ATE131143T1 - Impfen von übergangsaluminiumoxid mit keimen aus chromoxid zur gewinnung von alpha-aluminiumoxid. - Google Patents

Impfen von übergangsaluminiumoxid mit keimen aus chromoxid zur gewinnung von alpha-aluminiumoxid.

Info

Publication number: ATE131143T1
Authority: AT; Austria
Prior art keywords: aluminum oxide; oxide; germs; inoculation; transitional
Prior art date: 1990-07-16

Application number

AT91915342T

Other languages

English (en)

Inventor

Thomas E Wood

Original Assignee

Minnesota Mining & Mfg

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.)

1990-07-16

Filing date

1991-06-03

Publication date

1995-12-15

1990-07-16 Priority claimed from US07/552,489 external-priority patent/US5219806A/en

1990-07-16 Priority claimed from US07/552,891 external-priority patent/US5139978A/en

1991-06-03 Application filed by Minnesota Mining & Mfg filed Critical Minnesota Mining & Mfg

1995-12-15 Application granted granted Critical

1995-12-15 Publication of ATE131143T1 publication Critical patent/ATE131143T1/de

Links

TWNQGVIAIRXVLR-UHFFFAOYSA-N oxo(oxoalumanyloxy)alumane Chemical compound O=[Al]O[Al]=O TWNQGVIAIRXVLR-UHFFFAOYSA-N 0.000 title 2
QDOXWKRWXJOMAK-UHFFFAOYSA-N dichromium trioxide Chemical compound O=[Cr]O[Cr]=O QDOXWKRWXJOMAK-UHFFFAOYSA-N 0.000 title 1
238000011081 inoculation Methods 0.000 title 1
PNEYBMLMFCGWSK-UHFFFAOYSA-N Alumina Chemical compound [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 abstract 2
239000000919 ceramic Substances 0.000 abstract 2
VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 abstract 1
229910052804 chromium Inorganic materials 0.000 abstract 1
239000011651 chromium Substances 0.000 abstract 1
239000000835 fiber Substances 0.000 abstract 1
239000002667 nucleating agent Substances 0.000 abstract 1
239000002245 particle Substances 0.000 abstract 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
- 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
- C04B35/62227—Forming processes; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products obtaining fibres
- C04B35/62231—Forming processes; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products obtaining fibres based on oxide ceramics
- 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
- C04B35/10—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 aluminium oxide
- C04B35/111—Fine ceramics
- C04B35/1115—Minute sintered entities, e.g. sintered abrasive grains or shaped particles such as platelets
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
- C09K3/00—Materials not provided for elsewhere
- C09K3/14—Anti-slip materials; Abrasives
- C09K3/1409—Abrasive particles per se
- C09K3/1418—Abrasive particles per se obtained by division of a mass agglomerated by sintering

Landscapes

Chemical & Material Sciences (AREA)
Engineering & Computer Science (AREA)
Ceramic Engineering (AREA)
Organic Chemistry (AREA)
Manufacturing & Machinery (AREA)
Materials Engineering (AREA)
Structural Engineering (AREA)
Inorganic Chemistry (AREA)
Compositions Of Oxide Ceramics (AREA)
Compounds Of Alkaline-Earth Elements, Aluminum Or Rare-Earth Metals (AREA)
Catalysts (AREA)
Polishing Bodies And Polishing Tools (AREA)
Medicines Containing Antibodies Or Antigens For Use As Internal Diagnostic Agents (AREA)
Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)

AT91915342T 1990-07-16 1991-06-03 Impfen von übergangsaluminiumoxid mit keimen aus chromoxid zur gewinnung von alpha-aluminiumoxid. ATE131143T1 (de)

Applications Claiming Priority (2)

Application Number	Priority Date	Filing Date	Title
US07/552,489 US5219806A (en)	1990-07-16	1990-07-16	Alpha phase seeding of transition alumina using chromium oxide-based nucleating agents
US07/552,891 US5139978A (en)	1990-07-16	1990-07-16	Impregnation method for transformation of transition alumina to a alpha alumina

Publications (1)

Publication Number	Publication Date
ATE131143T1 true ATE131143T1 (de)	1995-12-15

Family

ID=27070047

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
AT91915342T ATE131143T1 (de)	1990-07-16	1991-06-03	Impfen von übergangsaluminiumoxid mit keimen aus chromoxid zur gewinnung von alpha-aluminiumoxid.

