METHOD FOR PREPARING REINFORCED MULTIGRADE BITUMEN/POLYMER COMPOSITIONS, AND USE OF THE RESULTING COMPOSITIONS FOR PRODUCING BITUMEN/POLYMER BINDERS FOR SURFACE COATINGS

摘要

bitumen polymer compositions and plasticity range expandedproduced by contact between 100 and 230)under agitation, a bitumen or bitumen with a cross linkable elastomer mixturethe sulfur and a sulfur donor for coupling agentto produce a cross-linked polymer composition and asphalt, and includingthe composition and 230u00b0c maintained between 100 andagitation, an adjuvant selected from polyphosphoric acid, acid.acidic formula r - (co) - so3h, where t = 0 or 1, and r is amonovalent hydrocarbyl radical in mixtures of two types;among them, or acid and sulfuric acid, and nowthe reaction mixture obtained from 100 degrees c and 230 degrees, andagitation for at least 10 minutes. the bitumen polymer compositionscan be used directly or after dilution, for bindersthe realization of surface coatings bituminous roadcoating and coating of the sealant.