FI93540B - Förfarande för producering av en självbärande keramisk sammansatt struktur samt en självbärande keramisk sammansatt struktur - Google Patents
Förfarande för producering av en självbärande keramisk sammansatt struktur samt en självbärande keramisk sammansatt struktur Download PDFInfo
- Publication number
- FI93540B FI93540B FI880121A FI880121A FI93540B FI 93540 B FI93540 B FI 93540B FI 880121 A FI880121 A FI 880121A FI 880121 A FI880121 A FI 880121A FI 93540 B FI93540 B FI 93540B
- Authority
- FI
- Finland
- Prior art keywords
- carbide
- metal
- filler
- parent metal
- carbon
- Prior art date
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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
- C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C43/00—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor
- B29C43/02—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor of articles of definite length, i.e. discrete articles
- B29C43/10—Isostatic pressing, i.e. using non-rigid pressure-exerting members against rigid parts or dies
-
- 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
- C04B35/515—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on non-oxide ceramics
- C04B35/56—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on non-oxide ceramics based on carbides or oxycarbides
- C04B35/5607—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on non-oxide ceramics based on carbides or oxycarbides based on refractory metal carbides
- C04B35/5611—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on non-oxide ceramics based on carbides or oxycarbides based on refractory metal carbides based on titanium carbides
-
- 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
- C04B35/515—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on non-oxide ceramics
- C04B35/56—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on non-oxide ceramics based on carbides or oxycarbides
- C04B35/5607—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on non-oxide ceramics based on carbides or oxycarbides based on refractory metal carbides
- C04B35/5622—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on non-oxide ceramics based on carbides or oxycarbides based on refractory metal carbides based on zirconium or hafnium carbides
-
- 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
- C04B35/622—Forming processes; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
- C04B35/64—Burning or sintering processes
- C04B35/65—Reaction sintering of free metal- or free silicon-containing compositions
- C04B35/652—Directional oxidation or solidification, e.g. Lanxide process
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C43/00—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor
- B29C43/32—Component parts, details or accessories; Auxiliary operations
- B29C43/36—Moulds for making articles of definite length, i.e. discrete articles
- B29C43/361—Moulds for making articles of definite length, i.e. discrete articles with pressing members independently movable of the parts for opening or closing the mould, e.g. movable pistons
- B29C2043/3615—Forming elements, e.g. mandrels or rams or stampers or pistons or plungers or punching devices
- B29C2043/3628—Forming elements, e.g. mandrels or rams or stampers or pistons or plungers or punching devices moving inside a barrel or container like sleeve
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
- B29L2023/00—Tubular articles
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Organic Chemistry (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Inorganic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Mechanical Engineering (AREA)
- Ceramic Products (AREA)
- Compositions Of Oxide Ceramics (AREA)
- Carbon And Carbon Compounds (AREA)
- Powder Metallurgy (AREA)
- Inorganic Fibers (AREA)
- Laminated Bodies (AREA)
- Manufacture Of Alloys Or Alloy Compounds (AREA)
- Materials For Medical Uses (AREA)
- Catalysts (AREA)
Claims (17)
1. Förfarande för producering av en självbärande keramisk sammansatt struktur som innefattar en metallkarbid, kanne tecknat 5 därav, att förfarandet innefattar: (a) att man hiller en massa av smält grundmetall i en väsentligen inert atmosfär vilken metall väljs frän en grupp som bestär av titan, hafnium och zirkonium, i ytkontakt med en permeabel massa som innefattar (i) 10 ett fyllnadsämne, och (ii) en kolkalla för reaktion med nämnda smälta metall för att bilda en karbid av den smälta metallen, varvid kolande-len av kolkällan inte är närvarande i mera än en stökiömetriskt mängd; (b) att man upprätthäller ytkontakten för en tid som räcker tili för 15 att ästadkoma infiltrering av smält grundmetall innanför den permeabla massan och för att tilläta reaktion av den smälta grundmetallen med kolkällan för att bilda en grundmetallkarbid; och (c) att man lätar infiltreringen och reaktionen fortsätta för en tid 20 som är tillräcklig för att ätminstone väsentligen läta nämnda reaktion gä till slut och därvid producera önskade självbärande keramiska sam-mansatta struktur.
2. Förfarande enligt patentkrav 1, kännetecknat därav, att 25 fyllnadsämnet innefattar en karbid av titan, hafnium eller zirkonium.
