WO2011055707A1 - 歯磨剤組成物 - Google Patents
歯磨剤組成物 Download PDFInfo
- Publication number
- WO2011055707A1 WO2011055707A1 PCT/JP2010/069428 JP2010069428W WO2011055707A1 WO 2011055707 A1 WO2011055707 A1 WO 2011055707A1 JP 2010069428 W JP2010069428 W JP 2010069428W WO 2011055707 A1 WO2011055707 A1 WO 2011055707A1
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- WIPO (PCT)
- Prior art keywords
- dentifrice composition
- component
- oil
- isopropylmethylphenol
- taste
- Prior art date
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Classifications
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61Q—SPECIFIC USE OF COSMETICS OR SIMILAR TOILETRY PREPARATIONS
- A61Q11/00—Preparations for care of the teeth, of the oral cavity or of dentures; Dentifrices, e.g. toothpastes; Mouth rinses
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
- A61K8/00—Cosmetics or similar toiletry preparations
- A61K8/18—Cosmetics or similar toiletry preparations characterised by the composition
- A61K8/30—Cosmetics or similar toiletry preparations characterised by the composition containing organic compounds
- A61K8/33—Cosmetics or similar toiletry preparations characterised by the composition containing organic compounds containing oxygen
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
- A61K8/00—Cosmetics or similar toiletry preparations
- A61K8/18—Cosmetics or similar toiletry preparations characterised by the composition
- A61K8/30—Cosmetics or similar toiletry preparations characterised by the composition containing organic compounds
- A61K8/33—Cosmetics or similar toiletry preparations characterised by the composition containing organic compounds containing oxygen
- A61K8/34—Alcohols
- A61K8/345—Alcohols containing more than one hydroxy group
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
- A61K8/00—Cosmetics or similar toiletry preparations
- A61K8/18—Cosmetics or similar toiletry preparations characterised by the composition
- A61K8/30—Cosmetics or similar toiletry preparations characterised by the composition containing organic compounds
- A61K8/33—Cosmetics or similar toiletry preparations characterised by the composition containing organic compounds containing oxygen
- A61K8/34—Alcohols
- A61K8/347—Phenols
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
- A61K8/00—Cosmetics or similar toiletry preparations
- A61K8/18—Cosmetics or similar toiletry preparations characterised by the composition
- A61K8/72—Cosmetics or similar toiletry preparations characterised by the composition containing organic macromolecular compounds
- A61K8/84—Cosmetics or similar toiletry preparations characterised by the composition containing organic macromolecular compounds obtained by reactions otherwise than those involving only carbon-carbon unsaturated bonds
- A61K8/86—Polyethers
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61P—SPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
- A61P1/00—Drugs for disorders of the alimentary tract or the digestive system
- A61P1/02—Stomatological preparations, e.g. drugs for caries, aphtae, periodontitis
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
- A61K2800/00—Properties of cosmetic compositions or active ingredients thereof or formulation aids used therein and process related aspects
- A61K2800/40—Chemical, physico-chemical or functional or structural properties of particular ingredients
- A61K2800/59—Mixtures
- A61K2800/592—Mixtures of compounds complementing their respective functions
Definitions
- the present invention relates to a dentifrice composition having a high retention in the oral cavity of a preparation, excellent bactericidal ability of oral biofilm, little taste, little stickiness, and excellent usability.
- caries The cause of the two major oral diseases, caries and periodontal disease, is thought to be due to various bacteria in the biofilm in the oral cavity.
- caries is an infection caused by bacteria such as Streptococcus mutans (Streptococcus mutans), and periodontal disease is mainly anaerobic gram-negative bacilli such as Porphyromonas gingivalis.
- oral bacteria such as Fusobacterium nucleatum are involved as a cause of bad breath. Therefore, it is said that it is said that it is useful to keep the number of pathogenic bacteria in the oral biofilm at a low level as an effective means for prevention and improvement of oral diseases.
- Phenol is preferably used (Patent Document 1; JP 2005-179266 A, Patent Document 2; JP 2006-182626 A).
- Isopropylmethylphenol which is said to be suitable for sterilization of pathogenic bacteria inside biofilms, is known to have better penetration into biofilms than other sterilizing components.
- the composition containing isopropylmethylphenol has a disadvantage that the feeling of use is remarkably impaired because it has a peculiar taste, and improvement of this point has been demanded.
- Patent Document 3 Japanese Patent Laid-Open No. 2007-161613
- Patent Document 4 Japanese Patent Laid-Open No. 2008-143825
- Patent Document 5 As a technique for improving the retention of an isopropylmethylphenol-containing preparation in the oral cavity, a method of blending specific polyoxyethylene (POE) hydrogenated castor oil and thickening silica has been proposed (Patent Document 5; -96747).
