Abstract: The present invention is in the field of multiple layer glass panels comprising a polymer sheet having desirable surface properties, and more specifically, the present invention is in the field of multiple layer glass panels comprising poly(vinyl butyral) having a finished surface of relatively low waviness and high roughness disposed in contact with poly(ethylene terephthalate) and/or other poly(vinyl butyral) type layers.

Abstract: The present invention is in the field of multiple layer glass panels comprising a polymer sheet having desirable surface properties, and more specifically, the present invention is in the field of multiple layer glass panels comprising poly(vinyl butyral) having a finished surface of relatively low waviness and high roughness disposed in contact with poly(ethylene terephthalate) and/or other poly(vinyl butyral) type layers.

Abstract: The present invention is in the field of multiple layer glass panels comprising a polymer sheet having desirable surface properties, and more specifically, the present invention is in the field of multiple layer glass panels comprising poly(vinyl butyral) having a finished surface of relatively low waviness and high roughness disposed in contact with poly(ethylene terephthalate) and/or other poly(vinyl butyral) type layers.

Abstract: The present invention provides multiple layer interlayers having a relatively soft inner layer and relatively stiff outer layers that can be laminated without unacceptable optical distortion and used in various multiple layer glass panel type applications. Multiple layer interlayers of the present invention have surface topography that is formed by embossing the exposed surface of the interlayer, or individual layers of the multiple layer interlayer, after formation of the interlayer or layers. The embossing process is carried out under temperature conditions that prevent the transfer of the embossing to inner layers of the interlayer. By precisely controlling the embossing of the interlayer, lamination of the interlayer with a rigid substrate does not lead to unacceptable optical distortion caused by the transfer of the surface topography through outer, stiffer layers into softer, internal layers of the interlayer.

Abstract: The present invention provides multiple layer interlayers having a relatively soft inner layer and relatively stiff outer layers that can be laminated without unacceptable optical distortion and used in various multiple layer glass panel type applications. Multiple layer interlayers of the present invention have surface topography that is formed by embossing the exposed surface of the interlayer, or individual layers of the multiple layer interlayer, after formation of the interlayer or layers. The embossing process is carried out under temperature conditions that prevent the transfer of the embossing to inner layers of the interlayer. By precisely controlling the embossing of the interlayer, lamination of the interlayer with a rigid substrate does not lead to unacceptable optical distortion caused by the transfer of the surface topography through outer, stiffer layers into softer, internal layers of the interlayer.

Abstract: The present invention provides multiple layer interlayers having a relatively soft inner layer and relatively stiff outer layers that can be laminated without unacceptable optical distortion and used in various multiple layer glass panel type applications. Multiple layer interlayers of the present invention have surface topography that is formed by embossing the exposed surface of the interlayer, or individual layers of the multiple layer interlayer, after formation of the interlayer or layers. The embossing process is carried out under temperature conditions that prevent the transfer of the embossing to inner layers of the interlayer. By precisely controlling the embossing of the interlayer, lamination of the interlayer with a rigid substrate does not lead to unacceptable optical distortion caused by the transfer of the surface topography through outer, stiffer layers into softer, internal layers of the interlayer.

Abstract: The present invention includes windshields and windshield interlayers comprising a gradient region having a white coloration adjacent to which an image has been printed. The incorporation of a gradient region having a white coloration into a windshield provides a background that improves the color perception and quality of the printed image.