Abstract: 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.

Abstract: 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.

Abstract: A method for making a laminate structure comprising a first glass layer, a second glass layer, and at least one polymer interlayer intermediate the first and second glass layers. The first glass layer can be comprised of a strengthened glass having a first portion with a first surface compressive stress and a first depth of layer of compressive stress and a second portion with a second surface compressive stress and a second depth of layer of compressive stress. In other embodiments, the second glass layer can be comprised of a strengthened glass having a third portion with a third surface compressive stress and a third depth of layer of compressive stress and a fourth portion with a fourth surface compressive stress and a fourth depth of layer of compressive stress.

Abstract: A process for producing glass laminates including at least one sheet of glass having a thickness not exceeding 1.0 mm with reduced optical distortion and shape consistency. A pre-laminate stack of two glass sheets and a polymer interlayer are stacked between two buffer plates that are formed nominally to the desired shape of the laminate mold. The pre-laminate stack is held between the buffer plates while a vacuum is applied to the edges of the pre-laminate stack and the stack is heated to a temperature somewhat above the softening temperature of the interlayer to de-air and tack the interlayer to the two glass sheets forming the desired shaped laminate with reduced optical distortion.

Abstract: A method of providing locally annealed regions for a glass article comprising: (a) providing a strengthened glass article having a first surface compressive stress and a first depth of layer of compressive stress; (b) targeting first portions of the glass article on a first side thereof; (c) annealing the targeted first portions to a second surface compressive stress and a second depth of layer of compressive stress; and (d) repeating steps (b) and (c) to create a pattern of annealed portions of the glass article on the first side thereof. Targeted annealing can be done e.g. by focusing a laser or using microwave energy or an induction source. A method for making a laminate structure comprising a first glass layer (12), a second glass layer (16), and at least one polymer interlayer (14) intermediate the first and second glass layers.

Abstract: 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.

Abstract: A laminate structure having a first glass layer, a second glass layer, and at least one polymer interlayer intermediate the first and second glass layers. The polymer interlayer can include a first region having a first modulus of elasticity and a second region having a second modulus of elasticity. The second modulus of elasticity can be greater than the first modulus of elasticity. In some embodiments, the first region can be a central region of the polymer interlayer and the second region can be a peripheral region of the polymer interlayer encompassing the first region.

Abstract: A method of providing locally annealed regions for a glass article comprising: (a) providing a strengthened glass article having a first surface compressive stress and a first depth of layer of compressive stress; (b) targeting first portions of the glass article on a first side thereof; (c) annealing the targeted first portions to a second surface compressive stress and a second depth of layer of compressive stress; and (d) repeating steps (b) and (c) to create a pattern of annealed portions of the glass article on the first side thereof. Targeted annealing can be done e.g. by focusing a laser or using microwave energy or an induction source. A method for making a laminate structure comprising a first glass layer (12), a second glass layer (16), and at least one polymer interlayer (14) intermediate the first and second glass layers.

Abstract: A laminate structure having a first glass layer, a second glass layer, and at least one polymer interlayer intermediate the first and second glass layers. In some embodiments, the first glass layer can be comprised of a strengthened glass having first and second surfaces, the second surface being adjacent the interlayer and chemically polished and the second glass layer can be comprised of a strengthened glass having third and fourth surfaces, the fourth surface being opposite the interlayer and chemically polished and the third surface being adjacent the interlayer and having a substantially transparent coating formed thereon. In another embodiment, the first glass layer is curved and the second glass layer is substantially planar and cold formed onto the first glass layer to provide a difference in surface compressive stresses on the surfaces of the second glass layer.

Abstract: A thin glass laminate is provided that includes at least one or two outer thin (not exceeding 2 mm or not exceeding 1.5 mm) glass sheets with at least one polymer interlayer laminated between the two outer thin glass sheets. The laminate has a high level of adhesion between the two glass sheets and the interlayer, such that the laminate has a pummel value of at least 7, at least 8, or at least 9. The laminate may also have a high penetration resistance of at least 20 feet mean break height. The polymer interlayers may have a thickness ranging from about 0.5 mm to about 2.5 mm and may be formed of an ionomer, plolyvinyl butyral, or polycarbonate. At least one or both of the two glass sheets may be chemically strengthened.

Abstract: A process and system for applying coating materials to glass edges of various profiles. The glass edge is coated by picking up the coating material from an applicator such as, for example, a roller, through precise independent or relative control of the spatial relationship between the edge of the glass article and the applicator to achieve desirable product attributes such as coating thickness, profile, coverage areas and consistency. Such spatial relationships include the gap distance between the roller and applicator, coating thickness on the applicator, applicator and/or glass speed, and the like.

