Abstract: A wedge-shaped interlayer having reduced dynamic ghosting is provided, wherein the interlayer comprises at least one polymer layer comprising a poly(vinyl acetal) resin and at least one plasticizer, wherein said wedge-shaped interlayer defines a head-up display (HUD) region having a target vertical wedge angle, an actual vertical wedge angle and an absolute wedge angle rate of change, wherein the absolute wedge angle rate of change is less than 3.0 prad/mm throughout the entire HUD region.

Abstract: A wedge-shaped interlayer having reduced dynamic ghosting and reduced dynamic transmitted imagery variations is provided, wherein the interlayer comprises at least one polymer layer comprising a poly(vinyl acetal) resin and at least one plasticizer, wherein said wedge-shaped interlayer defines a head-up display (HUD) region having a target vertical wedge angle, an actual vertical wedge angle and an absolute wedge angle rate of change, wherein the absolute wedge angle rate of change is less than 3.0 prad/mm throughout the entire HUD region, and less than 3.0 prad/mm outside the HUD region.

Abstract: Multiple layer interlayers having enhanced optical and acoustic properties are provided, along with methods of making and using the same. Interlayers as described herein may include at least two outer skin layers and an inner core layer, with one of the outer skin layers having a different thickness than the other at one or more locations along the interlayer. The multi-layer interlayer may also exhibit acoustic properties and, in some cases, may have an overall wedged thickness profile. Additionally, in some aspects, interlayers and laminates formed therefrom may also provide reduced infrared energy transmission, without sacrificing acoustic and/or optical performance.

Abstract: Multiple layer interlayers comprising pairs of alternating polymer layers are provided, along with methods of making and using the same. Multiple layer interlayers according to embodiments of the present invention may include more than three polymer layers and may exhibit desirable acoustic and optical properties, which may make them suitable for use in various types of multiple layer panels, including safety glass for automotive and architectural applications.

Abstract: Multiple layer interlayers comprising pairs of alternating polymer layers are provided, along with methods of making and using the same. Multiple layer interlayers according to embodiments of the present invention may include more than three polymer layers and may exhibit desirable acoustic and optical properties, which may make them suitable for use in various types of multiple layer panels, including safety glass for automotive and architectural applications.

Abstract: Multiple layer interlayers comprising pairs of alternating polymer layers are provided, along with methods of making and using the same. Multiple layer interlayers according to embodiments of the present invention may include more than three polymer layers and may exhibit desirable acoustic and optical properties, which may make them suitable for use in various types of multiple layer panels, including safety glass for automotive and architectural applications.

Abstract: An interlayer comprising a first polymer layer, a polarization rotary optical film and optionally a second polymer layer, and multiple layer panels formed from such interlayers. The panels may exhibit desirable optical properties, including, for example, less image “ghosting,” when used as part of a heads-up-display (HUD) display panel for use in automotive and aircraft applications.

Abstract: A tapered interlayer and windshield employing the same are provided. Unlike conventional windshields, which are optimized to reduce ghost images for a single driver height, the windshields of the present invention may exhibit reduced ghosting for drivers of multiple heights, including very tall or very short drivers, while also providing desirable image clarity for average-height drivers. Windshields as described herein may be used in a variety of applications, including automotive, aircraft, marine, and recreational vehicles that employ HUD projection systems.

Abstract: Multiple layer interlayers comprising pairs of alternating polymer layers are provided, along with methods of making and using the same. Multiple layer interlayers according to embodiments of the present invention may include more than three polymer layers and may exhibit desirable acoustic and optical properties, which may make them suitable for use in various types of multiple layer panels, including safety glass for automotive and architectural applications.

Abstract: A tapered interlayer comprising at least one polymer layer and a having tapered zone with an overall wedge angle of not more than 0.85 mrad is provided. The refractive index of the polymer layer is 1.480 or higher. Multiple layer panels formed from such interlayers may exhibit desirable optical properties, including, for example, less image “ghosting,” when used as part of a heads-up-display (HUD) display panel for use in automotive and aircraft applications.

Abstract: A continuous single-stage embossing station comprised of two (2) temperature controlled engraved rollers which is located immediately after the extrusion die in the manufacturing process for multi-layer laminated glass panels and allows for dual simultaneous embossment of both sides of a polymer melt sheet and produces a polymer interlayer sheet with increased permanence, embossed retention values and decreased incidence of mottle and stack sticking peel force values. Also disclosed herein is an embossed polymer interlayer sheet with a first side, a second side and an embossed surface on at least one of the sides, with a surface roughness Rz of 10 to 90 microns on the embossed surface, a permanence of greater than 95% when tested at 100° C. for five (5) minutes and an embossed surface retention of greater than 70% when tested at 140 ° C. for five (5) minutes.