ES2134806T3 - Procedimiento para extruir espuma de baja densidad usando agua como agente de hinchamiento. - Google Patents
Procedimiento para extruir espuma de baja densidad usando agua como agente de hinchamiento.Info
- Publication number
- ES2134806T3 ES2134806T3 ES92911463T ES92911463T ES2134806T3 ES 2134806 T3 ES2134806 T3 ES 2134806T3 ES 92911463 T ES92911463 T ES 92911463T ES 92911463 T ES92911463 T ES 92911463T ES 2134806 T3 ES2134806 T3 ES 2134806T3
- Authority
- ES
- Spain
- Prior art keywords
- water
- low density
- thermoplastic elastomer
- density foam
- procedure
- 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
Links
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title abstract 3
- 239000004620 low density foam Substances 0.000 title abstract 2
- 238000000034 method Methods 0.000 title abstract 2
- 239000003795 chemical substances by application Substances 0.000 title 1
- 230000008961 swelling Effects 0.000 title 1
- 229920002725 thermoplastic elastomer Polymers 0.000 abstract 5
- 239000004604 Blowing Agent Substances 0.000 abstract 1
- 239000006260 foam Substances 0.000 abstract 1
- 239000000203 mixture Substances 0.000 abstract 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C44/00—Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles
- B29C44/20—Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles for articles of indefinite length
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C44/00—Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles
- B29C44/34—Auxiliary operations
- B29C44/3442—Mixing, kneading or conveying the foamable material
- B29C44/3446—Feeding the blowing agent
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/03—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the shape of the extruded material at extrusion
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/03—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the shape of the extruded material at extrusion
- B29C48/09—Articles with cross-sections having partially or fully enclosed cavities, e.g. pipes or channels
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/03—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the shape of the extruded material at extrusion
- B29C48/12—Articles with an irregular circumference when viewed in cross-section, e.g. window profiles
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
- B29K2007/00—Use of natural rubber as moulding material
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
- B29K2021/00—Use of unspecified rubbers as moulding material
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
- B29K2023/00—Use of polyalkenes or derivatives thereof as moulding material
- B29K2023/10—Polymers of propylene
- B29K2023/12—PP, i.e. polypropylene
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
- B29K2105/00—Condition, form or state of moulded material or of the material to be shaped
- B29K2105/04—Condition, form or state of moulded material or of the material to be shaped cellular or porous
- B29K2105/046—Condition, form or state of moulded material or of the material to be shaped cellular or porous with closed cells
Landscapes
- Extrusion Moulding Of Plastics Or The Like (AREA)
- Manufacture Of Porous Articles, And Recovery And Treatment Of Waste Products (AREA)
- Molding Of Porous Articles (AREA)
