain alkyl group of C 4 to C 8.)
19. 18. A flexible polyurethane foam produced by foaming the composition of any one of claims 1 to 18.
20. The flexible urethane foam according to claim 19, wherein the soft urethane foam is used as a impregnation material for impregnation of a liquid composition, a cosmetic applicator, or a packing material.
21. The flexible urethane foam according to claim 20, wherein the liquid composition comprises a cosmetic composition.
22. A flexible polyurethane foam of claim 19; And

    A cosmetic composition comprising the cosmetic composition impregnated in the flexible polyurethane foam, wherein the cosmetic composition is impregnated in a flexible polyurethane foam.
23. 23. The cosmetic composition according to claim 22, wherein the cosmetic composition is a cosmetic composition having a viscosity of 1,000 to 10,000 cPs on a flexible polyurethane foam obtained by foaming a modified hydrocarbon polyol by forming a double bond of a hydrocarbon polyol by a reaction initiator Is impregnated.
24. The cosmetic product according to claim 22, wherein the cosmetic comprises a flexible polyurethane foam obtained by foaming a hydrocarbon polyol modified by adding at least one monomer selected from a vinyl monomer and an acrylic monomer to a double bond of a hydrocarbon polyol to have a viscosity of 1,000 to 10,000 cPs A cosmetic composition, characterized in that it is impregnated with a cosmetic composition.

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