TW201609164A - 用於口腔護理組成物之二組分氧化系統 - Google Patents
用於口腔護理組成物之二組分氧化系統 Download PDFInfo
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- TW201609164A TW201609164A TW103141315A TW103141315A TW201609164A TW 201609164 A TW201609164 A TW 201609164A TW 103141315 A TW103141315 A TW 103141315A TW 103141315 A TW103141315 A TW 103141315A TW 201609164 A TW201609164 A TW 201609164A
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Abstract
本發明係關於一種用於牙膏組成物之二組分氧化系統,其提供了優異的漂白效果,連同含有該氧化系統之口腔護理組成物及其方法與用途。
Description
本發明有關於一種用於牙膏組成物之二-組分氧化系統,其提供了優異的漂白效果,連同含有該氧化系統之口腔護理組成物及其方法與用途。
人們通常希望有潔白的牙齒。此潔白的牙齒是良好健康與特別是良好口腔健康護理之指標。問題是各種食物與吸香菸將使牙齒變色。諸如咖啡、茶與可樂之飲料可使牙齒變色。因此已研發欲美白牙齒之各種產品與程序。這些產品與程序或為購買的及/或由消費者直接使用或由一牙醫或其它專業人士所施用。
目前在家處理(treatment)方法包括磨料牙膏(abrasive toothpaste)、產生氧化物的牙膏、與一牙托(dental tray)及美白條體使用的美白凝膠。此技術的有效性取決於各項因素,包括該污斑(stain)的類型與強度、該漂白劑的類型、該漂白劑在該牙齒上的接觸時間、於該組成物中有用的漂白活性物之量、欲穿透該牙齒琺瑯質之漂白劑能力、及消費者依從性。有效性還取決於於該組成物中漂白活性物之量、在使用期間欲被釋放的活性物的能力、及於該產品中活性物的穩定性。然而,因為在一或多項的相關該組成物與消費者依從性之因素的欠缺性,許多這些種處理之有效性係被負面影響的。
因此有需要用於包含於口腔護理組成物之改良的美白(意即
漂白)組成物,特別是,牙膏組成物。
除非另有指示,當與本發明牙膏組成物之一成分結合
使用時,該術語“%”或“百分比”係意欲指於該牙膏組成物中的指示成分之重量百分比。於一些具體實施中,本發明提供了一種用於口腔護理組成物之漂白系統,其包含過氧化物(例如過氧化氫)、及過氧二硫酸鹽(peroxydisulfate)(例如過氧二硫酸鈉),其中該漂白系統的pH為6至8。
於一些另外具體實施中,本發明提供了一種口腔護理
組成物,例如牙膏組成物,其包含本發明之漂白系統。
於一些本發明的口腔護理組成物之具體實施中,該過
氧化物係以0.01%至1%;或0.01%至0.5%;或0.05%至0.3%;或0.05%至0.2%;或0.1%之用量存在,以該口腔護理組成物的重量計。
於一些本發明的口腔護理組成物之具體實施中,該過
氧二硫酸鹽係以1%至10%;或3%至8%;或5%至7%;或6%至7%之用量存在,以該口腔護理組成物的重量計。
於一些本發明的口腔護理組成物之具體實施中,該組
成物的pH為4至8,及於一些本發明的口腔護理組成物之另外具體實施中,該組成物的pH為5.5至7.5,及於一些本發明的口腔護理組成物之另外具體實施中,該組成物的pH為5.8至7.2。
