JP2012006848A - Coating agent composition for tooth manicure - Google Patents

Abstract

PROBLEM TO BE SOLVED: To increase effects on cosmetics in a coating agent composition to be used for a tooth manicure applied to each tooth.SOLUTION: The coating agent composition for a tooth manicure comprises: shellac; ester gum; a thickening-coating agent; a surfactant; and ethanol as the main components. As the ester gum, pentaerythritol or glycerol ester of resin acid is used. As the thickening-coating agent, an acrylic acid-acrylamide-ethyl acrylate copolymer is used. As the surfactant, a water-insoluble surfactant is used, and is selected from polyhydric alcohol having three or more hydroxy groups and the dehydrated condensates thereof and the oil-soluble esters of resin acid containing ≥8C fatty acid and/or abietic acid, neoabietic acid or the like. Further, one or more kinds selected from pigment, a medicinal components having cariostatic action and bactericide-antimicrobial agents are added as auxiliary components. The pigment is selected from titanated mica, titanium oxide, hydroxyapatite and silica-coated titanium oxide.

Description

  The present invention relates to a coating composition for use in dental nail polish.

Tooth beauty coating agents are known for enhancing cosmetic effects such as gloss, brightness, and whiteness on teeth.
Dental nail polish is also commercially available.

  As an example, a tooth coating composition (Patent Document 1) mainly composed of a shellac alcohol solution, a substrate improver such as a fish scale paste, a pigment such as titanium oxide, and an anti-turbidity agent.

Further, N-methacryloylethyl N, N-dimethylammonium / α-N-methylcarboxybetaine / butyl methacrylate copolymer, ethanol, at least one resin selected from shellac and vinyl acetate resins, and extender pigments A tooth coating solution (Patent Document 2) containing at least one pigment selected from natural pearl and titanium oxide has also been proposed.
The N-methacryloylethyl N, N-dimethylammonium / α-N-methylcarboxybetaine / butyl methacrylate copolymer is a product name of “Yukaformer AM-75” from Mitsubishi Chemical Co., Ltd. Grade numbers “201” and “204” of 42% absolute ethanol solution [viscosity 500 to 2000 cps (30 ° C.)] and grade number “202” of 28 to 32% absolute ethanol solution [viscosity 50 to 200 cps (30 ° C.)] , “R205”, “R205S”, and “206” are commercially available.

Also, it contains an alcohol having 4 or less carbon atoms and N-methacryloyloxyethyl N, N.dimethylammonium / α-N-methylcarboxybetaine / butyl methacrylate copolymer, and contains a deodorant, bactericidal agent, or fragrance. A dental coating solution characterized by the above (Patent Document 3) has also been proposed.
It is described that this tooth coating solution can further contain one or both of shellac and vinyl acetate resin.

Further, a tooth coating solution (Patent Document 4) containing at least one of shellac and vinyl acetate resin and having a main solvent of ethanol has been proposed.
This tooth coating solution is further added with N-methacryloyloxyethyl N, N-dimethylammonium-α-N-methylcarboxybetaine / butyl methacrylate copolymer which is a dispersant and imparts water resistance to the resin. It is described that it can.

In addition, shellac and rosin are the main components, and pigments, pigment dispersants, dyes, medicinal components having anti-cariogenic activity, antibacterial agents, thickeners, bright reflectors, bleaching agents, fragrances, etc. are added as subcomponents. Therefore, a tooth coating composition (Patent Document 5) for cosmetic and dental caries prevention that is excellent in quick-drying, sustainability, color tone, gloss, and ease of removal has also been proposed.
This tooth coating composition is further described as being able to use N-methacrylethyl N, N-dimethylammonium-α-N-methylcarboxybetaine / alkyl methacrylate copolymer as a pigment dispersant. ing.

In the tooth coating composition (Patent Document 5), the preferred blending amount of shellac and rosin is 5 to 25 wt%, and if it is less than 10 wt%, the coating strength is lowered.
In the tooth coating composition, the copolymer described as a pigment dispersant is a hydrophilic polymer and has an effect of contributing to pigment dispersibility. In fact, in the commercial product, the pearl luster of titanium mica cannot fully demonstrate its performance, and it is difficult to recognize that it enhances the cosmetic effect.

On the other hand, the current commercial product is whitened under the condition of being exposed to water for a long time, and the aesthetic appearance is remarkably impaired. However, the coating film is tough and cannot be easily removed even if it is brushed with a toothpaste.
This toughness is a problem in removing the coating film.
In addition, the coating film of the tooth nail polish, after being applied to the teeth and dried, maintains a strength that does not peel off in a moist environment in the oral cavity for 3 to 5 hours unless food is taken. It is desirable to keep the luster without.
And after that, it is desired to clean by toothpaste.

