The invention provides a PVB interlayer sheet having a surface topography on at least one surface which is characterized as having a relatively low profile and a controlled, collapsible surface roughness profile (upon exposure to heat) having a population of significantly more surface peaks than negative peaks (valleys) in certain embodiments and slightly more distant peak spacing than is generally found in embossed PVB interlayers. The PVB interlayer sheets of the invention thus provide very good initial contact and tack of PVB to a glass surface, while leaving very little residual air behind after a first nip in a traditional glass lamination process when compared to other surface designs. The PVB interlayer sheets of the invention also exhibit a wide deairing window which affords greater tolerance of temperature and process variations.

A bending station for a bending device, includes two bending molds, a pressing frame arranged to adapt to the glass sheet and to press it against an upper mold, the upper mold including a molding face, the area of which, defined by projecting the contour of the upper mold onto a horizontal plane, is greater than the area defined by projecting the outer contour of the pressing frame and the glass sheet onto the same horizontal plane, the pressing frame including a pressing ring having a continuous surface, the upper mold including a flexible sheet associated with an upper series of translational elements, wherein the upper mold is able to deform under the effect of the translational elements of the upper series in order to obtain a deflection value varying by at least 5 mm.

In some embodiments, a process comprises applying an adhesive layer to a substrate having a developable shape. The process further comprises initially applying a force to press a thin glass layer against the adhesive layer along a generation line. The generation line moves across the substrate to cold-form the thin glass layer into the shape of the substrate, while maintaining the application of force on areas of the substrate over which the generation line has passed. The application of force is maintained on areas of the substrate over which the generation line has passed until the adhesive cures.

A light transmissive substrate having a coating is disclosed. The coating is formed of an adhesion promoter that includes a metal, a metal oxide, or a metal nitride. A laminate including a coated substrate is also disclosed. A method of coating a substrate is further disclosed.

Laminated glass for automobile windshield includes: a first and a second glass plate facing each other, and an intermediate film disposed between the glass plates and including a plurality of core layers and a plurality of skin layers alternately laminated. The plurality of core layers have a glass transition point of lower than 15 C. The plurality of skin layers have a glass transition point of 15 C. or higher. The plurality of core layers include two or more core layers. The laminated glass has a maximum degree of unevenness of 3 m or less in a test area A.

The principles and embodiments of the present disclosure relate generally to complexly curved laminates made from a complexly curved substrate and a flat substrate, such as automotive window glazings, and methods of cold forming complexly-curved glass products from a curved substrate and a flat substrate. In one or more embodiments, the laminate includes first complexly-curved glass substrate with a first surface and a second surface opposite the first surface, a second complexly-curved glass substrate with a third surface and a fourth surface opposite the third surface with a thickness therebetween; and a polymer interlayer affixed to the second convex surface and third surface, wherein the third surface and fourth surface have compressive stress values respectively that differ such that the fourth surface has as compressive stress value that is greater than the compressive stress value of the third surface.

A cold-formed glass laminate may include a first ply of 3D formed glass with a first thickness and a first strength. The first ply may include pre-formed residual compressive stresses in a peripheral edge portion adapted to offset tensile stresses resulting from a cold-forming process. The laminate may also include a second ply of 3D formed glass with a second thickness less than the first thickness and a second strength greater than the first strength. An adhesive may be arranged between the first ply and the second ply and post-formed residual stresses in the peripheral edge portion of the first ply of the laminate may remain compressive. A method of forming a glass laminate with compressive edge stresses is also described.

A tool for applying tint film to the rear window of an automobile has a unitary body with a concave top side and a convex bottom side, and the unitary body including a first elongate wing with front and rear edges extending to a first distal end, and an opposite second elongate wing with front and rear edges extending to a second distal end, and a central portion between the first and second elongate wings. The unitary body includes a skeletal frame member and flexible blades fitted to the skeletal frame member and extending about a periphery of the first and second elongate wings to define the front and rear edges and distal ends. The skeletal frame maintains desired curvature and prevents excessive flexing and bending of the elongate wings. The first and second wings have different degrees of curvature measured transversely between the respective front and rear edges.

At least one polycarbonate sheet is laminated to at least one further rigid layer by at least one adhesion layer, characterized in that the adhesive layer consists of polyvinyl acetal having a content of vinylacetate groups of more than 10 wt. % but less than 25 wt. % and a content of plasticizer of less than 10 wt. %.

A reinforced safety glass and its manufacturing procedure are presented. The invention uses a vehicle's original glass, which is generally tempered, eliminating need for a new specific glass. The invention utilizes films of diverse reinforcing materials to increase the final resistance of the product and therefore reinforcing the original glass. During its manufacturing process, an autoclave is used for applying pressure and temperature to bond the reinforcing films to the original glass and between each other. The invention comprises the original glass to which at least one PU film and one C-PET film are orderly applied, ate least to the interior face of the glass.