首页>
外国专利>
transparent polyurethane layer, with resistance to scratching and wearing away and with energy absorption and dugafvisende properties, method for manufacture thereof, and rudeglas,using such a layer
transparent polyurethane layer, with resistance to scratching and wearing away and with energy absorption and dugafvisende properties, method for manufacture thereof, and rudeglas,using such a layer
The invention relates to a layer of polyurethane of high optical quality exhibiting the properties of an energy absorber and of resistance to scratching and abrasion, and it is characterised in that it additionally exhibits improved misting resistance properties, the polyol component employed to form the layer comprising a long polyol containing ethylene oxide blocks. …??The polyurethane layer is employed as an outer layer in safety windows.
展开▼