| abstract |
The backsheet comprises i) an inner layer comprising a polyolefin resin; ii) a polypropylene resin, a blend of polypropylene resin and maleic anhydride grafted polypropylene (MAH-g-PP), or a polypropylene resin / MAH-g-PP multilayer structure. A core layer comprising; iii) a maleic anhydride grafted polyvinylidene fluoride (MAH-g-PVDF), a blend of polyvinylidene fluoride (PVDF) and MAH-g-PVDF, or a PVDF / MAH-g-PVDF multilayer structure, An outer layer comprising: iv) a first tie layer present between the core layer and the outer layer; and v) an optionally used second tie layer present between the core layer and the inner layer. Includes extruded multilayer sheets. |