Articles of porous glass and process for preparing the same

• Main Authors: NAKASHIMA; TADAO, KAWANO; MIKIO, SHIMIZU; MASATAKA
• Format: Patent
• Language: English
• Published: 14.04.1987
• Edition: 4
• Subjects: AGRICULTURE; ANIMAL HUSBANDRY; CARE OF BIRDS, FISHES, INSECTS; CHEMICAL COMPOSITION OF GLASSES, GLAZES, OR VITREOUSENAMELS; CHEMISTRY; CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATERTREATMENT OR WASTE MANAGEMENT; FISHING; FORESTRY; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GLASS; HUMAN NECESSITIES; HUNTING; JOINING GLASS TO GLASS OR OTHER MATERIALS; MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES; METALLURGY; MINERAL OR SLAG WOOL; NEW BREEDS OF ANIMALS; REARING OR BREEDING ANIMALS, NOT OTHERWISE PROVIDED FOR; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS,MINERALS OR SLAGS; SURFACE TREATMENT OF GLASS; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS; TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINSTCLIMATE CHANGE; TRAPPING; TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE

Porous glass product of the invention comprises about 60 to about 80% by weight of SiO2, about 7 to about 15% by weight of Al2O3, about 6 to about 12% by weight of B2O3, about 3 to about 7% by weight of Na2O and about 3 to 7% by weight of CaO and having pores about 200 to about 10000 nm in size and circular in cross section.