The present invention is directed to a multilayer structure. More specifically, the present invention is directed to a polypropylene multilayer extrusion laminate structure which provides sufficient thermal resistance and mechanical properties, and which multilayer structure can be recycled. The present invention is further directed to a process for producing the multilayer structure by an extrusion lamination process.

A multi-laminate film includes a first biaxially oriented film having a first machine direction angle and a first spiral cut oriented film having a second machine direction angle different than the first machine direction angle. The multi-laminate film also includes at least one of a second biaxially oriented film having the first machine direction angle or a second spiral cut oriented film. The first biaxially oriented film, the first spiral cut oriented film and the at least one of the second biaxially oriented film or second spiral cut oriented film are laminated together.

A multi-laminate film includes a first biaxially oriented film having a first machine direction angle and a first spiral cut oriented film having a second machine direction angle different than the first machine direction angle. The multi-laminate film also includes at least one of a second biaxially oriented film having the first machine direction angle or a second spiral cut oriented film. The first biaxially oriented film, the first spiral cut oriented film and the at least one of the second biaxially oriented film or second spiral cut oriented film are laminated together.

A ballistic-resistant articles, and methods for their preparation, based on sheets of UHMWPE films with discontinuous film splits, which combine flexibility and good ballistic properties, making them suitable for both soft-ballistic and hard-ballistic applications.

To provide a layered polyester film having excellent mechanical properties, transparency, heat resistance, and in particular excellent gas barrier property. A layered polyester film containing a polyester film and a thin film layer including mainly an inorganic compound, wherein the polyester film is a biaxially oriented polyester film including a dicarboxylic acid component containing mainly a furandicarboxylic acid and a glycol component containing mainly ethylene glycol, the thin film layer is formed on at least one surface of the polyester film, the inorganic compound is at least one of aluminum oxide and silicon oxide, and the layered polyester film has a plane orientation coefficient ΔP of not less than 0.100 and not more than 0.200, a film thickness of not thinner than 1 μm and not thicker than 300 μm, and an oxygen permeability of not less than 0.1 mL/m.sup.2/day/MPa and not more than 80 mL/m.sup.2/day/MPa under a temperature of 23° C. and a humidity of 65%.

To provide a layered polyester film having excellent mechanical properties, transparency, heat resistance, and in particular excellent gas barrier property. A layered polyester film containing a polyester film and a thin film layer including mainly an inorganic compound, wherein the polyester film is a biaxially oriented polyester film including a dicarboxylic acid component containing mainly a furandicarboxylic acid and a glycol component containing mainly ethylene glycol, the thin film layer is formed on at least one surface of the polyester film, the inorganic compound is at least one of aluminum oxide and silicon oxide, and the layered polyester film has a plane orientation coefficient ΔP of not less than 0.100 and not more than 0.200, a film thickness of not thinner than 1 μm and not thicker than 300 μm, and an oxygen permeability of not less than 0.1 mL/m.sup.2/day/MPa and not more than 80 mL/m.sup.2/day/MPa under a temperature of 23° C. and a humidity of 65%.

A light modulation device is disclosed herein. In some embodiments, a light modulation device includes a first polymer film substrate, a second polymer film substrate, an active liquid crystal layer disposed between the first and second polymer film substrates, wherein the active liquid crystal layer is capable of switching between a first orientation state and a second orientation state when a voltage is applied, and a polarizer, wherein each of the first and second polymer film substrates have in-plane retardation of 4,000 nm or more for light having a wavelength of 550 nm, a ratio of an elongation (E1) in a first direction to an elongation (E2) in a second direction perpendicular to the first direction of 3 or more, and wherein an angle formed by the first directions of the first and second polymer film substrates is in a range of 0 degrees to 10 degrees.

A light modulation device is disclosed herein. In some embodiments, a light modulation device includes a first polymer film substrate, a second polymer film substrate, an active liquid crystal layer disposed between the first and second polymer film substrates, wherein the active liquid crystal layer is capable of switching between a first orientation state and a second orientation state when a voltage is applied, and a polarizer, wherein each of the first and second polymer film substrates have in-plane retardation of 4,000 nm or more for light having a wavelength of 550 nm, a ratio of an elongation (E1) in a first direction to an elongation (E2) in a second direction perpendicular to the first direction of 3 or more, and wherein an angle formed by the first directions of the first and second polymer film substrates is in a range of 0 degrees to 10 degrees.

Methods and apparatus are provided for the production of thermoplastic composite sheets whose fibers are other than perpendicular to the longitudinal axis of the sheet and which are capable of being slit into sheets, strips and/or tapes of custom widths.

A multi-layer bladder construct consisting of a non-stretchable outer covering and a stretchable inner bladder. The outer covering has an inner surface and is made from woven polymer fibers having a warp direction and a weft direction. The inner bladder is made from a bi-axially oriented polymer film. The inner bladder has an outer surface area that is smaller than the inner surface area of the outer covering. Upon inflation, the inner bladder stretches and expands until the outer surface of the inner bladder engages the inner surface of the outer covering, whereby a portion of tensile force loading on the outer covering is shared with the inner bladder. A stretchable flexible film is incorporated into the inner bladder in at least one selected location. The stretchable flexible film has an elastic expansion range which is greater that the elastic expansion range of the remainder of the inner bladder.