- PEO polyoxyethylene
- Patent Document 6 JP-A-2006-182705, Patent Document 7; JP 2007-182705 A.
- Patent Document 6 JP-A-2006-182705, Patent Document 7; JP 2007-182705 A.
- sorbit, glycerin and polyethylene glycol are generally blended as a wetting agent in the dentifrice composition for the purpose of preventing drying and maintaining the appearance (Patent Document 8; Patent No. 3959636). ).
- these wetting agents have a problem that, due to their high viscosity, depending on the blending amount, the spinnability of the preparation is increased, and stickiness occurs, resulting in poor usability.
- isopropylmethylphenol is useful as a bactericidal component of a dentifrice composition because of its excellent permeability to oral biofilms.
- isopropylmethylphenol is blended into the dentifrice composition without impairing the feeling of use. It has been difficult for the prior art to retain the composition in the oral cavity satisfactorily and to exert a high biofilm sterilizing effect, and it has been difficult to put it into practical use. Accordingly, it is desired to develop a dentifrice composition that is excellent in retention of the preparation in the oral cavity, exhibits a high bactericidal effect on the oral biofilm, and has little taste and stickiness and excellent usability.
- the present invention has been made in view of the above circumstances, a dentifrice composition having high retention in the oral cavity of the preparation, excellent bactericidal ability of oral biofilm, little disgusting taste, little stickiness, and excellent usability
- the purpose is to provide.
- a dentifrice composition containing a perfume ingredient, (C) sorbit, (D) glycerin, and (E) polyethylene glycol having an average molecular weight of 280 to 9,300 is unexpectedly retained in the oral cavity of the preparation. It has been found that it has high properties, excellent sterilizing power inside the biofilm, little unpleasant taste, little stickiness, and excellent usability, and has led to the present invention.
- the bactericidal action possessed by isopropylmethylphenol is effectively exhibited inside the biofilm, and further, by using sorbitol and glycerin together, In addition to the increased retention in the oral cavity, the bactericidal action is effective, the stickiness of the formulation can be suppressed, and by combining a specific perfume ingredient with isopropylmethylphenol, Occurrence of unpleasant taste can be suppressed and a good flavor can be obtained.
- the dentifrice composition containing isopropylmethylphenol is blended with the specific fragrance of the component (B), and the components (C) to (E) are used in combination.
- the various problems are solved, and the taste and stickiness of the preparation derived from isopropylmethylphenol are suppressed, the preparation can be satisfactorily retained in the oral cavity without impairing the feeling of use, and a high biofilm bactericidal effect can be exhibited. It is possible to obtain a dentifrice composition effective for prevention or improvement of oral diseases such as periodontal disease having both an excellent bactericidal effect and a feeling of use.
- the fragrance component of the component (B) has a characteristic fragrance and may be used in a slight amount in a blended flavor such as cheese. However, since it is an unpleasant fragrance itself, the dentifrice composition Use as a perfume was limited. The present inventors have surprisingly found that when the specific fragrance of the above component (B) is used in combination with isopropylmethylphenol in a dentifrice composition, the odor derived from isopropylmethylphenol can be sufficiently suppressed. .
- the (D) component / (C) component is 0.6 to 1.8 in terms of mass ratio, so that it is possible to further improve the oral retentivity and non-stickiness of the preparation.
- the present invention provides the following dentifrice composition.
- Claim 1 (A) isopropylmethylphenol, (B) at least one fragrance component selected from 3-octanol, 3-octyl acetate, 3-octanone, and Fencon; (C) Sorbit, (D) glycerin, (E) A dentifrice composition comprising polyethylene glycol having an average molecular weight of 280 to 9,300.
- Claim 2 The dentifrice composition according to claim 1, wherein the mass ratio of the component (D) / (C) is 0.6 to 1.8.
- Claim 3 Component (A) 0.01 to 0.2% by mass, component (B) 0.0001 to 0.1% by mass, component (C) 5 to 30% by mass, component (D) 5 to 30% by mass
- the dentifrice composition according to claim 1 or 2 which comprises 0.1 to 5% by weight of component (E) and component (E).
- Claim 4 The dentifrice composition according to claim 1, 2 or 3, further comprising (F) anisaldehyde.
- Claim 5 The dentifrice composition according to claim 4, comprising 0.0001 to 0.1% by mass of component (F).
- Claim 6 Further, 0 to 50% by weight of an abrasive, 0 to 10% by weight of propylene glycol, 0.1 to 5% by weight of a binder, and 0.1 to 10% by weight of a surfactant are blended to provide a toothpaste.
- the dentifrice composition of the present invention has a high local retention in the oral cavity of the preparation, is excellent in oral biofilm sterilizing power, has almost no taste, has little stickiness, and is excellent in use feeling.