於一些本發明的口腔護理組成物之具體實施中,該組
成物包含一或多種保濕劑(humectant);一或多種增稠劑(thickener);一或多種磨料(abrasives);一或多種氟的來源;及一或多種清潔劑或界面活性劑。
於一些本發明的口腔護理組成物之具體實施中,該組
成物包含本文所述的漂白系統,及以該組成物的重量計:0%至23%用量之聚乙二醇;0%至32%用量之甘油(99.0%至101.0%);1%至40%用量之丙二醇;1%至10%用量之聚乙二醇/聚丙二醇116/66共聚物;0.5%至10%用量之聚乙烯吡咯啶酮(polyvinyl pyrrolidone);5%至30%用量之焦磷酸鈣;0%至3%用量之矽石,例如燻矽石;1%至3%用量之十二基硫酸鈉;及0%至3%用量之焦磷酸四鈉。於一些具體實施中,該組成物另包含0.01%至0.05%用量之丁基化的羥基甲苯,以該組成物的重量計。於一些具體實施中,該組成物包含0.1%用量之過氧化氫,以該組成物的重量計,及7%用量之過氧二硫酸鈉,以該組成物的重量計。
於一些本發明的口腔護理組成物之具體實施中,該組
成物另包含一或多種佐劑(adjuvant),其選自甜味劑、調味劑及著色劑。
於一些另外具體實施中,本發明提供了一種用於美白牙齒之方法,其包含使牙齒與根據本發明之口腔護理組成物接觸。
於一些另外具體實施中,本發明提供了包含過氧化物及過氧二硫酸鹽之漂白系統於製造根據本發明之口腔護理組成物之用途。
已發現按照本發明,包含過氧化物(例如過氧化氫(HP))、及過氧二硫酸鹽(例如過氧二硫酸鈉(PDS))之漂白或氧化系統,其中該漂白系統的pH為4至8,提供了優於單獨使用過氧化氫之美白效果。
過氧二硫酸鈉(有時係指過硫酸鈉或PDS)具有分子式Na2S2O8。相比於HP之1.77v,PDS為一具氧化電位(oxidation potential)2.12v
左右之強氧化劑。已發現按照本發明,在酸性條件(i.e.,在一pH小於7)下PDS呈現為最好的漂白劑,但在中性或微鹼性條件(i.e.,在pH 7至8)下仍然維持顯著的漂白有效性。雖然HP要求用於最大有效性之鹼性條件,按照本發明,PDS及低量HP(i.e.,0.01%至1%;或0.01%至0.5%;或0.05%至0.3%;或0.05%至0.2%;或0.1%,以該口腔護理組成物的重量計)可被調配成一口腔護理組成物,例如一牙膏,在一pH接近中性(i.e.,5.8至7.2)下其維持二種氧化劑的功效,及產生具備有比單獨使用0.1% HP之更優的美白能力之組成物。
因此,於一具體實施,本發明提供了一種漂白或氧化系統,
包含過氧化物(例如過氧化氫(HP))、及過氧二硫酸鹽(例如過氧二硫酸鈉(PDS)),其中該漂白系統的pH為4至8。本發明另外提供了一種口腔護理組成物,包含本發明之漂白或氧化系統。
如本文所使用,"口腔護理組成物"意欲意指一產品,其於通
常的用法過程中,不會為特定治療劑的全身性投藥(systemic administration)之目的而被刻意吞食,但是為了口服活性(oral activity)之目的而被留存於該口腔中持續一段足以實質上接觸全部牙齒表面及/或口腔組織(oral tissues)之時間。該口腔護理組成物可為各種形式包括牙膏、牙劑(dentifrice)、牙膠(tooth gel),牙齦下凝膠(subgingival gel)、漱口水、慕斯(mousse)、泡沫體、口噴劑(mouthspray)、菱片劑(lozenge)、牙粉(tooth powder)、咀嚼片(chewable tablet)、口香糖(chewing gum)或假牙產品。於一具體實施,該口腔護理組成物為一選自牙膏、牙劑、牙膠、漱口水或假牙產品,特別適宜的是牙膏。
