BR8702685A - Processo para formar uma massa refrataria coerente sobre uma superficie,mistura de particulas - Google Patents

Processo para formar uma massa refrataria coerente sobre uma superficie,mistura de particulas

Info

Publication number
BR8702685A
BR8702685A BR8702685A BR8702685A BR8702685A BR 8702685 A BR8702685 A BR 8702685A BR 8702685 A BR8702685 A BR 8702685A BR 8702685 A BR8702685 A BR 8702685A BR 8702685 A BR8702685 A BR 8702685A
Authority
BR
Brazil
Prior art keywords
particle mixture
refractory mass
coherent refractory
coherent
mass
Prior art date
Application number
BR8702685A
Other languages
English (en)
Inventor
Leon Philippe Mottet
Pierre Robyn
Pierre Laroche
Original Assignee
Glaverbel
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
Application filed by Glaverbel filed Critical Glaverbel
Publication of BR8702685A publication Critical patent/BR8702685A/pt

Links

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
    • C04B35/01—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
    • C04B35/03—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 magnesium oxide, calcium oxide or oxide mixtures derived from dolomite
    • 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
    • C04B35/626—Preparing or treating the powders individually or as batches ; preparing or treating macroscopic reinforcing agents for ceramic products, e.g. fibres; mechanical aspects section B
    • C04B35/628—Coating the powders or the macroscopic reinforcing agents
    • 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
    • C04B35/013—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 containing carbon
    • 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
    • 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
    • C04B35/626—Preparing or treating the powders individually or as batches ; preparing or treating macroscopic reinforcing agents for ceramic products, e.g. fibres; mechanical aspects section B
    • C04B35/63—Preparing or treating the powders individually or as batches ; preparing or treating macroscopic reinforcing agents for ceramic products, e.g. fibres; mechanical aspects section B using additives specially adapted for forming the products, e.g.. binder binders
    • C04B35/6303—Inorganic additives
    • 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
    • C04B35/651—Thermite type sintering, e.g. combustion sintering
    • 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
    • C04B35/66—Monolithic refractories or refractory mortars, including those whether or not containing clay
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27—FURNACES; KILNS; OVENS; RETORTS
    • F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
    • F27D1/00—Casings; Linings; Walls; Roofs
    • F27D1/16—Making or repairing linings increasing the durability of linings or breaking away linings
    • F27D1/1636—Repairing linings by projecting or spraying refractory materials on the lining
    • F27D1/1642—Repairing linings by projecting or spraying refractory materials on the lining using a gunning apparatus
    • F27D1/1647—Repairing linings by projecting or spraying refractory materials on the lining using a gunning apparatus the projected materials being partly melted, e.g. by exothermic reactions of metals (Al, Si) with oxygen
    • F27D1/1652—Flame guniting; Use of a fuel
    • 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
    • C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
    • C04B2111/00034—Physico-chemical characteristics of the mixtures
    • C04B2111/00146—Sprayable or pumpable mixtures
    • C04B2111/00155—Sprayable, i.e. concrete-like, materials able to be shaped by spraying instead of by casting, e.g. gunite
    • 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
    • C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
    • C04B2235/02—Composition of constituents of the starting material or of secondary phases of the final product
    • C04B2235/30—Constituents and secondary phases not being of a fibrous nature
    • C04B2235/42—Non metallic elements added as constituents or additives, e.g. sulfur, phosphor, selenium or tellurium
    • C04B2235/422—Carbon
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27—FURNACES; KILNS; OVENS; RETORTS
    • F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
    • F27D1/00—Casings; Linings; Walls; Roofs
    • F27D1/16—Making or repairing linings increasing the durability of linings or breaking away linings
    • F27D1/1636—Repairing linings by projecting or spraying refractory materials on the lining
    • F27D1/1642—Repairing linings by projecting or spraying refractory materials on the lining using a gunning apparatus
    • F27D1/1647—Repairing linings by projecting or spraying refractory materials on the lining using a gunning apparatus the projected materials being partly melted, e.g. by exothermic reactions of metals (Al, Si) with oxygen
    • F27D1/1652—Flame guniting; Use of a fuel
    • F27D2001/1657—Solid fuel

