Shaped articles with homogeneous, evenly distributed cavities, useful e.g. in electro-optical devices, obtained using core-shell particles having thermoplastic matrix shell and solid core

摘要

The use of core-shell particles (I) is claimed in the production of shaped articles (A) with homogeneous, evenly distributed cavities, where: the shell of (I) forms a matrix and shows thermoplastic properties; the core is solid and has a monodisperse size distribution; and the shell is bonded to the core via an intermediate layer. Independent claims are included for: (1) the preparation of (A), by processing (I) under mechanical force at elevated pressure to give (A) (specifically films), then removing the cores; and (2) shaped articles (A') with homogeneous, evenly distributed cavities embedded in a matrix with thermoplastic or thermosetting (preferably thermoplastic) properties.