Abstract: A chemically strengthened glass sheet is provided that has a thickness of at least 3.3 mm and at most 6.0 mm and a composition, in mol% on an oxide basis, comprising the following components: SiO2 65 to 85 B2O3 3 to 13 ? (R2O + RO) 3 to 19, wherein R2O represents any of Li2O, Na2O, and K2O, and any combination thereof, and wherein RO represents any of MgO, CaO, SrO and BaO, and any combination thereof.

Abstract: The invention relates to a method for producing a glass substrate for vehicle glazing, in particular for a windscreen of a vehicle, which comprises hot forming of a borosilicate glass, wherein in a hot forming section, at least during stretching of the glass (8) in the flow direction or longitudinal direction of movement of the glass (8), an aging velocity Av of the glass (8) to be hot formed does not exceed 10 mm/s and an aging velocity Av of the glass preferably does not undershoot 3 mm/s, and also relates to glass substrates for vehicle glazing produced by such method as well as to windscreen projection devices and driver assistance systems comprising such glass substrates.

Abstract: The method of making borosilicate glass with a surface having reactive SiOH groups on it includes preparing a borosilicate glass melt and dissolving at least 30 mMol per liter of water in the borosilicate glass melt. The borosilicate glass contains from 70 to 87 percent by weight, SiO2; from 7 to 15 percent by weight, B2O3; from 0 to 8 percent by weight, Al2O3; from 0 to 8 percent by weight, Na2O and from 0 to 8 percent by weight of K2O. The borosilicate glass with the easily modified reactive surface can be used as a substrate for chemically covalent immobilization of reactive substances. This substrate can be used to make a biochemical chip, such as a DNA or gene chip, or dirt-proof window glass.

Abstract: The invention relates to a method for the production of borosilicate glass with a surface which can be easily modified, having reactive SiOH-groups. According to said method, a glass melt is produced wherein water is dissolved in quantities of at least 30 mMol of water per litre. Said glass is especially suitable for use as a substrate for sensors and biochips, dirt-proof working glass for windows, reagent glass, laboratory glass, microarrays, electronic noses, artificial nose chips, electronic tongues, chips for the polymerase-chain reaction, DNA-microarray chips, gene chips, protein chips, in addition to biochemical laboratories on a chip.