DD297633A5 - Keramische koerper aus teilweise stabilisiertem zirkoniumdioxid - Google Patents

Keramische koerper aus teilweise stabilisiertem zirkoniumdioxid Download PDF

Info

Publication number: DD297633A5
Authority: DD; German Democratic Republic
Prior art keywords: zirconia; weight; slurry; monoclinic; ceramic
Prior art date: 1989-09-18

Application number

DD90343999A

Other languages

German (de)

English (en)

Inventor

Richard Everhart

Paul Bosemworth

Kenneth Butcher

Hoffmann Matthias

Original Assignee

Alusuisse-Lonza Services Ag,Ch

Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)

1989-09-18

Filing date

1990-09-13

Publication date

1992-01-16

1990-09-13 Application filed by Alusuisse-Lonza Services Ag,Ch filed Critical Alusuisse-Lonza Services Ag,Ch

1992-01-16 Publication of DD297633A5 publication Critical patent/DD297633A5/de

Links

MCMNRKCIXSYSNV-UHFFFAOYSA-N ZrO2 Inorganic materials O=[Zr]=O MCMNRKCIXSYSNV-UHFFFAOYSA-N 0.000 title claims abstract description 176
239000000919 ceramic Substances 0.000 title claims abstract description 54
RVTZCBVAJQQJTK-UHFFFAOYSA-N oxygen(2-);zirconium(4+) Chemical compound [O-2].[O-2].[Zr+4] RVTZCBVAJQQJTK-UHFFFAOYSA-N 0.000 title claims abstract description 14
239000002002 slurry Substances 0.000 claims abstract description 52
238000000034 method Methods 0.000 claims abstract description 14
238000004519 manufacturing process Methods 0.000 claims abstract description 8
230000009974 thixotropic effect Effects 0.000 claims abstract description 8
229910052751 metal Inorganic materials 0.000 claims abstract description 6
239000002184 metal Substances 0.000 claims abstract description 6
230000008569 process Effects 0.000 claims abstract description 6
239000000463 material Substances 0.000 claims description 46
CPLXHLVBOLITMK-UHFFFAOYSA-N magnesium oxide Inorganic materials [Mg]=O CPLXHLVBOLITMK-UHFFFAOYSA-N 0.000 claims description 28
239000003381 stabilizer Substances 0.000 claims description 23
239000011230 binding agent Substances 0.000 claims description 20
239000000395 magnesium oxide Substances 0.000 claims description 20
239000000203 mixture Substances 0.000 claims description 20
UEGPKNKPLBYCNK-UHFFFAOYSA-L magnesium acetate Chemical compound [Mg+2].CC([O-])=O.CC([O-])=O UEGPKNKPLBYCNK-UHFFFAOYSA-L 0.000 claims description 19
235000011285 magnesium acetate Nutrition 0.000 claims description 19
239000011654 magnesium acetate Substances 0.000 claims description 19
229940069446 magnesium acetate Drugs 0.000 claims description 19
XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 15
239000007864 aqueous solution Substances 0.000 claims description 11
AXZKOIWUVFPNLO-UHFFFAOYSA-N magnesium;oxygen(2-) Chemical compound [O-2].[Mg+2] AXZKOIWUVFPNLO-UHFFFAOYSA-N 0.000 claims description 11
GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 claims description 10
239000000292 calcium oxide Substances 0.000 claims description 9
ODINCKMPIJJUCX-UHFFFAOYSA-N calcium oxide Inorganic materials [Ca]=O ODINCKMPIJJUCX-UHFFFAOYSA-N 0.000 claims description 9
235000012255 calcium oxide Nutrition 0.000 claims description 9
239000006260 foam Substances 0.000 claims description 9
239000002245 particle Substances 0.000 claims description 8
QTBSBXVTEAMEQO-UHFFFAOYSA-M Acetate Chemical compound CC([O-])=O QTBSBXVTEAMEQO-UHFFFAOYSA-M 0.000 claims description 7
BRPQOXSCLDDYGP-UHFFFAOYSA-N calcium oxide Chemical compound [O-2].[Ca+2] BRPQOXSCLDDYGP-UHFFFAOYSA-N 0.000 claims description 7
239000007787 solid Substances 0.000 claims description 6
229920002472 Starch Polymers 0.000 claims description 5
