Sulfur containing silica particle
US8025726B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 8, 2010 |
| Grant date | Sep 27, 2011 |
| Priority date | — |
| Expiry date | Apr 8, 2030 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08K3/36
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
A silica containing composition is disclosed. The composition comprises a compound having the following formula: (SiO2)x(OH)yMzSaF: wherein M is at least one of the following metal or metalloid cations: boron, magnesium, aluminum, calcium, titanium, vanadium, manganese, iron, cobalt, nickel, copper, zinc, zirconium, molybdenum, palladium, silver, cadmium, tin, platinum, gold, and bismuth; wherein S is a sulfur-based species selected from at least one of the following: sulfide salts, dithiocarbamates, polymer-based dithiocarbamates, and polysulfide salts; wherein F optionally exists and said F is at least one of the following: a functionalized organosilane, a sulfur-containing organosilane, an amine-containing organosilane, and an alkyl-containing organosilane at a surface area coverage of 0.01-100%; and wherein the molar ratio of y/x is equal to 0.01-0.5, the molar ratio of x/z is equal to 3-300, and the molar ratio of a/z is 1-5.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.