3. Förfarande enligt patentkrav 1, kännetecknat därav, att fyllnadsämnet innefattar ett väsentligen inert fyllnadsämne. 30
4. Förfarande enligt patentkrav 1,2 eller 3, kännetecknat därav, att kolkällan är elementärt koi.
5. Förfarande enligt patentkrav 4, kännetecknat därav, att kolkällan innefattar petroleumkoks. 35 93540
6. Förfarande enligt patentkrav 1,2 eller 3, kännetecknat därav, att kolkällan innefattar metallkarbid som kan reduceras av den smälta grundmetallen. 5
7. Förfarande enligt patentkrav 6, kännetecknat därav, att den reducerbara metallkarbiden väljes frän en grupp som bestär av mo-lybdenkarbid, kromkarbid, koboltkarbid, järnkarbid, nickelkarbid och vanadinkarbid. 10
8. Förfarande enligt patentkrav 1,2 eller 3, kännetecknat därav, att fyllnadsämnena innefattar ett material som väljes frän en grupp som bestär av fibrer, här, partiklar, pulver, stavar, viratyger, eldfasta tyger, nätformiga skum, skivor, skivstycken, fasta sfärer och ihäliga sfärer. 15
9. Förfarande enligt patentkrav 1,2 eller 3, kännetecknat därav, att den permeabla massan är en förform av pä förhand bestämd form, och infiltreringen och reaktionen inträffar genom ätminstone en del av volymen av förformen varvid nämnda självbärande kropp som er- 20 hällits i steg (c) har en konfiguration som svarar mot en del av förformen.
10. Förfarande enligt patentkrav 1,2 eller 3, kännetecknat därav, att den genomträngliga massan innefattar mindre än den stökiö- 25 metriska mängden av kolkällan för att den skall reagera med den smälta grundmetallen, vid vilket förfarande inte ali smält grundmetall som infiltrerar massan reagerar, genom att därvid producera en självbärande kropp som ocksä innehäller icke-reagerad grundmetall. 30
11. Förfarande enligt patentkrav 2, kännetecknat därav, att karbiden är en metallkarbid där metallen motsvarar grundmetallen.
12. Förfarande enligt patentkrav 2, kännetecknat därav, att fyllnadsämneskarbiden innefattar en metall som skiljer sig frän 35 grundmetallen, och att fyllnadsämneskarbiden blandas med grundmetallen II 93540 för att därvid bilda en tertiär fast lösning av grundmetallen, nämnda avvikande metall och koi.
13. Förfarande enligt patentkrav 1, kännetecknat därav, 5 att fyllnadsämnet vidare innefattar ett väsentligen inert fyllnadsäm- nesmaterial.
14. En självbärande keramisk sammansatt struktur, känneteck-n a d därav, att den innefattar (a) ett fyllnadsämne som är (i) en 10 karbid av titan, hafnium och/eller zirkonium; eller (ii) ett material som är väsentligen inert för smält grundmetall och för reaktionspro-dukten som bildas; och (b) en keramisk matris som bäddar in fyllnadsämnet, varvid den keramiska matrisen innefattar en karbid av titan, hafnium och/eller zirkonium och som karakteriseras som reaktionsprodukten 15 mellan en av nämnda metaller och en kolinnehällande förening i stökiö-metrisk mängd sä att väsentligen inget icke-reagerat koi blivit kvar.
15. Sammansatt struktur enligt patentkrav 14, kännetecknad därav, att fyllnadsämnet innefattar en metallkarbid som skiljer sig 20 frän metallkarbiden av den keramiska matrisen, varvid nämnda samman-satta struktur innefattar tertiär fast lösning.
16. Sammansatt struktur enligt patentkrav 14, kännetecknad därav, att den innefattar ett extra fyllnadsämne som är väsentligen 25 inert.
