| 简介 |
Biodegradable polymeric optical marker for biodegradable substrates and method for producing same. This invention addresses the synthesis and application of biodegradable polymer doped with rare earth complex to a substrate of material also biodegradable, in order for optical marker, in the form of a base enabling authenticate biodegradable substrates with biodegradable material also [...] with adhesion quality. The application of the material is made in form of biodegradable film on surfaces resulting in a marker invisible optical when excited by ultraviolet light emits a pure color, in the visible radiation. |
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