ES2009278A6 - Procedimiento para la preparacion de sulfato calcico alfa-hemidrato a partir de sulfato calcico dihidrato finamente dividido. - Google Patents
Procedimiento para la preparacion de sulfato calcico alfa-hemidrato a partir de sulfato calcico dihidrato finamente dividido.Info
- Publication number
- ES2009278A6 ES2009278A6 ES8801596A ES8801596A ES2009278A6 ES 2009278 A6 ES2009278 A6 ES 2009278A6 ES 8801596 A ES8801596 A ES 8801596A ES 8801596 A ES8801596 A ES 8801596A ES 2009278 A6 ES2009278 A6 ES 2009278A6
- Authority
- ES
- Spain
- Prior art keywords
- treatment
- hemihydrate
- alpha
- strength
- calciumsulphate
- 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
Links
- 238000000034 method Methods 0.000 title abstract 2
- OSGAYBCDTDRGGQ-UHFFFAOYSA-L calcium sulfate Chemical compound [Ca+2].[O-]S([O-])(=O)=O OSGAYBCDTDRGGQ-UHFFFAOYSA-L 0.000 abstract 2
- 241000132456 Haplocarpha Species 0.000 abstract 1
- 239000002253 acid Substances 0.000 abstract 1
- 235000011132 calcium sulphate Nutrition 0.000 abstract 1
- 239000001175 calcium sulphate Substances 0.000 abstract 1
- 239000011505 plaster Substances 0.000 abstract 1
- 239000004014 plasticizer Substances 0.000 abstract 1
- 150000003839 salts Chemical class 0.000 abstract 1
- 238000012216 screening Methods 0.000 abstract 1
- 238000005507 spraying Methods 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
- C04B22/00—Use of inorganic materials as active ingredients for mortars, concrete or artificial stone, e.g. accelerators, shrinkage compensating agents
- C04B22/08—Acids or salts thereof
- C04B22/14—Acids or salts thereof containing sulfur in the anion, e.g. sulfides
- C04B22/142—Sulfates
- C04B22/143—Calcium-sulfate
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01K—ANIMAL HUSBANDRY; AVICULTURE; APICULTURE; PISCICULTURE; FISHING; REARING OR BREEDING ANIMALS, NOT OTHERWISE PROVIDED FOR; NEW BREEDS OF ANIMALS
- A01K1/00—Housing animals; Equipment therefor
- A01K1/015—Floor coverings, e.g. bedding-down sheets ; Stable floors
- A01K1/0152—Litter
- A01K1/0154—Litter comprising inorganic material
-
- 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
- C01F11/00—Compounds of calcium, strontium, or barium
- C01F11/46—Sulfates
- C01F11/466—Conversion of one form of calcium sulfate to another
-
- 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
- C04B11/00—Calcium sulfate cements
- C04B11/02—Methods and apparatus for dehydrating gypsum
-
- 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
- C04B11/00—Calcium sulfate cements
- C04B11/02—Methods and apparatus for dehydrating gypsum
- C04B11/024—Ingredients added before, or during, the calcining process, e.g. calcination modifiers
-
- 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
- C04B11/00—Calcium sulfate cements
- C04B11/26—Calcium sulfate cements strating from chemical gypsum; starting from phosphogypsum or from waste, e.g. purification products of smoke
