Abstract: The invention relates to composite materials having an optical effect, comprising at least one moulding which essentially consists of core/shell particles whose shell forms a matrix and whose core is essentially solid and has an essentially monodisperse size distribution, where a difference exists between the refractive indices of the core material and of the shell material, and at least one further material which determines the mechanical properties of the composite, and to a process for the production of the composite materials. The materials according to the invention exhibit a viewing angle-dependent colour effect with freely adjustable mechanical properties.

Abstract: The invention relates to the use of core/shell particles, the core of which essentially comprises a degradable polymer with an essentially mono-disperse size distribution and the shell of which forms a matrix, which can be pyrolysed to give a carbon matrix, for the production of shaped bodies with regularly-arranged cavities and the corresponding shaped bodies.

Abstract: The invention relates to the use of core/shell particles whose shell forms a matrix and whose core is essentially solid and has an essentially monodisperse size distribution and whose shell is bonded to the core via an interlayer and whose shell has thermoplastic properties for the production of mouldings having homogeneous, regularly arranged cavities, to a process for the production of mouldings having homogeneous, regularly arranged cavities, and to the corresponding mouldings.

Abstract: The invention relates to the use of core/shell particles whose shell forms a matrix and whose core is essentially solid and has an essentially monodisperse size distribution as template for the production of inverse opal structures, and to a process for the production of inverse opal-like structures using core/shell particles of this type.

Abstract: The invention relates to composite materials having an optical effect, comprising at least one moulding which essentially consists of core/shell particles whose shell forms a matrix and whose core is essentially solid and has an essentially monodisperse size distribution, where a difference exists between the refractive indices of the core material and of the shell material, and at least one further material which determines the mechanical properties of the composite, and to a process for the production of the composite materials. The materials according to the invention exhibit a viewing angle-dependent colour effect with freely adjustable mechanical properties.

Abstract: The invention relates to moulded bodies having an effect, essentially consisting of core-shell particles comprising a shell which forms a matrix and a core which is essentially solid and has an essentially monodisperse size distribution, the refractive index of the core material being different from that of the shell material. The invention is characterized in that at least one contrast material is stored in the matrix.

Abstract: The invention relates to mouldings having an optical effect which essentially consist of core/shell particles whose shell forms a matrix and whose core is essentially solid and has an essentially monodisperse size distribution, where a difference exists between the refractive indices of the core material and of the shell material. The mouldings are characterised in that they are obtainable by a process in which the core/shell particles are heated to a temperature at which the shell is flowable, and the flowable core/shell particles are subjected to the action of a mechanical force.