| 20080199519 | Production of Double-or Multi-Layered Microcapsules - The invention relates to a method for production of double- or multi-layered micro-capsules, comprising an inner microcapsule of cross-linked polymers and biological cells and one or more layers of cross-linked polymers without biological cells, which completely enclose(s) the inner microcapsule, whereby, in a first method step, single-layered microcapsules of cross-linked polymers with biological cells are produced and, in at least one further method step, at least one outer layer shell of cross-linked polymer is applied which contains no biological cells. | 08-21-2008 |
