Titanium dioxide product
US11130866B2 · kind B2 · utility
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Key dates
| Filing date | Jun 9, 2017 |
| Grant date | Sep 28, 2021 |
| Priority date | — |
| Expiry date | Nov 2, 2037 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08K2003/2241
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
A pigmentary particulate material selected from the group consisting of titanium dioxide, doped titanium dioxide, and a mixture of titanium dioxide and doped titanium dioxide. The pigmentary particulate material has a mean crystal size of from 0.3 to 0.5 microns, a crystal size distribution such that ≥40 wt.-% of the pigmentary particulate material has a crystal size of from 0.3 to 0.5 microns, and a ratio of a mean particle size to the mean crystal size of ≤1.25.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.