Separately, an acrylic acid / acrylamide / ethyl acrylate copolymer (Patent Document 6) is cited as one of the film-forming substances for the hairdressing composition.
The acrylic acid / acrylamide / ethyl acrylate copolymer is commercially available from BASF Japan under the trade name “Ultrahold Strong”.

Japanese Patent Application Laid-Open No. 07-017822 Japanese Patent Laid-Open No. 09-1000021 JP 09-202718 A Japanese Patent Laid-Open No. 11-071219 International Publication Number WO2005 / 020937A1 JP 2005-325041 A

The problems to be solved are as follows.
(1) When applied to teeth, the coating solution diffuses and protrudes, and the gums squeeze and feel pain.
(2) When applied twice, stickiness and dryness are poor.
(3) Since the dispersibility of the gloss component to be blended is insufficient, a thick feeling of glare is felt, which is insufficient as a product appealing for natural whiteness and brightness.
(4) The adhesion of the coating film is too strong and remains even after brushing and looks dirty.

  The present invention emphasizes cosmetic effects as a tooth coating solution, and in order to solve the disadvantages of the conventional tooth coating solutions as described above, shellac, ester gum, thickening / coating agent and solvents thereof The main characteristic is that it is a coating composition for dental nail polish that contains a main component of

When applied to teeth, the coating composition for dental nail polish according to the present invention has a smooth coating film and does not feel uncomfortable even when touched by the tongue, and can achieve a cosmetic purpose.
In addition, there is an advantage that the coating film is stable for a long time without dropping, and it drops cleanly after brushing.

The present invention is a coating composition for dental nail polish, which is mainly composed of shellac, ester gum, thickener / film agent, and ethanol.
More specifically, the content of shellac is 1.0 to 16.0 wt% in the total composition, preferably 3.0 to 12.0 wt%,
The ester gum content is 0.5 to 5.0 wt%, preferably 1.0 to 3.5 wt% in the total composition,
As the thickening / coating agent, the content of acrylic acid / acrylamide / ethyl acrylate copolymer is 2.0 to 12.0 wt%, preferably 3.5 to 9.0 wt% in the total composition,
A coating composition for dental nail polish, wherein the surfactant content is 0.1 to 3.5 wt%, preferably 1.0 to 3.0 wt%, and ethanol in the total composition. It is.

Examples of the commercially available shellac include dry transparent shellac manufactured by Koyo Chemical Co., Ltd.
The ester gum is a pentaerythritol or glycerin ester of resin acid.
Examples of commercially available products include ester gum HP (rosin acid pentaerythritol ester) and ester gum AA-G (rosin acid glycerin ester) manufactured by Arakawa Chemical Industries.
Examples of the acrylic acid / acrylamide / ethyl acrylate copolymer as the thickening / coating agent include Ultrahold Strong manufactured by BASF Japan.

Furthermore, the surfactant is a lipophilic surfactant having an HLB of 7 or less, and preferably has an oily or pasty appearance. A high-melting lipophilic surfactant has low solubility in an ethanol solvent at room temperature or lower, and often precipitates, so that it does not form a homogeneous solution.
Moreover, it is desirable to have a pigment dispersion performance in an ethanol solution.
Examples of the surfactant satisfying such conditions include a single or mixed esterified product of a polyhydric alcohol having 3 or more hydroxyl groups and a dehydration condensate thereof and a fatty acid, hydroxy acid, resin acid or the like having 8 or more carbon atoms. be able to.
For example, there is a polyglycerin fatty acid ester. Commercially available products include DGMIS (diglyceryl monoisostearate), hexagrin PR-15 (hexaglyceryl polyricinoleate), decagrin 5-OV (decaglyceryl pentaoleate), decagrin 5-HS (penta) manufactured by Nikko Chemicals Co., Ltd. Examples thereof include hydroxystearic acid decaglyceryl) and decagrin 7-OV (decaglyceryl heptaoleate).
Examples of pentaerythritol fatty acid esters include dipentaerythritol fatty acid esters. Examples of commercially available products include Cosmol 168ARV (hexa (hydroxystearic acid / stearic acid / rosinic acid) dipentaerythrityl), Cosmol 168EV ((hydroxystearic acid / isostearic acid) dipentaerythrityl) manufactured by Nisshin Oilio Group, Inc. .
Furthermore, examples of the mixture include Dehumulus E (mixture of distearyl citrate, palm oil fatty acid pentaerythrityl, sorbitan sesquioleate, and beeswax) manufactured by Cognis Japan.
In addition, 1 type, or 2 or more types of said compound can be used for the said surfactant.

