NO850237L - Slipemiddelkorn eller keramiske legemer og fremstilling derav - Google Patents

Slipemiddelkorn eller keramiske legemer og fremstilling derav

Info

Publication number: NO850237L
Authority: NO; Norway
Prior art keywords: preparation; abrasive grains; ceramic bodies; alumina; microstructure
Prior art date: 1984-01-19

Application number

NO850237A

Other languages

English (en)

Other versions

NO166783B (no

NO166783C (no

Inventor

Thomas E Cottringer

Ronald H Van De Merwe

Ralph Bauer

Original Assignee

Norton Co

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.)

1984-01-19

Filing date

1985-01-18

Publication date

1985-07-22

Family has litigation

First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=27416130&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=NO850237(L) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.

1984-10-19 Priority claimed from US06/662,869 external-priority patent/US4623364A/en

1985-01-18 Application filed by Norton Co filed Critical Norton Co

1985-07-22 Publication of NO850237L publication Critical patent/NO850237L/no

1991-05-27 Publication of NO166783B publication Critical patent/NO166783B/no

1991-09-04 Publication of NO166783C publication Critical patent/NO166783C/no

Classifications

- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01F—COMPOUNDS OF THE METALS BERYLLIUM, MAGNESIUM, ALUMINIUM, CALCIUM, STRONTIUM, BARIUM, RADIUM, THORIUM, OR OF THE RARE-EARTH METALS
- C01F7/00—Compounds of aluminium
- C01F7/02—Aluminium oxide; Aluminium hydroxide; Aluminates
- C01F7/44—Dehydration of aluminium oxide or hydroxide, i.e. all conversions of one form into another involving a loss of water
- C01F7/441—Dehydration of aluminium oxide or hydroxide, i.e. all conversions of one form into another involving a loss of water by calcination
- C01F7/442—Dehydration of aluminium oxide or hydroxide, i.e. all conversions of one form into another involving a loss of water by calcination in presence of a calcination additive
- 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
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
- C01P2004/00—Particle morphology
- C01P2004/60—Particles characterised by their size
- C01P2004/62—Submicrometer sized, i.e. from 0.1-1 micrometer

Landscapes

Chemical & Material Sciences (AREA)
Engineering & Computer Science (AREA)
Organic Chemistry (AREA)
Ceramic Engineering (AREA)
Materials Engineering (AREA)
Geology (AREA)
Structural Engineering (AREA)
Life Sciences & Earth Sciences (AREA)
Manufacturing & Machinery (AREA)
Inorganic Chemistry (AREA)
Compositions Of Oxide Ceramics (AREA)
Polishing Bodies And Polishing Tools (AREA)
Compounds Of Alkaline-Earth Elements, Aluminum Or Rare-Earth Metals (AREA)
Preparation Of Clay, And Manufacture Of Mixtures Containing Clay Or Cement (AREA)
Grinding And Polishing Of Tertiary Curved Surfaces And Surfaces With Complex Shapes (AREA)
Catalysts (AREA)

NO850237A 1984-01-19 1985-01-18 Keramisk legeme, dets fremstilling samt gjenstander inneholdende legemet. NO166783C (no)

Applications Claiming Priority (3)

Application Number	Priority Date	Filing Date	Title
US57210684A	1984-01-19	1984-01-19
US59268984A	1984-03-23	1984-03-23
US06/662,869 US4623364A (en)	1984-03-23	1984-10-19	Abrasive material and method for preparing the same

Publications (3)

Publication Number	Publication Date
NO850237L true NO850237L (no)	1985-07-22
NO166783B NO166783B (no)	1991-05-27
NO166783C NO166783C (no)	1991-09-04

Family

ID=27416130

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
NO850237A NO166783C (no)	1984-01-19	1985-01-18	Keramisk legeme, dets fremstilling samt gjenstander inneholdende legemet.

