Laminated safety glass
AssigneeAsahi Glass Company, Limited
InventorsHiroyuki Watanabe, Hiroshi Washita, Toshio Ichiki
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Abstract
Transparent or translucent laminated safety glass having an at least two-layered structure, in which one outer layer is a relatively soft synthetic resin layer and the other outer layer is a hard substrate layer, characterized in that said relatively soft synthetic resin layer comprises: a surface layer of a reformed polyurethane type thermoplastic resin obtained by impregnating a polymerizable compound containing a polymerizable unsaturated group into a polyurethane type thermoplastic resin and polymerizing the compound; and an inner layer of a polyurethane type thermoplastic resin which is continuous or non-continuous with said surface layer.
Claims15
Transparent or translucent laminated safety glass having an at least two-layered structure, in which one outer layer is a relatively soft synthetic resin layer and the other outer layer is a hard substrate layer, said relatively soft synthetic resin layer comprising:
- a surface layer of a reformed polyurethane type thermoplastic resin obtained by impregnating a polymerizable compound containing a polymerizable unsaturated group into a polyurethane type thermoplastic resin and polymerizing the compound;
- and an inner layer of a polyurethane type thermoplastic resin which is continuous or non-continuous with said surface layer.
A method for manufacturing transparent or translucent laminated safety glass having an at least two-layered structure, in which one outer layer is a relatively soft synthetic rsin layer and the other outer layer is a hard substrate layer, wherein said relatively soft synthetic resin layer is formed by impregnating a polymerizable compound containing a polymerizable unsaturated group into one surface of a polyurethane type thermoplastic resin constituting the laminated safety glass, and polymerizing said compound.
A method for manufacturing transparent or translucent laminated safety glass having an at least two-layered structure, in which one outer layer is a relatively soft synthetic resin layer and the other outer layer is a hard substrate layer, wherein a polymerizable compound having a polymerizable unsaturated group is impregnated into one side of a sheet or film of a polyurethane type thermoplastic resin, and then polymerized, and that said sheet or film is then laminated on said hard substrate layer so that the other side, which is not reformed, faces said substrate.
Dependencies are inferred from the claim text.