Glass laminates, comprising more than one glass composition, are becoming increasingly common as the industry moves towards lighter and stronger glazing. Bending dissimilar glass compositions can present problems. A mismatch in the glass viscosity curves, especially in the viscoelastic region of the compositions can result in one layer becoming softer than one of the other layers during the thermal bending process. As a result, economical processes, such as gravity or press bending in which multiple glass layers are simultaneously bent, may not be practical to use forcing the use of more expensive single glass layer bending processes. By thermal treatment processes the fictive temperature of at least one of the glass compositions prior to bending can be shifted to better match the other compositions allowing the glass layers to be simultaneously bent.

Due to the increased glazed area of modern vehicles, especially the large panoramic glass roofs, we have seen a substantial growth in the use of anti-reflective coatings. Unfortunately, these types of coatings accentuate fingerprints and smudges. The invention provides an automotive glazing which is substantially resistant to fingerprints, and a method of manufacture thereof through the application of an anti-fingerprint coating based on low surface energy silanes.

Laminated automotive glazing, once limited to just the windshield, is finding more and more application in other positions in vehicles due to its ability to reduce weight, as well as to improve passenger safety, security and comfort. Designing a laminate that can serve as a direct replacement for tempered glass can be challenging Tempered glass is 4 to 5 times stronger than annealed glass and the lamination process has limitations that are not present with tempered. In particular, it is difficult to produce thin laminated glazing with holes. The laminate of the invention comprises strengthened thin glass layers in combination with laminated inserts to provide a thin laminated glazing with holes that has all of the advantages inherent in a laminate while retaining the reliability and utility of a tempered part and further can serve as a direct replacement for a tempered part.

Apparatuses and methods for glass laminates having a controlled coefficient of thermal expansion are disclosed. In C one embodiment, a glass laminate includes a glass core having a core thickness (T.sub.core) and a core coefficient of thermal expansion (CTE.sub.core), a first glass cladding layer and a second glass cladding layer. The first glass cladding layer and the second glass cladding layer are arranged such that the glass core is disposed between the first glass cladding layer and the second glass cladding layer. The first glass cladding layer has a first cladding thickness (T.sub.clad1) and a first clad coefficient of thermal expansion (CTE.sub.clad1), and the second glass cladding layer has a second cladding thickness (T.sub.clad2) and a second clad coefficient of thermal expansion (CTE.sub.clad2). The glass laminate has a laminate coefficient of thermal expansion (CTE.sub.L) within a range of about 35×10.sup.−7/° C. to about 90×10.sup.−7/° C., the laminate coefficient of thermal expansion (CTE.sub.L) defined by: CTE.sub.L=((CTE.sub.core×T.sub.core)+(CTE.sub.clad1×T.sub.clad1)+(CTE.sub.clad2× T.sub.clad2))/(T.sub.core+T.sub.clad1+T.sub.clad2).

Various embodiments for a laminate glass article and related methods are provided. The laminated glass article includes a first glass layer and a second glass layer with a TPU interlayer positioned therebetween.

A laminated vehicle glazing with includes a first extraclear glass sheet forming an exterior glazing, a lamination interlayer and a second glass sheet forming an interior glazing with a traversing hole in these last two.

A laminated glazing includes a structural transparent substrate bonded to a glass sheet of 0.5 to 4 mm, intended to constitute an outer surface of the laminated glazing, by an adhesive interlayer of 4 to 10 mm, which successively includes 0.25 to 2.5 mm of a flexible first polymer material having a relaxation modulus at most equal to 2 GPa for relaxation times at least equal to 10 min, at temperatures at least equal to −40° C., in contact with the glass sheet, then a stiff second polymer material having a relaxation modulus at least equal to 4 GPa, for time constants at most equal to 0.1 millisecond and temperatures at most equal to 40° C.

An automotive laminated glazing is provided, comprising an outer glass layer and an inner glass layer, said outer glass layer having a first surface and a second surface and said inner glass layer having a third surface and a fourth surface, wherein the inner glass layer has a thickness of not more than 1.0 mm and is chemically strengthened, and wherein the fourth surface features a low-e coating, obtainable by chemically strengthening a flat glass pane having a thickness of not more than 1.0 mm, then applying the low-e coating, and finally laminating the flat glass pane to a curved glass pane forming the outer layer, thereby cold bending said flat glass pane.

A laminated glazing comprising first and second sheets of glass joined together by an interlayer structure comprising at least first and second layers of adhesive interlayer material with a support sheet therebetween is disclosed. The laminated glazing is arranged such that the first layer of adhesive interlayer material is between the first sheet of glass and the support sheet, the second layer of adhesive interlayer material is between the second sheet of glass and the support sheet support material and at least a portion of the second major surface of the first sheet of glazing material faces the first major surface of the second sheet of glazing material. In the event of breakage of the first sheet of glass, the second layer of adhesive interlayer material remains attached to the support sheet thereby keeping the second glass sheet from becoming detached from the laminated glazing.

A multilayer glass stack for a vehicle windshield with improved durability is described. The multilayer glass stack includes an external-facing glass layer, an internal-facing glass layer, and an adhesive interlayer positioned between the external-facing and internal-facing glass layers. The external-facing glass layer may include borosilicate and/or does not include soda lime glass. Methods of manufacturing the multilayer glass stack are also described.