SE317911B - - Google Patents
Info
- Publication number
- SE317911B SE317911B SE9505/66A SE950566A SE317911B SE 317911 B SE317911 B SE 317911B SE 9505/66 A SE9505/66 A SE 9505/66A SE 950566 A SE950566 A SE 950566A SE 317911 B SE317911 B SE 317911B
- Authority
- SE
- Sweden
- Prior art keywords
- fibres
- boron
- fibre
- temperature
- containing compound
- Prior art date
Links
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 abstract 8
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 abstract 6
- 239000000835 fiber Substances 0.000 abstract 6
- 239000002243 precursor Substances 0.000 abstract 5
- ZOXJGFHDIHLPTG-UHFFFAOYSA-N Boron Chemical compound [B] ZOXJGFHDIHLPTG-UHFFFAOYSA-N 0.000 abstract 3
- 229910052796 boron Inorganic materials 0.000 abstract 3
- 150000001875 compounds Chemical class 0.000 abstract 3
- 229910052757 nitrogen Inorganic materials 0.000 abstract 3
- 229910052582 BN Inorganic materials 0.000 abstract 2
- PZNSFCLAULLKQX-UHFFFAOYSA-N Boron nitride Chemical compound N#B PZNSFCLAULLKQX-UHFFFAOYSA-N 0.000 abstract 2
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 abstract 2
- 229910021529 ammonia Inorganic materials 0.000 abstract 2
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 abstract 2
- 230000007797 corrosion Effects 0.000 abstract 2
- 238000005260 corrosion Methods 0.000 abstract 2
- 238000010438 heat treatment Methods 0.000 abstract 2
- 239000001257 hydrogen Substances 0.000 abstract 2
- 229910052739 hydrogen Inorganic materials 0.000 abstract 2
- 229910000069 nitrogen hydride Inorganic materials 0.000 abstract 2
- 239000001301 oxygen Substances 0.000 abstract 2
- 229910052760 oxygen Inorganic materials 0.000 abstract 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract 2
- 229910052810 boron oxide Inorganic materials 0.000 abstract 1
- JKWMSGQKBLHBQQ-UHFFFAOYSA-N diboron trioxide Chemical compound O=BOB=O JKWMSGQKBLHBQQ-UHFFFAOYSA-N 0.000 abstract 1
- 238000011065 in-situ storage Methods 0.000 abstract 1
- 238000005121 nitriding Methods 0.000 abstract 1
- -1 nitrogen containing compound Chemical class 0.000 abstract 1
- 150000002927 oxygen compounds Chemical class 0.000 abstract 1
- 230000000087 stabilizing effect Effects 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
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B21/00—Nitrogen; Compounds thereof
- C01B21/06—Binary compounds of nitrogen with metals, with silicon, or with boron, or with carbon, i.e. nitrides; Compounds of nitrogen with more than one metal, silicon or boron
- C01B21/064—Binary compounds of nitrogen with metals, with silicon, or with boron, or with carbon, i.e. nitrides; Compounds of nitrogen with more than one metal, silicon or boron with boron
-
- 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
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
- C01P2004/00—Particle morphology
- C01P2004/01—Particle morphology depicted by an image
- C01P2004/03—Particle morphology depicted by an image obtained by SEM
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
- C01P2004/00—Particle morphology
- C01P2004/10—Particle morphology extending in one dimension, e.g. needle-like
-
- 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
- C01P2004/61—Micrometer sized, i.e. from 1-100 micrometer
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
- C01P2006/00—Physical properties of inorganic compounds