- the dentifrice composition of the present invention comprises (A) isopropylmethylphenol, (B) 3-octanol, 3-octyl acetate, and one or more perfume ingredients selected from Fencon, (C) sorbit, (D) It contains glycerin and (E) polyethylene glycol having an average molecular weight of 280 to 9,300.
- Isopropylmethylphenol used in the present invention is 4-isopropyl-3-methylphenol, and commercially available products such as isopropylmethylphenol manufactured by Osaka Kasei Co., Ltd. can be used.
- the blending amount of (A) isopropylmethylphenol is preferably 0.01 to 0.2% (mass%, the same applies hereinafter), particularly 0.02 to 0.1% of the whole composition, and less than 0.01% In some cases, the sufficient bactericidal effect may not be exhibited, and if it exceeds 0.2%, an unpleasant taste may occur and the taste may deteriorate.
- the component (B) is a fragrance component effective for masking tastes derived from isopropylmethylphenol, and one or more fragrance components selected from 3-octanol, 3-octyl acetate, 3-octanone, and Fencon. It is. When combining two or more of the above fragrance components, a combination of 3-octanol and 3-octyl acetate and / or foncon is preferred. Even if octanol is used, 1-octanol, which is general as a fragrance for a dentifrice composition, does not have an effect of masking the unpleasant taste derived from isopropylmethylphenol, and is not suitable as a fragrance component according to the present invention.
- the component (B) can be a commercially available product.
- 3-octanol is a product of Shiono Perfume Co., Ltd.
- 3-octyl acetate and 3-octanone are products of Inoue Perfume Co., Ltd.
- Fencon is a perfume. You can use products from Eiko Co., Ltd.
- the total amount of the component (B) is not particularly limited, but is 0.0001 to 0.1%, particularly 0.0005 to 0.05%, particularly 0.001 to 0.02%, based on the total amount of the composition. desirable. If the blending amount is less than 0.0001%, it may not be possible to mask the tasting taste derived from isopropylmethylphenol, and the feeling of use may be worsened. If it exceeds 0.1%, the flavoring of the fragrance ingredient itself is too strong, resulting in tasting. There is a case.
- (C) Sorbit is a component that serves as a moistening agent, increases the retention of the preparation in the oral cavity, and further suppresses taste.
- the sorbit can be used without particular limitation as long as it is usually used in a dentifrice composition.
- a commercially available product such as D-sorbitol solution (70% sorbite solution) manufactured by Towa Kasei Kogyo Co., Ltd. is used. be able to.
- the blending amount of sorbit is preferably 5 to 30% of the total composition, more preferably 10 to 25%, and still more preferably 12 to 25% from the viewpoint of improving the retention of the preparation in the oral cavity and flavor development. is there. If the blending amount is less than 5%, the retention of the preparation in the oral cavity may be inferior or the taste may not be satisfactorily suppressed and the flavor may be inferior. If it exceeds 30%, the stickiness increases and the usability may be inferior.
- Glycerin is a component that acts as a wetting agent, increases the retention in the oral cavity of the preparation, and further suppresses stickiness.
- the glycerin is not particularly limited as long as it is usually used in a dentifrice composition, and specifically, commercially available products such as glycerin (85% glycerin) manufactured by Lion Chemical Co., Ltd. can be used.
- the blending amount of glycerin is preferably 5 to 30% of the whole composition, more preferably 10 to 25%, and further preferably 12 to 25% from the viewpoint of improving the retention of the preparation in the oral cavity. If the blending amount is less than 5%, the retention of the preparation in the oral cavity may be inferior, or stickiness may not be suppressed and the feeling of use may be inferior, and if it exceeds 30%, stickiness increases and the feeling of use may be inferior, or taste may be lost. There is.
- the mass ratio of (D) glycerin to (C) sorbit ((D) / (C)) is 0.5 to 2.0, particularly 0.6 to 1.8. It is preferable from the viewpoint of retention in the oral cavity and less stickiness.
- Component (E) is a polyethylene glycol having an average molecular weight of 280 to 9,300, and is one of the factors that improve the retention in the oral cavity and the biofilm bactericidal effect.
- Polyethylene glycol has an average molecular weight of 280 to 9,300, preferably 380 to 3,800, from the viewpoint of obtaining a high biofilm sterilizing effect derived from isopropylmethylphenol. If the average molecular weight is less than 280, the taste may be inferior and unpleasant taste may be caused.
- the average molecular weight is the value of the average molecular weight of polyethylene glycol described in the Quasi-drug Raw Material Standard 2006, 2nd printing, which is reacted with phthalic anhydride in pyridine to form a phthalate ester and titrated with sodium hydroxide. (The same applies hereinafter).