238000010438 heat treatment Methods 0.000 claims description 5
239000008107 starch Substances 0.000 claims description 5
235000019698 starch Nutrition 0.000 claims description 5
CETPSERCERDGAM-UHFFFAOYSA-N ceric oxide Chemical compound O=[Ce]=O CETPSERCERDGAM-UHFFFAOYSA-N 0.000 claims description 2
229910000420 cerium oxide Inorganic materials 0.000 claims description 2
229910000422 cerium(IV) oxide Inorganic materials 0.000 claims description 2
229920001971 elastomer Polymers 0.000 claims description 2
238000001914 filtration Methods 0.000 claims description 2
BMMGVYCKOGBVEV-UHFFFAOYSA-N oxo(oxoceriooxy)cerium Chemical compound [Ce]=O.O=[Ce]=O BMMGVYCKOGBVEV-UHFFFAOYSA-N 0.000 claims description 2
239000005060 rubber Substances 0.000 claims description 2
OGIDPMRJRNCKJF-UHFFFAOYSA-N titanium oxide Inorganic materials [Ti]=O OGIDPMRJRNCKJF-UHFFFAOYSA-N 0.000 claims description 2
230000035939 shock Effects 0.000 abstract description 12
229910002077 partially stabilized zirconia Inorganic materials 0.000 abstract description 4
239000000969 carrier Substances 0.000 abstract description 2
239000003054 catalyst Substances 0.000 abstract description 2
230000000704 physical effect Effects 0.000 abstract description 2
239000007788 liquid Substances 0.000 abstract 1
229910010293 ceramic material Inorganic materials 0.000 description 11
238000002156 mixing Methods 0.000 description 10
239000000758 substrate Substances 0.000 description 9
230000009466 transformation Effects 0.000 description 7
239000000243 solution Substances 0.000 description 6
230000000087 stabilizing effect Effects 0.000 description 6
238000001035 drying Methods 0.000 description 5
229920005830 Polyurethane Foam Polymers 0.000 description 4
PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 4
239000006261 foam material Substances 0.000 description 4
239000011496 polyurethane foam Substances 0.000 description 4
FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 description 3
QDOXWKRWXJOMAK-UHFFFAOYSA-N dichromium trioxide Chemical compound O=[Cr]O[Cr]=O QDOXWKRWXJOMAK-UHFFFAOYSA-N 0.000 description 3
238000010304 firing Methods 0.000 description 3
239000011148 porous material Substances 0.000 description 3
239000007858 starting material Substances 0.000 description 3
238000012360 testing method Methods 0.000 description 3
VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 2
238000007605 air drying Methods 0.000 description 2
230000008901 benefit Effects 0.000 description 2
RKTYLMNFRDHKIL-UHFFFAOYSA-N copper;5,10,15,20-tetraphenylporphyrin-22,24-diide Chemical group [Cu+2].C1=CC(C(=C2C=CC([N-]2)=C(C=2C=CC=CC=2)C=2C=CC(N=2)=C(C=2C=CC=CC=2)C2=CC=C3[N-]2)C=2C=CC=CC=2)=NC1=C3C1=CC=CC=C1 RKTYLMNFRDHKIL-UHFFFAOYSA-N 0.000 description 2
239000010987 cubic zirconia Substances 0.000 description 2
238000011065 in-situ storage Methods 0.000 description 2
229910052749 magnesium Inorganic materials 0.000 description 2
239000011777 magnesium Substances 0.000 description 2
229910002076 stabilized zirconia Inorganic materials 0.000 description 2
239000000126 substance Substances 0.000 description 2
238000000844 transformation Methods 0.000 description 2
239000005995 Aluminium silicate Substances 0.000 description 1
241000500881 Lepisma Species 0.000 description 1
230000035508 accumulation Effects 0.000 description 1
238000009825 accumulation Methods 0.000 description 1
239000000654 additive Substances 0.000 description 1
ILRRQNADMUWWFW-UHFFFAOYSA-K aluminium phosphate Chemical compound O1[Al]2OP1(=O)O2 ILRRQNADMUWWFW-UHFFFAOYSA-K 0.000 description 1