該口腔護理組成物還可被合併至用於直接施用(application)或附著(attachment)至口腔表面之條帶(strip)或薄膜上。
本發明的口腔護理組成物之漂白或氧化系統之過氧化物可
為已知可用於牙齒美白應用之任意的各種過氧化物來源,例如及非限制,過氧化氫或過氧化氫來源,如過氧化物鹽或錯合物(如,諸如過氧磷酸鹽、
過氧碳酸鹽、過硼酸鹽、過氧矽酸鹽、或過硫酸鹽類;例如過氧化鈣、過氧化鋅、過氧化鈉、過氧磷酸鈣、過硼酸鈉、過氧化碳酸鈉、過氧磷酸鈉、過硫酸鉀,過氧化脲,或過氧化氫交聯的聚乙烯吡咯啶酮錯合物。於一些特定具體實施中,該過氧化物為過氧化氫。一般,過氧化氫或過氧化氫來源係以欲提供過氧化氫0.01%至1%;或0.01%至0.5%;或0.05%至0.3%;或0.05%至0.2%;或0.1%之量存在,以該口腔護理組成物的重量計。
本發明的口腔護理組成物之漂白或氧化系統之過氧二硫酸
鹽(亦已知為過硫酸鹽)可為一金屬鹽形式,例如及非限制,該鈉、鉀、銨、鈣、鋅、或鎂鹽。於一較佳具體實施,該過氧二硫酸鹽為過氧二硫酸鈉。
一般,該過氧二硫酸鹽係以1%至8%;或3%至8%;或5%至7%;或6%至7%之用量存在,以該口腔護理組成物的重量計。
如上所述及,該組成物的pH係在或接近中性(即4至8),其維
持該HP及PDS氧化劑二者之功效。因此,於一些具體實施中,該口腔護理組成物之pH為5至7,及於一些另外具體實施中,該口腔護理組成物之pH為7至8。
本發明的口腔護理組成物,例如本發明之牙膏組成物,可包
括於牙膏組成物技術中已知的各種組成及成分。例如,本發明的口腔護理組成物可包括一或多種保濕劑;一或多種黏合劑(binder)或增稠劑;一或多種磨料;一或多種氟化物的來源;及一或多種清潔劑或界面活性劑。
適合的保濕劑實例包括多元醇類(多醇類)諸如丙二醇、甘
油、山梨糖醇(sorbitol)、木糖醇(xylitol)或低分子量聚乙二醇類(PEGs),或聚乙二醇/聚丙二醇共聚物,諸如例如聚乙二醇/聚丙二醇116/66共聚物。於各項具體實施中,保濕劑可避免膏體或凝膠組成物一旦曝露於空氣中之硬化,還可有甜味劑之功能。於一些具體實施中,該保濕劑系統由一或多種的於0%至23%用量之聚乙二醇;於0%至32%用量之甘油(99.0%至101.0%);
於1%至40%用量之丙二醇;及於1%至10%用量之聚乙二醇/聚丙二醇116/66共聚物所構成。然而,還預期的是存在有尚提供令人滿意的牙膏性質之其它保濕劑。
於一些具體實施中,本發明之牙膏組成物包括一或多種黏合
劑及/或增稠劑。黏合劑可包括聚合物,其包括聚乙二醇類、多醣類(e.g.,纖維素衍生物,例如羧甲基纖維素,或多醣膠,例如黃原膠(xanthan gum)或鹿角菜膠(carrageenan gum))。酸性聚合物,例如聚丙烯酸酯凝膠,可以它們的游離酸(free acid)或部分地或完全地中和的水溶性鹼金屬(如,鉀及鈉)或銨鹽類之形式被提供;及包括合成的陰離子聚合性多羧酸酯類,諸如馬來酸酐或酸與另一可聚合的乙烯性不飽和單體之1:4至4:1共聚物,較佳地具有一分子量(M.W.)為約30,000至約1,000,000,最佳地約300,000至約800,000之甲基乙烯基醚/馬來酸酐。於一些具體實施中,該黏合劑或增稠劑系統含有聚乙烯吡咯啶酮、煅製矽石、鹿角菜膠或一或多種衍生自纖維素之黏合劑,較佳地一纖維素醚,例如羧甲基纖維素(CMC),如具有一中至高的聚合度,如1000至3000,例如約2000,如,以鈉鹽形式,如,CMC 2000s,以有效於提供所希望黏度及穩定度之用量。