- C04B11/268—Calcium sulfate cements strating from chemical gypsum; starting from phosphogypsum or from waste, e.g. purification products of smoke pelletizing of the material before starting the manufacture
-
- 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
- C04B18/00—Use of agglomerated or waste materials or refuse as fillers for mortars, concrete or artificial stone; Treatment of agglomerated or waste materials or refuse, specially adapted to enhance their filling properties in mortars, concrete or artificial stone
- C04B18/02—Agglomerated materials, e.g. artificial aggregates
- C04B18/027—Lightweight materials
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04F—FINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
- E04F15/00—Flooring
- E04F15/12—Flooring or floor layers made of masses in situ, e.g. seamless magnesite floors, terrazzo gypsum floors
-
- 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
- C01P2006/14—Pore volume
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Organic Chemistry (AREA)
- Structural Engineering (AREA)
- Materials Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Civil Engineering (AREA)
- Inorganic Chemistry (AREA)
- Architecture (AREA)
- Environmental Sciences (AREA)
- Zoology (AREA)
- Animal Husbandry (AREA)
- Biodiversity & Conservation Biology (AREA)
- Geology (AREA)
- Compounds Of Alkaline-Earth Elements, Aluminum Or Rare-Earth Metals (AREA)
- Solid-Sorbent Or Filter-Aiding Compositions (AREA)
- Curing Cements, Concrete, And Artificial Stone (AREA)
- Porous Artificial Stone Or Porous Ceramic Products (AREA)
- Moulds, Cores, Or Mandrels (AREA)
- Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)
Abstract
PROCEDIMIENTO PARA LA PREPARACION DE SULFATO CALCICO ALFA-HEMIHIDRATO A PARTIR DE SULFATO CALCICO DIHIDRATO FINAMENTE DIVIDIDO. PROCEDIMIENTO PARA LA PREPARACION DE SULFATO CALCICO ALFA-HEMIHIDRATO A PARTIR DE SULFATO CALCICO DIHIDRATO FINAMENTE DIVIDIDO POR RECRISTALIZACION DEL SULFATO CALCICO DIHIDRATO EN PRESENCIA DE VAPOR DE AGUA SATURADO, EN EL QUE A PARTIR DEL SULFATO CALCICO DIHIDRATO SE CONFORMAN CUERPOS MOLDEADOS QUE TIENEN UN VOLUMEN DE POROS DE 15 A 60%, ASI COMO EN LOS POROS MAS DE 5% EN VOLUMEN DE AIRE (TODOS LOS DATOS PORCENTUALES ESTAN REFERIDOS AL VOLUMEN DE LOS CUERPOS MOLDEADOS INDIVIDUALES). LOS CUERPOS MOLDEADOS SON INTRODUCIDOS EN UN AUTOCLAVE. EN EL CASO DE PRESENCIA DE UNA CANTIDAD SUFICIENTE DE AGUA EN LOS POROS, EL CRECIMIENTO CRISTALINO Y EL TRACTO CRISTALINO DE LOS CRISTALES DE SULFATO CALCICO ALFA-HEMIHIDRATO, QUE CRECEN A PARTIR DE UNA FASE DE SOLUCION ACUOSA, SE CONTROLANMEDIANTE UNA TEMPERATURA DE TRATAMIENTO EN EL INTERVALO ENTRE 110GC Y 180GC ASI COMO LA PRESION DE LA ATMOSFERA DE TRATAMIENTO EN EL AUTOCLAVE. LOS CUERPOS MOLDEADOS, DESPUES DE LA RECRISTALIZACION, SON RETIRADOS DEL AUTOCLAVE Y APORTADOS A SU UTILIZACION.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE3717187 | 1987-05-22 |
Publications (1)
Publication Number | Publication Date |
---|---|
ES2009278A6 true ES2009278A6 (es) | 1989-09-16 |
