O-I Glass. has filed a patent for a vitrifiable feed material used in the production of flint glass through submerged combustion melting. The material includes a base glass portion with SiO2, Na2O, and CaO contributors, as well as an oxidizing agent (sulfate compound) and a decolorant (selenium or manganese oxide). The patent claims the specific composition and ranges of these components. GlobalData’s report on O-I Glass gives a 360-degree view of the company including its patenting strategy. Buy the report here.
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According to GlobalData’s company profile on O-I Glass, Extrusion-based additive manufacturing was a key innovation area identified from patents. O-I Glass's grant share as of September 2023 was 73%. Grant share is based on the ratio of number of grants to total number of patents.
Vitrifiable feed material for producing flint glass using submerged combustion melting
A recently filed patent (Publication Number: US20230303418A1) describes a vitrifiable feed material for producing flint glass using a process called submerged combustion melting. The feed material includes a base glass portion that contains contributors of SiO2, Na2O, and CaO, which are essential components of the glass melt. Additionally, the feed material contains a sulfate compound in the range of 0.20 wt % to 0.50 wt % as expressed as SO3, and either selenium in the range of 0.008 wt % to 0.016 wt % or manganese oxide in the range of 0.1 wt % to 0.2 wt %.
The patent also mentions that the base glass portion may include an Al2O3 contributor and flint cullet. Flint cullet can constitute up to 80 wt % of the base glass portion. Furthermore, the feed material can include an oxidizing agent, which is a sulfate compound in this case. The sulfate compound, specifically sodium sulfate, is present in an amount ranging from 0.20 wt % to 0.50 wt %.
This patent aims to provide a vitrifiable feed material that is suitable for producing flint glass using submerged combustion melting. The inclusion of specific components such as the sulfate compound and selenium or manganese oxide helps in achieving the desired properties of the glass. The presence of an oxidizing agent, in the form of a sulfate compound, further enhances the glass production process.
The use of flint cullet and an Al2O3 contributor in the base glass portion allows for the customization of the feed material according to specific requirements. The patent also highlights the proportion of flint cullet, which can constitute a significant portion of the base glass.
Overall, this patent presents a vitrifiable feed material formulation that can be used in the production of flint glass using submerged combustion melting. The inclusion of specific components and the presence of an oxidizing agent contribute to the desired properties of the glass. The customization options provided by the inclusion of flint cullet and an Al2O3 contributor make this feed material versatile for various applications.
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