Process for the production of aromatic polyester resins starting from resins with an IV from 0.1 to 0.4 dl/g comprising the steps of blending the resin with a dianhydride of a tetracarboxylic acid, extruding the resin under the form of a strand, cooling the strand or the chips obtainable by cutting the...http://www.google.es/patents/US5902864?utm_source=gb-gplus-sharePatente US5902864 - Process for the production of polyester resins