Abstract
EN UN PROCESO PARA EXTRUSAR UNA ESPUMA DE BAJA DENSIDAD SE SELECCIONA UN ELASTOMERO TERMOPLASTICO ESPUMABLE TAL COMO GOMA TERMOPLASTICA. EL ELASTOMERO TERMOPLASTICO SELECCIONADO SE SUMINISTRA ENTONCES AL INTERIOR DE UN CILINDRO EXTRUSOR CALENTADO EN DONDE SE COMPRIME Y SE FUNDE MEDIANTE LA ACCION DE UN TORNILLO SINFIN. SE INTRODUCE UN AGENTE ESPUMANTE QUE CONSTA DE AGUA EN EL ELASTOMERO TERMOPLASTICO FUNDIDO. EL ELASTOMERO TERMOPLASTICO FUNDIDO Y EL AGUA SE MEZCLAN Y LUEGO SE ENFRIAN HASTA UNA TEMPERATURA PREDETERMINADA, UNIFORME. LA MEZCLA SE EMPUJA ENTONCES A TRAVES DE UN TROQUEL PARA FORMAR UN PERFIL DE ESPUMA EXTRUDIDA.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US68963591A | 1991-04-23 | 1991-04-23 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| ES2134806T3 true ES2134806T3 (es) | 1999-10-16 |
Family
ID=24769298
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| ES92911463T Expired - Lifetime ES2134806T3 (es) | 1991-04-23 | 1992-04-23 | Procedimiento para extruir espuma de baja densidad usando agua como agente de hinchamiento. |
Country Status (11)
| Country | Link |
|---|---|
| US (2) | US5607629A (es) |
| EP (1) | EP0603183B1 (es) |
| JP (1) | JP3655302B2 (es) |
| AT (1) | ATE183685T1 (es) |
| AU (1) | AU650762B2 (es) |
| CA (1) | CA2102227C (es) |
| DE (1) | DE69229866T2 (es) |
| DK (1) | DK0603183T3 (es) |
| ES (1) | ES2134806T3 (es) |
| GB (1) | GB2271742B (es) |
| WO (1) | WO1992018326A2 (es) |
Families Citing this family (24)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| ATE183685T1 (de) * | 1991-04-23 | 1999-09-15 | Amesbury Group Inc | Verfahren zum extrudieren von schaumstoff niedriger dichte unter verwendung von wasser als treibmittel |
| DE4401432C1 (de) * | 1994-01-19 | 1995-06-22 | Berstorff Gmbh Masch Hermann | Verfahren und Vorrichtung zum Herstellen eines TPE-Schaumprofiles für die Bau- und Kfz.-Industrie |
| CA2301651A1 (en) * | 1997-08-28 | 1999-03-04 | Wilfred E. Lewallen | Foamed core composite plate for use in trailer walls and doors |
| US6818437B1 (en) * | 1998-05-16 | 2004-11-16 | Applera Corporation | Instrument for monitoring polymerase chain reaction of DNA |
| US6110404A (en) | 1998-08-14 | 2000-08-29 | Ligon Brothers Manufacturing Company | Method of extruding thermoplastic elastomer foam using water as a blowing agent |
| US6344159B1 (en) * | 1999-09-21 | 2002-02-05 | Ut-Battelle, Llc | Method for extruding pitch based foam |
| MXPA02003659A (es) * | 1999-10-15 | 2003-05-23 | Siemens Canada Ltd | Metodo para crear una forma de fusion en caliente para el uso con un montaje de induccion de aire. |
| WO2002100940A1 (en) * | 2001-06-08 | 2002-12-19 | Thermoplastic Rubber Systems, Inc. | Thermoplastic vulcanizates |
| US6755999B2 (en) * | 2001-10-29 | 2004-06-29 | Su Shun-Fua | Method of manufacturing a release-controlled pipe |
| US20040006148A1 (en) * | 2002-07-06 | 2004-01-08 | Polymer 5 | Processes and products for foaming thermoplastic materials using a pellet or powder as a vehicle to deliver a physical foaming agent, and products formed therewith |
| US20040038018A1 (en) * | 2002-08-22 | 2004-02-26 | Trexel, Inc. | Thermoplastic elastomeric foam materials and methods of forming the same |
| TWI227186B (en) * | 2003-08-07 | 2005-02-01 | Microcell Composite Company | A normal pressure continuous foaming method of thermoplastic elastomer composite material |
