Fibre reinforced polymer compositions and process and apparatus for production thereof

Abstract From the Canadian patent

Fibrous network structures are produced within liquid polymer resins by passing the fibre-containing resin along a channel having a plurality of sets of flow modifying elements which establish a regulated succession of velocity profiles for the principal flow direction and the two directions perpendicular thereto. The individual velocity profiles persist over distances which are small compared to the channel dimension over which they are established and are such that there is substantially no net deviation from the principal flow direction. The velocity profiles superimpose on each other to cause rotation and sliding of the fibres so that a coherent network structure is built up which …