- C01P2006/10—Solid density
-
- 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
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S264/00—Plastic and nonmetallic article shaping or treating: processes
- Y10S264/19—Inorganic fiber
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Ceramic Engineering (AREA)
- Organic Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Structural Engineering (AREA)
- Materials Engineering (AREA)
- Inorganic Fibers (AREA)
- Glass Compositions (AREA)
- Ceramic Products (AREA)
- Continuous Casting (AREA)
- Solid-Phase Diffusion Into Metallic Material Surfaces (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US47120865A | 1965-07-12 | 1965-07-12 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| SE317911B true SE317911B (cg-RX-API-DMAC7.html) | 1969-11-24 |
Family
ID=23870701
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| SE9505/66A SE317911B (cg-RX-API-DMAC7.html) | 1965-07-12 | 1966-07-12 |
Country Status (13)
| Country | Link |
|---|---|
| US (1) | US3429722A (cg-RX-API-DMAC7.html) |
| AT (1) | AT270052B (cg-RX-API-DMAC7.html) |
| BE (1) | BE683955A (cg-RX-API-DMAC7.html) |
| CH (1) | CH465133A (cg-RX-API-DMAC7.html) |
| DE (1) | DE1571385B2 (cg-RX-API-DMAC7.html) |
| DK (1) | DK130579B (cg-RX-API-DMAC7.html) |
| ES (1) | ES328917A1 (cg-RX-API-DMAC7.html) |
| FR (1) | FR1486361A (cg-RX-API-DMAC7.html) |
| GB (1) | GB1123307A (cg-RX-API-DMAC7.html) |
| LU (1) | LU51520A1 (cg-RX-API-DMAC7.html) |
| NL (1) | NL153823B (cg-RX-API-DMAC7.html) |
| NO (1) | NO117296B (cg-RX-API-DMAC7.html) |
| SE (1) | SE317911B (cg-RX-API-DMAC7.html) |
Families Citing this family (55)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3720741A (en) * | 1969-10-03 | 1973-03-13 | Monsanto Co | Melt spinning process |
| US3725533A (en) * | 1969-11-14 | 1973-04-03 | Carborundum Co | Boron carbide fiber production |
| US3766000A (en) * | 1970-03-02 | 1973-10-16 | Mc Donnell Douglas Corp | Low thermal expansion composites |
| US3668059A (en) * | 1971-01-08 | 1972-06-06 | Carborundum Co | High modulus boron nitride fibers |
| US3913828A (en) * | 1971-09-02 | 1975-10-21 | Avco Corp | Reinforcing ultra-centrifuge rotors |
| US4075276A (en) * | 1974-02-27 | 1978-02-21 | The Carborundum Company | Boron nitride-boron nitride composites |
| US3915742A (en) * | 1974-05-07 | 1975-10-28 | Us Energy | Interelectrode separator for electrochemical cell |
| US4130631A (en) * | 1977-03-02 | 1978-12-19 | The Carborundum Company | BN Bonded BN fiber article from boric oxide fiber |
| CA1085596A (en) * | 1977-03-02 | 1980-09-16 | Robert S. Hamilton | Bn bonded bn fiber article from bn fiber |
| US4309245A (en) * | 1980-03-28 | 1982-01-05 | Kennecott Corporation | Process for manufacturing boron nitride fiber felt using a Fourdrinier machine |
| US4309203A (en) * | 1980-03-28 | 1982-01-05 | Kennecott Corporation | Process for manufacturing boron nitride fiber batts using a spinner |
| US4354986A (en) * | 1980-03-28 | 1982-10-19 | Kennecott Corporation | Process for manufacturing boron nitride fiber mats using a needler |
| US4309244A (en) * | 1980-03-28 | 1982-01-05 | Kennecott Corporation | Process for manufacturing boron nitride fiber mats |
| US4309248A (en) * | 1980-03-28 | 1982-01-05 | Kennecott Corporation | Process for manufacturing boron nitride fiber mats using calender rolls |