235000012211 aluminium silicate Nutrition 0.000 description 1
238000013459 approach Methods 0.000 description 1
239000000440 bentonite Substances 0.000 description 1
229910000278 bentonite Inorganic materials 0.000 description 1
SVPXDRXYRYOSEX-UHFFFAOYSA-N bentoquatam Chemical compound O.O=[Si]=O.O=[Al]O[Al]=O SVPXDRXYRYOSEX-UHFFFAOYSA-N 0.000 description 1
230000015572 biosynthetic process Effects 0.000 description 1
238000001354 calcination Methods 0.000 description 1
239000002775 capsule Substances 0.000 description 1
238000005524 ceramic coating Methods 0.000 description 1
230000000052 comparative effect Effects 0.000 description 1
239000000470 constituent Substances 0.000 description 1
238000010924 continuous production Methods 0.000 description 1
238000001816 cooling Methods 0.000 description 1
238000005336 cracking Methods 0.000 description 1
KZHJGOXRZJKJNY-UHFFFAOYSA-N dioxosilane;oxo(oxoalumanyloxy)alumane Chemical compound O=[Si]=O.O=[Si]=O.O=[Al]O[Al]=O.O=[Al]O[Al]=O.O=[Al]O[Al]=O KZHJGOXRZJKJNY-UHFFFAOYSA-N 0.000 description 1
230000009977 dual effect Effects 0.000 description 1
230000003628 erosive effect Effects 0.000 description 1
238000002474 experimental method Methods 0.000 description 1
239000012467 final product Substances 0.000 description 1
238000005189 flocculation Methods 0.000 description 1
230000016615 flocculation Effects 0.000 description 1
230000002496 gastric effect Effects 0.000 description 1
238000005469 granulation Methods 0.000 description 1
230000003179 granulation Effects 0.000 description 1
238000005338 heat storage Methods 0.000 description 1
238000007654 immersion Methods 0.000 description 1
238000005470 impregnation Methods 0.000 description 1
239000004615 ingredient Substances 0.000 description 1
150000002500 ions Chemical class 0.000 description 1
NLYAJNPCOHFWQQ-UHFFFAOYSA-N kaolin Chemical compound O.O.O=[Al]O[Si](=O)O[Si](=O)O[Al]=O NLYAJNPCOHFWQQ-UHFFFAOYSA-N 0.000 description 1
238000004898 kneading Methods 0.000 description 1
229910002085 magnesia-stabilized zirconia Inorganic materials 0.000 description 1
229910001092 metal group alloy Inorganic materials 0.000 description 1
229920000609 methyl cellulose Polymers 0.000 description 1
239000001923 methylcellulose Substances 0.000 description 1
235000010981 methylcellulose Nutrition 0.000 description 1
229910052863 mullite Inorganic materials 0.000 description 1
239000011368 organic material Substances 0.000 description 1
230000035699 permeability Effects 0.000 description 1
238000002360 preparation method Methods 0.000 description 1
238000012545 processing Methods 0.000 description 1
239000000047 product Substances 0.000 description 1
230000003134 recirculating effect Effects 0.000 description 1
230000003362 replicative effect Effects 0.000 description 1
238000000518 rheometry Methods 0.000 description 1
239000000377 silicon dioxide Substances 0.000 description 1
235000012239 silicon dioxide Nutrition 0.000 description 1
238000005245 sintering Methods 0.000 description 1
239000006104 solid solution Substances 0.000 description 1
230000006641 stabilisation Effects 0.000 description 1
238000011105 stabilization Methods 0.000 description 1
238000005382 thermal cycling Methods 0.000 description 1
239000004408 titanium dioxide Substances 0.000 description 1
230000007704 transition Effects 0.000 description 1
239000000230 xanthan gum Substances 0.000 description 1
229920001285 xanthan gum Polymers 0.000 description 1
229940082509 xanthan gum Drugs 0.000 description 1
235000010493 xanthan gum Nutrition 0.000 description 1