17. Sammansatt struktur enligt patentkrav 14, kännetecknad därav, att fyllnadsämnet innefattar en metallkarbid som awiker frän karbiden i den keramiska matrisen. 30
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US07/002,823 US4891338A (en) | 1987-01-13 | 1987-01-13 | Production of metal carbide articles |
| US282387 | 1988-12-09 |
Publications (4)
| Publication Number | Publication Date |
|---|---|
| FI880121A0 FI880121A0 (sv) | 1988-01-12 |
| FI880121A FI880121A (sv) | 1988-07-14 |
| FI93540B true FI93540B (sv) | 1995-01-13 |
| FI93540C FI93540C (sv) | 1995-04-25 |
Family
ID=21702682
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FI880121A FI93540C (sv) | 1987-01-13 | 1988-01-12 | Förfarande för producering av en självbärande keramisk sammansatt struktur samt en självbärande keramisk sammansatt struktur |
Country Status (32)
| Country | Link |
|---|---|
| US (1) | US4891338A (sv) |
| EP (1) | EP0277085B1 (sv) |
| JP (2) | JPH06665B2 (sv) |
| KR (1) | KR950014719B1 (sv) |
| CN (1) | CN88100073A (sv) |
| AT (1) | ATE70038T1 (sv) |
| AU (1) | AU601539B2 (sv) |
| BG (1) | BG60293B2 (sv) |
| BR (1) | BR8800082A (sv) |
| CA (1) | CA1327492C (sv) |
| CS (1) | CS276459B6 (sv) |
| DD (1) | DD284699A5 (sv) |
| DE (1) | DE3866550D1 (sv) |
| DK (1) | DK11188A (sv) |
| ES (1) | ES2038782T3 (sv) |
| FI (1) | FI93540C (sv) |
| GR (1) | GR3003821T3 (sv) |
| HU (1) | HU205335B (sv) |
| IE (1) | IE61458B1 (sv) |
| IL (1) | IL85071A (sv) |
| IN (1) | IN169041B (sv) |
| MX (1) | MX166268B (sv) |
| NO (1) | NO880096L (sv) |
| NZ (1) | NZ223094A (sv) |
| PH (1) | PH26252A (sv) |
| PL (1) | PL157986B1 (sv) |
| PT (1) | PT86537B (sv) |
| RO (1) | RO100373B1 (sv) |
| RU (1) | RU1838279C (sv) |
| TR (1) | TR24678A (sv) |
| YU (1) | YU46856B (sv) |
| ZA (1) | ZA88177B (sv) |
Families Citing this family (39)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5401694A (en) * | 1987-01-13 | 1995-03-28 | Lanxide Technology Company, Lp | Production of metal carbide articles |
| US5254509A (en) * | 1987-01-13 | 1993-10-19 | Lanxide Technology Company, Lp | Production of metal carbide articles |
| US5296417A (en) * | 1987-07-15 | 1994-03-22 | Lanxide Technology Company, Lp | Self-supporting bodies |
| US5180697A (en) * | 1987-07-15 | 1993-01-19 | Lanxide Technology Company, Lp | Process for preparing self-supporting bodies and products produced thereby |
| US5403790A (en) * | 1987-12-23 | 1995-04-04 | Lanxide Technology Company, Lp | Additives for property modification in ceramic composite bodies |
| AU620360B2 (en) * | 1987-12-23 | 1992-02-20 | Lanxide Corporation | A method of producing and modifying the properties of ceramic composite bodies |
| US5298051A (en) * | 1987-12-23 | 1994-03-29 | Lanxide Technology Company, Lp | Method of modifying ceramic composite bodies by a post-treatment process and articles produced thereby |
| US5143870A (en) * | 1987-12-23 | 1992-09-01 | Lanxide Technology Company, Lp | Method of modifying ceramic composite bodies by a post-treatment process and articles produced thereby |
| US5162098A (en) * | 1987-12-23 | 1992-11-10 | Lanxide Technology Company, Lp | Method of modifying ceramic composite bodies by a post-treatment process and articles produced thereby |
| US5079195A (en) * | 1988-01-15 | 1992-01-07 | Massachusetts Institute Of Technology | Method of preparing refractory silicon carbide composites and coatings |
| GB8826300D0 (en) * | 1988-11-10 | 1989-04-19 | Atomic Energy Authority Uk | A method of producing silicon carbide-based bodies |
| EP0372708A1 (en) * | 1988-11-10 | 1990-06-13 | United Kingdom Atomic Energy Authority | A method of producing a silicon carbide-based body |