- polyethylene glycol 300 (average molecular weight 280 to 320), polyethylene glycol 400 (average molecular weight 380 to 420), polyethylene glycol 600 (average molecular weight 570 to 630), polyethylene glycol 1000 (average molecular weight 950 to 1,050)
- Polyethylene glycol 1540 (average molecular weight 1,290-1,650), polyethylene glycol 2000 (average molecular weight 1,850-2,150), polyethylene glycol 4000 (average molecular weight 2,600-3,800), polyethylene glycol 6000 ( Examples include an average molecular weight of 7,300 to 9,300).
- Component polyethylene glycol can be a commercially available product, such as those sold by Daiichi Kogyo Seiyaku Co., Ltd., NOF Corporation, Sanyo Chemical Co., Ltd., and the like.
- the blending amount of the polyethylene glycol is preferably 0.1 to 5%, particularly preferably 0.2 to 3% of the entire composition from the viewpoint of the sterilizing effect of isopropylmethylphenol inside the biofilm. If the blending amount is less than 0.1%, the penetration of isopropylmethylphenol into the biofilm may be reduced, resulting in inferior sterilization effect inside the biofilm. There is.
- anisaldehyde commercially available products such as products of Taiyo Perfume Co., Ltd. can be used.
- the blending amount is preferably 0.0001 to 0.1%, particularly 0.001 to 0.02%, based on the total amount of the composition.
- the blending amount is less than 0.0001%, the masking effect of the tasting taste derived from isopropylmethylphenol may not be sufficiently enhanced.
- the blending amount exceeds 0.1%, the flavor of anisaldehyde itself is the same as the component (B). May be too strong and cause taste.
- the total blending amount of the component (B) and the component (F) is 0.0002 to 0.15%, particularly 0, in order to further enhance the taste-masking effect derived from isopropylmethylphenol. It is desirable that the content be 0.002 to 0.03%. If the total blending amount is less than 0.0002%, the masking effect of disgusting may not be sufficiently enhanced, and if it exceeds 0.15%, the flavors of the components (B) and (F) themselves are too strong to cause discomfort. May occur.
- a combination of 3-octanol and anisaldehyde is particularly preferable, and an especially excellent masking effect is exerted with respect to an odor derived from isopropylmethylphenol.
- the dentifrice composition of the present invention can be prepared as a dentifrice such as a toothpaste, a liquid dentifrice, a liquid dentifrice, and a moisturized dentifrice, particularly as a dentifrice.
- a dentifrice such as a toothpaste, a liquid dentifrice, a liquid dentifrice, and a moisturized dentifrice, particularly as a dentifrice.
- other known additives can be blended as optional components in addition to the essential components as long as the effects of the present invention are not impaired.
- abrasives, thickeners, binders, surfactants and, if necessary, sweeteners, preservatives, active ingredients, fragrances, colorants and the like can be blended, and these ingredients can be mixed with water for production.
- abrasive examples include silica-based abrasives such as silica gel, aluminosilicate, zirconosilicate, dibasic calcium phosphate dihydrate, dibasic calcium phosphate anhydrate, tricalcium phosphate, tetracalcium phosphate, eighth calcium phosphate, calcium pyrophosphate, etc.
- silica-based abrasives such as silica gel, aluminosilicate, zirconosilicate, dibasic calcium phosphate dihydrate, dibasic calcium phosphate anhydrate, tricalcium phosphate, tetracalcium phosphate, eighth calcium phosphate, calcium pyrophosphate, etc.
- Calcium phosphate abrasive, aluminum hydroxide, alumina, titanium dioxide, crystalline zirconium silicate, polymethyl methacrylate, insoluble calcium metaphosphate, light calcium carbonate, heavy calcium carbonate, magnesium carbonate, tribasic magnesium phosphate, zeolite, Zirconium silicate, hydroxyapatite, fluoroapatite, calcium deficient apatite, synthetic resin-based abrasive, and the like may be used, and one or more may be used.
- the blending amount is usually 0 to 50%, particularly 5 to 40%, based on the total amount of the composition.
- thickener known thickeners other than the components (C) to (E), for example, sugar alcohols such as propylene glycol, ethylene glycol, 1,3-butylene glycol, reduced starch saccharified product, and polyhydric alcohol 1 A seed
- sugar alcohols such as propylene glycol, ethylene glycol, 1,3-butylene glycol, reduced starch saccharified product, and polyhydric alcohol 1 A seed
- These thickeners may not be blended, but the blending amount is 0 to 10% of the total composition, and 2 to 10% when blended, and the components (C), (D) and (E) The total blending amount is preferably in the range of 10 to 60%.
- Binders include cellulose binders such as sodium carboxymethyl cellulose, hydroxyethyl cellulose, hydroxypropyl cellulose, hydroxypropyl methyl cellulose, hydroxymethyl ethyl cellulose, methyl cellulose, xanthan gum, carrageenan, guar gum, sodium alginate, cationized cellulose, montmorillonite, gelatin , Sodium polyacrylate and the like can be mentioned, and these can be used alone or in combination of two or more.