| EP1671778A4 (en) * | 2003-10-09 | 2008-02-20 | Misawa Homes Co | EXTRUSION MOLDING MACHINE |
| US7358282B2 (en) | 2003-12-05 | 2008-04-15 | Kimberly-Clark Worldwide, Inc. | Low-density, open-cell, soft, flexible, thermoplastic, absorbent foam and method of making foam |
| US7291382B2 (en) * | 2004-09-24 | 2007-11-06 | Kimberly-Clark Worldwide, Inc. | Low density flexible resilient absorbent open-cell thermoplastic foam |
| US20060070301A1 (en) * | 2004-10-05 | 2006-04-06 | Marvin Lumber And Cedar Company, D/B/A Marvin Windows And Doors | Fiber reinforced structural member with cap |
| DE102005059366A1 (de) * | 2005-12-13 | 2007-06-14 | Gitschner, Hans Walter, Dr.-Ing. | Verfahren und Anordnungen zur Fertigung von silanvernetzten Polyethylenadern für Energiekabel |
| US8158689B2 (en) | 2005-12-22 | 2012-04-17 | Kimberly-Clark Worldwide, Inc. | Hybrid absorbent foam and articles containing it |
| WO2007106390A2 (en) * | 2006-03-10 | 2007-09-20 | Amesbury Group, Inc | Apparatus and method for manufacturing reinforced weatherstrip, and such a weatherstrip |
| GB0608216D0 (en) | 2006-04-26 | 2006-06-07 | R & D Factory The Ltd | Method and apparatus for forming articles from mouldable materials |
| US20130303647A1 (en) | 2011-01-28 | 2013-11-14 | Mitsui Chemicals, Inc. | Foaming agent and manufacturing method forming agent therefor, rubber composition, cross-linked foam and manufacturing method therefor, and rubber molded article |
| WO2015034889A2 (en) * | 2013-09-04 | 2015-03-12 | Zzyzx Polymers LLC | Methods for increasing throughput rates of solid-state extrusion devices |
| US10329834B2 (en) | 2015-02-13 | 2019-06-25 | Amesbury Group, Inc. | Low compression-force TPE weatherseals |
| CN121181982B (zh) * | 2025-11-13 | 2026-04-10 | 东北林业大学 | 一种发泡木塑复合材料的制备方法 |
Family Cites Families (46)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2386995A (en) * | 1942-02-28 | 1945-10-16 | Goodrich Co B F | Synthetic spongy material |
| FR924538A (fr) * | 1946-03-28 | 1947-08-07 | Du Pont | Matières spongieuses ou cellulaires artificielles dérivées du polythène |
| US2797443A (en) * | 1954-09-17 | 1957-07-02 | Monsanto Chemicals | Process of making foamed resins |
| US2911382A (en) * | 1956-09-21 | 1959-11-03 | Monsanto Chemicals | Process of making extruded styrene polymer foams |
| US3251911A (en) * | 1963-04-16 | 1966-05-17 | Bell Telephone Labor Inc | Preparation of expanded polymers |
| US3309439A (en) * | 1964-11-06 | 1967-03-14 | Lakeside Plastics Corp | Method of producing an expanded polystyrene foam having a dense surface |
| US3482006A (en) * | 1966-04-13 | 1969-12-02 | Mobil Oil Corp | Process for extruding a thermoplastic foam |
| US3827841A (en) * | 1969-06-24 | 1974-08-06 | Sekisui Chemical Co Ltd | Extrusion apparatus for use in the production of thermoplastic resin foams |
| US3814779A (en) * | 1971-04-01 | 1974-06-04 | Cosden Oil & Chem Co | Method of forming foamed polystyrene articles from polystyrene beads |
| US3824139A (en) * | 1972-04-10 | 1974-07-16 | Ici Ltd | Plastics laminate |
| US4181647A (en) * | 1973-01-11 | 1980-01-01 | Phillips Cables Limited | Process for extrusion coating of a wire with a cellular thermoplastic resin material |
