摘要:
The invention generally relates to methods of embedding secondary particles onto the surface of a primary particle by means of a polymeric material and in particular to methods of making retroreflective elements.
摘要:
The present invention relates to microspheres (i.e., beads) having a high index of refraction. The invention also relates to retroreflective articles, and in particular pavement markings, comprising such microspheres.
摘要:
The invention relates to retroreflective elements comprising a bonded resin core and microspheres at least partially embedded into the surface of the core.