Source: http://www.google.se/patents/US5849268?hl=sv
Timestamp: 2013-05-25 05:52:10
Document Index: 211534643

Matched Legal Cases: ['Application No. 08', 'Application No. 08', 'Application No. 08', 'Application No. 08', 'Application No. 08', 'Application No. 08']

Patent US5849268 - Oral compositions - Google PatentS�k Bilder Kartor Play YouTube Nyheter Gmail Drive Mer » Avancerad patents�kning | Webbhistorik | Logga in Avancerad patents�kning PatentOral compositions, such as oral gels, toothpastes and mouthwashes, containing a chelating agent and a hydrophobic anionic surfactant....http://www.google.se/patents/US5849268?utm_source=gb-gplus-sharePatent US5849268 - Oral compositions PublikationsnummerUS5849268 ATyp av kung�relseBeviljande Ans�kningsnummer08/712,860 Publiceringsdatum15 dec 1998 Registreringsdatum12 sep 1996 Prioritetsdatum13 maj 1994�ven publicerat somUS5578294US5620679WO1995031174A1 UppfinnareMichael Frederick Lukacovic Ursprunglig innehavareThe Procter & Gamble Company USA-klassificering424/52424/49424/55 Internationell klassificeringA61K8/365A61Q11/00A61K8/46A61K8/44 Kooperativ klassningA61Q11/00A61K8/466A61K2800/51A61K8/365A61K8/44 Europeisk klassificeringA61K 8/46FA61Q 11/00A61K 8/365A61K 8/44H�nvisningarCitat fr�n patent (82)Citat fr�n andra k�llor (6) H�nvisningar finns i f�ljande patent (2)Externa l�nkarUSPTO �verl�telse av �gander�tt till patent som har registrerats av USPTO EspacenetOral compositionsUS 5849268 A Sammanfattning Oral compositions, such as oral gels, toothpastes and mouthwashes, containing a chelating agent and a hydrophobic anionic surfactant.
What is claimed is: 1. An oral composition providing improved oral cleansing with reduced desquamation comprising: a. from about 0.1% to about 2.5% of a taurate surfactant; b. from about 0.1% to about 2.5% of a chelating agent selected from the group consisting of tartaric acid and pharmaceutically-acceptable salts thereof, citric acid and alkali metal citrates, and mixtures thereof; c. an amphoteric betaine surfactant selected from the group consisting of decylbetaine cocobetaine, myristylbetaine palmitylbetaine, laurylbetaine cetylbetaine stearylbetaine, cocobetaine/cocamine oxide, cocamidoethyl betaine, cocoamidopropyl betaine, cocoamidopropyl hydroxysultaine, lauramidopropyl betaine, rincinoleicamidobetaine and mixtures thereof; and d. a fluoride ion source selected from the group consisting of sodium fluoride stannous fluoride, sodium monofluorophosphate, potassium fluoride and mixtures thereof; wherein the level of a. and b. does not exceed 4.0% by weight of the total composition and wherein the composition has a pH of from about 6.5 to about 9.5 and wherein said composition is free of enzymes.
Other optional chelating agents can be used. Preferably these chelating agents have a calcium binding constant of about 10.sup.1 to 10.sup.5 provide improved cleaning with reduced plaque and calculus formation. Another group of agents suitable for use as chelating agents in the present invention are the soluble pyrophosphates. The pyrophosphate salts used in the present compositions can be any of the alkali metal pyrophosphate salts. Specific salts include tetra alkali metal pyrophosphate, dialkali metal diacid pyrophosphate, trialkali metal monoacid pyrophosphate and mixtures thereof, wherein the alkali metals are preferably sodium or potassium. The salts are useful in both their hydrated and unhydrated forms. An effective amount of pyrophosphate salt useful in the present composition is generally enough to provide at least 1.0% pyrophosphate ion, preferably from about 1.5% to about 6%, more preferably from about 3.5% to about 6% of such ions. It is to be appreciated that the level of pyrophosphate ions is that capable of being provided to the composition (i.e., the theoretical amount at an appropriate pH) and that pyrophosphate forms other than P.sub.2 O.sub.7 -4 (e.g., (HP.sub.2 O.sub.7 -3)) may be present when a final product pH is established.
It is common to have an additional water-soluble fluoride compound present in dentifrices and other oral compositions in an amount sufficient to give a fluoride ion concentration in the composition at 25 when it is used of from about 0.0025% to about 5.0% by weight, preferably from about 0.005% to about 2.0% by weight, to provide additional anticaries effectiveness. A wide variety of fluoride ion-yielding materials can be employed as sources of soluble fluoride in the present compositions. Examples of suitable fluoride ion-yielding materials are found in U.S. Pat. No. 3,535,421, Oct. 20, 1970 to Briner et al. and U.S. Pat. No. 3,678,154, Jul. 18, 1972 to Widder et al., both being incorporated herein by refererence. Representative fluoride ion sources include: stannous fluoride, sodium fluoride, potassium fluoride, sodium monofluorophosphate and many others. Stannous fluoride and sodium fluoride are particularly preferred, as well as mixtures thereof.
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