Apparatus, mold and method for producing shaped articles from a UV-curable composition

摘要

A mold for molding a UV cured article in an inner volume thereof, the mold including a mold wall surrounding the inner volume, the mold including a UV-transparent polymer and UV radiation deflecting particles immersed in or adhered to a surface of the mold wall. Also provided is an apparatus including the mold and a process for molding a UV cured article.

主权项

1. A mold for molding a UV cured article in an inner volume thereof, the mold comprising a mold wall surrounding the inner volume, the mold comprising a UV-transparent polymer and UV radiation deflecting particles immersed in or adhered to a surface of the mold wall,
wherein said UV-transparent polymer forms a matrix plastic and the UV radiation deflecting particles comprise plastic particles, which have a core-shell morphology and which are distributed in the matrix plastic; wherein the core of the plastic particles is crosslinked, and the shell of the plastic particles is at least partly bonded to the core of the plastic particles and the shell of the plastic particles is miscible with the matrix plastic; wherein the refractive index of the core of the plastic particles differs by 0.06 to 0.4 from the refractive index of the matrix plastic; wherein the diameter of the core of the plastic particles is less than 0.2 μm, and wherein a proportion of the plastic particles, based on the matrix plastic, is 0.0001 to 5% by weight.