一般,該增稠劑係以至多10%(例如0.1%至10%)之用量存在於該組成物中。增稠劑的實例包括,沒有限制,如上所述黏合劑,其還改質黏度,例如羧乙烯基聚合物,纖維素系聚合物諸如羥乙基纖維素、紋甲基纖維素(羧甲基纖維素(carmellose))及其鹽類(e.g.,羧甲基纖維素鈉),天然膠諸如梧桐膠(karaya)、黃原膠、阿拉伯樹膠(gum arabic)及黃耆膠(tragacanth)、膠態鎂鋁矽酸鹽、膠態矽石,及其混合物。於一些較佳具體實施中,該黏合劑或增稠劑系統包含例如於0.5%至10%用量之聚乙烯吡咯啶酮,及例如於至多5%用量之燻矽石,以該組成物的重量計。
該牙膏組成物另包含一或多種磨料,如選自磨料矽石及/或
鈣鹽類,如碳酸鈣及/或鈣磷酸鹽或焦磷酸鹽磨料,如,磷酸三鈣(Ca3(PO4)2)、羥基磷灰石(hydroxyapatite)(Ca10(PO4)6(OH)2)、或磷酸二鈣二水合物(CaHPO4‧2H2O,本文亦有時係指為DiCal)或焦磷酸鈣。於一特定具體實施,該磨料包括以例如10%至20%用量之一或二種焦磷酸鈣,及以例如至多5%(例如1%至3%)用量之矽石(例如燻矽石)。
本發明之牙膏組成物可另包括一或多種清潔劑或界面活性
劑。可用於本發明之界面活性劑包括,但不限制:陰離子性、非離子性、及兩性界面活性劑。界面活性劑可用以(例如)提供該調配物之加強的穩定度,用以透過清淨力(detergency)幫助清潔口腔表面,及用以一旦攪動時(e.g.,在刷牙期間)增加該組成物之起泡。適合的陰離子性界面活性劑包括,例如,C8-20烷基硫酸鹽類之水溶性鹽類、C8-20脂肪酸之磺酸化單甘油酯類(sulfonated monoglycerides)、肌胺酸酯類(sarcosinates)及牛磺酸酯類(taurates);例如月桂基硫酸鈉、椰子基單甘油酯磺酸鈉、月桂基肌胺酸鈉、月桂基異乙二磺酸(isoethionate)鈉、月桂醚(laureth)羧酸鈉及十二烷基苯磺酸鈉,及其混合物。適合的非離子性界面活性劑包括,例如,泊洛沙姆類(poloxamers)、聚氧乙烯山梨糖醇酯類(polyoxyethylene sorbitan esters)、脂肪醇乙氧酯類(fatty alcohol ethoxylates)、烷基酚乙氧酯類、三級胺氧化物、三級膦氧化物、二烷基亞碸類,及其混合物。於一具體實施,該牙膏包含例如於1%至3%、或約2%用量之月桂基硫酸鈉。該牙膏還可或替代地含有一或多種非極性的界面活性劑,例如乙二醇及丙二醇之聚合物及共-聚合物,如,泊洛沙姆類,意即,由側翼為二個聚氧乙烯(聚(環氧乙烷))的親水鏈之中央聚氧丙烯(聚(環氧丙烷))的疏水鏈所構成的非離子性三嵌段共聚物。於一些具體實施中,該二個PEG嵌段之大約長度平均為約50至150個重複單元,如,約100個重複單元,同時該丙二醇嵌段之大約長度平均為約25至75個重複單元,e.g.,約50至60個重複單元。於一具體實施,該泊洛沙姆為泊
洛沙姆407,亦已知為BASF商品名Pluronic F127,如,於0.5%至2%,例如約1%之用量。例如,於特定具體實施中,本發明之牙膏組成物可含有月桂基硫酸鈉及泊洛沙姆(諸如泊洛沙姆407)二者。於一些具體實施中,該月桂基硫酸鈉係以1%至2%,例如約2%之用量存在,及該泊洛沙姆(諸如泊洛沙姆407)係以0.5%至2%,例如約1%之用量存在,以該牙膏組成物之重量計。於一較佳具體實施,該清潔劑或界面活性劑為月桂基硫酸鈉,於1%至3%之用量,以該組成物的重量計.
