| 发明名称 | Adhesive dental bleaching compositions containing polyvinylpyrrolidone | ||
| 摘要 | A dental bleaching composition comprises a dental bleaching agent, polyvinylpyrrolidone, and at least 0.1% water. The bleaching composition may include a liquid component, flavoring agent, basic substance, and/or desensitizing agent as desired. Polyvinylpyrrolidone avoids acid etching and chelation of teeth that were problematic in bleaches using carbomer as a thickener. A delivery system for delivering the bleaching composition comprises the aforementioned dental bleaching composition in combination with a moisture-resistant barrier layer such as a dental tray or a flexible strip of material. | ||
| 申请公布号 | US9265712(B2) | 申请公布日期 | 2016.02.23 |
| 申请号 | US201414492888 | 申请日期 | 2014.09.22 |
| 申请人 | Ultradent Products, Inc. | 发明人 | Chen Tianming |
| 分类号 | A61K8/00;A61Q11/00;A61K8/22;A61K8/81;A61K8/02;A61K8/04;A61K8/19;A61K8/42 | 主分类号 | A61K8/00 |
| 代理机构 | Workman Nydegger | 代理人 | Workman Nydegger |
| 主权项 | 1. An adhesive one-part dental bleaching composition for bleaching a person's teeth, comprising: a dental bleaching agent selected from the group consisting of hydrogen peroxide, carbamide peroxide, sodium perborate, sodium percarbonate, and combinations thereof; water in an amount of 3% to 50% by weight of said dental bleaching composition; and polyvinylpyrrolidone homopolymer included in an amount of at least about 10% by weight of said bleaching composition in order for said dental bleaching composition to adhere to teeth for a time required to carry out a bleaching process, said polyvinylpyrrolidone homopolymer having repeating units with the following chemical structure: | ||
| 地址 | South Jordan UT US | ||