Phase stable lead monoxide and process for the production thereof
US5252311A · kind A · utility
Inventors
Key dates
| Filing date | Feb 7, 1992 |
| Grant date | Oct 12, 1993 |
| Priority date | — |
| Expiry date | Feb 7, 2012 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC10M2201/062
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
Phase stable lead monoxide powders are disclosed in which substantially pure free flowing PbO having a crystal phase which is homogeneous, and which phase may be selected from either the litharge or massicot forms, retains such phase homogeneity over extended periods under ambient storage conditions or even under the influence of ultraviolet light. Furthermore, lead monoxide powders and their oxalate precursors whose particles have a plate-like morphology and size which make them ideal for numerous applications are described. These and other compositions, as well as methods for making and utilizing these novel preparations, are included.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.