Clear dentifrice
US4036949A · kind A · utility
16Cited by
1References
11Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Sep 8, 1975 |
| Grant date | Jul 19, 1977 |
| Priority date | — |
| Expiry date | Sep 8, 1995 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61K2800/262
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
Visually clear dentifrice comprising a water-insoluble aluminosilicate sodium salt complex in which the proportion of alumina is up to 3.3% by weight and in which the mole ratio of silica to alumina is at least about 45:1, as a polishing agent having a refractive index of about 1.44-1.47 and a gel vehicle for said polishing agent having about the same refractive index as said polishing agent, said polishing agent being substantially invisible in said gel vehicle.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.