Stannous salt and sodium tripolyphosphate oral care...

A - Human Necessities – 61 – K

Patent

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Details

A61K 8/81 (2006.01) A61K 8/21 (2006.01) A61K 8/24 (2006.01) A61K 8/25 (2006.01) A61Q 11/00 (2006.01)

Patent

CA 2629812

Oral care compositions containing a stannous salt and sodium tripolyphosphate are provided where stannous tripolyphosphate ionic intermediates comprise less than about 1% of the compositions Tetrasodium pyrophosphate, a methylvinyl ether-maleic anhydride copolymer and/or a silica oral polishing agent may be added for further efficacy. In a single phase blend, the oral care composition may be effectively limited to comprise less than about 10% water. In a dual- phase blend, a mixture having the stannous salt in a first phase and the sodium tripolyphosphate in a second phase may be generated from a dual chamber storage tube (with each phase provided from a separate chamber) immediately prior to dental care usage.

La présente invention concerne des compositions pour soins buccaux contenant un sel stanneux et du tripolyphosphate de sodium. Selon l'invention, les intermédiaires ioniques du tripolyphosphate stanneux constituent moins de 1 % environ des compositions. Du pyrophosphate de tétrasodium, un copolymère d'éther de méthylvinyle-anhydride maléique et/ou un agent de polissage buccal à la silice peuvent être ajoutés pour améliorer l'efficacité. Dans un mélange à une seule phase, la teneur en eau de la composition pour soins buccaux peut être efficacement limitée à moins de 10 % environ. Dans un mélange à deux phases, un mélange contenant le sel stanneux dans une première phase et le tripolyphosphate de sodium dans une seconde phase peut être généré à partir d'un tube de stockage à double chambre (chaque phase provenant d'une chambre séparée) juste avant l'utilisation pour des soins dentaires.

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