ES2131852T3 - Alumina sol-gel modificada. - Google Patents

Alumina sol-gel modificada.

Info

Publication number
ES2131852T3
ES2131852T3 ES95930303T ES95930303T ES2131852T3 ES 2131852 T3 ES2131852 T3 ES 2131852T3 ES 95930303 T ES95930303 T ES 95930303T ES 95930303 T ES95930303 T ES 95930303T ES 2131852 T3 ES2131852 T3 ES 2131852T3
Authority
ES
Spain
Prior art keywords
gel alumina
modified sol
yttria
grit
concentrations
Prior art date
Legal status (The legal status 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 status listed.)
Expired - Lifetime
Application number
ES95930303T
Other languages
English (en)
Inventor
A K Garg
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Saint Gobain Ceramics and Plastics Inc
Original Assignee
Saint Gobain Norton Industrial Ceramics Corp
Saint Gobain Industrial Ceramics Inc
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.)
Filing date
Publication date
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=23336825&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=ES2131852(T3) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Saint Gobain Norton Industrial Ceramics Corp, Saint Gobain Industrial Ceramics Inc filed Critical Saint Gobain Norton Industrial Ceramics Corp
Application granted granted Critical
Publication of ES2131852T3 publication Critical patent/ES2131852T3/es
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • CCHEMISTRY; METALLURGY
    • C09DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09KMATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
    • C09K3/00Materials not provided for elsewhere
    • C09K3/14Anti-slip materials; Abrasives
    • CCHEMISTRY; METALLURGY
    • C04CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04BLIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B35/00Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
    • C04B35/622Forming processes; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
    • C04B35/624Sol-gel processing
    • CCHEMISTRY; METALLURGY
    • C04CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04BLIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B35/00Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
    • C04B35/01Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics
    • C04B35/10Shaped 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
    • C04B35/111Fine ceramics
    • C04B35/1115Minute sintered entities, e.g. sintered abrasive grains or shaped particles such as platelets
    • CCHEMISTRY; METALLURGY
    • C09DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09KMATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
    • C09K3/00Materials not provided for elsewhere
    • C09K3/14Anti-slip materials; Abrasives
    • C09K3/1409Abrasive particles per se
    • C09K3/1418Abrasive 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)
  • Materials Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Structural Engineering (AREA)
  • Dispersion Chemistry (AREA)
  • Inorganic Chemistry (AREA)
  • Compounds Of Alkaline-Earth Elements, Aluminum Or Rare-Earth Metals (AREA)
  • Compositions Of Oxide Ceramics (AREA)
  • Colloid Chemistry (AREA)
  • Polishing Bodies And Polishing Tools (AREA)

Abstract

GRANOS ABRASIVOS DE ALUMINA ALFA CON LIMITES DE GRANO MODIFICADOS CON AL MENOS UNO DE ITRIA Y UN OXIDO DE METAL DE TIERRA RARA, Y UNO O MAS OXIDOS SELECCIONADOS DE LOS OXIDOS DE MAGNESIO Y/O ELEMENTOS DE TRANSICION, SE EJECUTAN A NIVELES MEJORADOS SI AL MENOS LOS MODIFICADORES DE ITRIA Y/U OXIDO DE METAL DE TIERRA RARA ESTAN PRESENTES EN LA ESTRUCTURA DEL GRANO EN CONCENTRACIONES TAN ELEVADAS COMO SUS CONCENTRACIONES EN LA SUPERFICIE DEL GRANO.
ES95930303T 1994-11-17 1995-08-30 Alumina sol-gel modificada. Expired - Lifetime ES2131852T3 (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US08/341,249 US5527369A (en) 1994-11-17 1994-11-17 Modified sol-gel alumina

Publications (1)

Publication Number Publication Date
ES2131852T3 true ES2131852T3 (es) 1999-08-01

Family

ID=23336825

Family Applications (1)

Application Number Title Priority Date Filing Date
ES95930303T Expired - Lifetime ES2131852T3 (es) 1994-11-17 1995-08-30 Alumina sol-gel modificada.