- the blending amount is usually 0.1 to 5% with respect to the total amount of the composition.
- an anionic surfactant such as sodium lauryl sulfate and sodium myristyl sulfate, acyl sarcosine salts such as sodium lauroyl sarcosine and sodium myristoyl sarcosine, sodium dodecylbenzene sulfonate, hydrogenated coconut fatty acid monoglyceride sodium monosulfate, lauryl
- alkyl Sulfates especially sodium lauryl sulfate
- Nonionic surfactants include, for example, polyoxyethylene hydrogenated castor oil, sucrose fatty acid ester, alkylol amide, polyoxyethylene sorbitan monostearate, polyoxyethylene polyoxypropylene glycol, alkyl glucoside, decaglyceryl laurate, etc. Used. Of these, polyoxyethylene alkyl ethers and alkyl glycosides are preferred from the viewpoint of foaming.
- Amphoteric surfactants include lauryl dimethylaminoacetic acid betaine, N-coconut oil fatty acid acyl-N-carboxymethyl-N-hydroxyethylimidazolinium betaine, coconut oil fatty acid amidopropyl dimethylaminoacetic acid betaine, coconut oil fatty acid amidopropyl. Although betaine etc. are used, it is not restricted to the above.
- the compounding amount of the surfactant is usually 0.1 to 10%.
- Sweeteners include sodium saccharin, aspartame, stevioside, stevia extract, paramethoxycinnamic aldehyde, neohesperidyl dihydrochalcone, and perilartin.
- Preservatives include paraoxybenzoates such as butylparaben and ethylparaben, benzoic acid. Sodium etc. are mentioned.
- active ingredients in addition to isopropylmethylphenol, other active ingredients such as fluorine compounds such as sodium fluoride, sodium monofluorophosphate and tin fluoride, enzymes such as dextranase and mutanase, and normal phosphate Water-soluble phosphate compounds such as potassium salt and sodium salt, tranexamic acid, epsilon-aminocaproic acid, allantoinchlorohydroxyaluminum, hinokitiol, lauroyl sarcosine sodium, ascorbic acid, dl-tocopherol acetate, dihydrocholesterol, ⁇ -bisabolol, chlorhexidine salts, Azulene, glycyrrhetin, glycyrrhetinic acid, copper chlorophyllin sodium, chlorophyll, chelating phosphate compounds such as glycerophosphate, copper compounds such as copper gluconate, Aluminum acid, strontium chloride, potassium
- fragrances include, for example, eucalyptus oil, winter green oil, cassia oil, clove oil, thyme oil, sage oil, basil oil, cardamom oil, coriander oil, Peppermint oil, spearmint oil, peppermint oil, orange oil, lemon oil, mandarin oil, lime oil, grapefruit oil, coconut oil, sweetie oil, lavender oil, rosemary oil, laurel oil, camomil oil, caraway oil, marjoram oil, Celery oil, bay oil, origanum oil, pine needle oil, neroli oil, lemongrass oil, rose oil, jasmine oil, patchouli oil, Iris concrete, rose absolute, orange flower absolute, vanilla absolute, mango absolute, patchoulia absolute, ginger Natural fragrances such as oleoresin, pepper oleoresin, capsicum oleoresin, pepper extract, and processing of these natural fragrances (front reservoir cut, rear reservoir cut, fractional distillation, liquid-liquid extraction, essence,
- perfume materials used in dentifrice compositions such as perfume solvents such as fatty acid esters, can be used in combination.
- the blending amount of these fragrance materials is not particularly limited, but 0.000001 to 1% is preferably used in the composition.
- the flavoring fragrance using the fragrance material it is preferable to use 0.1 to 2.0% in the composition.
- Examples of the colorant include Blue No. 1, Yellow No. 4 (FD & C, Yellow No. 5 (19140), Green No. 3, etc.
- the amount of these components is usually within the range that does not impede the effects of the present invention. It can be an amount.
- the material of the container for storing the dentifrice composition of the present invention is not particularly limited, and a container usually used for a dentifrice composition can be used. Specifically, plastic containers such as polyethylene, polypropylene, polyethylene terephthalate, and nylon can be used.
- Dentifrice compositions having the compositions shown in Tables 3 to 5 were prepared by the following production method.
- Production method (1) A phase was prepared by mixing and dissolving water-soluble components (excluding binder and propylene glycol) in purified water at room temperature. (2) A phase B in which a binder was dispersed at room temperature in propylene glycol was prepared. (3) B phase was added and mixed in A phase under stirring, and C phase was prepared.
- phase C ingredients other than water-soluble ingredients such as fragrances and abrasives are mixed at room temperature using a 1.5 L kneader (manufactured by Ishiyama Kogakusho), defoamed under reduced pressure (4 kPa), and dentifrice
- the agent composition 1.2kg was obtained.
