Coated perlite flakes
US8585818B1 · kind B1 · utility
Assignee
Inventor
Key dates
| Filing date | Mar 14, 2013 |
| Grant date | Nov 19, 2013 |
| Priority date | — |
| Expiry date | Mar 14, 2033 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC09C2200/306
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
The present disclosure relates to a method of making coated perlite flakes comprises: (i) providing perlite flakes; (ii) applying a layer of tin oxide on the perlite flakes to obtain tin oxide coated perlite flakes; (iii) applying a layer titanium dioxide on the tin oxide coated perlite flakes obtained in step (ii) to obtain titanium dioxide and tin oxide coated perlite flakes; and (iv) applying a layer of iron oxide to the titanium dioxide and tin oxide coated perlite flakes to obtain the coated perlite flakes. The present disclosure also relates to coated perlite flakes comprising: perlite flakes with layer of tin oxide, then a layer of titanium dioxide, and then a layer of iron oxide.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.