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US 2019/0337838 A1Published application
Chemical Composition for Production of Hollow Spherical Glass Particles with High Compressive Strength
AssigneeOmya International AG
InventorAlexander Isaev
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Abstract
A hollow spherical glass particle, comprising aluminum oxide Al2O3, silicon dioxide SiO2 and at least one metal oxide, wherein the metal oxide is selected from the group consisting of alkali metal oxides and alkaline earth metal oxides, wherein the ratio of aluminum atoms to alkali metal atoms is about 1:1 and the ratio of aluminum atoms to earth alkali atoms is about 2:1, with the proviso that the hollow spherical glass particle is free of boron.
Claims14
A hollow spherical glass particle, comprising:
- aluminum oxide Al2O3, silicon dioxide SiO2 and at least one metal oxide, wherein the metal oxide is selected from the group consisting of alkali metal oxides and alkaline earth metal oxides;
- wherein the ratio of aluminum atoms to alkali metal atoms is about 1:1 and the ratio of aluminum atoms to earth alkali atoms is about 2:1;
- with the proviso that the hollow spherical glass particle is free of boron.
Dependencies are inferred from the claim text.