Treated inorganic solids
US5837049A · kind A · utility
32Cited by
5References
19Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 23, 1997 |
| Grant date | Nov 17, 1998 |
| Priority date | — |
| Expiry date | Oct 23, 2017 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC01P2006/80
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
A treated inorganic solid comprises particulate inorganic material the particles of which are coated with an alkylphosphonic acid or ester thereof, the alkylphosphonic acid containing 6 to 22 carbon atoms. The particulate material is usually a pigment, extender or filler which is treated by mixing with the alkylphosphonic acid or ester for example in an aqueous dispersion or during a process step such as milling. The treated inorganic solid is particularly useful for preparing polymer compositions such as masterbatches.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.