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1. WO2020112404 - BIOACTIVE SILICATE GLASSES

Publication Number WO/2020/112404
Publication Date 04.06.2020
International Application No. PCT/US2019/061988
International Filing Date 18.11.2019
IPC
C03C 3/097 2006.01
CCHEMISTRY; METALLURGY
03GLASS; MINERAL OR SLAG WOOL
CCHEMICAL COMPOSITION OF GLASSES, GLAZES, OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
3Glass compositions
04containing silica
076with 40% to 90% silica by weight
097containing phosphorus, niobium or tantalum
C03C 4/00 2006.01
CCHEMISTRY; METALLURGY
03GLASS; MINERAL OR SLAG WOOL
CCHEMICAL COMPOSITION OF GLASSES, GLAZES, OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
4Compositions for glass with special properties
C03C 12/00 2006.01
CCHEMISTRY; METALLURGY
03GLASS; MINERAL OR SLAG WOOL
CCHEMICAL COMPOSITION OF GLASSES, GLAZES, OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
12Powdered glass; Bead compositions
C03C 13/00 2006.01
CCHEMISTRY; METALLURGY
03GLASS; MINERAL OR SLAG WOOL
CCHEMICAL COMPOSITION OF GLASSES, GLAZES, OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
13Fibre or filament compositions
CPC
C03C 2204/02
CCHEMISTRY; METALLURGY
03GLASS; MINERAL OR SLAG WOOL
CCHEMICAL COMPOSITION OF GLASSES, GLAZES, OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
2204Glasses, glazes or enamels with special properties
02Antibacterial glass, glaze or enamel
C03C 3/097
CCHEMISTRY; METALLURGY
03GLASS; MINERAL OR SLAG WOOL
CCHEMICAL COMPOSITION OF GLASSES, GLAZES, OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
3Glass compositions
04containing silica
076with 40% to 90% silica, by weight
097containing phosphorus, niobium or tantalum
C03C 4/0021
CCHEMISTRY; METALLURGY
03GLASS; MINERAL OR SLAG WOOL
CCHEMICAL COMPOSITION OF GLASSES, GLAZES, OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
4Compositions for glass with special properties
0007for biologically-compatible glass
0021for dental use
Applicants
  • CORNING INCORPORATED [US]/[US]
Inventors
  • FU, Qiang
Agents
  • MAGAZINER, Russell S.
Priority Data
62/771,34126.11.2018US
62/796,85925.01.2019US
Publication Language English (EN)
Filing Language English (EN)
Designated States
Title
(EN) BIOACTIVE SILICATE GLASSES
(FR) VERRES BIOACTIFS AU SILICATE
Abstract
(EN)
An antibacterial composition, includes: a silicate-based glass material having a composition of: 55-70 wt.% SiO2, 0-10 wt.% B2O3, 3-18 wt.% P2O5, 0-10 wt.% Al2O3, 0-5 wt.% Li2O, 12-30 wt.% Na2O, 0-15 wt.% K2O, 0-10 wt.% MgO, 1-15 wt.% CaO, 2-20 wt.% MO, and 15-35 wt.% R2O, such that MO is the sum of MgO, CaO, SrO, and BaO, such that R2O is the sum of Na2O, K2O, Li2O, and Rb2O, and such that the silicate-based glass material can achieve a 6-log kill rate of at least one of E. coli, P. gingivalis, or S. mutans bacteria.
(FR)
L'invention concerne une composition antibactérienne comprenant : un matériau en verre à base de silicate présentant la composition suivante : 55 à 70 % en poids de SiO2, 0 à 10 % en poids de B2O3, 3 à 18 % en poids de P2O5, 0 à 10 % en poids d'Al2O3, 0 à 5 % en poids de Li2O, 12 à 30 % en poids de Na2O, 0 à 15 % en poids de K2O, 0 à 10 % en poids de MgO, 1 à 15 % en poids de CaO, 2 à 20 % en poids de MO, et 15 à 35 % en poids de R2O, de telle sorte que MO est la somme de MgO, CaO, SrO et BaO, de telle sorte que R2O est la somme de Na2O, K2O, Li2O, et Rb2O, et de telle sorte que le matériau en verre à base de silicate peut atteindre un taux de destruction de 6-log d'au moins une bactérie E. coli, P. gingivalis ou S. mutans
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