DE69122804D1 - Verfahren zum Formen von Polyurethanschaum - Google Patents
Verfahren zum Formen von PolyurethanschaumInfo
- Publication number
- DE69122804D1 DE69122804D1 DE69122804T DE69122804T DE69122804D1 DE 69122804 D1 DE69122804 D1 DE 69122804D1 DE 69122804 T DE69122804 T DE 69122804T DE 69122804 T DE69122804 T DE 69122804T DE 69122804 D1 DE69122804 D1 DE 69122804D1
- Authority
- DE
- Germany
- Prior art keywords
- polyurethane foam
- molding polyurethane
- molding
- foam
- polyurethane
- 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
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
- B29C44/34—Auxiliary operations
- B29C44/58—Moulds
- B29C44/588—Moulds with means for venting, e.g. releasing foaming gas
-
- 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
- B29C44/3402—Details of processes or apparatus for reducing environmental damage or for working-up compositions comprising inert blowing agents or biodegradable components
-
- 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
- B29C44/58—Moulds
-
- 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
- B29C44/60—Measuring, controlling or regulating
-
- 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
- B29K2075/00—Use of PU, i.e. polyureas or polyurethanes or derivatives thereof, as moulding material
-
- 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
- Y10S264/78—Processes of molding using vacuum
-
- 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
- Y10S425/00—Plastic article or earthenware shaping or treating: apparatus
- Y10S425/06—Vacuum
-
- 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
- Y10S425/00—Plastic article or earthenware shaping or treating: apparatus
- Y10S425/812—Venting
Landscapes
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Biodiversity & Conservation Biology (AREA)
- Environmental & Geological Engineering (AREA)
- Environmental Sciences (AREA)
- Toxicology (AREA)
- Casting Or Compression Moulding Of Plastics Or The Like (AREA)
- Moulds For Moulding Plastics Or The Like (AREA)
- Manufacture Of Porous Articles, And Recovery And Treatment Of Waste Products (AREA)
- Injection Moulding Of Plastics Or The Like (AREA)
- Molding Of Porous Articles (AREA)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP15343990 | 1990-06-12 | ||
JP3108745A JPH07102583B2 (ja) | 1990-06-12 | 1991-04-12 | ポリウレタン発泡体の成形方法及び成形装置 |
Publications (2)
Publication Number | Publication Date |
---|---|
DE69122804D1 true DE69122804D1 (de) | 1996-11-28 |
DE69122804T2 DE69122804T2 (de) | 1997-03-20 |
Family
ID=26448570
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE69122804T Expired - Lifetime DE69122804T2 (de) | 1990-06-12 | 1991-06-04 | Verfahren zum Formen von Polyurethanschaum |
DE69131608T Expired - Fee Related DE69131608T2 (de) | 1990-06-12 | 1991-06-04 | Vorrichtung zum Formen von Polyurethanschaum |
Family Applications After (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE69131608T Expired - Fee Related DE69131608T2 (de) | 1990-06-12 | 1991-06-04 | Vorrichtung zum Formen von Polyurethanschaum |
Country Status (5)
Country | Link |
---|---|
US (2) | US5464582A (de) |
EP (2) | EP0678367B1 (de) |
JP (1) | JPH07102583B2 (de) |
CA (1) | CA2044232C (de) |
DE (2) | DE69122804T2 (de) |
Families Citing this family (34)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH07102583B2 (ja) * | 1990-06-12 | 1995-11-08 | 豊田合成株式会社 | ポリウレタン発泡体の成形方法及び成形装置 |
JP2518481B2 (ja) * | 1991-09-26 | 1996-07-24 | 豊田合成株式会社 | 自己スキン層付きポリウレタンフォ―ムの製造方法及び製造装置 |
CA2077363C (en) * | 1992-09-02 | 1996-09-03 | Leslie Edward Clark | Vented mold and use thereof |
US5628944A (en) * | 1992-10-30 | 1997-05-13 | Toyoda Gosei Co., Ltd. | Method and apparatus for molding two-color polyurethane parts by RIM |
JP2746024B2 (ja) * | 1992-10-30 | 1998-04-28 | 豊田合成株式会社 | Rimポリウレタン二色成形方法 |
JP2956465B2 (ja) * | 1993-12-27 | 1999-10-04 | 豊田合成株式会社 | Rimポリウレタン二色成形方法及び装置 |
