Colloidal calcium hydroxide, its preparation and uses
US5756432A · kind A · utility
2Cited by
11References
29Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 6, 1995 |
| Grant date | May 26, 1998 |
| Priority date | — |
| Expiry date | Jul 6, 2015 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S516/927
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
Novel colloidal products are described, containing calcium hydroxide in the center of micelles which are stabilised in an organic medium by a shell of a surfactant, in a reversed micelle. The products are obtained by reacting calcium oxide CaO, calcium hydride CaH.sub.2 or calcium metal with water in an organic medium in the present of a surfactant such as an alkine-earth or alkali metal alkylaryl sulphonate. They are used mainly as synthesis intermediates in reactions requiring lime to be introduced into an organic medium, or as detergent additives in lubricating oils.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.