The present invention relates to a method for producing a polyvinyl acetal resin film containing a plasticizer absorbed therein, comprising: a contact step of bringing a liquid plasticizer into contact with a polyvinyl acetal resin film; and a heating step of heating the polyvinyl acetal resin film that has been contacted with the liquid plasticizer, wherein an amount of a plasticizer in the polyvinyl acetal resin film before the contact step is 0 to 20% by mass based on a total mass of the polyvinyl acetal resin film.

Safety glass and method for its obtainment is presented. The safety glass includes a single glass plate with at least one layer of Polyvinyl butyral (“PVB”) film applied without adhesive over the interior face of the glass plate and at least one layer of Crystallizable PolyEthylene Terephthalate (“C-PET”) film applied without adhesive over the at least one PVB film layer on the interior face of the glass plate. The safety film optionally includes a safety film layer for shatter-proofing applied over the exterior face of the single glass plate and/or over the at least one C-PET film layer on interior face of the single glass plate.

Method and composition for switchable panels are disclosed. Switchable films are placed between glass and liquid resin is injected between the glass and cured. The panels may be used for a wide variety of applications.

The present disclosure relates generally to methods for the integration of electrochromic films onto a substrate, such as a glass window, and the systems/structures formed via such methods.

A vehicle glazing (10) wherein a light guide stack (22) is located between a portion of the inner transparency (26) and the outer transparency (28). The light guide stack includes a polycarbonate film (32) that is bonded to the transparencies by layers of PET (38, 40) that are secured to the polycarbonate film on one side by silicone (34, 36) and that are secured to the transparencies on the other side by PVB (42, 44). The terminal end of an extending tab of the polycarbonate film forms an edge that is connected to a light bar (14) that such visible light propagates through the light bar and into the polycarbonate film through the edge. Visible light propagates through etchings in the smooth surface of the polycarbonate film to form an image. An extension of one of the transparencies protects the polycarbonate tab and supports the light bar during installation of the glazing into the vehicle portal.

An interlayer film 10 for laminated glass comprises a first resin layer 11, a second resin layer 12, and a plastic layer 13 disposed between the first and second resin layers 11 and 12, wherein: the first resin layer 11 comprises a thermoplastic resin, and has a thickness of 900 μm or less, and a magnesium element content of less than 25 ppm; the second resin layer 12 comprises a thermoplastic resin, and has a total content of magnesium element and potassium element of 25 ppm or more; and the interlayer film for laminated glass satisfies requirements to have a mean break height (MBH) of 5 m or more in a falling ball test conducted in accordance with JIS R 3212: 2015 for two glass sheets each having a thickness of 2.5 mm laminated via the interlayer film 10 for laminated glass, in both cases with a water content of the interlayer film for laminated glass of 0.4% and 2.0%.

Laminated glass for vehicles comprising an interior glass plate and an exterior glass plate, an interlayer film between the interior glass plate and the exterior glass plate, and a light control element sealed in the interlayer film, wherein the light control element has a pair of substrates and a light control layer between the pair of substrates, and the interlayer film includes an interior portion on the vehicle-interior side of the light control layer, and an exterior portion on the vehicle-exterior side of the light control layer, when the transmittance of the exterior glass plate, the exterior portion of the interlayer film, and the substrate on the vehicle-exterior side, of the light control layer, is Tout, and the transmittance of the interior glass plate, the interior portion of the interlayer film, and the substrate on the vehicle-interior side, of the light control layer, is Tin, a relation Tout<Tin is satisfied.

A laminated glazing and a method for its production is disclosed. One or more coatings and layers are applied onto or disposed between a pair of sheets to produce such laminated glazing that enhances an accuracy and reliability of an optical sensor coupled thereto. More particularly, the laminated glazing includes an antireflective layer to facilitate a light transmission of at least 80% for a plurality of wavelengths through the laminated glazing.

Methods for preparing multi-layer optical laminates include placing an optical film that is free form an adhesive layer between first and second glass substrates that are free of an adhesive layer, placing this laminate under vacuum, and then heating the laminate under pressure to a temperature above the softening temperature of the optical film. The glass substrates are free of an adhesive layer but may include a silane surface treatment. The resulting multi-layer laminate is optically clear and does not show scattering of reflected light by the optical film.

A privacy glazing structure may include an electrically controllable optically active material, such as a liquid crystal material, sandwiched between a flexible substrate and a rigid substrate. The flexible substrate and the rigid substrate may each have a conductive layer deposited on the surface facing the optically active material. The flexible substrate may be bonded about its perimeter to the rigid substrate and may be sufficiently flexible to conform to non-planarity of the rigid substrate. As a result, the flexible substrate may adopt the surface contour of the rigid substrate to maintain a uniform thickness of optically active material between the flexible substrate and the rigid substrate.