| US5149678A (en) * | 1989-01-13 | 1992-09-22 | Lanxide Technology Company, Lp | Method of modifying ceramic composite bodies by a post-treatment process and articles produced thereby |
| US4904446A (en) * | 1989-01-13 | 1990-02-27 | Lanxide Technology Company, Lp | Process for preparing self-supporting bodies and products made thereby |
| US4885131A (en) * | 1989-01-13 | 1989-12-05 | Lanxide Technology Company, Lp | Process for preparing self-supporting bodies and products produced thereby |
| US5372178A (en) * | 1989-01-13 | 1994-12-13 | Lanxide Technology Company, Lp | Method of producing ceramic composite bodies |
| US5238883A (en) * | 1989-01-13 | 1993-08-24 | Lanxide Technology Company, Lp | Process for preparing self-supporting bodies and products produced thereby |
| US5187128A (en) * | 1989-01-13 | 1993-02-16 | Lanxide Technology Company, Lp | Process for preparing self-supporting bodies |
| IL92396A0 (en) * | 1989-01-13 | 1990-07-26 | Lanxide Technology Co Ltd | Method of producing ceramic composite bodies |
| AT392929B (de) * | 1989-03-06 | 1991-07-10 | Boehler Gmbh | Verfahren zur pulvermetallurgischen herstellung von werkstuecken oder werkzeugen |
| US5112654A (en) * | 1990-06-25 | 1992-05-12 | Lanxide Technology Company, Lp | Method for forming a surface coating |
| US5250324A (en) * | 1990-06-25 | 1993-10-05 | Lanxide Technology Company, L.P. | Method for forming a surface coating using powdered solid oxidants and parent metals |
| JPH06502379A (ja) * | 1990-07-12 | 1994-03-17 | ランキサイド テクノロジー カンパニー，リミティド パートナーシップ | セラミックス複合体の接合方法 |
| US5098870A (en) * | 1990-07-12 | 1992-03-24 | Lanxide Technology Company, Lp | Process for preparing self-supporting bodies having controlled porosity and graded properties and products produced thereby |
| US5232040A (en) * | 1990-07-12 | 1993-08-03 | Lanxide Technology Company, Lp | Method for reducing metal content of self-supporting composite bodies and articles formed thereby |
| EP0538417B1 (en) * | 1990-07-12 | 1995-01-25 | Lanxide Technology Company, Lp | Joining methods for ceramic composite bodies |
| US5203488A (en) * | 1990-07-12 | 1993-04-20 | Lanxide Technology Company, Lp | Method for joining ceramic composite bodies and articles formed thereby |
| US5089447A (en) * | 1990-10-09 | 1992-02-18 | The Dow Chemical Company | High hardness, wear resistant materials |
| US5166105A (en) * | 1990-12-10 | 1992-11-24 | Lanxide Technology Company, Lp | Process for preparing self-supporting ceramic composite bodies and bodies produced thereby |
| US5500182A (en) * | 1991-07-12 | 1996-03-19 | Lanxide Technology Company, Lp | Ceramic composite bodies with increased metal content |
| US5435966A (en) * | 1991-07-12 | 1995-07-25 | Lanxide Technology Company, Lp | Reduced metal content ceramic composite bodies |
| US5567662A (en) * | 1994-02-15 | 1996-10-22 | The Dow Chemical Company | Method of making metallic carbide powders |
| US5509555A (en) * | 1994-06-03 | 1996-04-23 | Massachusetts Institute Of Technology | Method for producing an article by pressureless reactive infiltration |
| US5753574A (en) * | 1996-09-16 | 1998-05-19 | Hiz Corp. | Metal infiltrated ceramic electrical conductor |
| DE19834571C2 (de) | 1998-07-31 | 2001-07-26 | Daimler Chrysler Ag | Verfahren zur Herstellung von Körpern aus faserverstärkten Verbundwerkstoffen und Verwendung des Verfahrens |
| DE102006023561A1 (de) | 2006-05-19 | 2007-11-22 | Audi Ag | Verfahren zur Herstellung von keramischen Werkstoffen auf Basis von Siliciumcarbid |
| RU2484013C2 (ru) * | 2011-02-08 | 2013-06-10 | Бушуев Вячеслав Максимович | Способ изготовления изделий из композиционного материала |
| CN109881210B (zh) * | 2019-03-13 | 2020-09-22 | 东北大学 | 电场和/或超声场强化制备过渡金属碳化物粉体的方法 |
