Methods for Manufacturing Articles Comprising Photochromic Film

摘要

The present invention relates to methods of manufacturing articles comprising photochromic film, such as eyeshields, faceshields and lenses. Specifically, the methods of the present invention apply photochromic material to optically transparent thermoplastic material. Preferably, photochromic material is adhered to optically transparent thermoplastic material, such as polycarbonate, in a hot molding process.

主权项

1. A method of making an article comprising the steps of:
providing a mold having an internal surface; placing an amount of photochromic film within the mold on the internal surface; closing the mold so that the photochromic film is disposed within the mold on the internal surface injecting melted material into the mold to form a shaped article; and cooling the shaped article, wherein the shaped article comprises a photochromic film bonded thereto.