Process for making polarized material and polarized products

Abstract From the Canadian patent

This invention relates to a process for making polarized material by forming a solution of a material capable of being polarized with a polarization solvent which can be removed by evaporation. The material in solution is poled to provide a polarized material which is free or substantially free of mechanically-induced orientation and which polarization is essentially stable up to the crystal melting point of the polar crystals or to softening point of the polarized material if non-crystal line. The polarization solvent can be removed from the solution as desired either to a reduced level or completely such as during, poling or before or after poling.