Abstract: Laminated structures comprise a metal sheet including a first face and a second face with a thickness of from about 0.5 mm to about 2 mm extending between the first face and the second face. The laminated structure further includes a first chemically strengthened glass sheet including a thickness of less than or equal to about 1.1 mm and a first interlayer attaching the first chemically strengthened glass sheet to the first face of the metal sheet. In further examples, methods of manufacturing a laminated structure comprise the steps of laminating with a metal sheet and a first chemically strengthened glass sheet together with an interlayer.

Abstract: A glass laminate structure comprising an internal glass sheet, an external glass sheet, and at least one polymer interlayer intermediate the external and internal glass sheets where the polymer interlayer includes a phenol, 2-(2H-benzotriazol-2-yl)-4,6-bis(1,1-dimethylpropyl) additive, a 2-(2H-benzotriazol-2-yl)-4,6-bis(1-methyl-1-phenylethyl)phenol additive, a 2-(2H-Benzotriazol-2-yl)-6-(1-methyl-1-phenylethyl)-4-(1,1,3,3-tetramethylbutyl)phenol additive, or an hydroxyphenyl substituted benzotriazole additive without a chlorine substituent. In some embodiments, the external and/or internal glass sheets can be formed from non-chemically strengthened glass, and in other embodiments, the external and/or internal glass sheets can be formed from chemically strengthened glass. Use of such an additive can reduce or eliminate discoloration of the polymer interlayer when using high ultraviolet transmission glass sheets.

Abstract: A process for producing glass laminates including at least one sheet of glass having a thickness not exceeding 1.0 mm with reduced optical distortion and shape consistency. A pre-laminate stack of two glass sheets and a polymer interlayer are stacked between two buffer plates that are formed nominally to the desired shape of the laminate mold. The pre-laminate stack is held between the buffer plates while a vacuum is applied to the edges of the pre-laminate stack and the stack is heated to a temperature somewhat above the softening temperature of the interlayer to de-air and tack the interlayer to the two glass sheets forming the desired shaped laminate with reduced optical distortion.

Abstract: A thin glass laminate is provided including at least one or two thin glass sheets with at least one polymer interlayer laminated therebetween. The laminate has a high level of adhesion between the two glass sheets and the interlayer, such that the laminate has a pummel value of at least 7, at least 8, or at least 9. The laminate also has a high penetration resistance of at least 20 feet mean break height. The polymer interlayers have a thickness ranging from about 0.5 mm to about 2.5 mm and are formed of an ionomer, poly vinyl butyral, or polycarbonate. At least one or both of the two glass sheets are chemically strengthened.

Abstract: A new laminated glass structure for automotive glazing, architectural window and other applications that includes two sheets of relatively thin, optionally chemically strengthened glass, such as Corning® Gorilla® Glass, with a composite interlayer structure that includes at least one relatively stiff layer having relatively high Young's modulus of 50 MPa or higher and a relatively softer polymer layer having a relatively low Young's modulus of 20 MPa or lower.

Abstract: Methods apply a layer of material to a glass sheet having a non-planar shape. The methods can each include the step of providing the glass sheet having an initial non-planar shape including a thickness defined between a first sheet surface and a second sheet surface. The method further includes the step of at least partially flattening the glass sheet into an application shape. The method further includes the step of applying the layer of material to the first sheet surface while the glass sheet is in the application shape. The method then includes the step of releasing the glass sheet to relax into a post non-planar shape.

Abstract: Methods apply a layer of material to a glass sheet having a non-planar shape. The methods can each include the step of providing the glass sheet having an initial non-planar shape including a thickness defined between a first sheet surface and a second sheet surface. The method further includes the step of at least partially flattening the glass sheet into an application shape. The method further includes the step of applying the layer of material to the first sheet surface while the glass sheet is in the application shape. The method then includes the step of releasing the glass sheet to relax into a post non-planar shape.

Abstract: Embodiments of a microfluidic assembly comprise at least two adjacent microstructures and a plurality of interconnecting fluid conduits which connect an outlet port of one microstructure to an inlet port of an adjacent microstructure. Each microstructure comprises an inlet flow path and an outlet flow path not aligned along a common axis. Moreover, the microfluidic assembly defines a microfluidic assembly axis along which respective inlet ports of adjacent microstructures are oriented or alternatively along which respective outlet ports of adjacent microstructures are oriented, and each microstructure is oriented relative to the microfluidic assembly axis at a nonorthogonal angle.

Abstract: Embodiments are directed a method for reducing and/or controlling compression of stacked layers in a micro fluidic device, wherein the method comprises stacking at least two layers wherein at least one of the stacked layers comprises a microstructure. The microstructure comprises a fluid passage, a plurality of walls configured to define a spacing A1 between layers and a plurality of uniformly spaced pneumatic struts wherein the pneumatic struts define sealed containers comprising entrapped gas. The method further comprises the step of sintering the stacked layers wherein the sintering pressurizes the entrapped gas inside the pneumatic struts to oppose compression of the walls and compression of the spacing A1 between stacked layers.