| US4049760A (en) * | 1973-03-16 | 1977-09-20 | Societe Chimique Des Charbonnages | Method of manufacture of foamed thermo-plastic extruded shapes |
| US3940467A (en) * | 1973-07-20 | 1976-02-24 | Bethlehem Steel Corporation | Method of injection molding a structural foamed thermoplastic article having a uniform swirl-free and indent-free surface |
| US3928521A (en) * | 1973-12-27 | 1975-12-23 | Dayco Corp | Method of making microporous elastomeric material |
| CA1059718A (en) * | 1975-03-12 | 1979-08-07 | Timothy S. Dougherty | Advancing and working thermoplastic materials |
| DE2514691C3 (de) * | 1975-04-04 | 1978-09-07 | Hans Dieter Dipl.-Holzw. Pelikan | Verfahren zum Erzeugen von Zellhohlräumen in thermoplastischen Kunststoffen oder Kunststofformmassen |
| US4130535A (en) * | 1975-07-21 | 1978-12-19 | Monsanto Company | Thermoplastic vulcanizates of olefin rubber and polyolefin resin |
| DE2713181A1 (de) * | 1977-03-25 | 1978-10-05 | Kabel Metallwerke Ghh | Verfahren zur herstellung geschaeumter materialien |
| US4124336A (en) * | 1977-05-18 | 1978-11-07 | Mobil Oil Corporation | Poppet check valve for controlled feeding of blowing agent |
| US4311628A (en) * | 1977-11-09 | 1982-01-19 | Monsanto Company | Thermoplastic elastomeric blends of olefin rubber and polyolefin resin |
| NL8001732A (nl) * | 1980-03-25 | 1981-10-16 | Stamicarbon | Werkwijze voor de vervaardiging van produkten bestaande uit geschuimde en/of verknoopte polymere kunststoffen. |
| US4312950A (en) * | 1980-03-31 | 1982-01-26 | Hillwood Corporation | Disposable swab and culture unit |
| US4278767A (en) * | 1980-05-07 | 1981-07-14 | Arco Polymers, Inc. | Fire-retardant monocarboxylic acid copolymers |
| US4323655A (en) * | 1980-05-07 | 1982-04-06 | Atlantic Richfield Company | Rubber-modified fire-retardant anhydride copolymers |
| US4312958A (en) * | 1980-05-07 | 1982-01-26 | Atlantic Richfield Company | Fire-retardant, rubber-modified, monocarboxylic acid copolymers |
| CA1136350A (en) * | 1980-05-19 | 1982-11-23 | Uniroyal, Inc. | Expanded elastomer-modified thermoplastic based on thermoplastic elastomer-poly- alpha-olefin resin blend |
| US4344710A (en) * | 1980-06-10 | 1982-08-17 | Mobil Oil Corporation | Polymer foam extrusion system |
| US4401612A (en) * | 1981-06-17 | 1983-08-30 | The B. F. Goodrich Company | Method and apparatus for extruding foam polymeric materials involving the use of an extrusion screw having spaced multiple flight mixing means thereon |
| US4652590A (en) * | 1981-12-22 | 1987-03-24 | The Dow Chemical Company | Blended polyethylene-polystyrene compositions suitable for preparation of closed cell foam products |
| US4455272A (en) * | 1982-03-29 | 1984-06-19 | Standard Oil Company (Indiana) | Method of extruding a polystyrene foam using both a physical blowing agent and water |
| US4419309A (en) * | 1982-04-30 | 1983-12-06 | Mobil Oil Corporation | Polystyrene foam extrusion into a foam assisting atmosphere |
| US4526736A (en) * | 1982-06-30 | 1985-07-02 | Cosden Technology, Inc. | Process and apparatus for manufacturing flexible foamed articles |
| US4470938A (en) * | 1982-08-27 | 1984-09-11 | Mobil Oil Corporation | Method and apparatus for extrusion of thermoplastic foam |
| US4438223A (en) * | 1983-08-22 | 1984-03-20 | Uniroyal, Inc. | Blowing agent composition containing zinc formate and metal salt activator |
