Anti-fouling marine paints containing microencapsulated anti-fouling agents and the process of microencapsulation
US4253877A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Aug 2, 1979 |
| Grant date | Mar 3, 1981 |
| Priority date | — |
| Expiry date | Aug 2, 1999 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/2989
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
A process for microencapsulating water-immiscible chemicals is disclosed which comprises mixing a colloidal solution of gelatin Type A and gum acacia with an emulsion or slurry of the water-immiscible chemical, both of which are prepared and mixed at a temperature above about 50.degree. C., and allowing the mixture to cool so that the droplets or particles of water-immiscible chemical are encapsulated with a macromolecular membrane of a complex coacervate of gelatin and gum acacia. Anti-fouling marine paints capable of sustained release of anti-fouling agent are prepared by adding microcapsules of anti-fouling agents to a marine paint vehicle.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.