Country Status (10)

Country	Link
EP (1)	EP0152768B1 (no)
JP (2)	JPH0686326B2 (no)
AT (2)	ATE90320T1 (no)
AU (1)	AU584873B2 (no)
BR (1)	BR8500231A (no)
DE (2)	DE3587386T2 (no)
DK (1)	DK165551C (no)
ES (1)	ES8607888A1 (no)
NO (1)	NO166783C (no)
NZ (1)	NZ210805A (no)

Families Citing this family (76)

* Cited by examiner, † Cited by third party
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US4543107A (en) *	1984-08-08	1985-09-24	Norton Company	Vitrified bonded grinding wheels containing sintered gel aluminous abrasive grits
US4678762A (en) *	1985-02-04	1987-07-07	Norton Company	Very smooth and flat polycrystalline alumina substrates from direct firing
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
FI79830C (fi) *	1985-07-15	1990-03-12	Norddeutsche Schleifmittel Ind	Foerfarande foer framstaellning av keramiskt polykristallint slipmaterial.
US4657754A (en) *	1985-11-21	1987-04-14	Norton Company	Aluminum oxide powders and process
US5259147A (en) *	1986-02-15	1993-11-09	Vereinigte Schmirgel-Und Maschinenfabriken Aktiengesellschaft	Granular abrasive material
DE3604848A1 (de) *	1986-02-15	1987-08-20	Ver Schmirgel & Maschf	Schleifkorn und verfahren zu seiner herstellung
AT389882B (de) *	1986-06-03	1990-02-12	Treibacher Chemische Werke Ag	Verfahren zur herstellung eines mikrokristallinen schleifmaterials
AT389884B (de) *	1986-10-03	1990-02-12	Treibacher Chemische Werke Ag	Verfahren zur herstellung eines gesinterten schleifmaterials auf der basis von alpha-al2o3
KR910009894B1 (ko) *	1987-03-26	1991-12-03	도도 기끼 가부시끼가이샤	세라믹스 제품 및 그 제조방법
US4960441A (en) *	1987-05-11	1990-10-02	Norton Company	Sintered alumina-zirconia ceramic bodies
AR245484A1 (es) *	1987-05-11	1994-01-31	Norton Co	Cuerpo ceramico que comprende microcristales bien intermezclados de alfa alumina y zirconia, y procedimiento para su preparacion.
US5185299A (en) *	1987-06-05	1993-02-09	Minnesota Mining And Manufacturing Company	Microcrystalline alumina-based ceramic articles
US4954462A (en) *	1987-06-05	1990-09-04	Minnesota Mining And Manufacturing Company	Microcrystalline alumina-based ceramic articles
US4797139A (en) *	1987-08-11	1989-01-10	Norton Company	Boehmite produced by a seeded hydyothermal process and ceramic bodies produced therefrom
DE3852819T2 (de) *	1987-09-14	1995-06-01	Norton Co	Gebundenes schleifmittel.
US4898597A (en) *	1988-08-25	1990-02-06	Norton Company	Frit bonded abrasive wheel
US5053369A (en) *	1988-11-02	1991-10-01	Treibacher Chemische Werke Aktiengesellschaft	Sintered microcrystalline ceramic material
US4964883A (en) *	1988-12-12	1990-10-23	Minnesota Mining And Manufacturing Company	Ceramic alumina abrasive grains seeded with iron oxide
US5244477A (en) *	1989-04-28	1993-09-14	Norton Company	Sintered sol gel alumina abrasive filaments
US5009676A (en) *	1989-04-28	1991-04-23	Norton Company	Sintered sol gel alumina abrasive filaments
JP2639121B2 (ja) *	1989-08-25	1997-08-06	三菱マテリアル株式会社	微細α―アルミナ粉末の製造方法
JPH06104816B2 (ja) *	1990-02-09	1994-12-21	日本研磨材工業株式会社	焼結アルミナ砥粒及びその製造方法
CA2043283A1 (en) *	1990-07-06	1992-01-07	William F. Mccutcheon	Coated abrasives
DE4113476A1 (de) *	1991-04-25	1992-10-29	Huels Chemische Werke Ag	Polykristalline, gesinterte schleifkoerner auf basis von alpha-al(pfeil abwaerts)2(pfeil abwaerts)o(pfeil abwaerts)3(pfeil abwaerts), verfahren zu ihrer herstellung und deren verwendung
AU650382B2 (en) *	1992-02-05	1994-06-16	Norton Company	Nano-sized alpha alumina particles
JP3268098B2 (ja) *	1992-12-25	2002-03-25	第一製薬株式会社	二環性環状アミン誘導体
DE19503854C2 (de) *	1995-02-06	1997-02-20	Starck H C Gmbh Co Kg	Verfahren zur Herstellung gesinterter alpha-Al¶2¶O¶3¶-Körper sowie deren Verwendung
US5681658A (en) *	1995-05-30	1997-10-28	Aluminum Company Of America	Gelation-resistant alumina
DE19629690C2 (de) *	1996-07-23	1999-08-05	Korund Laufenburg Gmbh	Verfahren zur Herstellung gesinterter alpha-AL¶2¶0¶3¶-Körper sowie deren Verwendung
DE19945335A1 (de)	1999-09-22	2001-04-05	Treibacher Schleifmittel Gmbh	Al¶2¶O¶3¶/SiC-Nanokomposit-Schleifkörner, Verfahren zu ihrer Herstellung sowie ihre Verwendung
DE10019184A1 (de) *	2000-04-17	2001-10-25	Treibacher Schleifmittel Gmbh	Formkörper
US6499680B2 (en) *	2001-06-01	2002-12-31	Saint-Gobain Ceramics And Plastics, Inc.	Grinding media
