Coating comprising multipopulation fumed silica particles
US8853317B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 28, 2011 |
| Grant date | Oct 7, 2014 |
| Priority date | — |
| Expiry date | Nov 6, 2032 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC01P2006/12
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
The invention provides a coating comprising fumed silica particles, wherein the fumed silica particles comprise aggregates of primary particles, wherein (a) the primary particles have a bimodal or multimodal particle size distribution representing populations of particles having at least a smallest average primary particle size and a largest average primary particle size, and wherein primary particles having a smaller average primary particle size are attached to primary particles having a larger average primary particle size, or (b) the aggregates have a bi-modal or multi-modal aggregate size distribution, and a carrier. The invention additionally provides a method for preparing a coated article comprising the coating.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.