One or more selected from the group consisting of pigments, medicinal components having anti-cariogenic activity, antibacterial agents and antibacterial agents can be added as subcomponents to the dental nail polish coating composition.
The pigment may contain 0.5 to 6.0 wt% of one or more selected from mica titanium, titanium oxide, hydroxyapatite, and silica-coated titanium oxide.
Mica titanium is FLAMENCO manufactured by BASF Japan, Titanium oxide is fine particle titanium oxide MT-500B manufactured by Teika Co., Ltd., Hydroxyapatite is Sangi's Apatizer C, and silica-coated titanium oxide is Showa Denko Max. Light F-TS20 etc. are mentioned.
The medicinal ingredients having an anti-cariogenic action are hinokitiol (manufactured by Takasago Inc.), guaiazulene (manufactured by Konan Chemical Co., Ltd.), β-glycyrrhetinic acid (manufactured by Maruzen Pharmaceutical Co., Ltd.), bisabolol (α-bisabolol: manufactured by BASF Japan KK). ), Licorice flavonoids (oil-soluble licorice extract PT: manufactured by Maruzen Pharmaceutical Co., Ltd.), clove extract (clove extract: manufactured by Maruzen Pharmaceutical Co., Ltd.), and the like.
The disinfectant and antibacterial agent are isopropylmethylphenol (hereinafter referred to as IPMP; manufactured by Osaka Chemical Industry Co., Ltd.), cetylpyridinium chloride (CPC: manufactured by Wako Pure Chemical Industries, Ltd.), thymol (produced by Osaka Chemical Industry Co., Ltd.), cetyl. And trimethylammonium saccharin (Pionine B-611-S: manufactured by Takemoto Yushi Co., Ltd.).

Example 1 is a coating composition for dental nail polish comprising the following formulation 1.
Comparative Example 1 is Example 4 described in Patent Document 2.
The compounding quantity of each prescription is wt%. Bring to 100 wt% with ethanol. The same applies hereinafter.
Formulation 1 Formula 1 Comparative Example 1
Shellac 12.0 25.0
Ester gum HP 2.2
Cosmall 168ARV 3.0
Ultra Hold Strong 3.6
Yuka Former AM75R205 0.8
Mica titanium 2.6
Titanium oxide 0.6
Ethanol 100.0 100.0
The shellac is a dry transparent shellac manufactured by Koyo Chemical Co., Ltd.
The ester gum HP is a rosin acid pentaerythritol ester manufactured by Arakawa Chemical Industries, and the Cosmol 168ARV is a hexa (hydroxystearic acid / stearic acid / rosin acid) dipentaerythritol ester manufactured by Nissin Oil.
Furthermore, the ultrahold strong is an acrylic acid / acrylamide / ethyl acrylate copolymer, and the Yucaformer AM75R205 is N-methacryloyloxyethyl N, N-dimethylammonium-α-N-methylcarboxybetaine / butyl methacrylate. It is a copolymer.
The mica titanium is FLAMENCO manufactured by BASF Japan Ltd.,
Titanium oxide is fine particle titanium oxide MT-500B manufactured by Teika Co., Ltd.
Ethanol having a purity of 99 wt% was used. The same applies hereinafter.

[Production method]
The manufacturing method of the said prescription is as follows.
(1) Add shellac, ester gum, and ultrahold strong to an appropriate amount of ethanol and heat to dissolve.
(2) The pigment and the surfactant are mixed in a mortar using a small amount of ethanol.
(3) Add a part of the mixed solution, such as shellac, previously dissolved to the mixture solution of (2) above, and grind it again in a mortar.
(4) The mixture solution of (3) above is added to the previous mixed solution such as shellac and stirred and mixed, and then the remaining ethanol is added to make the total amount 100 parts.
Hereinafter, the manufacturing method is the same.

Example 2 is a coating composition for dental nail polish comprising the following formulation 2.
Comparative Example 2 is Example 6 using the colored liquid 4 described in Patent Document 2.
The amount of each prescription is wt%.
Formulation 2 Formulation 2 Comparative Example 2
Shellac 10.0 15.0
Ester gum HP 2.2
Decagulin 5-OV 1.0
Ultra Hold Strong 8.4
Yuka Former AM75R205 1.0
Mica titanium 3.4
Yellow No. 5 Al Lake 0.01
Titanium oxide 1.0
Ethanol 100.0 100.0
The decagrin 5-OV is pentaoleic acid decaglycerin ester manufactured by Nikko Chemicals.
Yellow No. 5 Al lake is a pigment used in the colored liquid 4 of Patent Document 2.