- fragrance compositions A to I shown in Table 1 were prepared and blended.
- the fragrance composition shown in Table 1 does not contain 3-octanol, 3-octyl acetate, 3-octanone, Fencon, or anisaldehyde.
- the dentifrice composition thus prepared was a laminated tube (LDPE55 / PET12 / LDPE20 / white LDPE60 / EMAA20 / AL10 / EMAA30 / LDPE20 / LLDPE30, thickness 257 ⁇ m (Dai Nippon Printing Co., Ltd.) having an innermost layer made of linear low density polyethylene. 50 g) was filled.
- the abbreviations and names in the layer structure of the laminated tube used are as follows, and the numbers following the abbreviations indicate the thickness ( ⁇ m) of each layer.
- LDPE Low density polyethylene white LDPE: White low density polyethylene
- LLDPE Linear low density polyethylene AL: Aluminum PET: Polyethylene terephthalate EMAA: Ethylene / methacrylic acid copolymer resin
- the obtained dentifrice composition was evaluated by the following methods for the retention in the oral cavity of the preparation, the bactericidal effect, little stickiness during use, and no taste. The results are also shown in Tables 3-5.
- the number of viable bacteria may fluctuate somewhat depending on the culture conditions, when artificial saliva is used instead of the test drug, it is about 8.5 log cfu (colony forming units / HA plate), less than 6.0 log cfu / HA plate In this case, it was judged that the biofilm sterilizing power was high.
- Evaluation criteria for model biofilm sterilization effect ⁇ : Less than 5.0 log cfu / HA plate ⁇ : More than 5.0 log cfu / HA plate to less than 6.0 log cfu / HA plate ⁇ : More than 6.0 log cfu / HA plate to 7.0 log Less than cfu / HA board x: 7.0 log cfu / HA board or more
- Evaluation method of low stickiness during use Evaluation was made by a sensory test using 10 expert panelists. About 1 g of the dentifrice composition was placed on a commercial product toothbrush and brushed for 3 minutes, and the low stickiness during use was evaluated in the following four stages in comparison with the control product (Comparative Example 2). The average score of 10 people is shown in the table with ⁇ , ⁇ , ⁇ , ⁇ according to the following criteria.
- control product Comparative Example 2
- Very little stickiness compared to the control product 3 Very little stickiness compared to the control product 2: Slightly less stickiness compared to the control product 1: Equivalent or comparable to the control product It was more sticky Usability evaluation criteria ⁇ : 3.0 points to 4.0 points ⁇ : 2.0 points to less than 3.0 points ⁇ : 1.5 points to less than 2.0 points ⁇ : Less than 1.5 points