本發明的口腔護理組成物還可含有一氟化物來源-意即一在該口腔的護理及衛生上具有益效果之含有氟的化合物,如於酸中琺瑯質溶解度之降低(diminution)及保護該牙齒對抗蛀蝕(decay)。適合的氟來源實例包括氟化鈉、氟化亞錫、氟化鉀、氟化亞錫鉀(SNFZ-KF)、氟鋯酸鉀、六氟錫酸鈉、氯氟化亞錫、及單氟磷酸鈉(MFP)。於此存在,該氟化物來源會提供氟離子,其量為足以供應約25ppm至約25,000ppm的氟離子,一般至少約500ppm,如,約500至約2000ppm,如,約1000至約1600ppm,如,約1450ppm。該氟之適當量將取決於該特定應用。用於一般消費者使用之牙膏基本上會具有約1000至約1500ppm,使用兒童(pediatric)牙膏有時較少量。用於專業人士應用之牙劑或塗層可具有多達約5,000或甚至約25,000ppm氟。以這些材料之重量計的用量,其解離或釋放氟或含有氟的離子,將取決於該相對離子(counterion)的分子量以及取決於特定應用,但合適地可以有效的而無毒性的用量存在,通常於0.1至2重量%範圍內。於一些具體實施中,使用選自氟化鈉、氟化亞錫、單氟磷酸鈉及其混合物之氟化物來源,例如本發明之牙膏可包含有效量的單氟磷酸鈉。於一些具體實施中,該氟來源為氟化鈉,其以0.15%至0.5%,或0.2%至0.3%之用量存在,以該牙膏組成物之重量計。
本發明的口腔護理組成物還可包含一或多種牙垢控制劑,例
如焦磷酸鹽類諸如焦磷酸四鈉、檸檬酸鋅、及抗生素化合物諸如三氯生(triclosan)。於一些具體實施中,本發明的口腔護理組成物包含焦磷酸四鈉,於至多3%(即,0%至3%)之用量,以該組成物的重量計。
如此項技術領域熟悉者顯而易知,本發明之一些組成可表現
多項功能,及本文確認一化合物為具有一項功能非意指排除它用於特定組成物之其它功能。例如,一諸如羧甲基纖維素或聚乙二醇之化合物可用作為一黏合劑,而且還具有保濕劑及增稠性質。
還了解的是於調配物中的化合物可自然地反應、解離
(disassociate)、及/或與彼此形成錯合物。因此,特定成分可原位被形成(例如,了解的是氯化鈉可藉使氫氧化鈉與氫氯酸反應而形成),及還可於調配物中存在不同形式(例如,於該氯化鈉被溶解的程度,會自然地解離成分離的鈉及氯離子,相對於一固態鹽)。如於此項項技術中通常者,本發明之組成物係以例示調配物成分敘述,而非意欲排除導致相同最後組成物之其它成分之組合,或排除該所述成分組合之自然反應產品。
於如上述之一些具體實施中,本發明之牙膏組成物可另包括一或多種甜味劑、調味劑及著色劑。可使用任何適合的調味或甜化材料。適合的調味組成分實例包括調味油,e.g.綠薄荷油、薄荷、冬青、茴香(clove)、鼠尾草(sage)、桉樹(eucalyptus)、馬鬱蘭(marjoram)、桂皮(cinnamon)、檸檬、及柑橘,及水楊酸甲酯。適合的甜味劑包括蔗糖、乳糖、麥芽糖、木糖醇、環磺酸鈉(sodium cyclamate)、紫蘇糖(perillartine)、AMP(天門冬胺醯基苯基丙胺酸甲基酯(aspartyl phenyl alanine methyl ester)、糖精(saccharine)及類似物。適當地,香料(flavor)及甜味劑可各自或一起包含約0.1%至5%更多的口腔護理組成物。於一些具體實施中,本發明之牙膏組成物包括一或多種調味劑於約0.5%至約3.0%;約0.8%至約1.6%;或約1.2%之用量。於一些另外具體實施中,該牙膏含有一或多種甜味劑於至多0.5%
之用量,以該牙膏組成物之重量計;例如至多0.3%;或0.1%至0.2%。
各種其它材料可併入本發明之口腔製劑(oral preparation)
中,諸如美白劑,包括過氧化脲、過氧化鈣、二氧化鈦、過氧化氫、聚乙烯吡咯啶酮(PVP)與過氧化氫之錯合物,保存劑(preservatives)諸如丁基化的羥基甲苯,維生素類諸如維生素B6、B12、E及K,矽酮類,葉綠素(chlorophyll)化合物,用於治療牙齒過敏症之鉀類諸如硝酸鉀,以及抗牙垢劑諸如三聚磷酸鈉及二-與四-鹼金屬焦磷酸鹽類諸如焦磷酸二-及四鈉。這些試劑,當存在時,係以不會實質上負面影響所希望的性質及特性之用量被併入本發明之組成物中。
一般,各個前述佐劑基本上可併入該即溶牙膏(instant toothpastes)中,係以至多5%之用量提供它們不會負面影響本發明之非-出血性條帶牙劑(non-bleeding striped dentifrice)的穩定度及清潔性質。
