Oral care formulation for the treatment of sensitivity teeth
US6241972A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Feb 19, 1999 |
| Grant date | Jun 5, 2001 |
| Priority date | — |
| Expiry date | Feb 19, 2019 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61Q11/00
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
A desensitizing agent for the cleaning and treatment of sensitive teeth comprising a copolymer having repeating hydrophobic and hydrophilic regions. Preferred examples include polysoaps such as: a monovalent salt of a hydrolyzed copolymer of an .alpha.-olefin and maleic anhydride:, e.g., structually represented as: ##STR1## The copolymer forms micelles in aqueous dispersions such as toothpaste and mouthwash formulations. When applied thereon by brushing or rinsing or other method of application, the copolymers occlude the tubules and seal them off from the external oral environment and thereby alleviate the pain caused by the tooth's sensitivity.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.