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Ceramic Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Materials Engineering (AREA)
  • Structural Engineering (AREA)
  • Organic Chemistry (AREA)
  • Inorganic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Combustion & Propulsion (AREA)
  • Compositions Of Oxide Ceramics (AREA)
  • Ceramic Products (AREA)
  • Furnace Housings, Linings, Walls, And Ceilings (AREA)
  • Solid Fuels And Fuel-Associated Substances (AREA)
  • Combustion Methods Of Internal-Combustion Engines (AREA)
  • Fuel Cell (AREA)
  • Mold Materials And Core Materials (AREA)
  • Coating By Spraying Or Casting (AREA)
BR8702685A 1986-05-16 1987-05-15 Processo para formar uma massa refrataria coerente sobre uma superficie,mistura de particulas BR8702685A (pt)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
LU86431A LU86431A1 (fr) 1986-05-16 1986-05-16 Procede de formation d'une masse refractaire sur une surface et melange de particules pour former une telle masse

Publications (1)

Publication Number Publication Date
BR8702685A true BR8702685A (pt) 1988-03-01

Family

ID=19730700

Family Applications (1)

Application Number Title Priority Date Filing Date
BR8702685A BR8702685A (pt) 1986-05-16 1987-05-15 Processo para formar uma massa refrataria coerente sobre uma superficie,mistura de particulas

Country Status (27)

Country Link
US (2) US4818574A (pt)
JP (1) JP2583053B2 (pt)
KR (1) KR940005092B1 (pt)
CN (1) CN1014050B (pt)
AR (1) AR244185A1 (pt)
AT (1) AT393500B (pt)
AU (1) AU589768B2 (pt)
BE (1) BE1002069A4 (pt)
BR (1) BR8702685A (pt)
CA (1) CA1305573C (pt)
DD (1) DD265219A5 (pt)
DE (1) DE3715985A1 (pt)
ES (1) ES2005609A6 (pt)
FI (1) FI84595C (pt)
FR (1) FR2598704B1 (pt)
GB (1) GB2190671B (pt)
IL (1) IL82486A (pt)
IT (1) IT1208414B (pt)
LU (1) LU86431A1 (pt)
MX (1) MX168589B (pt)
NL (1) NL8701153A (pt)
PL (2) PL153448B1 (pt)
RU (1) RU1828460C (pt)
SE (1) SE463873B (pt)
TR (1) TR25415A (pt)
YU (1) YU45821B (pt)
ZA (1) ZA873069B (pt)

Families Citing this family (27)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB8729418D0 (en) * 1987-12-17 1988-02-03 Glaverbel Surface treatment of refractories
US4981628A (en) * 1988-10-11 1991-01-01 Sudamet, Ltd. Repairing refractory linings of vessels used to smelt or refine copper or nickel
US4946806A (en) * 1988-10-11 1990-08-07 Sudamet, Ltd. Flame spraying method and composition
US5013499A (en) * 1988-10-11 1991-05-07 Sudamet, Ltd. Method of flame spraying refractory material
LU87550A1 (fr) * 1989-06-30 1991-02-18 Glaverbel Procede de formation d'une masse refractaire sur une surface et melange de particules destine a ce procede
US5229337A (en) * 1989-06-30 1993-07-20 Glaverbel Composition of matter for use in a process of forming a porous refractory mass
US5242639A (en) * 1989-07-25 1993-09-07 Glaverbel Ceramic welding process
GB8916951D0 (en) * 1989-07-25 1989-09-13 Glaverbel Ceramic welding process and powder mixture for use in the same
FR2670481B1 (fr) * 1990-12-18 1994-01-21 Albert Duval Composition pour la reparation par soudage sur site de produits refractaires.
US5380563A (en) * 1991-06-20 1995-01-10 Coal Industry (Patents) Limited Ceramic welding
GB9113369D0 (en) * 1991-06-20 1991-08-07 Coal Industry Patents Ltd Improvements in or relating to ceramic welding
GB9113370D0 (en) * 1991-06-20 1991-08-07 Coal Industry Patents Ltd Improvements in or relating to ceramic welding
US5686028A (en) * 1991-07-03 1997-11-11 Glaverbel Process for forming a coherent refractory mass on a surface
LU87969A1 (fr) * 1991-07-03 1993-02-15 Glaverbel Procede et melange destine a former une masse refractaire coherente sur une surface
GB2269223B (en) * 1992-07-31 1996-03-06 Fosbel Int Ltd Surface treatment of refractories
US5700309A (en) * 1993-12-01 1997-12-23 Glaverbel Method and powder mixture for repairing oxide based refractory bodies
GB9324655D0 (en) * 1993-12-01 1994-01-19 Glaverbel A method and powder mixture for repairing oxide based refractory bodies
US6186869B1 (en) 1999-02-12 2001-02-13 Cetek Limited Cleaning using welding lances and blasting media
US6602556B2 (en) * 2001-08-28 2003-08-05 Saint-Gobain Abrasives Technology Company Ceramic shell thermal spray powders and methods of use thereof
EP1711658A4 (en) * 2004-02-06 2008-11-26 Gjl Patents Llc METHOD AND DEVICE FOR ROAD MARKING
US6969214B2 (en) * 2004-02-06 2005-11-29 George Jay Lichtblau Process and apparatus for highway marking
US7449068B2 (en) * 2004-09-23 2008-11-11 Gjl Patents, Llc Flame spraying process and apparatus
US20070113781A1 (en) * 2005-11-04 2007-05-24 Lichtblau George J Flame spraying process and apparatus
US20070116865A1 (en) * 2005-11-22 2007-05-24 Lichtblau George J Process and apparatus for highway marking
US20070116516A1 (en) * 2005-11-22 2007-05-24 Lichtblau George J Process and apparatus for highway marking
KR101349436B1 (ko) 2012-02-24 2014-02-05 고려대학교 산학협력단 해양 미생물 하헬라 제주엔시스의 제주엔올라이드 생합성 유전자 클러스터
CN106756993A (zh) * 2016-12-01 2017-05-31 广州市泓智机械有限公司 一种金属件复合陶瓷材料涂层配方及其生产工艺

