JP2001002543A - Denture care composition - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a denture care composition making it possible to retain silicone oil which has an effect of preventing dirt from adhering to the denture and such as easily cleaning effect as to easily remove the dirt by washing with water, even when the dirt adheres to the denture, on the denture base for a long period, by adding the silicon oil, polybutene, etc. SOLUTION: This denture care composition comprises (A) silicone oil preferably having a viscosity of 100,000-1,000,000 cSt at 25 deg.C (for example, dimethylpolysiloxane) and (B) one or more kinds of compounds selected from (i) polybutene, (ii) polyisobutylene and (iii) a wax compound, such as beeswax. The composition preferably contains the component A, the component (i) or (ii), and the component (iii) in amounts of 0.1-30 wt.%, 1-25 wt.%, and 1-25 wt.%, respectively, and more preferably in amounts of 0.5-20 wt.%, 2-23 wt.%, and 2-23 wt.%, respectively.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a denture care composition which is hardly stained on a denture and can easily remove the stain by washing with water even if the stain is attached.

[0002]

2. Description of the Related Art Denture stains include food residues, denture plaque, stains (colored deposits such as tea astringent stains), tartar and the like, and cannot be removed only by washing with water. Of these, food residues and denture plaque require brushing with a denture brush, and stain cannot be removed without using denture dentifrice or denture cleanser. In addition, there is no removal of tartar other than having the dentist perform scaling (mechanical removal).

[0003] However, in denture dentifrices, the structure of the denture is complicated, there are places where the brush cannot reach, and dirt or bacteria cannot be completely removed. Moreover, the denture may be damaged by the abrasive. Further, there is a problem that even a denture cleaning agent cannot completely remove all dirt, and there is a possibility of discoloring a metal such as a clasp of a partial denture.

[0004] From such a point, lubricating agents for dentures are also commercially available by forming an oil film on the surface of dentures with squalane to prevent adhesion of dirt to dentures and to easily remove dirt. However, there is a disadvantage that the film formed on the surface of the denture is easily erased and the effect is inferior in persistence.

On the other hand, the present applicant has previously filed Japanese Patent Application No.
366493, Japanese Patent Application No. 10-210474, Japanese Patent Application No. 10-195064, and Japanese Patent Application No. 10-195067, in which a denture care composition containing a silicone component is directly applied to the surface of a denture or spray-coated. Thus, it was proposed that the denture stains be prevented from adhering, and that the stains could be easily removed by washing with water. However, these also gradually disappear due to saliva in the oral cavity, and therefore, it has been desired to further enhance the sustainability of the effect.

SUMMARY OF THE INVENTION The present invention meets the above-mentioned demand and provides a silicone oil having an effect of preventing dirt from adhering to a denture and an effect of easily removing dirt by washing with water even if dirt adheres. An object of the present invention is to provide a denture care composition that can stay on a floor for a long time.

[0007]

Means for Solving the Problems and Embodiments of the Invention The present inventors have conducted intensive studies in order to achieve the above object, and as a result, have found that silicone oil and polybutene or polyisobutylene or waxes are used in combination. It has been found that the retention property can be improved while maintaining the effect of preventing contamination and the effect of easy cleaning. This is because polybutene, polyisobutylene, and wax firmly adhere silicone oil to the denture base, the silicone oil reduces the surface tension of the denture base, reduces hydrophilicity and lipophilicity, and exhibits an effect of preventing the adhesion of dirt. In addition, since the lubricity of the surface is improved, an easy-cleaning effect is exhibited, and the denture care composition that provides an effect of preventing stains is firmly coated on the denture base.

Hereinafter, the present invention will be described in more detail. The denture care composition of the present invention comprises a silicone oil and one or two selected from polybutene, polyisobutylene and waxes.
And more than one species.

The silicone oil contained in the denture care composition has a viscosity at 25 ° C. of 100 to 5,000,000 cSt,
More preferably, the viscosity is from 100 to 1,000,000 cSt, and the viscosity represented by the following general formula (1) is from 100 to 5,000,000 cSt.
(25 ° C.) one or two of dimethylpolysiloxane
The viscosity represented by the following general formulas (2) to (5) is 1 or more.
One or more of methylphenylpolysiloxane having a viscosity of 0 to 10,000 cSt (25 ° C.) and one of fluorine-modified silicone having a viscosity represented by the following general formula (6) of 100 to 10,000 cSt (25 ° C.) Alternatively, two or more types are preferable, but not limited to these.

[0010]

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As the waxes, beeswax, wood wax, candelilla wax, microcrystalline wax, carnauba wax and the like can be used.

Here, the amount of the silicone oil is from 0.1 to
It is preferably 30% (% by weight, the same applies hereinafter), particularly preferably 0.5 to 20%. If the compounding amount is less than 0.1%, the effect of preventing the adhesion of dirt to the denture or the effect of easy cleaning is insufficient, and if the compounding amount exceeds 30%, no improvement in the effect is recognized.

The blending amount of polybutene or polyisobutylene is 1 to 25%, preferably 2 to 23%. If the compounding amount is less than 1%, the effect of fixing the silicone oil to the denture base is insufficient, and if the compounding amount exceeds 25%, no improvement in the effect is observed, the agent becomes hard and the usability deteriorates. May be invited.

The amount of the wax compounded is 1 to 25%,
Preferably it is 2 to 23%. If the amount is less than 1%,
The effect of fixing the silicone oil to the denture base is insufficient, and even if the content exceeds 25%, no improvement in the effect is observed, the agent becomes hard, stickiness increases, and the usability may be deteriorated.