Family
ID=6328115
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
ES8801596A Expired ES2009278A6 (es) | 1987-05-22 | 1988-05-20 | Procedimiento para la preparacion de sulfato calcico alfa-hemidrato a partir de sulfato calcico dihidrato finamente dividido. |
ES88120944T Expired - Lifetime ES2022975B3 (es) | 1987-05-22 | 1988-12-15 | Proceso de elaboracion de alfasemihidrato de calciosulfato. |
Family Applications After (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
ES88120944T Expired - Lifetime ES2022975B3 (es) | 1987-05-22 | 1988-12-15 | Proceso de elaboracion de alfasemihidrato de calciosulfato. |
Country Status (20)
Country | Link |
---|---|
US (2) | US5015449A (es) |
EP (1) | EP0342272B1 (es) |
JP (1) | JPH0657605B2 (es) |
AT (1) | AT396225B (es) |
BE (1) | BE1002843A5 (es) |
CA (2) | CA1334332C (es) |
CH (1) | CH676974A5 (es) |
CS (2) | CS274599B2 (es) |
DD (2) | DD281593A5 (es) |
DK (1) | DK277088A (es) |
ES (2) | ES2009278A6 (es) |
FI (1) | FI90052C (es) |
FR (1) | FR2615505B1 (es) |
GB (1) | GB2205089B (es) |
GR (1) | GR1001149B (es) |
IT (1) | IT1217676B (es) |
LU (1) | LU87220A1 (es) |
NL (1) | NL191238C (es) |
NO (1) | NO179578C (es) |
SE (1) | SE469720B (es) |
Families Citing this family (36)
Publication number | Priority date | Publication date | Assignee | Title |
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DE3819652C3 (de) * | 1987-05-22 | 1996-08-01 | Pro Mineral Ges | Verfahren zur Erzeugung von als Baustoff geeignetem Calciumsulfat-Alphahalbhydrat aus feuchtem, feinteiligem Rauchgasentschwefelungsgips und seine Verwendung |
DE3800794A1 (de) * | 1988-01-14 | 1989-07-27 | Rwk Rhein Westfael Kalkwerke | Verfahren und anlage zur herstellung von calciumsulfat-halbhydrat in alpha-konfiguration |
DE4008084A1 (de) * | 1990-03-14 | 1991-09-19 | Pro Mineral Ges | Verfahren zur herstellung von gipsfaserplatten, insbesondere von fussbodenplatten |
DK170143B1 (da) * | 1990-09-26 | 1995-06-06 | Skamol As | Fremstilling og anvendelse af sorberende materiale som kattegrus |
DE4034497C1 (es) * | 1990-10-30 | 1992-02-13 | Metallgesellschaft Ag, 6000 Frankfurt, De | |
DE4127930A1 (de) * | 1991-08-23 | 1993-02-25 | Bold Joerg | Verfahren zur herstellung von faserverstaerkten gipsplatten |
US5312609A (en) * | 1992-12-31 | 1994-05-17 | Dravo Lime Company | Method of sulfur dioxide removal from gaseous streams with α-hemihydrate gypsum product formation |
FI945805A (fi) * | 1993-12-16 | 1995-06-17 | Sicowa Verfahrenstechnik Fuet | Sideaine sisärappauslaastia varten |
US5395438A (en) * | 1994-01-14 | 1995-03-07 | Usg Interiors, Inc. | Mineral wool-free acoustical tile composition |
JP2614602B2 (ja) * | 1994-06-09 | 1997-05-28 | 小坂製錬株式会社 | 硫酸液からの板状二水石膏の連続製造法 |
US5595713A (en) * | 1994-09-08 | 1997-01-21 | The Babcock & Wilcox Company | Hydrogen peroxide for flue gas desulfurization |
US5562892A (en) * | 1995-01-26 | 1996-10-08 | Kirk; Donald W. | Process for the production of alpha hemihydrate calcium sulfate from flue gas sludge |
