SYNTHETIC MULTILAYER OBJECT

摘要

The invention relates to a multilayer axisymmetric object which forms a wall having thickness E and comprises a first resin forming the object structure and constituting at least 80 % of the volume thereof and a second resin forming at least two functional layers which are separately entrapped in the first type of resin. The inventive multilayer structure is characterised in that (a) the functional layers are distributed in the distinct portions of the object, (b) the functional layers form the bodies of rotation centred on the axis of symmetry of the object and (c) the two functional layers are partly superimposed in a direction perpendicular to said wall.