WATERPROOFING ASPHALT-BASED CARPET AND PROCESS OF MAKING THE SAME

The invention relates to waterproofing carpet based on asphalt, polymers and mineral filling, and to a process of making the same. According to the invention, the carpet is made of a mixture consisting of asphalt or vacuum residue, lower polymers of high density polyethylene, binary or ternary copolymer, polyethylene waste, mineral fillings and atactic polypropylene. According to the invention, the process consists in mixing asphalt with lower ethylene polymers, copolymer, polyethylene waste and atactic polypropylene, at a temperature of 160...180 degree C for 30...120 min, then in pressing or calendering the resulting mixture, thereby obtaining a product with waterproofing characteristics. Inventia se refera la un covor hidroizolant pe baza de bitum, polimeri, umplutura minerala, si la un procedeu de realizare a acestuia. Covorul conform inventiei este format dintr-un amestec constituit din bitum sau reziduu de vid, polimeri inferiori ai polietilenei de inalta densitate, copolimer, binar sau ternar, deseuri de polietilena, umpluturi minerale si polipropilena atactica. Procedeul conform inventiei consta in aceea ca se amesteca bitum cu polimeri inferiori ai etilenei, copolimer, deseuri de polietilena si polipropilena atactica, la o temperatura de 160...180 degree C, timp de 30...120 min, dupa care amestecul rezultat se preseaza sau se calandreaza, rezultand un produs cu caracteristici hidroizolante.