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Abstract
Description
請求項1:
(A)イソプロピルメチルフェノール、
(B)3-オクタノール、3-オクチルアセテート、3-オクタノン、フェンコンから選ばれる少なくとも1種の香料成分、
(C)ソルビット、
(D)グリセリン、
(E)平均分子量が280~9,300のポリエチレングリコール
を含有してなることを特徴とする歯磨剤組成物。
請求項2:
(D)/(C)成分の質量比が0.6~1.8である請求項1記載の歯磨剤組成物。
請求項3:
(A)成分を0.01~0.2質量%、(B)成分を0.0001~0.1質量%、(C)成分を5~30質量%、(D)成分を5~30質量%、及び(E)成分を0.1~5質量%含有する請求項1又は2記載の歯磨剤組成物。
請求項4:
更に、(F)アニスアルデヒドを含有する請求項1、2又は3記載の歯磨剤組成物。
請求項5:
(F)成分を0.0001~0.1質量%含有する請求項4記載の歯磨剤組成物。
請求項6:
更に、研磨剤を0~50質量%、プロピレングリコールを0~10質量%、粘結剤を0.1~5質量%、界面活性剤を0.1~10質量%配合し、練歯磨剤として調製された請求項1乃至5のいずれか1項記載の歯磨剤組成物。
上記香料成分の2種以上を組み合わせる場合は、3-オクタノールと3-オクチルアセテート及び/又はフェンコンとの組み合わせが好適である。
なお、オクタノールであっても、歯磨剤組成物の香料として一般的な1-オクタノールは、イソプロピルメチルフェノール由来の嫌味をマスキングする効果がなく、本発明にかかわる香料成分として相応しくない。
ポリエチレングリコールは、平均分子量が280~9,300であり、好ましくは380~3,800であることが、イソプロピルメチルフェノール由来の高いバイオフィルム殺菌効果を得る点で重要である。平均分子量が280未満では味に劣り嫌味が生じる場合があり、9,300を超えるとバイオフィルム内部への浸透効果が低くなり、殺菌効果に劣ったり、べたつきが高まり使用感に劣る場合がある。
なお、上記平均分子量は医薬部外品原料規格2006第2刷記載のポリエチレングリコールの平均分子量の値であり、ピリジン中で無水フタル酸と反応させてフタル酸エステルとし、水酸化ナトリウムで滴定することにより測定した平均分子量である(以下、同様。)。
なお、(B)成分と(F)成分との組み合わせとしては、特に3-オクタノール及びアニスアルデヒドとの組み合わせが好ましく、これによりイソプロピルメチルフェノール由来の嫌味に対して、とりわけ優れたマスキング効果が発揮される。
アニオン性界面活性剤としては、ラウリル硫酸ナトリウム、ミリスチル硫酸ナトリウム等のアルキル硫酸塩、ラウロイルサルコシンナトリウム、ミリストイルサルコシンナトリウム等のアシルサルコシン塩、ドデシルベンゼンスルホン酸ナトリウム、水素添加ココナッツ脂肪酸モノグリセリドモノ硫酸ナトリウム、ラウリルスルホ酢酸ナトリウム、N-パルミトイルグルタミン酸ナトリウム等のN-アシルグルタミン酸塩、N-メチル-N-アシルタウリンナトリウム、N-メチル-N-アシルアラニンナトリウム、α-オレフィンスルフォン酸ナトリウムなどが挙げられ、中でもアルキル硫酸塩、特にラウリル硫酸ナトリウムが好適である。
ノニオン性界面活性剤としては、例えばポリオキシエチレン硬化ヒマシ油、ショ糖脂肪酸エステル、アルキロールアマイド、ポリオキシエチレンソルビタンモノステアレート、ポリオキシエチレンポリオキシプロピレングリコール、アルキルグルコシド、ラウリン酸デカグリセリル等が用いられる。この中でも泡立ちの点からポリオキシエチレンアルキルエーテル、アルキルグリコシドなどが好適である。
両性界面活性剤としては、ラウリルジメチルアミノ酢酸ベタインや、N-ヤシ油脂肪酸アシル-N-カルボキシメチル-N-ヒドロキシエチルイミダゾリニウムベタイン、ヤシ油脂肪酸アミドプロピルジメチルアミノ酢酸ベタイン、ヤシ油脂肪酸アミドプロピルベタイン等が用いられるが、上記に限られるものではない。
界面活性剤の配合量は通常0.1~10%である。
表3~5に示す組成の歯磨剤組成物(練歯磨)を下記製造法により調製した。
(製造法)
(1)精製水中に水溶性成分(粘結剤、プロピレングリコールを除く)を常温で混合溶解させたA相を調製した。
(2)プロピレングリコール中に粘結剤を常温で分散させたB相を調製した。
(3)撹拌中のA相の中にB相を添加混合し、C相を調製した。
(4)C相中に、香料、研磨剤等の水溶性成分以外の成分を1.5Lニーダー(石山工作所製)を用いて常温で混合し、減圧(4kPa)による脱泡を行い、歯磨剤組成物1.2kgを得た。
なお、形態が水溶液の成分については、表中も含めいずれも純分換算の配合量を示した。
また、香料については、表1に示す香料組成物A~Iを調製し、配合した。なお、表1に示す香料組成物中に3-オクタノール、3-オクチルアセテート、3-オクタノン、フェンコン、アニスアルデヒドは含まれない。
使用したラミネートチューブの層構成における略号と名称は以下の通りであり、略号に続く数字は各層の厚み(μm)を示したものである。
LDPE:低密度ポリエチレン
白LDPE:白色低密度ポリエチレン
LLDPE:直鎖状低密度ポリエチレン
AL:アルミニウム
PET:ポリエチレンテレフタレート
EMAA:エチレン・メタクリル酸の共重合体樹脂
調製した歯磨剤組成物を約1.0g入れた栓付試験管に水20mLを加え、10秒間上下に強く撹拌したときの歯磨剤組成物の溶け残りを製剤の滞留量として測定し、下記基準にて口腔内滞留性を評価した。なお、撹拌前の初期質量の測定値を100%とし、この値に対する撹拌後の歯磨剤組成物の残分を濾過した時の残分質量を滞留率としてパーセンテージで算出した。