於一些本發明的口腔護理組成物之具體實施中,該組成物包含本文所述的漂白系統,及:0%至23%用量之聚乙二醇;0%至32%用量之甘油(99.0%至101.0%);1%至40%用量之丙二醇;1%至10%用量之聚乙二醇/聚丙二醇116/66共聚物;0.5%至10%用量之聚乙烯吡咯啶酮;5%至30%用量之焦磷酸鈣;0.1%至5%用量之矽石,例如燻矽石;1%至3%用量之月桂基硫酸鈉;及0%至3%用量之焦磷酸四鈉,以該組成物的重量計。
於一具體實施,本發明提供一種用於口腔護理組成物之漂白系統,包含過氧化氫及/或過氧化氫來源及過氧二硫酸鹽,如過氧二硫酸鈉,
其中過氧二硫酸鹽(以沒有它的相對離子之過氧二硫酸鹽之重量計)對過氧化氫之比例為10:1至100:1,以重量計,如,25:1至75:1,如,50:1至60:1。
於另一具體實施,本發明提供口腔護理組成物,包含這漂白系統,例如口腔護理組成物(組成物1),如牙膏組成物,包含(i)過氧化氫及/或一過氧化氫來源及(ii)一過氧二硫酸鹽,如,過氧二硫酸鈉,其中過氧二硫酸鹽對過氧化氫之比例為10:1至100:1,以重量計,如,25:1至75:1,如,50:1至60:1,及其中該組成物的pH為4至8。(過氧二硫酸鹽的用量給定以沒有它的相對離子之過氧二硫酸鹽之重量計,除非另有指示。特定鹽類,如,過氧二硫酸鈉,之用量給定以該鹽之重量計,除非另有指示)。例如,本發明提供:
1.1組成物1,其中該過氧化物為過氧化氫或過氧化氫來源,以欲提供過氧化氫0.01%至1%;或0.01%至0.5%;或0.05%至0.3%;或0.05%至0.2%;或約0.1%之用量存在,以該口腔護理組成物的重量計。
1.2任何前述組成物,其中該過氧二硫酸鹽係以1%至8%;或3%至8%;或5%至8%;或約5%或6%或7%之用量存在,以該口腔護理組成物的重量計。
1.3任何前述組成物,其中該過氧化物為過氧化氫或過氧化氫來源,以欲提供過氧化氫於0.01%至1%;或0.01%至0.5%;或0.05%至0.3%;或0.05%至0.2%;或0.1%之用量存在,以該口腔護理組成物的重量計;及該過氧二硫酸鹽係以5%至7%;或7%之用量存在,以該口腔護理組成物的重量計。
1.4任何前述組成物,其中該組成物的pH為7至8。
1.5任何前述組成物,其中該組成物的pH為4至7。
1.6任何前述組成物,其中該過氧化物為選自過氧化氫及過氧化氫來源,如,過氧化物鹽或錯合物(如,諸如過氧磷酸鹽、過氧碳酸鹽、過硼酸鹽、過氧矽酸鹽、或過硫酸鹽類;例如過氧化鈣、過氧化鋅、過氧化鈉、
過氧磷酸鈣、過硼酸鈉、過氧化碳酸鈉、過氧磷酸鈉、過硫酸鉀、過氧化脲、或過氧化氫交聯的聚乙烯吡咯啶酮錯合物。
1.7任何前述組成物,其中該過氧化物為過氧化氫,及該過氧二硫酸鹽為過氧二硫酸鈉。
1.8任何前述組成物,其中該組成物包含:一或多種保濕劑;一或多種增稠劑;一或多種磨料;一或多種氟的來源;及一或多種清潔劑或界面活性劑。
1.9任何前述組成物,其中該組成物包含:0%至23%用量之聚乙二醇;0%至32%用量之甘油(99.0%至101.0%);1%至40%用量之丙二醇;1%至10%用量之聚乙二醇/聚丙二醇116/66共聚物;1%至10%用量之聚乙烯吡咯啶酮;5%至30%用量之焦磷酸鈣;0.1%至5%用量之矽石,例如燻矽石;1%至3%用量之月桂基硫酸鈉;及0%至3%用量之焦磷酸四鈉,以該組成物的重量計。
1.10任何前述組成物,另包含0.01%至0.05%用量之丁基化的羥基甲苯,以該組成物的重量計。
1.11任何前述組成物,其中該組成物包含0.05%至0.15%,如,約0.1%用量之過氧化氫,以該組成物的重量計。
1.12任何前述組成物,其中該組成物包含6%至9%,如,5%至8%,如,
約7%,或約8%用量之過氧二硫酸鈉,以該組成物的重量計。
1.13任何前述組成物,其中該組成物包含於0.1%用量之過氧化氫,以該組成物的重量計,及約7%用量之過氧二硫酸鹽,以該組成物的重量計。
於另一具體實施,本發明另提供一種用於美白牙齒之方法,包含使牙齒與根據組成物1等等的任一口腔護理組成物接觸。
