Abstract: The disclosure relates to a glass product or glass composition, and to a method of making a glass product. The glass composition can be manufactured without inhomogeneities in the glass melt and with sufficiently uniform and isotropic properties in the obtained products. The glass compositions further minimise and/or overcome the problem of blockage of pipes, liners, ducts or nozzles during the manufacture of high-quality glasses.

Abstract: A glass has a maximum crystallization rate (KGmax) of at most 0.20 ?m/min in a temperature range of 700° C. to 1250° C. and a hydrolytic stability according to a hydrolytic class 1 HGA1 according to ISO 720:1985. In the case of a sample thickness of 2 mm of the glass, a ratio of a minimum transmittance in a wavelength range of 850 nm to 950 nm to a maximum transmittance in a wavelength range of 250 nm to 700 nm is in a range of 1.9:1 to 15:1.

Abstract: A glass includes the following components in the indicated amounts (in mol %): 64.5-73.0 SiO2; 4.0-11.0 Al2O3; 0-0.2 B2O3; 0-3.5 Na2O; 0-4.0 K2O; 0.1-7.0 MgO; 3.0-15.0 CaO; 0-10.0 SrO; 0-5.0 BaO; 0-0.5 ZnO; 0.1-7.5 R2O, where R2O indicates a sum of the molar amounts of Na2O and K2O; and >15.0-22.5 RO, where RO indicates a sum of the molar amounts of MgO, CaO, SrO, BaO and ZnO.

Abstract: A chemically temperable borosilicate glass article has a low boron content and a corresponding Na2O content. The articles have good diffusivities and hydrolytical resistance values. When chemically tempered, the borosilicate glass article exhibits a compressive stress CS >400 MPa and a penetration depth DoL >20 ?m. A pharmaceutical primary packaging including the borosilicate glass article is also disclosed.

Abstract: A glass includes SiO2 in an amount of at least 60.0 wt.-% and an amount of WO3 from 0.1 ppm to 60.0 ppm. Tungsten is present in such oxidation states that a transmittance of the glass at a wavelength of 260 nm is at least 75.0%.

Abstract: A glass includes SiO2 in an amount of at least 60.0 wt.-% and an amount of MoO3 from 0.1 ppm to 30.0 ppm. Molybdenum is present in such oxidation states that a transmittance at a wavelength of 260 nm is at least 65.0% at a reference thickness of 1.0 mm.

Abstract: A method for producing a glass article having high hydrolytic resistance is provided. A glass tube consisting of borosilicate glass and having an Al2O3 content of less than 1 weight-%, a ZrO2 content of 2-12 weight-%, and a glass transition temperature Tg is reshaped into a glass article and is subsequently subjected to a thermal post-treatment. To reduce the alkali release of the glass article, the glass article is subjected to a treatment temperature of TB?Tg+5° K over a treatment time of tB?5 min and is subsequently cooled during the thermal post-treatment.

Abstract: Glasses and glass products suitable for pharmaceutical packaging are provided and methods of making and using such glass and glass products are provided. The glasses combine chemical temperability with very good hydrolytic resistance as well as reduced color tinge. The invention also includes methods for the production of such glasses and their uses.

Abstract: A glass has a transmittance at a wavelength of 220 nm of at least 30% and a transmittance at a wavelength of 200 nm of less than 4.0%, the glass having a total platinum content of less than 3.5 ppm. A device and a sterilizer include a light source configured to output ultraviolet light and a lamp cover covering the light source and including the glass.

Abstract: A glass article is composed of a glass having a demixing factor in respect of its hydrolytic resistance in a range from 0.10 to 1.65.

Abstract: A glass has a maximum crystallization rate (KGmax) of at most 0.20 ?m/min in a temperature range of 700° C. to 1250° C. and a hydrolytic stability according to a hydrolytic class 1 HGA1 according to ISO 720:1985. In the case of a sample thickness of 2 mm of the glass, a ratio of a minimum transmittance in a wavelength range of 850 nm to 950 nm to a maximum transmittance in a wavelength range of 250 nm to 700 nm is in a range of 1.9:1 to 15:1.

Abstract: Glasses and glass products suitable for pharmaceutical packaging are provided and methods of making and using such glass and glass products are provided. The glasses combine chemical temperability with very good hydrolytic resistance as well as reduced color tinge. The invention also includes methods for the production of such glasses and their uses.

Abstract: A chemically temperable borosilicate glass article has a low boron content and a corresponding Na2O content. The articles have good diffusivities and hydrolytical resistance values. When chemically tempered, the borosilicate glass article exhibits a compressive stress CS >400 MPa and a penetration depth DoL >20 ?m. A pharmaceutical primary packaging including the borosilicate glass article is also disclosed.

Abstract: A method for producing a glass article having high hydrolytic resistance is provided. A glass tube consisting of borosilicate glass and having an Al2O3 content of less than 1 weight-%, a ZrO2 content of 2-12 weight-%, and a glass transition temperature Tg is reshaped into a glass article and is subsequently subjected to a thermal post-treatment. To reduce the alkali release of the glass article, the glass article is subjected to a treatment temperature of TB?Tg+5° K over a treatment time of tB?5 min and is subsequently cooled during the thermal post-treatment.