Amorphous precipitated silica abrasive
US5747003A · kind A · utility
14Cited by
5References
24Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 22, 1995 |
| Grant date | May 5, 1998 |
| Priority date | — |
| Expiry date | Mar 22, 2015 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC01P2006/19
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
A statistically large population of particles of amorphous precipitated silica comprising pigmentary phase particles and glassy phase particles and having a glassy phase fraction in the range of from 0.3 to 30 area percent is useful as an abrasive for dentifrice compositions, especially toothpaste.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.