| US4749556A (en) * | 1985-12-04 | 1988-06-07 | Union Carbide Corporation | Process for producing boron nitride |
| US4857490A (en) * | 1987-08-31 | 1989-08-15 | Hoechst Celanese Corp. | Process of manufacturing boron ceramics from carboralated diacetylene polymers |
| FR2633279A1 (fr) * | 1988-06-27 | 1989-12-29 | Rhone Poulenc Chimie | Nouveau materiau a base de nitrure de bore, son procede de preparation et son utilisation comme agent de renforcement |
| US5010045A (en) * | 1989-06-02 | 1991-04-23 | The United States Of America As Represented By The United States Department Of Energy | Low-loss binder for hot pressing boron nitride |
| FR2834983B1 (fr) * | 2002-01-22 | 2004-12-17 | Eads Launch Vehicules | Procede de fabrication de fibres de nitrure de bore a partir de borylborazines |
| FR2834982B1 (fr) * | 2002-01-22 | 2004-12-17 | Eads Launch Vehicules | Procede de fabrication de fibres de nitrure de bore et fibres obtenues |
| US7220492B2 (en) * | 2003-12-18 | 2007-05-22 | 3M Innovative Properties Company | Metal matrix composite articles |
| US7131308B2 (en) * | 2004-02-13 | 2006-11-07 | 3M Innovative Properties Company | Method for making metal cladded metal matrix composite wire |
| US20050181228A1 (en) * | 2004-02-13 | 2005-08-18 | 3M Innovative Properties Company | Metal-cladded metal matrix composite wire |
| US7093416B2 (en) * | 2004-06-17 | 2006-08-22 | 3M Innovative Properties Company | Cable and method of making the same |
| US20050279526A1 (en) * | 2004-06-17 | 2005-12-22 | Johnson Douglas E | Cable and method of making the same |
| US20050279527A1 (en) * | 2004-06-17 | 2005-12-22 | Johnson Douglas E | Cable and method of making the same |
| US8025766B2 (en) * | 2007-03-05 | 2011-09-27 | Teijin Limited | Boron nitride-based fiber paper and manufacturing process thereof |
| EP2300367B1 (en) * | 2008-06-18 | 2015-04-22 | Advanced Cerametrics, Inc. | Method for making boron carbide ceramic fibers |
| US8525033B2 (en) * | 2008-08-15 | 2013-09-03 | 3M Innovative Properties Company | Stranded composite cable and method of making and using |
| WO2011008568A2 (en) | 2009-07-16 | 2011-01-20 | 3M Innovative Properties Company | Submersible composite cable and methods |
| JP5866300B2 (ja) | 2010-02-01 | 2016-02-17 | スリーエム イノベイティブ プロパティズ カンパニー | 撚り熱可塑性ポリマー複合体ケーブル、その製造方法及び使用方法 |
| RU2537967C2 (ru) | 2010-02-18 | 2015-01-10 | 3М Инновейтив Пропертиз Компани | Опрессованный соединитель и сборочный узел для композитных кабелей и способы их изготовления и использования |
| WO2012037265A2 (en) | 2010-09-17 | 2012-03-22 | 3M Innovative Properties Company | Fiber-reinforced nanoparticle-loaded thermoset polymer composite wires and cables, and methods |
| US20200299815A1 (en) | 2015-12-08 | 2020-09-24 | 3M Innovative Properties Company | Metal matrix composites including inorganic particles and discontinuous fibers and methods of making same |
| CN105525438B (zh) * | 2016-01-20 | 2018-07-31 | 山东工业陶瓷研究设计院有限公司 | 氮化硼纤维毡及其制备方法 |
| EP3436428B1 (en) | 2016-03-31 | 2024-07-10 | 3M Innovative Properties Company | Bisphenol m diphthalonitrile ether resin, bisphenol p diphthalonitrile ether resin, methods of making same, resin blends, and two component systems |
| EP3559744A1 (en) | 2016-12-23 | 2019-10-30 | 3M Innovative Properties Company | Printable compositions including polymeric and polymerizable components, articles, and methods of making articles therefrom |