於另一具體實施,本發明另提供一種漂白系統之用途,該系統包含過氧化氫及/或過氧化氫來源及過氧二硫酸鹽,如,過氧二硫酸鈉,其中過氧二硫酸鹽對過氧化物之比例為10:1至100:1,以重量計,如,25:1至75:1,如,50:1至60:1,以重量計;係用於如,根據組成物1等等之任一口腔護理組成物之製造。
下述實施例係為進一步說明本發明之本質,而了解的是本發明不侷限至其。本文及隨附申請專利範圍之所有用量及比例係指以重量計,除非另有指示。
實施例1-牙劑調配物
PDS被調配成一具有0.1%HP之商業用牙膏。一典型組成物示於表1。
實施例2-體外刷牙試驗
使用刷牙機器在一牛牙齒上進行一體外刷牙試驗(in vitro brushing test)。該牛牙齒的美白度使用一得自MHT Optic Research,AG,Italy之Spectroshade測得。污斑的牛牙齒首先被潔牙(prophied)至具有L*值於60至65之內。使用DI水將該牙劑製成1:1漿液。將該潔牙的牛牙齒鑲入在一盤中的模塑黏土(molding clay)中,該盤可被組裝於一刷牙機器中。該牙齒使用該牙劑漿液以120次(stroke)/分鐘在250公克重負荷下刷牙2分鐘。在各刷牙循環之後使用該Spectroshade測定該牙齒之美白度,L*a*b*。計算該美白
度指數,W,為,及ΔW(與基線W相比)用以紀錄在
刷牙後美白度之變化。在牙齒的美白度上大變化反映在ΔW之更負值。
實施例3-牙劑之功效
三種牙粉,全部含有0.1% HP,使用表1之具不同負荷的PDS(3.5%PDS,7.0%PDS及14.0%PDS)之調配物製成。該刷牙試驗使用這些牙劑進行總共14個循環,對照於該含有0.1% HP而沒有PDS之控制組牙劑。在各個刷牙循環之後計算ΔW。該結果顯示於表2。
全部三個原型(prototype)牙劑表現比該0.1%HP控制組更好,證明該HP與PDS之雙成分漂白系統改善了0.1%HP調配物之美白功效。
該結果還顯示超出7.0%PDS劑量,該美白功效不會進一步增強,而實際上是下降。
測定用於牙刷試驗的1:1牙劑漿液之pH值。結果列示於表3。
由表3之數據可看出,牙劑漿液之pH隨著增加的PDS負荷而降低。當pH下降到7.2至7.3時,該HP之功效受到阻礙。在彼pH以下,條件不利於HP功效。然而,PDS在接近彼pH範圍預期能維持它的美白功效,及在較低pH條件下,i.e.,pH 6左右,表現最好。
還觀察到0.1% HP及14.0% PDS之表現劣於0.1% HP及7.0% PDS之表現。依此,較佳的是本發明之雙成分漂白系統含有7%或以下的PDS,當該系統含有0.1% HP時。
該過氧二硫酸鹽之重量百分率為約80重量%的過氧二硫酸鈉。因此,對一7.0%的PDS及0.1%HP之調配物,過氧二硫酸鹽對過氧化氫
之比例為約56:1,及對一3.5% PDS及0.1% HP之調配物,該比例為約28:1。
最適的雙成分漂白系統含有7.0%的PDS及0.1%HP,因此,過氧二硫酸鹽對過氧化氫之比例為約56:1。
當本發明已參照具體實施敘述時,將了解的是此項技術領域熟悉者可於之中在不偏離本發明範疇下,如隨附申請專利範圍所界定者,作各種修飾及變化。
Claims (16)
- 一種用於口腔護理組成物之漂白系統,包含過氧化氫或過氧化氫來源及過氧二硫酸鹽,其中過氧二硫酸鹽對過氧化物之比例為10:1至100:1,以重量計。
- 一種包含申請專利範圍第1項之漂白系統之口腔護理組成物。
- 如申請專利範圍第2項之口腔護理組成物,其中該組成物為牙膏。
- 如任一項前述申請專利範圍之口腔護理組成物,其中該過氧化氫係以0.01%至1%之用量存在,以該口腔護理組成物的重量計。
- 如任一項前述申請專利範圍之口腔護理組成物,其中該過氧二硫酸鹽係以1%至25%之用量存在,以該口腔護理組成物的重量計。
- 如任一項前述申請專利範圍之口腔護理組成物,其中該過氧化物係以0.5%至0.2%;或0.1%之用量存在,以該口腔護理組成物的重量計;及該過氧二硫酸鹽係以5%至7%;或7%之用量存在,以該口腔護理組成物的重量計。
- 如任一項前述申請專利範圍之口腔護理組成物,其中該組成物的pH為4至8。
- 如任一項前述申請專利範圍之口腔護理組成物,其中該過氧化物為過氧 化氫,及該過氧二硫酸鹽為過氧二硫酸鈉。
- 如任一項前述申請專利範圍之口腔護理組成物,其中該組成物包含:一或多種保濕劑;一或多種增稠劑;一或多種磨料;一或多種氟化物的來源;及一或多種清潔劑或界面活性劑。