Country Status (14)

Country Link
US (1) US5527369A (es)
EP (1) EP0792331B1 (es)
JP (1) JP2931105B2 (es)
KR (1) KR100201521B1 (es)
AT (1) ATE178642T1 (es)
AU (1) AU684387B2 (es)
BR (1) BR9510355A (es)
CA (1) CA2203552A1 (es)
DE (1) DE69508956T2 (es)
ES (1) ES2131852T3 (es)
MX (1) MX9703682A (es)
TW (1) TW418244B (es)
WO (1) WO1996016138A1 (es)
ZA (1) ZA953927B (es)

Families Citing this family (69)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6240451B1 (en) * 1995-05-25 2001-05-29 Punch Networks Corporation Method and apparatus for automatically disseminating information over a network
US5694596A (en) * 1995-05-25 1997-12-02 Kangaroo, Inc. On-line database updating network system and method
US5611829A (en) * 1995-06-20 1997-03-18 Minnesota Mining And Manufacturing Company Alpha alumina-based abrasive grain containing silica and iron oxide
US5645619A (en) * 1995-06-20 1997-07-08 Minnesota Mining And Manufacturing Company Method of making alpha alumina-based abrasive grain containing silica and iron oxide
JPH09190626A (ja) * 1995-11-10 1997-07-22 Kao Corp 研磨材組成物、磁気記録媒体用基板及びその製造方法並びに磁気記録媒体
EP0931032B1 (en) * 1996-09-18 2001-07-18 Minnesota Mining And Manufacturing Company Method for making abrasive grain using impregnation, and abrasive articles
US5893935A (en) * 1997-01-09 1999-04-13 Minnesota Mining And Manufacturing Company Method for making abrasive grain using impregnation, and abrasive articles
US5776214A (en) * 1996-09-18 1998-07-07 Minnesota Mining And Manufacturing Company Method for making abrasive grain and abrasive articles
US5779743A (en) * 1996-09-18 1998-07-14 Minnesota Mining And Manufacturing Company Method for making abrasive grain and abrasive articles
US6206942B1 (en) 1997-01-09 2001-03-27 Minnesota Mining & Manufacturing Company Method for making abrasive grain using impregnation, and abrasive articles
US6074278A (en) * 1998-01-30 2000-06-13 Norton Company High speed grinding wheel
US6053956A (en) * 1998-05-19 2000-04-25 3M Innovative Properties Company Method for making abrasive grain using impregnation and abrasive articles
US6287353B1 (en) 1999-09-28 2001-09-11 3M Innovative Properties Company Abrasive grain, abrasive articles, and methods of making and using the same
US6277161B1 (en) 1999-09-28 2001-08-21 3M Innovative Properties Company Abrasive grain, abrasive articles, and methods of making and using the same
US6391072B1 (en) * 2000-05-04 2002-05-21 Saint-Gobain Industrial Ceramics, Inc. Abrasive grain
US6802878B1 (en) 2003-04-17 2004-10-12 3M Innovative Properties Company Abrasive particles, abrasive articles, and methods of making and using the same
KR101134592B1 (ko) 2006-01-02 2012-04-09 삼성코닝정밀소재 주식회사 슬러리용 금속 산화물 분말의 제조 방법 및 그에 의해 제조된 슬러리용 금속 산화물 분말
CN100484621C (zh) * 2006-10-25 2009-05-06 中国科学院大连化学物理研究所 一种具有耐高温性能的大比表面改性氧化铝的制备方法