| EP3601215A1 (en) | 2017-03-23 | 2020-02-05 | 3M Innovative Properties Company | Resin blends containing a phthalonitrile reactive diluent and a diphthalonitrile resin, prepregs, and articles |
| WO2019023009A1 (en) | 2017-07-25 | 2019-01-31 | 3M Innovative Properties Company | PHOTOPOLYMERIZABLE COMPOSITIONS COMPRISING A URETHANE COMPONENT AND A REACTIVE DILUENT, ARTICLES AND METHODS |
| EP3681434A4 (en) | 2017-09-11 | 2021-04-07 | 3M Innovative Properties Company | RADIATION CURABLE COMPOSITIONS AND COMPOSITE ARTICLES MADE BY AN ADDITIVE MANUFACTURING PROCESS |
| CN111615377A (zh) | 2017-11-22 | 2020-09-01 | 3M创新有限公司 | 包含含有带光引发基团的聚合物或大分子的固化的可自由基聚合组合物的正畸制品 |
| US11904031B2 (en) | 2017-11-22 | 2024-02-20 | 3M Innovative Properties Company | Orthodontic articles comprising polymerized composition comprising at least two free-radical initiators |
| US11389276B2 (en) | 2017-11-22 | 2022-07-19 | 3M Innovative Properties Comany | Photopolymerizable compositions including a urethane component and a monofunctional reactive diluent, articles, and methods |
| WO2019104079A1 (en) | 2017-11-22 | 2019-05-31 | 3M Innovative Properties Company | Orthodontic articles comprising polymerized composition comprising at least two free-radical initiators |
| US12104000B2 (en) | 2018-03-15 | 2024-10-01 | Solventum Intellectual Properties Company | Photopolymerizable compositions including a polypropylene oxide component, articles, and methods |
| US11945900B2 (en) | 2018-06-29 | 2024-04-02 | 3M Innovative Properties Company | Orthodontic articles prepared using a polycarbonate diol, polymerizable compositions, and methods of making the articles |
| CN112367959A (zh) | 2018-06-29 | 2021-02-12 | 3M创新有限公司 | 包含在水性环境中具有改善的强度的固化的可自由基聚合组合物的正畸制品 |
| KR102302706B1 (ko) | 2018-06-29 | 2021-09-15 | 쓰리엠 이노베이티브 프로퍼티즈 캄파니 | 폴리카르보네이트 다이올을 사용하여 제조된 폴리우레탄 메타크릴레이트 중합체를 포함하는 광중합성 조성물, 물품, 및 방법 |
| WO2020003197A2 (en) | 2018-06-29 | 2020-01-02 | 3M Innovative Properties Company | Orthodontic articles prepared using a polycarbonate diol, polymerizable compositions, and methods of making the articles |
| EP3806774A4 (en) | 2018-06-29 | 2022-07-06 | 3M Innovative Properties Company | ORTHODONTIC ARTICLES MANUFACTURED WITH A POLYCARBONATEDIOL AND METHOD FOR THEIR MANUFACTURE |
| US20220056258A1 (en) | 2018-11-19 | 2022-02-24 | 3M Innovative Properties Company | Orthodontic articles comprising polyester urethane (meth)acrylate polymer and monofunctional (meth)acrylate monomer, methods, and polymerizable compositions |
| US12351668B2 (en) | 2019-05-21 | 2025-07-08 | Solventum Intellectual Properties Company | Orthodontic articles comprising polymerized composition with pendent cyclic moieties, methods, and polymerizable compositions |
| CN114560717A (zh) * | 2022-04-06 | 2022-05-31 | 中国科学院赣江创新研究院 | 一种一维多孔氮化硼纤维材料的制备方法及其应用 |
| CN115626829B (zh) * | 2022-12-07 | 2023-03-21 | 山东工业陶瓷研究设计院有限公司 | 一种氮化硼纤维及其制备方法 |
| WO2025057020A1 (en) | 2023-09-12 | 2025-03-20 | Solventum Intellectual Properties Company | Photopolymerizable compositions including urea/acrylamide functional component, articles and methods |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB954285A (en) * | 1959-01-15 | 1964-04-02 | Ti Group Services Ltd | Reinforced refractory materials |
-
1965
- 1965-07-12 US US471208A patent/US3429722A/en not_active Expired - Lifetime