When Formula 1 of Example 1 and Formula 2 of Example 2 were applied to the front teeth, the coating film was smooth and the tongue did not feel uncomfortable.
In Comparative Example 1 and Comparative Example 2, when the front teeth are applied, the film is not glossy and the surface is rough, and when touched with the tongue, there is a sense of incongruity and it is difficult to say that it plays the role of a coating film for cosmetic purposes.
Further, in application to the front teeth, in Comparative Examples 1 and 2, the liquid did not stay on the application surface but diffused and accumulated between the gums and adjacent teeth, and the application surface could not be controlled.
This is a phenomenon due to the low viscosity of the ethanol solution. If the blending amount of the copolymer in the solution is increased, the viscosity is increased and diffusion can be suppressed and control is possible.
However, since the polymer having a carboxybetaine group used in Comparative Example 1 and Comparative Example 2 is hydrophilic, it has a trade-off problem that the water resistance of the coating film decreases when the blending amount is increased.
On the other hand, the copolymer (ultrahold strong) used in Formulation 1 of Example 1 and Formulation 2 of Example 2 was changed to the copolymer (Yukaformer) used in Comparative Example 1 and Comparative Example 2. Compared with a much lower hydrophilicity, it is possible to add more.

Example 3 is a coating composition for dental nail polish consisting of the following prescription 3 to prescription 5. The amount of each prescription is wt%.
Treatment Formula 3 Formula 4 Formula 5
Shellac 4.8 5.2 5.0
Ester gum HP 2.6 2.2 2.4
Decagulin 5-OV 0.9 0.4
Cosmall 168ARV 0.6 0.8
Decagulin 5-HS 0.4
Ultra Hold Strong 3.3 3.8 4.8
Mica titanium 2.4 2.0 3.4
Titanium oxide 0.6
Hydroxyapatite 0.8
Ethanol 100.0 100.0 100.0
The decagrin 5-HS is decaglyceryl pentahydroxystearate manufactured by Nikko Chemicals.
Further, hydroxyapatite is an appetizer C manufactured by Sangi Corporation.

About the prescription 3 to the prescription 5 of Example 3, the implementation test applied to the front teeth was performed.
It was applied to two males and two females on the upper and lower front teeth, and the progress was examined.
Formulation 3 to Formulation 5 of Example 3 were stable without dropping the coating film even after 5 hours.
However, in the prescription 3 of Example 3, when applied to the lower teeth, the viscosity of the liquid was slightly insufficient, and a tendency to lean to the gums was observed.

Example 4 is a coating composition for dental nail polish consisting of the following prescription 6 to prescription 10. The amount of each prescription is wt%.
Prescription prescription 6 prescription 7 prescription 8 prescription 9 prescription 10
Shellac 5.2 7.0 8.0 5.5 3.8
Ester gum HP 1.8 2.2 2.0
Ester gum AAG 1.2 0.4 2.0
Decagulin 5-HS 1.0
Decagulin 5-OV 1.0
DGMIS 0.6
Decagulin 7-OV 0.8 1.0
Cosmall 168ARV 1.4 0.5
Cosmall 168EV 1.0 0.5
Dehimulus E 0.8
Ultra Hold Strong 4.5 6.0 5.1 7.5 7.8
Mica titanium 1.0 1.0 2.0 3.0
Hydroxyapatite 2.0 2.0 3.0
Hinokitiol 0.01 0.005 0.02
IPMP 0.007 0.005 0.01
Ethanol 100.0 100.0 100.0 100.0 100
The ester gum AAG is rosin acid glycerin ester manufactured by Arakawa Chemical Industries.
In addition, DGMIS is diglyceryl monoisostearate manufactured by Nikko Chemicals Co., Ltd., Cosmol 168EV is (hydroxystearic acid / isostearic acid) dipentaerythrityl manufactured by Nisshin Oilio Group, Ltd., Dehimrus E is Cognis Japan Co., Ltd. It is a mixture of company-made (distearyl citrate, palm oil fatty acid pentaerythrityl, sorbitan sesquioleate, beeswax).
Furthermore, hinokitiol is a medicinal ingredient manufactured by Takasago Fragrance Co., Ltd., and IPMP is a disinfectant / antibacterial agent manufactured by Osaka Kasei Co., Ltd.