TWI461216B (zh) * 2010-12-09 2014-11-21 Univ Nat Taiwan 牙齒漂白催化劑及其應用
WO2012092590A2 (en) 2010-12-31 2012-07-05 Saint-Gobain Ceramics & Plastics, Inc. Abrasive particles having particular shapes and methods of forming such particles
CN108262695A (zh) 2011-06-30 2018-07-10 圣戈本陶瓷及塑料股份有限公司 包括氮化硅磨粒的磨料制品
CN103764349B (zh) 2011-06-30 2017-06-09 圣戈本陶瓷及塑料股份有限公司 液相烧结碳化硅研磨颗粒
CN103013442B (zh) * 2011-09-22 2014-05-14 鲁信创业投资集团股份有限公司 一种α-氧化铝基磨料及其制备方法
EP2760639B1 (en) 2011-09-26 2021-01-13 Saint-Gobain Ceramics & Plastics, Inc. Abrasive articles including abrasive particulate materials, coated abrasives using the abrasive particulate materials and methods of forming
BR112014016159A8 (pt) 2011-12-30 2017-07-04 Saint Gobain Ceramics formação de partículas abrasivas moldadas
EP2797716B1 (en) 2011-12-30 2021-02-17 Saint-Gobain Ceramics & Plastics, Inc. Composite shaped abrasive particles and method of forming same
KR102074138B1 (ko) 2011-12-30 2020-02-07 생-고뱅 세라믹스 앤드 플라스틱스, 인코포레이티드 형상화 연마입자 및 이의 형성방법
EP3705177A1 (en) 2012-01-10 2020-09-09 Saint-Gobain Ceramics & Plastics Inc. Abrasive particles having complex shapes and methods of forming same
WO2013106602A1 (en) 2012-01-10 2013-07-18 Saint-Gobain Ceramics & Plastics, Inc. Abrasive particles having particular shapes and methods of forming such particles
WO2013149209A1 (en) 2012-03-30 2013-10-03 Saint-Gobain Abrasives, Inc. Abrasive products having fibrillated fibers
KR102534897B1 (ko) 2012-05-23 2023-05-30 생-고뱅 세라믹스 앤드 플라스틱스, 인코포레이티드 형상화 연마입자들 및 이의 형성방법
US10106714B2 (en) 2012-06-29 2018-10-23 Saint-Gobain Ceramics & Plastics, Inc. Abrasive particles having particular shapes and methods of forming such particles
KR101736085B1 (ko) 2012-10-15 2017-05-16 생-고뱅 어브레이시브즈, 인코포레이티드 특정한 형태들을 가진 연마 입자들 및 이러한 입자들을 형성하는 방법들
US9074119B2 (en) 2012-12-31 2015-07-07 Saint-Gobain Ceramics & Plastics, Inc. Particulate materials and methods of forming same
CN105073343B (zh) 2013-03-29 2017-11-03 圣戈班磨料磨具有限公司 具有特定形状的磨粒、形成这种粒子的方法及其用途
TW201502263A (zh) 2013-06-28 2015-01-16 Saint Gobain Ceramics 包含成形研磨粒子之研磨物品
CN105764653B (zh) 2013-09-30 2020-09-11 圣戈本陶瓷及塑料股份有限公司 成形磨粒及其形成方法
EP3089851B1 (en) 2013-12-31 2019-02-06 Saint-Gobain Abrasives, Inc. Abrasive article including shaped abrasive particles
US9771507B2 (en) 2014-01-31 2017-09-26 Saint-Gobain Ceramics & Plastics, Inc. Shaped abrasive particle including dopant material and method of forming same
MX394114B (es) 2014-04-14 2025-03-24 Saint Gobain Ceramics Articulo abrasivo que incluye particulas abrasivas conformadas.
WO2015160855A1 (en) 2014-04-14 2015-10-22 Saint-Gobain Ceramics & Plastics, Inc. Abrasive article including shaped abrasive particles
US9902045B2 (en) 2014-05-30 2018-02-27 Saint-Gobain Abrasives, Inc. Method of using an abrasive article including shaped abrasive particles