- 如任一項前述申請專利範圍之口腔護理組成物,其中該組成物包含:於0%至23%用量之聚乙二醇;於0%至32%用量之甘油(99.0%至101.0%);於1%至40%用量之丙二醇;於1%至10%用量之聚乙二醇/聚丙二醇116/66共聚物;於0.5%至10%用量之聚乙烯吡咯啶酮;於5%至30%用量之焦磷酸鈣;於0.1%至5%用量之矽石,例如燻矽石;於1%至3%用量之月桂基硫酸鈉;及於0%至3%用量之焦磷酸四鈉,以該組成物的重量計。
- 如申請專利範圍第10項之口腔護理組成物,另包含0.01%至0.05%用量之丁基化的羥基甲苯,以該組成物的重量計。
- 如任一項前述申請專利範圍之口腔護理組成物,其中該組成物包含0.05%至0.15%用量之過氧化氫,以該組成物的重量計。
- 如任一項前述申請專利範圍之口腔護理組成物,其中該組成物包含6%至9%用量之過氧二硫酸鈉,以該組成物的重量計。
- 如任一項前述申請專利範圍之口腔護理組成物,另包含一或多種選自甜味劑、調味劑及著色劑之佐劑。
- 一種用於美白牙齒之方法,包含使牙齒與根據任一項前述申請專利範圍之口腔護理組成物接觸。
- 一種根據申請專利範圍第1項之漂白系統之用途,係用於根據申請專利範圍第2至15項中任一項之口腔護理組成物之製造。
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| US10716742B2 (en) | 2016-11-16 | 2020-07-21 | Colgate-Palmolive Company | Oral care composition |
| EP3532021B1 (en) * | 2016-11-16 | 2023-06-07 | Colgate-Palmolive Company | Anhydrous oral care composition |
| US10758462B2 (en) | 2016-11-16 | 2020-09-01 | Colgate-Palmolive Company | Oral care composition |
| WO2018111704A1 (en) | 2016-12-14 | 2018-06-21 | Colgate-Palmolive Company | Aluminum-free antiperspirant/deodorant compositions |
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| WO2000009079A1 (en) * | 1998-08-11 | 2000-02-24 | Mclaughlin Gerald G | Methods and compositions for whitening teeth |
| WO2003017961A1 (en) * | 2001-08-24 | 2003-03-06 | Sasson Joseph A | Antimicrobial oral composition and method of use |
| AU2005209271A1 (en) * | 2004-01-26 | 2005-08-11 | Colgate-Palmolive Company | Dental-bleaching compositions and methods with reduced peroxide concentration |
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| AU2013406828B2 (en) | 2017-03-09 |
| IL245642A0 (en) | 2016-06-30 |
| AR098586A1 (es) | 2016-06-01 |
| MX362099B (es) | 2019-01-07 |
| CA2926374A1 (en) | 2015-06-11 |
| MX2016006831A (es) | 2016-08-19 |
| AU2013406828A1 (en) | 2016-05-26 |
| CN105792896B (zh) | 2019-08-13 |
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