US Patent 7631464 Polymeric insulated glazing unit with molded frame

A skylight is formed with a pair of plastic panels having a similarly sized outer peripheral flange and a central region transparent to visible light, aligned in a stacked orientation with the peripheral flanges overlying one another and defining an enclosed central region in-between. Elongated two-sided elastic tape seal is interposed between and bonded to the outer peripheral flanges of elastic panels to form a sealed enclosed region. A peripheral frame is formed in situ about the plastic panels from a moldable polymeric material which entraps the peripheral flanges forming a unitary type structure with the elastic two-sided tape preventing intrusion of the moldable polymeric frame material into the enclosed region.