◎:滞留率が60%以上
○:滞留率が30%以上60%未満
△:滞留率が10%以上30%未満
×:滞留率が10%未満
直径7mmのハイドロキシアパタイト(HA)板を0.45μmのフィルターで濾過した人無刺激唾液で4時間処理し、ヘミン及びメナジオンを添加したトリプチケースソイブロス中、ストレプトコッカス ミュータンス(Streptococcus mutans)、アクチノマイセス ナエスランディ(Actinomyces naeslundii)、ベイヨネラ パルビュラ(Veillonella parvula)、フゾバクテリウム ヌクレアタム(Fusobacterium nucleatum)及びポルフィロモナス ジンジバリス(Porphyromonas gingivalis)の5菌種混合系で2週間連続培養することにより、HA板上にモデルバイオフィルムを形成させた。2週間培養後より1日1回、下記表3~5に示した歯磨製剤に人口唾液(50mmol/L KCl+1mmol/L KH2PO4+1mmol/L CaCl2+0.1mmol/L MgCl2(pH7.0))を2倍質量添加し、分散させた後の遠心上清を試験薬剤液として、これにモデルバイオフィルムを3分間浸漬処理し、更に3日間培養した。培養終了時にモデルバイオフィルムを取り出し、分散後、寒天平板上で培養することによりモデルバイオフィルム中の各菌種の生菌数を求めた。生菌数は、培養条件により多少振れるが、試験薬剤の代わりに人口唾液を作用させた場合では、約8.5log cfu(colony forming units/HA板)であり、6.0log cfu/HA板未満の場合において、バイオフィルム殺菌力が高いと判断した。
◎:5.0log cfu/HA板未満
○:5.0log cfu/HA板以上~6.0log cfu/HA板
未満
△:6.0log cfu/HA板以上~7.0log cfu/HA板
未満
×:7.0log cfu/HA板以上
専門家パネラー10人を用いた官能試験により評価した。歯磨剤組成物約1gを市販品歯ブラシに載せて3分間ブラッシングを行い、使用中のべたつきの少なさについて、対照品(比較例2)との比較で下記の4段階で評価した。10名の平均点を次の基準に従い、◎、○、△、×で表に示した。
4:対照品と比較してべたつきが非常に少なかった
3:対照品と比較してべたつきがかなり少なかった
2:対照品と比較してべたつきがやや少なかった
1:対照品と比較して同等もしくはそれ以上のべたつきであった
使用感評価基準
◎:3.0点以上~4.0点以下
○:2.0点以上~3.0点未満
△:1.5点以上~2.0点未満
×:1.5点未満
専門家パネラー10人を用いた官能試験を実施した。歯磨剤組成物約1gを市販品歯ブラシに載せて3分間ブラッシングを行い、使用中に感じた嫌味のなさを、以下の評点に従って評価した。10名の評価結果の平均値を求め、以下の基準で◎及び○の評価が確保されるものを、嫌味のない歯磨剤組成物であると判断した。
嫌味のなさ
4点:嫌味が全くない
3点:嫌味がほとんどない
2点:嫌味がややある
1点:嫌味がある
嫌味のなさの評価基準
◎ :3.7点以上~4.0点以下
◎~○:3.3点以上~3.7点未満
○ :3.0点以上~3.3点未満
△ :2.0点以上~3.0点未満
× :2.0点未満
Claims (6)
- (A)イソプロピルメチルフェノール、
(B)3-オクタノール、3-オクチルアセテート、3-オクタノン、フェンコンから選ばれる少なくとも1種の香料成分、
(C)ソルビット、
(D)グリセリン、
(E)平均分子量が280~9,300のポリエチレングリコール
を含有してなることを特徴とする歯磨剤組成物。 - (D)/(C)成分の質量比が0.6~1.8である請求項1記載の歯磨剤組成物。
- (A)成分を0.01~0.2質量%、(B)成分を0.0001~0.1質量%、(C)成分を5~30質量%、(D)成分を5~30質量%、及び(E)成分を0.1~5質量%含有する請求項1又は2記載の歯磨剤組成物。
- 更に、(F)アニスアルデヒドを含有する請求項1、2又は3記載の歯磨剤組成物。
- (F)成分を0.0001~0.1質量%含有する請求項4記載の歯磨剤組成物。
- 更に、研磨剤を0~50質量%、プロピレングリコールを0~10質量%、粘結剤を0.1~5質量%、界面活性剤を0.1~10質量%配合し、練歯磨剤として調製された請求項1乃至5のいずれか1項記載の歯磨剤組成物。
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JP6545510B2 (ja) * | 2015-04-08 | 2019-07-17 | 三栄源エフ・エフ・アイ株式会社 | 経口組成物用添加剤 |
JP7031253B2 (ja) | 2017-11-29 | 2022-03-08 | ライオン株式会社 | 歯磨剤組成物 |
JP2019112329A (ja) * | 2017-12-22 | 2019-07-11 | ライオン株式会社 | 口腔用組成物及びその変色抑制方法 |
WO2019163460A1 (ja) * | 2018-02-26 | 2019-08-29 | ライオン株式会社 | 歯磨剤組成物 |
JP7477291B2 (ja) * | 2019-12-26 | 2024-05-01 | サンスター株式会社 | 口腔用組成物 |
CN113980097B (zh) * | 2021-12-29 | 2022-03-29 | 浙江湃肽生物有限公司南京分公司 | 棕榈酰三肽-5的纯化方法 |
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