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1. (WO1998050315) ORGANIC LENS MOLDS IN INORGANIC GLASS AND NOVEL INORGANIC GLASSES
Latest bibliographic data on file with the International Bureau

Pub. No.: WO/1998/050315 International Application No.: PCT/EP1998/002806
Publication Date: 12.11.1998 International Filing Date: 06.05.1998
Chapter 2 Demand Filed: 14.10.1998
IPC:
B29D 11/00 (2006.01) ,C03C 3/093 (2006.01) ,C03C 3/11 (2006.01) ,C03C 21/00 (2006.01) ,G02B 1/00 (2006.01)
B PERFORMING OPERATIONS; TRANSPORTING
29
WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
D
PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE
11
Producing optical elements, e.g. lenses or prisms
C CHEMISTRY; METALLURGY
03
GLASS; MINERAL OR SLAG WOOL
C
CHEMICAL COMPOSITION OF GLASSES, GLAZES, OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
3
Glass compositions
04
containing silica
076
with 40% to 90% silica by weight
089
containing boron
091
containing aluminium
093
containing zinc or zirconium
C CHEMISTRY; METALLURGY
03
GLASS; MINERAL OR SLAG WOOL
C
CHEMICAL COMPOSITION OF GLASSES, GLAZES, OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
3
Glass compositions
04
containing silica
076
with 40% to 90% silica by weight
11
containing halogen or nitrogen
C CHEMISTRY; METALLURGY
03
GLASS; MINERAL OR SLAG WOOL
C
CHEMICAL COMPOSITION OF GLASSES, GLAZES, OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
21
Treatment of glass, not in the form of fibres or filaments, by diffusing ions or metals into the surface
G PHYSICS
02
OPTICS
B
OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS
1
Optical elements characterised by the material of which they are made; Optical coatings for optical elements
Applicants:
CORNING INCORPORATED [US/US]; 1 Riverfront Plaza Corning, NY 14831, US (AllExceptUS)
RICOULT, Daniel [FR/FR]; FR (UsOnly)
LABORDE, Pascale [FR/US]; US (UsOnly)
Inventors:
RICOULT, Daniel; FR
LABORDE, Pascale; US
Agent:
LE ROUX, Martine ; Cabinet Beau de Loménie 158, rue de l'Université F-75340 Paris Cedex 07, FR
Priority Data:
60/051,59902.07.1997US
97/0563107.05.1997FR
Title (EN) ORGANIC LENS MOLDS IN INORGANIC GLASS AND NOVEL INORGANIC GLASSES
(FR) MOULES POUR VERRES ORGANIQUES, REALISES EN VERRE INORGANIQUE, ET NOUVEAUX VERRES INORGANIQUES
Abstract:
(EN) The principal object of the present invention is organic lens molds, constituted wholly or in part of at least one specific inorganic glass, advantageously strengthened by a chemical tempering or a thermal tempering. Said glass has the following composition, expressed in percentages by weight: SiO2 56-66, Al2O3 2.5-10, B2O3 0.5-7, Li2O 0-3, Na2O 8-15, K2O 3-12, with Li2O + Na2O + K2O 12-20, ZnO 2-12, MgO 0-3, TiO2 0-0.5, ZrO2 1-9, CaO 0-1, BaO 0-2, SrO 0-2, with MgO + CaO + SrO + BaO 0-5, Cl 0-0.5, As2O3 + sb2O3 0-1. The invention also deals with novel inorganic glasses which have the above composition with a single exception relative to the Al2O3 content: Al2O3 2.5-4.
(FR) La présente invention concerne principalement des moules pour verres organiques, ces moules étant constitués totalement ou en partie d'au moins un verre inorganique spécifique, renforcé de manière avantageuse par une trempe chimique ou par une trempe thermique. Ce verre possède la composition suivante exprimée en pourcentages pondéraux: SiO2 56-66, Al2O3 2,5-10, B2O3 0,5-7, Li2O 0-3, Na2O 8-15, K2O 3-12, les pourcentages de Li2O + Na2O + K2O étant compris entre 12 et 20, ZnO 2-12, MgO 0-3, TiO2 0-0,5, ZrO2 1-9, CaO 0-1, BaO 0-2, SrO 0-2, les pourcentages de MgO + CaO + SrO + BaO étant compris entre 0 et 5, Cl 0-0,5, et As2O3 + sb2O3 0-1. L'invention concerne également des nouveaux verres inorganiques dont la composition est celle ci-dessus décrite, à l'exception de la teneur en Al2O3, laquelle est comprise entre 2,5 et 4 %.
Designated States: JP, US
European Patent Office (AT, BE, CH, CY, DE, DK, ES, FI, FR, GB, GR, IE, IT, LU, MC, NL, PT, SE)
Publication Language: English (EN)
Filing Language: English (EN)
Also published as:
EP0980341US6436858JP2001523208