AU4840396A (en) * | 1996-02-16 | 1997-09-02 | Jozsef Hadnagy | Process for the production of gypsum-based composite boards and shaped bodies |
EP0876996B1 (de) * | 1997-05-10 | 2001-12-19 | SICOWA Verfahrenstechnik für Baustoffe GmbH & Co. KG | Verfahren zum Herstellen von Calciumsulfat-Alphahalbhydrat |
US6164026A (en) * | 1997-09-25 | 2000-12-26 | New Jersey Institute Of Technology | Raised access floor |
US6652825B2 (en) | 2001-05-01 | 2003-11-25 | National Gypsum Properties Llc | Method of producing calcium sulfate alpha-hemihydrate |
US7507257B2 (en) * | 2003-02-04 | 2009-03-24 | Wright Medical Technology, Inc. | Injectable resorbable bone graft material, powder for forming same and methods relating thereto for treating bone defects |
CN100352767C (zh) * | 2003-03-20 | 2007-12-05 | G.B.科技有限公司 | 一种α型硫酸钙半水合物及其制造方法和含有它们的混合物 |
US6964704B2 (en) * | 2003-03-20 | 2005-11-15 | G.B. Technologies, Llc | Calcium sulphate-based composition and methods of making same |
JP4075709B2 (ja) * | 2003-07-02 | 2008-04-16 | 住友電装株式会社 | コネクタ |
US7776150B2 (en) * | 2006-03-16 | 2010-08-17 | Koppern Eqipment, Inc. | Process and apparatus for handling synthetic gypsum |
JP5167126B2 (ja) * | 2006-06-29 | 2013-03-21 | 吉野石膏株式会社 | 焼石膏及び石膏ボードの製造方法 |
US7754006B2 (en) * | 2007-03-20 | 2010-07-13 | United States Gypsum Company | Process for manufacturing ready-mixed setting alpha-calcium sulphate hemi-hydrate and kit for same |
DE102007024188B3 (de) * | 2007-05-24 | 2008-04-10 | Grenzebach Bsh Gmbh | Verfahren zur Herstellung von Alpha-Calciumsulfat-Halbhydrat aus Calciumsulfat-Dihydrat und zugehörige Vorrichtung |
US20090208392A1 (en) * | 2008-02-14 | 2009-08-20 | Georgia-Pacific Gypsum, Llc | Process for producing alpha-hemihydrate gypsum |
FI120819B (fi) * | 2008-04-09 | 2010-03-31 | Kemira Oyj | Menetelmä kipsin puhdistamiseksi |
EP2163532A1 (de) | 2008-09-11 | 2010-03-17 | Claudius Peters Technologies GmbH | Verfahren und Anlage zur Herstellung von Hartgips |
CN103482892A (zh) * | 2013-09-17 | 2014-01-01 | 湖北龙源石膏有限公司 | α型高强石膏粉的制备方法 |
WO2016073393A1 (en) * | 2014-11-03 | 2016-05-12 | Georgia-Pacific Gypsum Llc | Microwave heating for gypsum manufacturing processes |
CN105384372B (zh) * | 2015-11-27 | 2018-09-28 | 山东先罗输送机械有限公司 | 脱硫石膏制备建筑石膏的方法及其装置 |
CN105859236A (zh) * | 2016-03-31 | 2016-08-17 | 安徽森科新材料有限公司 | 一种抗静电地板干法石膏胶凝基材及其制备方法 |
CN106145853A (zh) * | 2016-07-01 | 2016-11-23 | 马振义 | 耐水磷石膏模合及其制备方法 |
CN106145854A (zh) * | 2016-07-01 | 2016-11-23 | 马振义 | 耐水脱硫石膏模合及其制备方法 |
HUE043269T2 (hu) * | 2016-10-17 | 2019-08-28 | Lidds Ab | Új eljárás különleges tulajdonságú kalciumszulfát hemihidrát elõállítására |
CN111298805B (zh) * | 2020-03-13 | 2023-04-11 | 吉林省惠净环保有限公司 | 一种燃煤催化剂及其制备方法和应用 |
CN111807736A (zh) * | 2020-07-13 | 2020-10-23 | 湖南金隆再生金属有限公司 | 一种脱硫熟石膏加工工艺 |
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FR602091A (fr) * | 1925-08-13 | 1926-03-12 | Rumford Chemical Works | Perfectionnements relatifs à la fabrication du plâtre de paris |
