Dentifrice abrasives and compositions
US5225177A · kind A · utility
16Cited by
13References
2Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 19, 1990 |
| Grant date | Jul 6, 1993 |
| Priority date | — |
| Expiry date | Jan 19, 2010 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC01P2006/90
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
Novel precipitated silicon dioxide abrasive compositions which can be incorporated into therapeutic toothpaste compositions containing soluble fluoride salts are disclosed. The abrasives comprise low structure, high fluoride compatible amorphous precipitated silicon dioxides (silicas) having a controlled refractive index for use in low water clear gel dentifrice applications. Also provided are methods for preparation of the novel silicon dioxide abrasives and resulting toothpaste formulations containing such abrasives.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.