BITUMINOUS COMPOSITIONS CONTAINING THERMOPLASTIC POLYMER RESIDUES WITH POLYURETHANE FORMS AND THERMOSET RESINS AND PROCESS FOR THEIR FABRICATION

摘要

specific disclosure: the invention relates to bituminous compositions obtained by incorporating residues from waste thermoplastic polymers, including motor vehicles,with thermodurcies polyurethane foam and resins, as well as their method of preparation.the process involves mixing the polymeric residues previously crushed so as to obtain a mean particle size of less than 10 mm with bitumen or asphalt is melted.the mixture is stirred at a temperature of between 150 and 300.degree.c, the presence of crushed particles of polyurethane foam and resins thermodurcies contributing to increase the speed of disssolution polymers.preferably, a catalyst is added and / or a reagent for a coupling reaction between polymers and certain components of bitumen or asphalt.this provides improved properties to the bituminous mixture. the bituminous compositions according to the invention can be advantageously used for the coating of solid materials.