Method for the recycling of polyvinyl butyral based on the obtaining of recycled polyvinyl butyral (PVB) from laminated glass which is then shattered and the polyvinyl butyral (PVB) is separated. The sheet obtained is cut Into pieces, then proceeding to a surface cleaning process eliminating the dirt and foreign matter, which comprises: a first polyvinyl butyral (PVB) purification stage by way of a chemical treatment by means of a reagent; a subsequent final chemical treatment stage supplementary to the first stage by means of a reagent, the purification treatment being carried out on the polyvinyl butyral (PVB) in solid state and obtaining totally purified polyvinyl butyral read to be used again in the manufacture of laminated glass.
申请公布号
EP2308919(A1)
申请公布日期
2011.04.13
申请号
EP20080750410
申请日期
2008.03.27
申请人
L'UREDERRA, FUNDACION PARA EL DESARROLLO TECNOLOGICO Y SOCIAL