| CN114315358B (zh) * | 2021-12-27 | 2023-01-24 | 海南大学 | 一种全致密无粘结剂碳化钨陶瓷及其制备方法 |
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| US3472709A (en) * | 1966-03-25 | 1969-10-14 | Nasa | Method of producing refractory composites containing tantalum carbide,hafnium carbide,and hafnium boride |
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| US4605440A (en) * | 1985-05-06 | 1986-08-12 | The United States Of America As Represented By The United States Department Of Energy | Boron-carbide-aluminum and boron-carbide-reactive metal cermets |
| CA1256457A (en) * | 1985-05-20 | 1989-06-27 | Michel Chevigne | Production of reaction-sintered articles and reaction- sintered articles |
| US4702770A (en) * | 1985-07-26 | 1987-10-27 | Washington Research Foundation | Multipurpose boron carbide-aluminum composite and its manufacture via the control of the microstructure |
| US4777014A (en) * | 1986-03-07 | 1988-10-11 | Lanxide Technology Company, Lp | Process for preparing self-supporting bodies and products made thereby |
| US4718941A (en) * | 1986-06-17 | 1988-01-12 | The Regents Of The University Of California | Infiltration processing of boron carbide-, boron-, and boride-reactive metal cermets |
-
1987
- 1987-01-13 US US07/002,823 patent/US4891338A/en not_active Expired - Fee Related
- 1987-12-23 RO RO13123487A patent/RO100373B1/ro unknown
-
1988
- 1988-01-04 IN IN09/CAL/88A patent/IN169041B/en unknown
- 1988-01-04 AU AU10018/88A patent/AU601539B2/en not_active Ceased
- 1988-01-05 CS CS88117A patent/CS276459B6/cs unknown
- 1988-01-06 NZ NZ223094A patent/NZ223094A/xx unknown
- 1988-01-08 YU YU3588A patent/YU46856B/sh unknown
- 1988-01-08 TR TR88/0024A patent/TR24678A/xx unknown
- 1988-01-08 IE IE4288A patent/IE61458B1/en unknown
- 1988-01-09 CN CN88100073A patent/CN88100073A/zh active Pending
- 1988-01-11 HU HU8885A patent/HU205335B/hu not_active IP Right Cessation
- 1988-01-11 CA CA000556691A patent/CA1327492C/en not_active Expired - Fee Related
- 1988-01-11 IL IL85071A patent/IL85071A/xx not_active IP Right Cessation
- 1988-01-11 DD DD88312166A patent/DD284699A5/de not_active IP Right Cessation
- 1988-01-11 BG BG082584A patent/BG60293B2/xx unknown
- 1988-01-11 PH PH36340A patent/PH26252A/en unknown
- 1988-01-12 PL PL1988270099A patent/PL157986B1/pl unknown
- 1988-01-12 ZA ZA880177A patent/ZA88177B/xx unknown
- 1988-01-12 NO NO880096A patent/NO880096L/no unknown
- 1988-01-12 AT AT88630008T patent/ATE70038T1/de not_active IP Right Cessation
- 1988-01-12 FI FI880121A patent/FI93540C/sv not_active IP Right Cessation
- 1988-01-12 RU SU884203985A patent/RU1838279C/ru active
- 1988-01-12 DE DE8888630008T patent/DE3866550D1/de not_active Expired - Fee Related
- 1988-01-12 BR BR8800082A patent/BR8800082A/pt active Search and Examination
- 1988-01-12 ES ES198888630008T patent/ES2038782T3/es not_active Expired - Lifetime
- 1988-01-12 EP EP88630008A patent/EP0277085B1/en not_active Expired - Lifetime
- 1988-01-12 DK DK011188A patent/DK11188A/da not_active Application Discontinuation
- 1988-01-12 PT PT86537A patent/PT86537B/pt not_active IP Right Cessation
- 1988-01-13 KR KR1019880000198A patent/KR950014719B1/ko active IP Right Grant
- 1988-01-13 MX MX010077A patent/MX166268B/es unknown
- 1988-01-13 JP JP63005687A patent/JPH06665B2/ja not_active Expired - Fee Related
-
1990
- 1990-12-26 JP JP2406646A patent/JP2645180B2/ja not_active Expired - Fee Related
-
1992
- 1992-02-18 GR GR920400243T patent/GR3003821T3/el unknown
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Legal Events
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| MM | Patent lapsed | ||
| MM | Patent lapsed |
Owner name: LANXIDE TECHNOLOGY COMPANY, LP |