The tooth nail polish coating composition of Formulation 6 to Formulation 10 of Example 4 was subjected to an implementation test applied to the front teeth.
[Coating film strength test]
At 10:00 am, the coating agents of Formula 6 and Formula 7 were applied to the upper left and right front teeth of an adult male, and dried for about 1 minute.
Hydroxyapatite was inferior to titanium oxide in terms of whiteness and covering power, but a thin pearly luster film was formed.
I had a tea break at 10:30 am. I took lunch and miso soup at 12:00 and drank tea. There was no hard thing in the lunch box.
After the meal, the mouth was rinsed and the condition of the front teeth was examined.
I had a tea break at 3pm.
When I checked in before 5:30 pm, I found a slightly peeled part under one front tooth on the left front, but the coating film was almost completely maintained even after 7 hours. It was.
[Coating film durability test]
About the coating agent of the prescription 8 and the prescription 9, two adult males and one adult female applied to the front teeth of two upper left and right, respectively, and performed the durability test.
At 9 am, the coating agents of Formula 8 and Formula 9 were applied to the left and right teeth, respectively, and dried.
At the 10:30 am break, each person had tea or coffee. All three had lunch and miso soup for lunch at 12:00.
After the meal, the state of the coating film was examined, but no swelling or peeling of the coating film was observed in all three people.
I had coffee at 3pm. At 5:30, two subjects took sandwich snacks and milk for overtime work.
After that, when the two teeth were examined, the applied front teeth kept a pearly luster.
The pearl of the tooth to which Formula 8 was applied was thinner than Formula 9.
One person who came home had dinner at 8pm and observed the condition of the dental film applied at 8:30 pm. Although there were scratch marks on the left front tooth, the coating film itself was well coated with a pearly luster.
When carefully polished with a toothbrush, the coating film was removed cleanly without an abrasive.
About the coating agent of the prescription 10, it applied to four upper front teeth of one male test subject, and was made to dry.
For the two left front teeth, Formula 10 was stirred and immediately applied with a brush.
For the two right front teeth, Formula 10 was stirred and allowed to stand for 1 minute, after which an upper layer was applied.
The coating applied immediately after stirring had a rough surface and was not smooth.
On the other hand, after standing, the film coated with the upper layer was smooth.
In either case, the left and right front teeth coating films were both strong and retained for 6 hours after eating.
From the results of the above tests, the tooth nail polish coating compositions of Formulation 6 to Formula 10 of Example 4 are all excellent in strength and durability, and when they are brushed with a toothbrush, the coated film should be removed cleanly. It is clear that there is a special effect of being able to.

  The coating composition for dental nail polish of the present invention can be applied not only to natural human teeth but also to dentures and dentures.

Claims (6)

  A coating composition for dental nail polish, which is mainly composed of shellac, ester gum, thickener / film agent, and ethanol. Shellac content is 1.0-16.0 wt%, preferably 3.0-12.0 wt%,
The ester gum content is 0.5 to 5.0 wt%, preferably 1.0 to 3.5 wt%,
As the thickening / coating agent, the content of acrylic acid / acrylamide / ethyl acrylate copolymer is 2.0 to 12.0 wt%, preferably 3.5 to 9.0 wt%,
The surfactant content is 0.1 to 3.5 wt%, preferably 1.0 to 3.0 wt%,
And a coating composition for tooth nail polish, comprising ethanol and ethanol.   3. The dental nail polish coating composition according to claim 1, wherein the ester gum according to claim 1 or 2 is a pentaerythritol or glycerin ester of a resin acid.   The surfactant according to claim 2 is a water-insoluble surfactant, and is a single product of a polyhydric alcohol having 3 or more hydroxyl groups and a dehydration condensate thereof with a fatty acid having 8 or more carbon atoms, a hydroxy acid, or a resin acid. Alternatively, the coating composition for dental nail polish according to claim 1, comprising one or more of mixed esterified products.   5. The tooth according to claim 1, wherein one or more selected from the group consisting of a pigment, a medicinal component having an anti-cariogenic effect, and a bactericide / antibacterial agent is added as a subcomponent. A coating composition for manicure.   The pigment according to claim 5 contains 0.5 to 6.0 wt% of one or more selected from mica titanium, titanium oxide, hydroxyapatite, and silica-coated titanium oxide in the total composition. The dental nail polish coating composition according to any one of claims 1 to 5.