AT500550B1 (de) *	2004-01-29	2007-02-15	Rappold Winterthur Technologie	Schleifkörperfertigungsverfahren mit feinstkornbindungssystemen
BR112012008272A2 (pt)	2009-10-08	2016-03-15	Saint Gobain Abrasifs Sa	artigo abrasivo ligado e método de formação
US8721751B2 (en)	2009-12-02	2014-05-13	Saint-Gobain Abrasives, Inc.	Bonded abrasive article and method of forming
JP5581395B2 (ja)	2009-12-02	2014-08-27	サンーゴバンアブレイシブズ，インコーポレイティド	ボンド研磨物品およびその形成方法
PL2658680T3 (pl)	2010-12-31	2021-05-31	Saint-Gobain Ceramics & Plastics, Inc.	Wyroby ścierne zawierające cząstki ścierne o określonych kształtach i sposoby formowania takich wyrobów
EP2726248B1 (en)	2011-06-30	2019-06-19	Saint-Gobain Ceramics & Plastics, Inc.	Liquid phase sintered silicon carbide abrasive particles
CN103702800B (zh)	2011-06-30	2017-11-10	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
CN103826802B (zh)	2011-09-26	2018-06-12	圣戈本陶瓷及塑料股份有限公司	包括磨料颗粒材料的磨料制品，使用磨料颗粒材料的涂布磨料及其形成方法
EP2797716B1 (en)	2011-12-30	2021-02-17	Saint-Gobain Ceramics & Plastics, Inc.	Composite shaped abrasive particles and method of forming same
KR20140106713A (ko)	2011-12-30	2014-09-03	생-고뱅 세라믹스 앤드 플라스틱스, 인코포레이티드	형상화 연마입자 및 이의 형성방법
CN104114664B (zh)	2011-12-30	2016-06-15	圣戈本陶瓷及塑料股份有限公司	形成成型研磨颗粒
KR101667943B1 (ko)	2012-01-10	2016-10-20	생-고뱅 세라믹스 앤드 플라스틱스, 인코포레이티드	복잡한 형상들을 가지는 연마 입자들 및 이의 성형 방법들
US8840696B2 (en)	2012-01-10	2014-09-23	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
WO2013177446A1 (en)	2012-05-23	2013-11-28	Saint-Gobain Ceramics & Plastics, Inc.	Shaped abrasive particles and methods of forming same
EP2866977B8 (en)	2012-06-29	2023-01-18	Saint-Gobain Ceramics & Plastics, Inc.	Abrasive particles having particular shapes and methods of forming such particles
MX2015004594A (es)	2012-10-15	2015-07-23	Saint Gobain Abrasives Inc	Particulas abrasivas que tienen formas particulares y metodos para formar tales particulas.
EP2938459B1 (en)	2012-12-31	2021-06-16	Saint-Gobain Ceramics & Plastics, Inc.	Particulate materials and methods of forming same
CA3112791A1 (en)	2013-03-29	2014-10-02	Saint-Gobain Abrasives, Inc.	Abrasive particles having particular shapes and methods of forming such particles
TW201502263A (zh)	2013-06-28	2015-01-16	Saint Gobain Ceramics	包含成形研磨粒子之研磨物品
EP3052270A4 (en)	2013-09-30	2017-05-03	Saint-Gobain Ceramics & Plastics, Inc.	Shaped abrasive particles and methods of forming same
WO2015102992A1 (en)	2013-12-31	2015-07-09	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
MX2016013465A (es)	2014-04-14	2017-02-15	Saint-Gobain Ceram & Plastics Inc	Articulo abrasivo que incluye particulas abrasivas conformadas.
US9803119B2 (en)	2014-04-14	2017-10-31	Saint-Gobain Ceramics & Plastics, Inc.	Abrasive article including shaped abrasive particles
WO2015184355A1 (en)	2014-05-30	2015-12-03	Saint-Gobain Abrasives, Inc.	Method of using an abrasive article including shaped abrasive particles
BE1021335B1 (fr)	2014-07-16	2015-11-03	Magotteaux International S.A.	Grains ceramiques et procede pour leur production.
US9914864B2 (en)	2014-12-23	2018-03-13	Saint-Gobain Ceramics & Plastics, Inc.	Shaped abrasive particles and method of forming same
US9707529B2 (en)	2014-12-23	2017-07-18	Saint-Gobain Ceramics & Plastics, Inc.	Composite 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
EP3277459B1 (en)	2015-03-31	2023-08-16	Saint-Gobain Abrasives, Inc.	Fixed abrasive articles and methods of forming 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
CA3118262C (en)	2015-06-11	2023-09-19	Saint-Gobain Ceramics & Plastics, Inc.	Abrasive article including shaped abrasive particles
ES2922927T3 (es)	2016-05-10	2022-09-21	Saint Gobain Ceramics & Plastics Inc	Procedimientos de formación de partículas abrasivas
WO2017197002A1 (en)	2016-05-10	2017-11-16	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
US10563105B2 (en)	2017-01-31	2020-02-18	Saint-Gobain Ceramics & Plastics, Inc.	Abrasive article including shaped abrasive particles
US10759024B2 (en)	2017-01-31	2020-09-01	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
JP7052747B2 (ja) *	2019-01-28	2022-04-12	株式会社デンソー	排気センサ
WO2021133876A1 (en)	2019-12-27	2021-07-01	Saint-Gobain Ceramics & Plastics, Inc.	Abrasive articles and methods of forming same
CN114867582B (zh)	2019-12-27	2024-10-18	圣戈本陶瓷及塑料股份有限公司	磨料制品及其形成方法
CN113845356B (zh) *	2021-10-22	2022-11-29	湖南约瑟夫科技有限公司	一种陶瓷刚玉磨料及其制备方法和应用