Country Status (8)

Country	Link
EP (1)	EP0539521B1 (de)
JP (1)	JPH05509285A (de)
AT (1)	ATE131143T1 (de)
AU (1)	AU8443091A (de)
BR (1)	BR9106645A (de)
CA (1)	CA2086552A1 (de)
DE (1)	DE69115277T2 (de)
WO (1)	WO1992001646A2 (de)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US5215552A (en) *	1992-02-26	1993-06-01	Norton Company	Sol-gel alumina abrasive grain
CA2142466A1 (en) *	1992-09-25	1994-04-14	Henry A. Larmie	Abrasive grain including rare earth oxide therin
KR960702420A (ko) *	1992-09-25	1996-04-27	워렌 리처드 보비	알루미나 및 지르코니아를 함유하는 연마 입자(abrasive grain containing alumina and zirconia)
CA2142465A1 (en) *	1992-09-25	1994-04-14	Henry A. Larmie	Method for making abrasive grain containing alumina and ceria
CA2102656A1 (en) *	1992-12-14	1994-06-15	Dwight D. Erickson	Abrasive grain comprising calcium oxide and/or strontium oxide
US5690707A (en) *	1992-12-23	1997-11-25	Minnesota Mining & Manufacturing Company	Abrasive grain comprising manganese oxide
US5443418A (en) *	1993-03-29	1995-08-22	Norton Company	Superabrasive tool
AU689827B2 (en) *	1993-11-12	1998-04-09	Minnesota Mining And Manufacturing Company	Abrasive grain and method for making the same
US5593467A (en) *	1993-11-12	1997-01-14	Minnesota Mining And Manufacturing Company	Abrasive grain

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
CH601109A5 (de) *	1976-11-09	1978-06-30	Alusuisse
EP0324513B1 (de) *	1984-01-19	1994-05-11	Norton Company	Geformter keramischer Gegenstand und Verfahren zu seiner Herstellung
CA1254238A (en) *	1985-04-30	1989-05-16	Alvin P. Gerk	Process for durable sol-gel produced alumina-based ceramics, abrasive grain and abrasive products
US4829031A (en) *	1986-08-01	1989-05-09	Research Corporation	Method of preparing ceramic compositions at lower sintering temperatures
AU604899B2 (en) *	1987-05-27	1991-01-03	Minnesota Mining And Manufacturing Company	Abrasive grits formed of ceramic, impregnation method of making the same and products made therewith
CA1317978C (en) *	1987-06-05	1993-05-18	Thomas E. Wood	Microcrystalline alumina-based ceramic articles
US4964883A (en) *	1988-12-12	1990-10-23	Minnesota Mining And Manufacturing Company	Ceramic alumina abrasive grains seeded with iron oxide
US5009676A (en) *	1989-04-28	1991-04-23	Norton Company	Sintered sol gel alumina abrasive filaments

1991
- 1991-06-03 AT AT91915342T patent/ATE131143T1/de not_active IP Right Cessation
- 1991-06-03 EP EP91915342A patent/EP0539521B1/de not_active Expired - Lifetime
- 1991-06-03 WO PCT/US1991/003878 patent/WO1992001646A2/en not_active Ceased
- 1991-06-03 DE DE69115277T patent/DE69115277T2/de not_active Expired - Fee Related
- 1991-06-03 CA CA002086552A patent/CA2086552A1/en not_active Abandoned
- 1991-06-03 BR BR919106645A patent/BR9106645A/pt not_active Application Discontinuation
- 1991-06-03 JP JP3514417A patent/JPH05509285A/ja active Pending
- 1991-06-03 AU AU84430/91A patent/AU8443091A/en not_active Abandoned

Also Published As

Publication number	Publication date
CA2086552A1 (en)	1992-01-17
BR9106645A (pt)	1993-04-20
AU8443091A (en)	1992-02-18
EP0539521A1 (de)	1993-05-05
DE69115277T2 (de)	1996-08-08
WO1992001646A2 (en)	1992-02-06
EP0539521B1 (de)	1995-12-06
JPH05509285A (ja)	1993-12-22
DE69115277D1 (de)	1996-01-18
WO1992001646A3 (en)	1992-03-05

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Legal Events

Date	Code	Title	Description
1996-05-15	UEP	Publication of translation of european patent specification
2000-03-15	REN	Ceased due to non-payment of the annual fee