| US4517316A (en) * | 1984-01-24 | 1985-05-14 | Dasurat Enterprises Pte Ltd. | Porous irrigation pipe prepared from particulate elastomer and thermoplastic binder containing controlled moisture content |
| CA1222115A (en) * | 1984-06-22 | 1987-05-26 | Hans Hede | Method of fabricating composite products |
| US4657715A (en) * | 1984-12-31 | 1987-04-14 | Mobil Oil Corporation | Process for preparing smooth skinned extruded foams with water-organic blowing agent |
| US4559367A (en) * | 1985-04-12 | 1985-12-17 | The Dow Chemical Company | Combination blowing agent and filler for thermoplastic foams |
| US4746477A (en) * | 1986-06-18 | 1988-05-24 | James River-Norwalk, Inc. | Production of partially foamed extruded plastic products |
| GB8616132D0 (en) * | 1986-07-02 | 1986-08-06 | Bp Chem Int Ltd | Polyurethane foams |
| US4801484A (en) * | 1988-01-13 | 1989-01-31 | The Dow Chemical Company | Highly loaded coalesced foam |
| US4824720A (en) * | 1988-02-11 | 1989-04-25 | The Dow Chemical Company | Coalesced polyolefin foam having exceptional cushioning properties |
| JPH0629334B2 (ja) * | 1987-02-20 | 1994-04-20 | 鐘淵化学工業株式会社 | 直鎖低密度ポリエチレン樹脂型内発泡成形体の製造方法 |
| US4898760A (en) * | 1987-11-17 | 1990-02-06 | Amesbury Industries, Inc. | Process and apparatus for extruding a low density elastomeric thermoplastic foam |
| US5070111A (en) * | 1991-03-13 | 1991-12-03 | Advanced Elastomer Systems, L.P. | Foaming thermoplastic elastomers |
| ATE183685T1 (de) * | 1991-04-23 | 1999-09-15 | Amesbury Group Inc | Verfahren zum extrudieren von schaumstoff niedriger dichte unter verwendung von wasser als treibmittel |
-
1992
- 1992-04-23 AT AT92911463T patent/ATE183685T1/de active
- 1992-04-23 WO PCT/US1992/003339 patent/WO1992018326A2/en not_active Ceased
- 1992-04-23 EP EP92911463A patent/EP0603183B1/en not_active Expired - Lifetime
- 1992-04-23 DE DE69229866T patent/DE69229866T2/de not_active Expired - Lifetime
- 1992-04-23 CA CA002102227A patent/CA2102227C/en not_active Expired - Lifetime
- 1992-04-23 ES ES92911463T patent/ES2134806T3/es not_active Expired - Lifetime
- 1992-04-23 DK DK92911463T patent/DK0603183T3/da active
- 1992-04-23 AU AU19116/92A patent/AU650762B2/en not_active Expired
- 1992-04-23 JP JP51141992A patent/JP3655302B2/ja not_active Expired - Fee Related
- 1992-04-23 GB GB9321967A patent/GB2271742B/en not_active Expired - Lifetime
-
1994
- 1994-06-07 US US08/255,118 patent/US5607629A/en not_active Expired - Lifetime
-
1997
- 1997-03-03 US US08/808,482 patent/US5788889A/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| GB2271742B (en) | 1995-03-15 |
| CA2102227A1 (en) | 1992-10-24 |
| GB9321967D0 (en) | 1994-02-16 |
| EP0603183A1 (en) | 1994-06-29 |
| DE69229866D1 (de) | 1999-09-30 |
| AU650762B2 (en) | 1994-06-30 |
| JP3655302B2 (ja) | 2005-06-02 |
| WO1992018326A3 (en) | 1992-11-26 |
| WO1992018326A2 (en) | 1992-10-29 |
| ATE183685T1 (de) | 1999-09-15 |
| US5788889A (en) | 1998-08-04 |
| US5607629A (en) | 1997-03-04 |
| AU1911692A (en) | 1992-11-17 |
| CA2102227C (en) | 1996-04-16 |
| DE69229866T2 (de) | 2000-02-24 |
| EP0603183B1 (en) | 1999-08-25 |
| GB2271742A (en) | 1994-04-27 |
| JPH06507128A (ja) | 1994-08-11 |
| DK0603183T3 (da) | 1999-12-13 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| FG2A | Definitive protection |
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