Family Cites Families (13)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US3108888A (en) *	1960-08-04	1963-10-29	Du Pont	Colloidal, anisodiametric transition aluminas and processes for making them
US3183071A (en) *	1961-06-19	1965-05-11	Wakefield Corp	Abrasive article
US3909991A (en) *	1970-09-22	1975-10-07	Norton Co	Process for making sintered abrasive grains
US3808015A (en) *	1970-11-23	1974-04-30	Du Pont	Alumina fiber
US3853688A (en) *	1971-06-23	1974-12-10	Du Pont	Continuous filaments and yarns
US3953561A (en) *	1972-10-27	1976-04-27	E. I. Du Pont De Nemours And Company	Firing process for alumina yarn
JPS5524813A (en) *	1978-08-03	1980-02-22	Showa Denko Kk	Alumina grinding grain
BR7902063A (pt) *	1979-04-04	1980-10-21	Colorobbia Brasileira Prod Par	Processo de obtencao de pecas moldadas ou conformadas,com alto teor de oxido de aluminio cristalino resistentes a corrosao,a abrasao e desgaste por solicitacao mecanicas e temperaturas aumentadas
US4314827A (en) *	1979-06-29	1982-02-09	Minnesota Mining And Manufacturing Company	Non-fused aluminum oxide-based abrasive mineral
JPS5983932A (ja) *	1982-09-23	1984-05-15	ステンカ−・コ−ポレ−シヨン	高純度アルミナ粒子の製造法
US4543107A (en) *	1984-08-08	1985-09-24	Norton Company	Vitrified bonded grinding wheels containing sintered gel aluminous abrasive grits
ZA854133B (en) *	1984-06-14	1986-05-28	Norton Co	Process for producing alumina bodies
JPS6126554A (ja) *	1984-07-18	1986-02-05	川崎製鉄株式会社	セラミツク焼結体の製造方法