Classifications

- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B38/00—Porous mortars, concrete, artificial stone or ceramic ware; Preparation thereof
- C04B38/06—Porous mortars, concrete, artificial stone or ceramic ware; Preparation thereof by burning-out added substances by burning natural expanding materials or by sublimating or melting out added substances
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
- C04B35/01—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics
- C04B35/48—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics based on zirconium or hafnium oxides, zirconates, zircon or hafnates
- C04B35/486—Fine ceramics
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D39/00—Filtering material for liquid or gaseous fluids
- B01D39/14—Other self-supporting filtering material ; Other filtering material
- B01D39/20—Other self-supporting filtering material ; Other filtering material of inorganic material, e.g. asbestos paper, metallic filtering material of non-woven wires
- B01D39/2068—Other inorganic materials, e.g. ceramics
- B01D39/2093—Ceramic foam
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
- C04B35/01—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics
- C04B35/48—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics based on zirconium or hafnium oxides, zirconates, zircon or hafnates
- C04B35/49—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics based on zirconium or hafnium oxides, zirconates, zircon or hafnates containing also titanium oxides or titanates
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B38/00—Porous mortars, concrete, artificial stone or ceramic ware; Preparation thereof
- C04B38/06—Porous mortars, concrete, artificial stone or ceramic ware; Preparation thereof by burning-out added substances by burning natural expanding materials or by sublimating or melting out added substances
- C04B38/0615—Porous mortars, concrete, artificial stone or ceramic ware; Preparation thereof by burning-out added substances by burning natural expanding materials or by sublimating or melting out added substances the burned-out substance being a monolitic element having approximately the same dimensions as the final article, e.g. a porous polyurethane sheet or a prepreg obtained by bonding together resin particles
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/24—Structurally defined web or sheet [e.g., overall dimension, etc.]
- Y10T428/24149—Honeycomb-like
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/24—Structurally defined web or sheet [e.g., overall dimension, etc.]
- Y10T428/24149—Honeycomb-like
- Y10T428/24165—Hexagonally shaped cavities

Landscapes

Chemical & Material Sciences (AREA)
Engineering & Computer Science (AREA)
Ceramic Engineering (AREA)
Materials Engineering (AREA)
Structural Engineering (AREA)
Organic Chemistry (AREA)
Composite Materials (AREA)
Manufacturing & Machinery (AREA)
Inorganic Chemistry (AREA)
Life Sciences & Earth Sciences (AREA)
Geology (AREA)
Chemical Kinetics & Catalysis (AREA)
Compositions Of Oxide Ceramics (AREA)
Manufacture And Refinement Of Metals (AREA)

DD90343999A 1989-09-18 1990-09-13 Keramische koerper aus teilweise stabilisiertem zirkoniumdioxid DD297633A5 (de)

Applications Claiming Priority (1)

Application Number	Priority Date	Filing Date	Title
US07/408,739 US4923830A (en)	1989-09-18	1989-09-18	Ceramic bodies formed from partially stabilized zirconia

Publications (1)

Publication Number	Publication Date
DD297633A5 true DD297633A5 (de)	1992-01-16

Family

ID=23617555

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
DD90343999A DD297633A5 (de)	1989-09-18	1990-09-13	Keramische koerper aus teilweise stabilisiertem zirkoniumdioxid

Country Status (12)

Country	Link
US (1)	US4923830A (fr)
EP (1)	EP0419407B1 (fr)
JP (1)	JPH03137073A (fr)
KR (1)	KR910006191A (fr)
CN (1)	CN1051034A (fr)
AU (1)	AU6237790A (fr)
BR (1)	BR9003679A (fr)
CA (1)	CA2019534C (fr)
DD (1)	DD297633A5 (fr)
DE (1)	DE59009917D1 (fr)
MX (1)	MX173953B (fr)
PL (1)	PL286902A1 (fr)