JP2936929B2 (ja) * | 1992-12-22 | 1999-08-23 | 豊田合成株式会社 | 真空箱付き成形装置 |
US5633289A (en) * | 1993-03-16 | 1997-05-27 | Toyoda Gosei Co., Ltd. | Process for molding an integral skin foam and a polyurethane material for molding the same |
DE4447495C2 (de) * | 1993-04-30 | 1999-08-12 | Toyoda Gosei Kk | Verfahren zum Formschäumen von Integralschaum |
JP2982564B2 (ja) * | 1993-06-19 | 1999-11-22 | 豊田合成株式会社 | インテグラルスキンフォームの成形方法 |
US5602188A (en) | 1993-07-13 | 1997-02-11 | Suzuki Sogyo Co., Ltd. | Biodegradable resin foam and method and apparatus for producing same |
US5466404A (en) * | 1993-10-06 | 1995-11-14 | Atoma International Inc. | Controlled venting during molding of polyurethane foam |
US5723152A (en) * | 1995-08-01 | 1998-03-03 | Bridgestone Corporation | Apparatus for vacuum molding expanded synthetic resin parts |
US6156257A (en) * | 1995-12-28 | 2000-12-05 | Toyoda Gosei Co., Ltd | Reactive injection molding process for manufacturing a two-colored molded polyurethane products |
DE19617284A1 (de) * | 1996-04-30 | 1997-11-06 | Hennecke Gmbh | Form zur Herstellung von Formkunststoffen |
DE19701728C2 (de) * | 1997-01-20 | 1998-12-10 | Hennecke Gmbh | Verfahren und Vorrichtung zur Herstellung geschäumter Polyurethan-Formkörper |
CA2291642A1 (en) * | 1997-05-30 | 1998-12-03 | Christopher A. Leite | Vented mold and method for producing a molded article |
JP3780770B2 (ja) * | 1999-09-30 | 2006-05-31 | 豊田合成株式会社 | インテグラルスキンフォームの成形方法及び成形用ポリウレタン材料 |
US6231794B1 (en) * | 1999-12-27 | 2001-05-15 | Lockheed Martin Corporation | Process for making a low density foam filled reticulated absorber by means of vacuum |
JP3951653B2 (ja) * | 2001-09-13 | 2007-08-01 | 豊田合成株式会社 | 成形品の製造方法 |
ITMI20041610A1 (it) * | 2004-08-05 | 2004-11-05 | Crios Spa | Metodo ed impianto a tamburo rotante per la schiumatura sotto vuoto di armadi frigoriferi |
ITMI20041609A1 (it) * | 2004-08-05 | 2004-11-05 | Crios Spa | Procedimento ed apparecchiatura per la schiumatura sottovuoto di armadi frigoriferi |
US20070020420A1 (en) * | 2005-07-21 | 2007-01-25 | Huffel Patrick V | Vehicle glove box and method of fabricating the same |
DE102006031859B4 (de) * | 2006-07-10 | 2013-06-06 | Trw Automotive Safety Systems Gmbh | Lenkrad und Verfahren zur Herstellung eines Lenkrads |
JP5380909B2 (ja) * | 2008-05-30 | 2014-01-08 | 株式会社ブリヂストン | 金型及び樹脂発泡成形品の成形方法 |
WO2010088365A2 (en) * | 2009-01-29 | 2010-08-05 | Radva Corporation | Dual platen molding machine |
JP5519194B2 (ja) * | 2009-06-18 | 2014-06-11 | 本田技研工業株式会社 | 成形品の製造方法及び成形品の製造装置 |
EP2465657A1 (de) * | 2010-12-16 | 2012-06-20 | Basf Se | Verfahren zur Herstellung niederdichter Polyurethanformkörper |
DE102011089332B4 (de) | 2011-12-21 | 2017-03-23 | Siemens Healthcare Gmbh | Magnetresonanzvorrichtung mit einem Lärmschutzelement |
US10020211B2 (en) * | 2014-06-12 | 2018-07-10 | Taiwan Semiconductor Manufacturing Company, Ltd. | Wafer-level molding chase design |
JP2019188604A (ja) * | 2018-04-18 | 2019-10-31 | 株式会社豊和化成 | 発泡ウレタン成形用モールド及びこれを用いた発泡ウレタン製品の製造方法 |
JP7098051B2 (ja) * | 2018-12-06 | 2022-07-08 | キヤノンバージニア, インコーポレイテッド | ランナーを用いたマルチモールドシステム |
CN110450336B (zh) * | 2019-09-16 | 2023-09-15 | 长虹美菱股份有限公司 | 一种冰箱发泡设备及发泡方法 |
CN113980221A (zh) * | 2021-11-09 | 2022-01-28 | 苏州普诺兹电子有限公司 | 抗静电聚氨酯泡棉的制备方法 |
Family Cites Families (63)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3266099A (en) * | 1966-08-16 | Harry R Bucy | Mold parting line venting means | |
US2865052A (en) * | 1955-10-04 | 1958-12-23 | Hooker Chemical Corp | Vented mold for plastic materials |
US3820928A (en) * | 1964-12-29 | 1974-06-28 | J Lemelson | Control system for molding |
AT234363B (de) * | 1960-11-15 | 1964-06-25 | Plast Anstalt | Verfahren und Vorrichtung zum Vergießen von härtbaren Kunststoffen |
GB1240708A (en) * | 1967-07-31 | 1971-07-28 | Upjohn Co | Polyurethane foams |
US3824199A (en) * | 1967-07-31 | 1974-07-16 | Upjohn Co | Process for preparing self-skinned polyurethane foam |