Family Cites Families (23)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1458723A (en) * 1917-11-01 1923-06-12 Buffalo Refractory Corp Refractory composition
US2300683A (en) * 1941-03-01 1942-11-03 John F Mcclaskey Firebrick
US2937101A (en) * 1957-06-06 1960-05-17 Gen Electric Heat resistant composition
US3544666A (en) * 1967-01-10 1970-12-01 Asahi Glass Co Ltd Method for producing a heat insulating refractory using calcined geyserite having a high tridymite content
BE757466A (pt) * 1969-11-04 1971-04-14 Glaverbel
US3800983A (en) * 1969-11-04 1974-04-02 Glaverbel Apparatus for forming refractory masses
GB1298701A (en) * 1969-11-12 1972-12-06 Foseco Int Heat-insulating antipiping compounds
JPS4946364A (pt) * 1972-09-06 1974-05-02
US3990862A (en) * 1975-01-31 1976-11-09 The Gates Rubber Company Liquid heat exchanger interface and method
LU80997A1 (fr) * 1978-03-09 1979-06-18 Centre Rech Metallurgique Procede pour la protection des parois refractaires des recipients metallurgiques
US4230750A (en) * 1979-08-15 1980-10-28 Eutectic Corporation Metallo-thermic powder
US4222782A (en) * 1979-09-04 1980-09-16 Norton Company Refractory ramming mix containing aluminum powder for metal melting furnaces
JPS5659679A (en) * 1979-10-13 1981-05-23 Sumitomo Metal Ind Flame spray material for furnace wall repair
US4416999A (en) * 1981-08-05 1983-11-22 Nippon Steel Corporation Refractory powder flame projection moldings
ZA825593B (en) * 1981-08-11 1983-06-29 Coal Ind Method and apparatus for repairing refractory substrates
US4489022A (en) * 1981-11-25 1984-12-18 Glaverbel Forming coherent refractory masses
GB2144054B (en) * 1983-07-30 1986-07-30 Glaverbel Apparatus for and method of spraying for forming refractories
JPS6054981A (ja) * 1983-09-01 1985-03-29 川崎炉材株式会社 高炉出銑樋の火炎溶射吹付補修材
JPS60161379A (ja) * 1984-01-28 1985-08-23 新日本製鐵株式会社 火炎溶射用耐火材粉末
JPS6191070A (ja) * 1984-10-09 1986-05-09 大光炉材株式会社 発熱性熱間補修材
GB2170191B (en) * 1985-01-26 1988-08-24 Glaverbel Forming refractory masses and composition of matter for use in forming such refractory masses
JPS61201674A (ja) * 1985-03-01 1986-09-06 川崎炉材株式会社 金属精錬炉用溶射材料
US4696855A (en) * 1986-04-28 1987-09-29 United Technologies Corporation Multiple port plasma spray apparatus and method for providing sprayed abradable coatings