US9707529B2 (en) 2014-12-23 2017-07-18 Saint-Gobain Ceramics & Plastics, Inc. Composite shaped abrasive particles and method of forming same
US9914864B2 (en) 2014-12-23 2018-03-13 Saint-Gobain Ceramics & Plastics, Inc. Shaped abrasive particles and method of forming same
US9676981B2 (en) 2014-12-24 2017-06-13 Saint-Gobain Ceramics & Plastics, Inc. Shaped abrasive particle fractions and method of forming same
US9790411B2 (en) 2014-12-30 2017-10-17 Saint-Gobain Abrasives, Inc. Abrasive articles and methods for forming same
EP3683016A1 (en) 2014-12-30 2020-07-22 Saint-Gobain Abrasives, Inc. Abrasive articles and methods for forming the same
TWI634200B (zh) 2015-03-31 2018-09-01 聖高拜磨料有限公司 固定磨料物品及其形成方法
CN116967949A (zh) 2015-03-31 2023-10-31 圣戈班磨料磨具有限公司 固定磨料制品和其形成方法
TWI621590B (zh) * 2015-05-21 2018-04-21 聖高拜陶器塑膠公司 研磨顆粒及形成研磨顆粒之方法
US10711171B2 (en) 2015-06-11 2020-07-14 Saint-Gobain Ceramics & Plastics, Inc. Abrasive article including shaped abrasive particles
CN121249321A (zh) 2016-05-10 2026-01-02 圣戈本陶瓷及塑料股份有限公司 磨料颗粒及其形成方法
US11718774B2 (en) 2016-05-10 2023-08-08 Saint-Gobain Ceramics & Plastics, Inc. Abrasive particles and methods of forming same
US11230653B2 (en) 2016-09-29 2022-01-25 Saint-Gobain Abrasives, Inc. Fixed abrasive articles and methods of forming same
US10759024B2 (en) 2017-01-31 2020-09-01 Saint-Gobain Ceramics & Plastics, Inc. Abrasive article including shaped abrasive particles
US10563105B2 (en) 2017-01-31 2020-02-18 Saint-Gobain Ceramics & Plastics, Inc. Abrasive article including shaped abrasive particles
WO2018236989A1 (en) 2017-06-21 2018-12-27 Saint-Gobain Ceramics & Plastics, Inc. Particulate materials and methods of forming same
JP7020013B2 (ja) * 2017-09-14 2022-02-16 昭和電工株式会社 複合焼結体、砥粒、砥石、複合焼結体の製造方法
KR102363114B1 (ko) * 2017-12-27 2022-02-15 쇼와 덴코 가부시키가이샤 알루미나 소결체의 전구체, 알루미나 소결체의 제조 방법, 숫돌 입자의 제조 방법 및 알루미나 소결체
US11926019B2 (en) 2019-12-27 2024-03-12 Saint-Gobain Ceramics & Plastics, Inc. Abrasive articles and methods of forming same
WO2021133888A1 (en) 2019-12-27 2021-07-01 Saint-Gobain Ceramics & Plastics, Inc. Abrasive articles and methods of forming same
WO2021133876A1 (en) 2019-12-27 2021-07-01 Saint-Gobain Ceramics & Plastics, Inc. Abrasive articles and methods of forming same
CN113881348A (zh) * 2021-11-04 2022-01-04 青岛福禄泰科表面材料科技有限公司 一种复合氧化铝抛光液及其制备方法和应用
KR20240148817A (ko) 2021-12-30 2024-10-11 세인트-고바인 아브라시브즈 인크. 연마 물품 및 이의 형성 방법
US12508688B2 (en) 2021-12-30 2025-12-30 Saint-Gobain Abrasives, Inc. Abrasive articles and methods of forming same
CN118541241A (zh) 2021-12-30 2024-08-23 圣戈班磨料磨具有限公司 磨料制品及其形成方法
CN116440887B (zh) * 2022-01-06 2024-08-06 中国石油化工股份有限公司 一种改性氧化铝及其生产方法
CN116440886B (zh) * 2022-01-06 2024-10-15 中国石油化工股份有限公司 大孔改性氧化铝及其生产方法
CN121263393A (zh) 2023-06-08 2026-01-02 3M创新有限公司 α氧化铝基陶瓷材料及其制造方法

