| 摘要 |
The invention relates to particles with an opalescent effect, which have a particle size in the range from 5 mum to 5000 mum, comprising monodisperse spheres having a diameter of 50 nm to 2 mum with a standard deviation of less than 5% in a packed and regularly ordered structure which is three-dimensional in terms of domains and is mechanically stabilized by physical or chemical modification. |