The denture care composition of the present invention may contain, if necessary, a surfactant, a flavor, a sweetener, a preservative, a pigment, a bactericide,
A viscosity modifier, a solvent, water and the like can be blended.

As the fragrance, peppermint oil, spearmint oil, anise oil, eucalyptus oil, winter green oil, cassia oil, clove oil, thyme oil, sage oil, lemon oil, orange oil, peppermint oil, cardamom oil, coriander oil, Natural flavors and menthol such as mandarin oil, lime oil, lavender oil, rosemary oil, laurel oil, camomill oil, caraway oil, marjoram oil, bay oil, lemongrass oil, origanum oil, pine needle oil,
Carvone, anethole, cineole, methyl salicylate, cinamic aldehyde, eugenol, thymol, linalool, linalool acetate, limonene, menthone, menthyl acetate, pinene, octylaldehyde, citral, pulegone, carbyl acetate,
Single flavors such as anisaldehyde, further, ethyl acetate, ethyl butyrate, allyl cyclohexane propionate, methyl anthranilate, ethyl methyl phenyl glycidate, vanillin, undecalactone, hexanal, ethyl alcohol, propyl alcohol, butanol, isoamyl Strawberry flavor, apple flavor, banana flavor, pineapple flavor, grape flavor, mango flavor, mango flavor, which also contains a single flavor such as alcohol and / or a natural flavor.
Tropical fruit flavors, butter flavors, milk flavors, fruit mix flavors and the like can be used.

Examples of the viscosity modifier include polyhydric alcohols such as glycerin, sorbitol, propylene glycol and polyethylene glycol, and sodium carboxymethylcellulose, carrageenan, sodium hydroxyethylcellulose, sodium alginate, propylene glycol alginate, xanthan gum, polyacrylic acid and polyacrylic acid. Sodium acrylate, cod gum, guar gum, locust bean gum, hydroxyethyl cellulose, hydroxypropyl cellulose, gellan gum,
Gelatin, curdlan, gum arabic, agar, pectin, polyvinyl alcohol, polyvinylpyrrolidone, pullulan and the like.

The amounts of these components can be set as usual within a range not to impair the effects of the present invention.

[0019]

EXAMPLES The present invention will be described below in detail with reference to examples and comparative examples, but the present invention is not limited to the following examples.

Examples 1 to 4, Comparative Examples 1 and 2 Denture care compositions having the compositions shown in Table 1 were prepared.

[0021]

[Table 1]

Next, an acrylic plate (20 mm × 20 mm)
Was sand-blasted with a sandblast, and then the denture care composition (Examples 1 to 4) was applied to the plate and dried to obtain a sample. Further, Comparative Example 1 was obtained by applying only the silicone oil, and Comparative Example 2 was an untreated acrylic plate.

The above sample was added to saliva in a thermostat at 37 ° C. for 30 minutes.
After immersion for one minute, the stain adhesion inhibiting power and the easy cleaning property were evaluated by the following methods. Table 2 shows the results. Measuring Method of Soil Adhesion Inhibiting Force A sample was sequentially immersed in an albumin solution, a tannin solution (extracted hot water of Japanese tea, coffee and black tea), and a ferric chloride solution to adhere pseudo stains. The color difference before and after the adhesion of the pseudo soil was measured. The larger the color difference, the smaller the effect of suppressing stain adhesion. Measuring method for easy-washing property Samples were immersed in albumin solution, tannin solution (extracted hot water of Japanese tea, coffee, and black tea) and ferric chloride solution in order to attach artificial stains, and then immersed in running water for 10 seconds. Then, dirt was removed. The color difference before the attachment of the pseudo soil and after the removal of the soil were measured. The smaller the color difference, the easier it is to wash (immersion washing)
Is good.

[0024]

[Table 2]

From the results in Table 2, it can be seen that by using silicone oil in combination with polybutene, polyisobutylene and waxes, a good effect of preventing adhesion of dirt even after treatment with saliva,
It is recognized that an easy cleaning effect can be provided.

Example 5 Methylphenyl polysiloxane 5% by weight (KF-50-10000 manufactured by Shin-Etsu Chemical Co., Ltd.) Polybutene 20 Sorbitan monostearate 15 Liquid isoparaffin 40 Water 20 Total 100% by weight

Example 6 Dimethylpolysiloxane 23% by weight (Shin-Etsu Chemical Co., Ltd .: KF-96A-200) Polyisobutylene 15 Polyoxyethylene hydrogenated castor oil 5 Isopropyl myristate 20 Water 37 Total 100% by weight

[Example 7] Fluorine-modified silicone 15% by weight (Shin-Etsu Chemical: FL-100-1000) Microcrystalline wax 20 Glyceryl monoisostearate 10 Liquid isoparaffin 30 Water 25 Total 100% by weight

[0029]

Industrial Applicability The denture care composition of the present invention has good retention of silicone oil, and is excellent in the effect of preventing stain adhesion and the effect of easy cleaning.

Continued on the front page F-term (reference) 4C083 AA082 AA122 AC012 AC432 AC442 AD021 AD022 AD151 AD152 AD161 CC42 DD22 DD23 EE35 EE37

Claims (1)

[Claims] 1. A denture care composition comprising a silicone oil and one or more selected from polybutene, polyisobutylene and waxes.