Method for microencapsulation of basic solutions
US5091122A · kind A · utility
2Cited by
11References
10Claims
0Family size
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Inventor
Key dates
| Filing date | Mar 24, 1988 |
| Grant date | Feb 25, 1992 |
| Priority date | — |
| Expiry date | Mar 24, 2008 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/2987
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A method of preparing microencapsulated basic solutions including the steps of preparing a polymer which is hydrophobic at high pH values, preparing a basic solution, dissolving the polymer in an organic solvent, adding a surfactant to the polymer solution, adding the basic solution to the dissolved polymer, emulsifying the basic solution and dissolved polymer and spray drying the emulsion while stirring the emulsion.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.