Also Published As

Publication number Publication date
FR2598704A1 (fr) 1987-11-20
DD265219A5 (de) 1989-02-22
SE8702006D0 (sv) 1987-05-15
GB8711500D0 (en) 1987-06-17
FR2598704B1 (fr) 1992-10-30
FI871822A0 (fi) 1987-04-27
JPS62270469A (ja) 1987-11-24
PL265714A1 (en) 1988-07-21
SE8702006L (sv) 1987-11-17
IL82486A (en) 1990-11-29
JP2583053B2 (ja) 1997-02-19
LU86431A1 (fr) 1987-12-16
KR940005092B1 (ko) 1994-06-10
IL82486A0 (en) 1987-11-30
ATA105287A (de) 1991-04-15
FI84595C (fi) 1991-12-27
DE3715985A1 (de) 1987-11-19
ZA873069B (en) 1987-10-23
AR244185A1 (es) 1993-10-29
NL8701153A (nl) 1987-12-16
KR880013844A (ko) 1988-12-22
ES2005609A6 (es) 1989-03-16
PL153486B1 (en) 1991-04-30
TR25415A (tr) 1993-02-03
YU86887A (en) 1988-10-31
CN87103429A (zh) 1988-02-17
US4818574A (en) 1989-04-04
US4988647A (en) 1991-01-29
FI84595B (fi) 1991-09-13
AU589768B2 (en) 1989-10-19
FI871822A (fi) 1987-11-17
CA1305573C (en) 1992-07-21
YU45821B (sh) 1992-07-20
CN1014050B (zh) 1991-09-25
IT1208414B (it) 1989-06-12
AU7223187A (en) 1987-11-19
RU1828460C (ru) 1993-07-15
PL153448B1 (en) 1991-04-30
BE1002069A4 (fr) 1990-06-19
IT8767363A0 (it) 1987-04-29
GB2190671B (en) 1990-02-21
SE463873B (sv) 1991-02-04
GB2190671A (en) 1987-11-25
AT393500B (de) 1991-10-25
MX168589B (es) 1993-05-31

Similar Documents

Publication Publication Date Title
BR8702685A (pt) Processo para formar uma massa refrataria coerente sobre uma superficie,mistura de particulas
BR8703185A (pt) Processo para modificar a superficie de silica finamente dividida
BR8506188A (pt) Processo para a formacao de uma massa refrataria sobre uma superficie e composicao de material para apergir contra uma superficie para formar uma massa refrataria
BR8602234A (pt) Processo para preparar um iniciador suportado
BR8801531A (pt) Processo para foto-polimerizacao de uma composicao
BR8802051A (pt) Processo para a preparacao de uma composicao detergente granular
BR8702527A (pt) Processo para a preparacao de uma triazol-sulfonamida
BR8803908A (pt) Processo para a preparacao de um polimero de 1-olefina
BR8802484A (pt) Processo para a preparacao de isocianatos
BR8803759A (pt) Processo para a preparacao de 2,2,6,6-tetrametil-4-piperidilaminas
BR8803596A (pt) Processo para a preparacao de uma poliolefina
BR7805176A (pt) Processo para a preparacao de um tijolo de magnesiacarbono e produto resultante
BR8604366A (pt) Processo e aparelho para formar uma massa refrataria sobre uma superficie
BR8707028A (pt) Processo para a preparacao de mercaptometilfenois
BR9202589A (pt) Processo e mistura para formar uma massa refrataria coerente sobre uma superficie
BR8103445A (pt) Processo para a preparacao de uma mistura de hidrocarbonetos
BR8107699A (pt) Processo para a preparacao de uma mistura de hidrocarbonetos
PT89166A (pt) Processo para a preparacao de composicoes de borracha modificada
BR8801821A (pt) Processo para produzir um ester metacrilico
PT81356B (pt) Processo para a preparacao de uma tinta anti-vegetativa
PT89039A (pt) Processo para a preparacao de l-ramnose
PT84072B (pt) Processo para a preparacao de esteroides aminoglicosidicos
BR8803678A (pt) Processo para a preparacao de polieteramidas
PT84233B (pt) Processo aperfeicoado para a resolucao de 1-aminoindanos
BR8904309A (pt) Processo para a preparacao de polibutadieno de elevado teor de vinila

Legal Events

Date Code Title Description
FB19 Grant procedure suspended (art. 19)
FF Decision: intention to grant
KD Notifcation of receipt (letter patent)
FG Letter patent granted
B21A Patent or certificate of addition expired [chapter 21.1 patent gazette]

Free format text: PATENTE EXTINTA EM 15/05/2002

B15K Others concerning applications: alteration of classification

Ipc: C04B 35/628 (2006.01), C04B 35/01 (2006.0