Methods of making combined titanium dioxide and calcium carbonate and opaque paper containing the resulting combination
US4028173A · kind A · utility
17Cited by
1References
9Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Aug 15, 1975 |
| Grant date | Jun 7, 1977 |
| Priority date | — |
| Expiry date | Aug 15, 1995 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC01P2006/60
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
Method of making TiO.sub.2 --CaCO.sub.3 combinations without involving a chemical reaction, said combinations, containing up to 50% CaCO.sub.3 in the combination, having the same scattering coefficient in paper as 100% TiO.sub.2 and method of making opaque paper containing the resulting combination.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.