US1901051A (en) * | 1929-08-08 | 1933-03-14 | United States Gypsum Co | High strength calcined gypsum and process of manufacturing same |
DE800548C (de) * | 1948-10-02 | 1950-11-13 | Metallgesellschaft Akt Ges | Verfahren zur Herstellung von Baugips |
GB829652A (en) * | 1956-01-27 | 1960-03-02 | Edmund Boergardts | Improvements in or relating to the burning of gypsum |
GB832256A (en) * | 1957-02-18 | 1960-04-06 | British Plaster Board Holdings | Improvements in or relating to cementitious material |
CH333247A (fr) * | 1957-10-10 | 1958-10-15 | Parechoc Sa | Raquetterie pour pièce d'horlogerie |
US3305518A (en) * | 1963-07-09 | 1967-02-21 | United States Gypsum Co | Plaster composition containing polyvinyl acetate |
DE1238374B (de) * | 1965-04-24 | 1967-04-06 | Giulini Ges Mit Beschraenkter | Verfahren zur Herstellung von alpha-Calciumsulfat-Halbhydrat |
US3666581A (en) * | 1969-04-01 | 1972-05-30 | United States Gypsum Co | Method of making dried gypsum articles having improved strength to density ratio |
BE756667A (nl) * | 1969-09-26 | 1971-03-01 | Geelen Hendrik E Van | Werkwijze voor het bereiden van alpha-calciumsulfaathalfhydraat |
GB1429187A (en) * | 1972-05-11 | 1976-03-24 | Bpb Industries Ltd | Process for the conversion of anhydrite into gypsum |
JPS4972187A (es) * | 1972-11-10 | 1974-07-12 | ||
DE2337374A1 (de) * | 1973-07-23 | 1975-04-10 | Gypsum Research | Verfahren zur herstellung von faserhaltigen baukoerpern |
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JPS5128117A (ja) * | 1974-09-04 | 1976-03-09 | Mitsui Toatsu Chemicals | Kyokasoseibutsu |
JPS52146422A (en) * | 1976-05-31 | 1977-12-06 | Matsushita Electric Works Ltd | Production of inorganic hardend body |
JPS5337595A (en) * | 1976-09-21 | 1978-04-06 | Osaka Kouhai Kk | Manufacturing process for higher strength gypsum hardened material from crude gypsum |
JPS5355629A (en) * | 1976-10-29 | 1978-05-20 | Mitsubishi Heavy Ind Ltd | Method of improving supporting force of road bed |
DE2658915C3 (de) * | 1976-12-24 | 1987-06-19 | Gebr. Knauf Westdeutsche Gipswerke, 8715 Iphofen | Verfahren zur Herstellung von stückigem Calciumsulfat-Dihydrat |
DE2704577A1 (de) * | 1977-02-04 | 1978-08-10 | Babcock Bsh Ag | Anlage und verfahren fuer das abtrennen von alpha-kalziumsulfat-halbhydratschlaemmen aus einer suspension |
JPS5811369B2 (ja) * | 1977-08-29 | 1983-03-02 | 太平洋セメント株式会社 | 石こう針状結晶細径繊維の製造方法 |
JPS5510406A (en) * | 1978-07-05 | 1980-01-24 | Idemitsu Kosan Co Ltd | Production of gypsum |
JPS5595669A (en) * | 1978-05-16 | 1980-07-21 | Mitsubishi Heavy Ind Ltd | Asphalt filler |
JPS553314A (en) * | 1978-06-17 | 1980-01-11 | Idemitsu Kosan Co Ltd | Production of fibrous gypsum |
JPS6041028B2 (ja) * | 1980-09-16 | 1985-09-13 | 亀雄 堀川 | 貼華焼成品の製造方法 |
US4309391A (en) * | 1980-12-03 | 1982-01-05 | United States Gypsum Company | Lump process alpha gypsum |
DE3048506C2 (de) * | 1980-12-22 | 1986-09-11 | Rigips GmbH, 3452 Bodenwerder | Trockene pulverförmige Putzmischung und Verfahren zu ihrer Herstellung |