Family Cites Families (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4314827A (en) * 1979-06-29 1982-02-09 Minnesota Mining And Manufacturing Company Non-fused aluminum oxide-based abrasive mineral
US4518397A (en) * 1979-06-29 1985-05-21 Minnesota Mining And Manufacturing Company Articles containing non-fused aluminum oxide-based abrasive mineral
US4543107A (en) * 1984-08-08 1985-09-24 Norton Company Vitrified bonded grinding wheels containing sintered gel aluminous abrasive grits
US4770671A (en) * 1985-12-30 1988-09-13 Minnesota Mining And Manufacturing Company Abrasive grits formed of ceramic containing oxides of aluminum and yttrium, method of making and using the same and products made therewith
IN170784B (es) * 1987-05-27 1992-05-23 Minnesota Mining & Mfg
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
US4881951A (en) * 1987-05-27 1989-11-21 Minnesota Mining And Manufacturing Co. Abrasive grits formed of ceramic containing oxides of aluminum and rare earth metal, method of making and products made therewith
US5132789A (en) * 1988-01-15 1992-07-21 Tiltrac Corporation Tilt rack video tape library and VCP to multiple subscriber system
US5011508A (en) * 1988-10-14 1991-04-30 Minnesota Mining And Manufacturing Company Shelling-resistant abrasive grain, a method of making the same, and abrasive products
US5009676A (en) * 1989-04-28 1991-04-23 Norton Company Sintered sol gel alumina abrasive filaments
US5035724A (en) * 1990-05-09 1991-07-30 Norton Company Sol-gel alumina shaped bodies
US5139978A (en) * 1990-07-16 1992-08-18 Minnesota Mining And Manufacturing Company Impregnation method for transformation of transition alumina to a alpha alumina
US5282875A (en) * 1992-03-18 1994-02-01 Cincinnati Milacron Inc. High density sol-gel alumina-based abrasive vitreous bonded grinding wheel
JPH08502304A (ja) * 1992-09-25 1996-03-12 ミネソタ・マイニング・アンド・マニュファクチュアリング・カンパニー 稀土類酸化物含有砥粒
CA2102656A1 (en) * 1992-12-14 1994-06-15 Dwight D. Erickson Abrasive grain comprising calcium oxide and/or strontium oxide
CA2150245A1 (en) 1992-12-23 1994-07-07 William P. Wood Abrasive grain comprising manganese oxide
US5372620A (en) * 1993-12-13 1994-12-13 Saint Gobain/Norton Industrial Ceramics Corporation Modified sol-gel alumina abrasive filaments
GB9518171D0 (en) * 1995-08-24 1995-11-08 Bundy Int Ltd Tube bending

Also Published As

Publication number Publication date
EP0792331A1 (en) 1997-09-03
DE69508956D1 (de) 1999-05-12
US5527369A (en) 1996-06-18
TW418244B (en) 2001-01-11
JP2931105B2 (ja) 1999-08-09
ZA953927B (en) 1996-04-09
ATE178642T1 (de) 1999-04-15
JPH10504348A (ja) 1998-04-28
KR100201521B1 (ko) 1999-06-15
DE69508956T2 (de) 1999-10-07
MX9703682A (es) 1997-08-30
KR970707253A (ko) 1997-12-01
EP0792331B1 (en) 1999-04-07
WO1996016138A1 (en) 1996-05-30
BR9510355A (pt) 1997-12-23
AU684387B2 (en) 1997-12-11
CA2203552A1 (en) 1996-05-30
AU3374495A (en) 1996-06-17

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