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US7615184B2 (en) *	2006-01-25	2009-11-10	Alexander Lobovsky	Metal, ceramic and cermet articles formed from low viscosity aqueous slurries
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PT103866A (pt) *	2007-10-25	2009-02-25	Claudia Marina Souto Ranito	Método de fabrico de estruturas cerâmicas porosas à base de fosfatos de cálcio, alumina ou zircónia
CN101244944B (zh) *	2008-03-19	2010-06-02	田维	一种电子工业用氧化锆复合窑具及其制造方法
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WO2012018890A2 (fr)	2010-08-06	2012-02-09	Arizona Board Of Regents For And On Behalf Of Arizona State University	Fabrication de matériaux poreux faisant appel à des gels composites inorganiques-organiques interpénétrés
CN103687821B (zh) *	2011-07-21	2016-05-11	旭硝子株式会社	熔融玻璃搬运设备元件和熔融玻璃搬运设备元件的制造方法以及玻璃制造装置
EP2758355B1 (fr)	2011-09-21	2023-05-10	Arizona Board of Regents, a Body Corporate of the State of Arizona acting for and on behalf of Arizona State University	Procédé de préparation de matériaux géopolymères
WO2013052696A1 (fr) *	2011-10-04	2013-04-11	Pressure Biosciences, Inc.	Système de confinement d'échantillon à haute pression pour mesures électromagnétiques
US10170759B2 (en)	2013-06-21	2019-01-01	Arizona Board Of Regents On Behalf Of Arizona State University	Metal oxides from acidic solutions
JP6261316B2 (ja) *	2013-12-13	2018-01-17	三井金属鉱業株式会社	多孔質セラミックスの製造方法、多孔質セラミックス、セッターおよび焼成治具
US10926241B2 (en)	2014-06-12	2021-02-23	Arizona Board Of Regents On Behalf Of Arizona State University	Carbon dioxide adsorbents
US10035174B2 (en)	2015-02-09	2018-07-31	United Technologies Corporation	Open-cell reticulated foam
RU2635161C1 (ru) *	2016-05-17	2017-11-09	федеральное государственное бюджетное образовательное учреждение высшего образования "Пермский национальный исследовательский политехнический университет"	Способ изготовления высокопористого диоксида циркония
DE102016210378A1 (de)	2016-06-10	2017-12-14	Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V.	Zirkonoxid-keramik, zellularer werkstoff daraus und verfahren zur herstellung der zirkonoxid-keramik
US10829382B2 (en)	2017-01-20	2020-11-10	Skysong Innovations	Aluminosilicate nanorods
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US4391918A (en) *	1981-01-22	1983-07-05	Swiss Aluminium Ltd.	Ceramic foam filter and aqueous slurry for making same
JPS58120571A (ja) *	1982-01-09	1983-07-18	日本特殊陶業株式会社	高靭性セラミツク焼結体
US4760038A (en) *	1983-09-01	1988-07-26	Astro Met Associates, Inc.	Ceramic composition
US4568595A (en) *	1984-04-26	1986-02-04	Morris Jeffrey R	Coated ceramic structure and method of making same
US4610832A (en) *	1984-09-26	1986-09-09	Swiss Aluminium Ltd.	Process for preparing a ceramic foam
JPS61141682A (ja) *	1984-12-12	1986-06-28	東芝セラミツクス株式会社	セラミツクフオ−ムとその製造方法
CN1014987B (zh) *	1986-02-03	1991-12-04	迪迪尔制品公司	用氧化镁部分稳定的氧化锆材料及其制备方法

1989
- 1989-09-18 US US07/408,739 patent/US4923830A/en not_active Expired - Fee Related
1990
- 1990-06-21 CA CA002019534A patent/CA2019534C/fr not_active Expired - Fee Related
- 1990-06-26 MX MX021322A patent/MX173953B/es unknown
- 1990-07-27 BR BR909003679A patent/BR9003679A/pt not_active Application Discontinuation
- 1990-09-06 EP EP90810678A patent/EP0419407B1/fr not_active Expired - Lifetime
- 1990-09-06 DE DE59009917T patent/DE59009917D1/de not_active Expired - Fee Related
- 1990-09-11 AU AU62377/90A patent/AU6237790A/en not_active Abandoned
- 1990-09-13 DD DD90343999A patent/DD297633A5/de not_active IP Right Cessation
- 1990-09-14 KR KR1019900014536A patent/KR910006191A/ko not_active Withdrawn
- 1990-09-14 PL PL28690290A patent/PL286902A1/xx unknown
- 1990-09-18 JP JP2248565A patent/JPH03137073A/ja active Pending
- 1990-09-18 CN CN90107925A patent/CN1051034A/zh active Pending

Also Published As

Publication number	Publication date
CN1051034A (zh)	1991-05-01
DE59009917D1 (de)	1996-01-11
US4923830A (en)	1990-05-08
AU6237790A (en)	1991-03-21
CA2019534A1 (fr)	1991-03-18
JPH03137073A (ja)	1991-06-11
EP0419407A3 (en)	1991-12-04
KR910006191A (ko)	1991-04-27
PL286902A1 (en)	1991-06-03
MX173953B (es)	1994-04-11
EP0419407B1 (fr)	1995-11-29
CA2019534C (fr)	1996-01-16
EP0419407A2 (fr)	1991-03-27
BR9003679A (pt)	1991-09-03

Legal Events

Date	Code	Title	Description
1997-06-19	ENJ	Ceased due to non-payment of renewal fee

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