DE3117662A1 (de) * | 1981-05-05 | 1982-11-25 | Heinrich 4350 Recklinghausen Quante | Gipsstein- und gipssandsteinherstellung |
DE3222865C2 (de) * | 1981-07-10 | 1992-10-22 | Steag Ag, 4300 Essen | Verfahren zum Granulieren von bei chemischen Prozessen anfallendem Gips und Verwendung einer Kompaktierungseinrichtung zum Granulieren von Gips nach dem Verfahren |
DE3232077C2 (de) * | 1982-08-28 | 1986-10-23 | Rheinisch-Westfälisches Elektrizitätswerk AG, 4300 Essen | Verfahren und Vorrichtung zur Entfernung von Schwefeldioxid und anderen Schadstoffen aus Rauchgasen |
US4604141A (en) * | 1983-04-15 | 1986-08-05 | Hitachi, Ltd. | Slip casting mold |
DE3502637A1 (de) * | 1985-01-26 | 1986-09-11 | Frank W. Dr.-Ing. 6600 Saarbrücken Fink | Verfahren zum kalzinieren von stueckigem rauchgasentschwefelungsgips mittels dampfeinwirkung |
DE3612931A1 (de) * | 1986-04-17 | 1987-10-22 | Hoelter Heinz | Bergbaumoertel aus abfallbergen der kohlegewinnung |
AU7748187A (en) * | 1986-08-28 | 1988-03-03 | Winroc Holdings Ltd. | High strength, fire-resistant gypsum composition |
-
1988
- 1988-05-13 GB GB8811393A patent/GB2205089B/en not_active Expired - Lifetime
- 1988-05-16 CH CH1840/88A patent/CH676974A5/de not_active IP Right Cessation
- 1988-05-17 GR GR880100324A patent/GR1001149B/el unknown
- 1988-05-18 FI FI882327A patent/FI90052C/fi not_active IP Right Cessation
- 1988-05-18 JP JP63119404A patent/JPH0657605B2/ja not_active Expired - Lifetime
- 1988-05-19 SE SE8801873A patent/SE469720B/sv not_active IP Right Cessation
- 1988-05-19 AT AT0131288A patent/AT396225B/de not_active IP Right Cessation
- 1988-05-19 FR FR8806696A patent/FR2615505B1/fr not_active Expired - Lifetime
- 1988-05-20 BE BE8800563A patent/BE1002843A5/fr not_active IP Right Cessation
- 1988-05-20 CS CS344988A patent/CS274599B2/cs unknown
- 1988-05-20 CS CS883448A patent/CS276735B6/cs unknown
- 1988-05-20 ES ES8801596A patent/ES2009278A6/es not_active Expired
- 1988-05-20 DD DD88315961A patent/DD281593A5/de unknown
- 1988-05-20 NO NO882200A patent/NO179578C/no unknown
- 1988-05-20 DD DD88315964A patent/DD272291A5/de not_active IP Right Cessation
- 1988-05-20 DK DK277088A patent/DK277088A/da not_active Application Discontinuation
- 1988-05-20 IT IT20672/88A patent/IT1217676B/it active
- 1988-05-20 LU LU87220A patent/LU87220A1/de unknown
- 1988-05-20 NL NL8801305A patent/NL191238C/xx not_active IP Right Cessation
- 1988-05-23 US US07/197,604 patent/US5015449A/en not_active Expired - Fee Related
- 1988-05-23 US US07/197,442 patent/US5015450A/en not_active Expired - Fee Related
- 1988-05-24 CA CA000567518A patent/CA1334332C/en not_active Expired - Fee Related
- 1988-05-24 CA CA000567517A patent/CA1335034C/en not_active Expired - Fee Related
- 1988-12-15 ES ES88120944T patent/ES2022975B3/es not_active Expired - Lifetime
- 1988-12-15 EP EP88120944A patent/EP0342272B1/de not_active Expired - Lifetime
Also Published As
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Effective date: 20020401 |