Search International and National Patent Collections
Some content of this application is unavailable at the moment.
If this situation persists, please contact us atFeedback&Contact
1. (WO2012170337) POLYCRYSTALLINE TRANSLUCENT ALUMINA DOPED WITH MAGNESIUM OXIDE/ZIRCONIUM FOR HIGH INTENSITY DISCHARGE LAMPS
Latest bibliographic data on file with the International Bureau

Pub. No.: WO/2012/170337 International Application No.: PCT/US2012/040705
Publication Date: 13.12.2012 International Filing Date: 04.06.2012
IPC:
H01J 9/24 (2006.01) ,H01J 61/30 (2006.01) ,H01J 61/82 (2006.01) ,C04B 35/115 (2006.01) ,C04B 35/119 (2006.01) ,C04B 35/634 (2006.01) ,C04B 35/636 (2006.01) ,C04B 35/638 (2006.01)
H ELECTRICITY
01
BASIC ELECTRIC ELEMENTS
J
ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
9
Apparatus or processes specially adapted for the manufacture of electric discharge tubes, discharge lamps, or parts thereof; Recovery of material from discharge tubes or lamps
24
Manufacture or joining of vessels, leading-in conductors, or bases
H ELECTRICITY
01
BASIC ELECTRIC ELEMENTS
J
ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
61
Gas-discharge or vapour-discharge lamps
02
Details
30
Vessels; Containers
H ELECTRICITY
01
BASIC ELECTRIC ELEMENTS
J
ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
61
Gas-discharge or vapour-discharge lamps
82
Lamps with high-pressure unconstricted discharge
C CHEMISTRY; METALLURGY
04
CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
B
LIME; MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
35
Shaped ceramic products characterised by their composition; Ceramic compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
01
based on oxides
10
based on aluminium oxide
111
Fine ceramics
115
Translucent or transparent products
C CHEMISTRY; METALLURGY
04
CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
B
LIME; MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
35
Shaped ceramic products characterised by their composition; Ceramic compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
01
based on oxides
10
based on aluminium oxide
111
Fine ceramics
117
Composites
119
with zirconium oxide
C CHEMISTRY; METALLURGY
04
CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
B
LIME; MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
35
Shaped ceramic products characterised by their composition; Ceramic compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
622
Forming processes; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
626
Preparing or treating the powders individually or as batches
63
using additives specially adapted for forming the products
632
Organic additives
634
Polymers
C CHEMISTRY; METALLURGY
04
CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
B
LIME; MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
35
Shaped ceramic products characterised by their composition; Ceramic compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
622
Forming processes; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
626
Preparing or treating the powders individually or as batches
63
using additives specially adapted for forming the products
632
Organic additives
636
Polysaccharides or derivatives thereof
C CHEMISTRY; METALLURGY
04
CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
B
LIME; MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
35
Shaped ceramic products characterised by their composition; Ceramic compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
622
Forming processes; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
626
Preparing or treating the powders individually or as batches
63
using additives specially adapted for forming the products
638
Removal thereof
Applicants:
GENERAL ELECTRIC COMPANY [US/US]; 1 River Road Schenectady, NY 12345, US (AllExceptUS)
DU, Fangming [CN/US]; US (UsOnly)
QIN, Shuyi [CN/CN]; CN (UsOnly)
BOYLE, Thomas, J. [US/US]; US (UsOnly)
DOBE, Zoltan [HU/HU]; HU (UsOnly)
Inventors:
DU, Fangming; US
QIN, Shuyi; CN
BOYLE, Thomas, J.; US
DOBE, Zoltan; HU
Agent:
DIMAURO, Peter, T.; General Electric Company Global Patent Operation 2 Corporate Drive, Suite 648 Shelton, CT 06484, US
Priority Data:
13/153,67606.06.2011US
Title (EN) POLYCRYSTALLINE TRANSLUCENT ALUMINA DOPED WITH MAGNESIUM OXIDE/ZIRCONIUM FOR HIGH INTENSITY DISCHARGE LAMPS
(FR) ALUMINE TRANSLUCIDE POLYCRISTALLINE DOPÉE AVEC DE L'OXYDE DE MAGNÉSIUM/DU ZIRCONIUM POUR DES LAMPES À DÉCHARGE À HAUTE INTENSITÉ
Abstract:
(EN) A polycrystalline body comprising a MgO/Zr02 - doped aluminum oxide in which alumina grains have an average size of at least 20μm and wherein the magnesium oxide is present in an amount of at least 250 ppm and the zirconium oxide is present in an amount of at least 20 ppm of the weight of the ceramic body, and the magnesium and zirconium oxides are present at a molar ratio of 1:2 to 15:1.
(FR) La présente invention concerne un corps polycristallin qui comprend un oxyde d'aluminium dopé par MgO/Zr02 dans lequel des grains d'alumine possèdent une taille moyenne d'au moins 20 μm, l'oxyde de magnésium étant présent dans une quantité d'au moins 250 ppm et l'oxyde de zirconium étant présent dans une quantité d'au moins 20 ppm du poids du corps en céramique, les oxydes de magnésium et de zirconium étant présents à un rapport molaire allant de 1:2 à 15:1.
Designated States: AE, AG, AL, AM, AO, AT, AU, AZ, BA, BB, BG, BH, BR, BW, BY, BZ, CA, CH, CL, CN, CO, CR, CU, CZ, DE, DK, DM, DO, DZ, EC, EE, EG, ES, FI, GB, GD, GE, GH, GM, GT, HN, HR, HU, ID, IL, IN, IS, JP, KE, KG, KM, KN, KP, KR, KZ, LA, LC, LK, LR, LS, LT, LU, LY, MA, MD, ME, MG, MK, MN, MW, MX, MY, MZ, NA, NG, NI, NO, NZ, OM, PE, PG, PH, PL, PT, QA, RO, RS, RU, RW, SC, SD, SE, SG, SK, SL, SM, ST, SV, SY, TH, TJ, TM, TN, TR, TT, TZ, UA, UG, US, UZ, VC, VN, ZA, ZM, ZW
African Regional Intellectual Property Organization (ARIPO) (BW, GH, GM, KE, LR, LS, MW, MZ, NA, RW, SD, SL, SZ, TZ, UG, ZM, ZW)
Eurasian Patent Organization (AM, AZ, BY, KG, KZ, RU, TJ, TM)
European Patent Office (AL, AT, BE, BG, CH, CY, CZ, DE, DK, EE, ES, FI, FR, GB, GR, HR, HU, IE, IS, IT, LT, LU, LV, MC, MK, MT, NL, NO, PL, PT, RO, RS, SE, SI, SK, SM, TR)
African Intellectual Property Organization (BF, BJ, CF, CG, CI, CM, GA, GN, GQ, GW, ML, MR, NE, SN, TD, TG)
Publication Language: English (EN)
Filing Language: English (EN)