Disclosed is a glass protective film for covering a curved surface which protects display areas of a portable display including a flat display area and a curved display area. The glass protective film for covering the curved surface includes a glass film member having a flat area portion corresponding to the flat display area and a curved area portion corresponding to the curved display area and an adhesive layer adhering the entire area of the lower surface of the glass film member to the display area of the portable display.

A pink aluminosilicate glass, comprising: a glass former, a network intermediate oxide, a network modifier oxide, a network former oxide, a network modifier, a colorant and a clarificant, wherein the glass former is SiO.sub.2, the network modifier oxide is CaO, MgO, K.sub.2O and Na.sub.2O, the network former oxide is B.sub.2O.sub.3, and the network modifier is ZrO.sub.2 and SrO. This glass is pink in visible light, has a good visual effect, and has a relatively high thermal stability, and can improve the usage safety in harsh working environments.

The application relates to bond materials for a grinding wheel, in particular a glass ceramic and a preparation method thereof, and a bond for the composite grinding wheel. The glass ceramic is prepared from raw materials comprising kaolin, silica, diboron trioxide, lithium superoxide, albite, potassium feldspar, talc, dolomite, phosphorus pentoxide, and yttrium oxide. A glass ceramic composed entirely of microcrystalline phases is obtained from the glass prepared by the above raw materials at 900-1020 C., achieving a complete conversion of the glass phase at a low temperature. The application also provides a bond for a composite grinding wheel, comprising glass ceramic and glass with mass ratio of (20-50):(50-80), the glass phase having a low flow temperature and, together with the glass ceramic phase, forming encapsulation of the abrasive particles, realizing low-temperature sintering of the grinding wheel. Microcrystalline phase in the bond results in high mechanical strength for the obtained grinding wheel.

A method of manufacturing a lithium aluminosilicate glass product suitable for making a glass-ceramic product, includes melting a vitrifiable mixture of raw materials, which are free from arsenic oxides and antimony oxides, apart from unavoidable traces, refining the molten material, cooling the molten material so as to form a glass, forming of the glass, wherein the vitrifiable mixture of raw materials includes petalite having a fraction by weight of total iron, expressed as Fe.sub.2O.sub.3, less than or equal to 200 ppm.

A method of manufacturing a lithium aluminosilicate glass product suitable for making a glass-ceramic product, includes melting a vitrifiable mixture of raw materials, which are free from arsenic oxides and antimony oxides, apart from unavoidable traces, refining the molten material, cooling the molten material so as to form a glass, forming of the glass, wherein the vitrifiable mixture of raw materials includes petalite having a fraction by weight of total iron, expressed as Fe.sub.2O.sub.3, less than or equal to 200 ppm.

To provide a method for recycling a solar cell module glass, which enables development of other novel applications of a waste glass of a solar cell module while controlling an elution amount of Sb from the waste glass into water. Disclosed is a method for recycling a solar cell module glass, the method comprising: grinding a solar cell module glass into a glass powder; adding at least one foaming agent selected from SiC, CaCO.sub.3 and a seashell, and a particular inhibitor to the glass powder to produce a mixture; and heating the mixture to 700 to 1,100 C. to produce a foam glass.

A method of recycling glass fiber-reinforced polymer composite materials that can provide improved quality recycled glass fiber is described. More particularly, the method comprises pyrolysis of glass fiber-reinforced polymer composite scrap and/or end-of-life material and the subsequent immersion of the pyrolyzed glass fibers in a molten salt bath, e.g., comprising molten potassium nitrate. Immersion in the molten salt bath can eliminate char from the pyrolyzed fibers, as well as removing residual inorganic materials. In addition, immersion in the molten salt bath can strengthen the glass fiber, which can result in the recovery or avoidance of tensile strength losses normally incurred through traditional char removal processes.

A fining agent for reducing the concentration of seeds or bubbles in a silicate glass. The fining agent includes at least one inorganic compound, such as a hydrate or a hydroxide that acts as a source of water. In one embodiment, the fining agent further includes at least one multivalent metal oxide and, optionally, an oxidizer. A fusion formable and ion exchangeable silicate glass having a seed concentration of less than about 1 seed/cm.sup.3 is also provided. Methods of reducing the seed concentration of a silicate glass, and a method of making a silicate glass having a seed concentration of less than about 1 seed/cm.sup.3 are also described.

A low infrared absorbing lithium glass includes FeO in the range of 0.0005-0.015 wt %, more preferably 0.001-0.010 wt %, and a redox ratio in the range of 0.005-0.15, more preferably in the range of 0.005-010. The glass can be chemically tempered and used to provide a ballistic viewing cover for night vision goggles or scope. A method is provided to change a glass making process from making a high infrared absorbing lithium glass having FeO in the range of 0.02 to 0.04 wt % and a redox ratio in the range of 0.2 to 0.4 to the low infrared absorbing lithium glass by adding additional oxidizers to the batch materials. A second method is provided to change a glass making process from making a low infrared absorbing lithium glass to the high infrared absorbing lithium glass by adding additional reducers to the batch material. In one embodiment of the invention the oxidizer is CeO.sub.2. An embodiment of the invention covers a glass made according to the method.

A glass precursor gel and a method of making a glass product from the glass precursor gel are disclosed. The glass precursor gel includes a bulk amorphous oxide-based matrix that is homogeneously chemically mixed and includes 30 mol % to 90 wt. % silica and at least one of the following: (A) 0.1 mol % to 25 mol % of one or more alkali oxides in sum total, (B) 0.1 mol % to 25 mol % of one or more alkaline earth oxides in sum total, (C) 1 mol % to 20 mol % boric oxide, (D) 5 mol % to 80 mol % lead oxide, or (E) 0.1 mol % to 10 mol % aluminum oxide. A method of making a glass product from the glass precursor gel involves obtaining the glass precursor gel, melting the glass precursor gel into molten glass, and forming the molten glass into a glass product.