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Compositions: Ceramic > Ceramic Compositions > Glass Compositions, Compositions Containing Glass Other Than Those Wherein Glass Is A Bonding Agent, Or Glass Batch Forming Compositions > Silica Containing > Less Than 40 Percent By Weight Silica > And Boron And BoronAnd Boron patent applications listed are from June 2005 to current and include Date, Patent Application Number, Patent Title, Patent Abstract summary and are linked to the corresponding patent application page.03/09/06 - 20060052231 - Non-lead glass for forming dielectric, glass ceramic composition for forming dielectric, dielectric, and process for producing laminated dielectric A non-lead glass for forming a dielectric, which consists essentially of, as represented by mol %, from 20 to 39% of SiO2, from 5 to 35% of B2O3, from 2 to 15% of Al2O3, from 1 to 25% of CaO+SrO, from 5 to 25% of BaO, from 0 to 35% ... 09/15/05 - 20050202952 - Optical glass, precision press-molding preform, optical element and processes for production of these Provided are optical glasses having a phosphate-containing composition that can materialize highly useful optical properties including high-refractivity and high-dispersion properties; an optical glass comprising P2O5, SiO2 and Li2O as essential components, comprising Na2O and K2O as optional components, having an Li2O/(Li2O+Na2O+K2O) molar ratio of from 1/3 to 1 and having ... 06/23/05 - 20050137075 - Aluminoborosilicate glass and method for the production of crystallite-free gradient index lenses The invention is directed to an aluminoborosilicate glass containing alkali metals for the production of optical components with refractive index gradients which are generated by ion exchange of monovalent metal ions in a base glass comprising at least silicon oxide, boron oxide, aluminum oxide and an alkali metal oxide, particularly ... ### FreshPatents.com Support |