-
1966
- 1966-06-27 GB GB28706/66A patent/GB1123307A/en not_active Expired
- 1966-07-04 AT AT638766A patent/AT270052B/de active
- 1966-07-06 DE DE19661571385 patent/DE1571385B2/de not_active Withdrawn
- 1966-07-08 CH CH997366A patent/CH465133A/fr unknown
- 1966-07-09 ES ES0328917A patent/ES328917A1/es not_active Expired
- 1966-07-11 LU LU51520D patent/LU51520A1/xx unknown
- 1966-07-11 BE BE683955D patent/BE683955A/xx not_active IP Right Cessation
- 1966-07-11 NL NL666609699A patent/NL153823B/xx not_active IP Right Cessation
- 1966-07-11 FR FR69030A patent/FR1486361A/fr not_active Expired
- 1966-07-11 DK DK359866AA patent/DK130579B/da unknown
- 1966-07-11 NO NO163874A patent/NO117296B/no unknown
- 1966-07-12 SE SE9505/66A patent/SE317911B/xx unknown
Also Published As
| Publication number | Publication date |
|---|---|
| NL153823B (nl) | 1977-07-15 |
| AT270052B (de) | 1969-04-10 |
| BE683955A (cg-RX-API-DMAC7.html) | 1967-01-11 |
| CH465133A (fr) | 1968-11-15 |
| FR1486361A (fr) | 1967-06-23 |
| NO117296B (cg-RX-API-DMAC7.html) | 1969-07-28 |
| DK130579C (cg-RX-API-DMAC7.html) | 1975-08-18 |
| GB1123307A (en) | 1968-08-14 |
| US3429722A (en) | 1969-02-25 |
| DK130579B (da) | 1975-03-10 |
| DE1571385A1 (cg-RX-API-DMAC7.html) | 1971-05-19 |
| LU51520A1 (cg-RX-API-DMAC7.html) | 1967-01-11 |
| NL6609699A (cg-RX-API-DMAC7.html) | 1967-01-13 |
| DE1571385B2 (de) | 1971-05-19 |
| ES328917A1 (es) | 1967-08-16 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| SE317911B (cg-RX-API-DMAC7.html) | ||
| GB1396830A (en) | Production of shaped articles of homogeneous mixtures of silicon carbide and nitride | |
| Hrostowski et al. | The solubility of oxygen in silicon | |
| MX2021000623A (es) | Composicion de aislamiento termico a base de granulados de silice, procesos para su preparacion y usos de la misma. | |
| GB1269240A (en) | Process for the modification of carbon black | |
| ES236870A1 (es) | PROCEDIMIENTO DE FABRICACIoN DE NITRURO DE ALUMNIO. | |
| GB1329245A (en) | Method of manufacturing carbon articles | |
| GB1070325A (en) | Process for the maunfacture of alkaline earth metal borides | |
| ES328042A1 (es) | Mejoras introducidas en el procedimiento de sintetizar urea a partir de amoniaco con dioxido de carbono gaseoso. | |
| GB1206468A (en) | Method of manufacturing silicon nitride powder | |
| GB1188011A (en) | Production of Nitrides of Actinide Metals. | |
| KR860000264A (ko) | 2,2,4-트리메틸-1,2-디히드로퀴놀린 제조방법 | |
| GB1070324A (en) | Process for the manufacture of hard materials rich in boron | |
| ES325922A1 (es) | Metodo para la fabricacion de acido cianhidrico. | |
| US2492803A (en) | Carburizing steel articles | |
| GB339371A (en) | Improvements in the manufacture and production of alkaline earth metal cyanates | |
| JPS6418907A (en) | Production of boron nitride | |
| GB1236660A (en) | Preparation of silicon carbide | |
| GB959358A (en) | Production of urea prills of low biuret content | |
| GB901317A (en) | Production of cellulated silica | |
| GB1215005A (en) | Making continuous filaments of carbon | |
| US1230899A (en) | Process of making acetic acid. | |
| GB1080866A (en) | Improvements in or relating to the treatment of pitches and the like | |
| US3867210A (en) | Process for the production of mild steel tubes | |
| GB1130990A (en) | Process for the manufacture of refractory articles |