C03B29/025

PROCESS AND APPARATUS FOR FORMING CURVED GLASS VIA DIFFERENTIAL HEATING OF GLASS SHEET
20200199006 · 2020-06-25 ·

A process and system for forming a curved glass article from a sheet of glass material is provided. The process and system includes supporting a glass sheet on a shaping frame and then heating the sheet of glass material while supported by the shaping frame such that the central region of the sheet of glass material deforms into an open central cavity of the bending frame. The process and/or system are configured such that an aspect of the heating experienced by an outer region of the sheet of glass material is less than an aspect of the heating experienced by the central region of the sheet of glass material. The aspect of heating may be the average temperature, the maximum temperature and/or the heating rate, which Applicant believes may reduce certain defects during the shaping operation.

CURVED GLASS AND MANUFACTURING METHOD THEREOF

The present disclosure relates to curved cover glass used for a curved display, and a manufacturing method thereof. The present disclosure provides tempered glass comprising: glass including a curved area; and a low-reflection coating layer, coated on a surface of the glass, composed of a mixture of a binder and a hollow material, wherein the glass comprises potassium ions which penetrate up to a predetermined depth therein. According to the present disclosure, a low-reflection coating layer is formed prior to curved surface processing, and thus, the low-reflection coating layer can be uniformly formed even on areas having different curvatures. Thus, the present disclosure can minimize the color difference generated in curved glass due to low-reflection coating layers.

Methods for treating glass articles

Methods for increasing the hydrolytic resistance of a glass article are disclosed. According to one embodiment, the method includes providing a glass article with a pre-treatment hydrolytic titration value. Thereafter, the glass article is thermally treated at a treatment temperature greater than a temperature 200 C less than a strain temperature of the glass article for a treatment time greater than or equal to about 0.25 hours such that, after thermally treating the glass article, the glass article has a post-treatment hydrolytic titration value that is less than the pre-treatment hydrolytic titration value.

Method for tempering glass plate, and tempered glass plate
10654742 · 2020-05-19 · ·

To provide a method for tempering glass to obtain tempered glass having high surface quality and a deep compression stress layer. The present invention relates to a method for tempering a glass plate comprising a preparation step of preparing a glass plate having a surface temperature of at most the strain point, an internal heating step of heating the internal temperature of the glass plate to be at least the annealing point, while maintaining the surface temperature of the glass plate within 10 minutes, or to be at most the strain point, and a cooling step of cooling the glass plate.

Method for producing glass unit, pressure-sensitive adhesive sheet, and use of corrosion inhibitor

Provided is a method for producing a glass unit. The method comprises a step (A) of obtaining a glass plate comprising a glass substrate and a Low-E layer placed on the glass substrate; a step (B) of applying a protective sheet to the Low-E layer surface of the glass plate; an optional step (C) of subjecting the glass plate to at least one process selected from the group consisting of transportation, storage, processing, washing and handling; a step (D) of removing the protective sheet from the glass plate; and a step (E) of assembling a glass unit using the glass plate. The protective sheet comprises a substrate layer, and a PSA layer provided to at least one face of the substrate layer. The PSA layer comprises, as a corrosion inhibitor, a surfactant free of sulfur atoms.

ARTICLES HAVING EDGES WITH COMPRESSIVE RESIDUAL STRESS AND METHODS OF FORMING THE SAME
20200048133 · 2020-02-13 ·

Articles with at least one finished edge and methods and systems for forming the same are disclosed. A method of forming a glass article having at least one finished edge includes heating a substrate to a preparation temperature, the substrate having at least one unfinished edge, applying a laser to the at least one unfinished edge of the substrate, the laser causing a temperature of the at least one unfinished edge to increase from the preparation temperature to a finishing temperature, and reducing a power of the laser over a time period of at least about 10 seconds until the laser is deactivated, resulting in the glass article comprising the at least one finished edge.

Laminated glass structure and method of manufacture

Disclosed is a laminated glass structure with one or more inner glass layers with at least one in tension and two outer glass layers in compression wherein one or both of the outer layers at least partially wrap around the one or more inner layers at one or more of the edges of the laminated glass structure. Also disclosed is a process for forming a laminated glass structure, comprising providing a laminated glass structure, removing at least some glass from at least one the edges of the structure to produce a concavity in at the at least one edge and applying heat to the at least one edge.

GLASS-BASED ARTICLE WITH ENGINEERED STRESS DISTRIBUTION AND METHOD OF MAKING SAME

Disclosed herein are glass-based articles having a first surface having an edge, wherein a maximum optical retardation of the first surface is at the edge and the maximum optical retardation is less than or equal to about 40 nm and wherein the optical retardation decreases from the edge toward a central region of the first surface, the central region having a boundary defined by a distance from the edge toward a center point of the first surface, wherein the distance is of the shortest distance from the edge to the center point.

Method for manufacturing annular glass plate, method for manufacturing glass substrate for magnetic disk, and method for manufacturing magnetic disk
11884582 · 2024-01-30 · ·

A method for manufacturing an annular glass plate that has an outer circumferential edge surface, an inner circumferential edge surface, and a thickness not larger than 0.6 mm includes processing for manufacturing an annular glass plate by irradiating each of the outer circumferential edge surface and the inner circumferential edge surface of an annular glass blank with a laser beam to melt the outer circumferential edge surface and the inner circumferential edge surface and form molten surfaces such that the molten surfaces in the outer circumferential edge surface and the inner circumferential edge surface each have an arithmetic average surface roughness Ra not larger than 0.1 m, and the surface roughness of the molten surface in the inner circumferential edge surface becomes larger than the surface roughness of the molten surface in the outer circumferential edge surface.

USE OF A FLAT GLASS IN ELECTRONIC COMPONENTS

A method of producing an electronic component is provided. The method includes providing flat glass having a dielectric constant of less than 4.3 and a dielectric loss factor of 0.004 or less at 5 GHz; configuring the flat glass as one of an interposer, a substrate, or a superstrate; and forming the interposer, the substrate, or the superstrate into the electronic component. The electronic component can be an antenna, a patch antenna, an array of antennas, a phase shifter element, and a liquid crystal-based phase shifter element.