1985
- 1985-01-10 NZ NZ210805A patent/NZ210805A/en unknown
- 1985-01-14 DK DK017285A patent/DK165551C/da not_active IP Right Cessation
- 1985-01-15 AU AU37680/85A patent/AU584873B2/en not_active Expired
- 1985-01-18 EP EP85100506A patent/EP0152768B1/en not_active Revoked
- 1985-01-18 DE DE8585100506T patent/DE3587386T2/de not_active Revoked
- 1985-01-18 ES ES539675A patent/ES8607888A1/es not_active Expired
- 1985-01-18 DE DE3587823T patent/DE3587823T2/de not_active Revoked
- 1985-01-18 AT AT85100506T patent/ATE90320T1/de not_active IP Right Cessation
- 1985-01-18 BR BR8500231A patent/BR8500231A/pt not_active IP Right Cessation
- 1985-01-18 AT AT8989103599T patent/ATE105541T1/de not_active IP Right Cessation
- 1985-01-18 NO NO850237A patent/NO166783C/no not_active IP Right Cessation
1991
- 1991-09-17 JP JP3310263A patent/JPH0686326B2/ja not_active Expired - Lifetime
1996
- 1996-11-28 JP JP8331395A patent/JP2812928B2/ja not_active Expired - Lifetime

Also Published As

Publication number	Publication date
DK165551B (da)	1992-12-14
JPH06157134A (ja)	1994-06-03
NZ210805A (en)	1988-04-29
DK165551C (da)	1996-08-26
ES539675A0 (es)	1986-06-01
EP0152768A3 (en)	1987-09-16
DK17285A (da)	1985-07-20
ATE90320T1 (de)	1993-06-15
AU3768085A (en)	1985-07-25
JP2812928B2 (ja)	1998-10-22
DE3587386T2 (de)	1993-09-16
NO166783B (no)	1991-05-27
DE3587386D1 (de)	1993-07-15
EP0152768B1 (en)	1993-06-09
BR8500231A (pt)	1985-08-27
ES8607888A1 (es)	1986-06-01
DE3587823D1 (de)	1994-06-16
DK17285D0 (da)	1985-01-14
EP0152768A2 (en)	1985-08-28
AU584873B2 (en)	1989-06-08
JPH0686326B2 (ja)	1994-11-02
NO166783C (no)	1991-09-04
JPH09221659A (ja)	1997-08-26
ATE105541T1 (de)	1994-05-15
DE3587823T2 (de)	1994-09-01

Publication	Publication Date	Title
NO850237L (no)	1985-07-22	Slipemiddelkorn eller keramiske legemer og fremstilling derav
ATE137792T1 (de)	1996-05-15	Verfahren zur herstellung von aluminiumoxid und ceroxid enthaltendem schleifkorn
MY110409A (en)	1998-04-30	Platey alumina
DE69309478D1 (de)	1997-05-07	Aluminiumoxid und zirconiumoxid enthaltendes schleifkorn
SE8104495L (sv)	1982-01-24	Kiselkarbidforpolymerer
SE8104494L (sv)	1982-01-24	Alkylerade eller arylerade kiselkarbidforpolymerer
DE68919602D1 (de)	1995-01-12	Schleifeinsätze.
TW237473B (en)	1995-01-01	Polishing material
NO901915L (no)	1990-10-29	Belagt slipemateriale.
EP0408771A4 (en)	1991-07-17	Alumina ceramic, abrasive material, and production thereof
DE3777215D1 (de)	1992-04-16	Material in form eines kissen zum schleifen, laeppen und polieren.
SE8104497L (sv)	1982-01-24	Kiselkarbidforpolymerer
MX170006B (es)	1993-08-04	Material abrasivo
MX204007A (es)	1994-03-31	Cuerpos de ceramica y su preparacion
IT1191597B (it)	1988-03-23	Dispositivo per il controllo automatico della densita' e della viscosita' della miscela abrasiva e della quantita' di granaglia metallica usata nella segagione dei graniti o pietre dure
DE3671391D1 (de)	1990-06-28	Strahlmuehle zum feinmahlen und/oder zum mahlen bei tieftemperatur und zur oberflaechenbehandlung von vorzugsweise harten, elastischen und/oder thermoplastischen materialien.
IT7950760A0 (it)	1979-11-07	Perfezionamento nei filtri per la classificazione di materiali come sabbia ghiaia carbone e simili
ATE103013T1 (de)	1994-04-15	Abrasives und verschleissfestes material.
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