DE1813298A1 (de) * | 1968-12-07 | 1970-06-25 | Schlebach Hydraulik Georg Schl | Formentlueftung fuer Reaktions-Spritzguss (z.B. Polyurethan) |
US3704081A (en) * | 1971-01-21 | 1972-11-28 | Sinclair Koppers Co | Vacuum mold for making foamed polymeric articles |
US3822857A (en) * | 1971-02-16 | 1974-07-09 | Toyo Tire & Rubber Co | Synthetic resin plug for vent hole of mould |
US3889919A (en) * | 1971-12-29 | 1975-06-17 | Ladney M Jr | Venting construction for molds for forming plastic foam parts |
DE2212609A1 (de) * | 1972-03-16 | 1973-10-04 | Ver Foerderung Inst Kunststoff | Einrichtung zum entlueften von formwerkzeugen beim herstellen von formteilen aus schaumkunststoffen |
GB1407244A (en) * | 1972-08-15 | 1975-09-24 | Ici Ltd | Polyurethane foams |
US3970732A (en) * | 1973-09-26 | 1976-07-20 | Kimball International, Inc. | Method of molding rigid foamed polyurethane articles |
DE2366184C2 (de) * | 1973-10-25 | 1980-02-07 | Daimler-Benz Ag, 7000 Stuttgart | Vorrichtung zum Herstellen von Kunststoff-Schaumteilen |
DE2365203B2 (de) * | 1973-12-31 | 1977-02-03 | Dynamit Nobel Ag, 5210 Troisdorf | Herstellen von mehrschichtigen bahnen, platten, formteilen |
DE2435272A1 (de) * | 1974-07-23 | 1976-02-05 | Westfaelische Metall Industrie | Absperrvorrichtung fuer den entlueftungskanal einer giessform |
US4206170A (en) * | 1975-05-06 | 1980-06-03 | The Goodyear Tire & Rubber Company | Method of molding a torus shaped article |
US3997286A (en) * | 1976-03-15 | 1976-12-14 | Chicago Rawhide Manufacturing Company | Molding apparatus and vacuum system therefor |
JPS5917665B2 (ja) * | 1976-11-02 | 1984-04-23 | 横浜ゴム株式会社 | ゴム製品成形用金型 |
FR2428519A1 (fr) * | 1978-06-13 | 1980-01-11 | Ameublement Ind Et Tech | Bouchon pour trou de coulee de matiere expansee dans un moule |
JPS5563238A (en) | 1978-11-07 | 1980-05-13 | Matsushita Refrig Co | Device for molding hard polyurethane foamed article |
JPS5563237A (en) | 1978-11-07 | 1980-05-13 | Matsushita Refrig Co | Device for molding hard polyurethane foamed article |
JPS56111648A (en) * | 1980-02-07 | 1981-09-03 | Tokyo Seat Kk | Manufacture of porous resin product |
WO1982000297A1 (en) * | 1980-07-15 | 1982-02-04 | J Blackwell | Production of synthetic plastics foam material |
GB2092509A (en) * | 1981-02-11 | 1982-08-18 | Ici Ltd | Moulding apparatus and method of manufacturing foamed plastics articles. |
JPS58128824A (ja) * | 1982-01-27 | 1983-08-01 | Hitachi Ltd | 発泡成形方法 |
JPS58138612A (ja) * | 1982-02-13 | 1983-08-17 | Mitsubishi Electric Corp | 注型金型 |
JPS58209535A (ja) * | 1982-05-31 | 1983-12-06 | Toyoda Gosei Co Ltd | 発泡成形用金型 |
CH658810A5 (de) * | 1982-08-25 | 1986-12-15 | Bucher Guyer Ag Masch | Spritzgiessmaschine. |
US4479914A (en) * | 1982-11-01 | 1984-10-30 | Cashiers Plastics | Process and mold for molding foamed plastic articles |
AT374206B (de) * | 1982-11-15 | 1984-03-26 | Hirsch Kurt | Verfahren und vorrichtung zum vorschaeumen von kunststoffen |
DE3310677C1 (de) * | 1983-03-24 | 1984-03-15 | Elastogran Maschinenbau GmbH, 2844 Lemförde | Geteilte Giessform fuer Mehrkomponentenkunststoffe,insbesondere Polyurethane |
US4562990A (en) * | 1983-06-06 | 1986-01-07 | Rose Robert H | Die venting apparatus in molding of thermoset plastic compounds |
US4613110A (en) * | 1983-06-06 | 1986-09-23 | Rose Robert H | Apparatus for venting of dies in molding of thermoset plastic compounds |
JPS6017690B2 (ja) * | 1983-08-08 | 1985-05-04 | 池田物産株式会社 | 高弾性ポリウレタンフオ−ム成形物の製造装置 |
US4579700A (en) * | 1983-11-07 | 1986-04-01 | Union Carbide Corporation | Novel process for making flexible polyurethane cellular products including a novel cell opening technique |
US4572865A (en) * | 1983-12-05 | 1986-02-25 | The Celotex Corporation | Faced foam insulation board and froth-foaming method for making same |
DE3407931A1 (de) * | 1984-03-03 | 1985-09-05 | Bayer Ag, 5090 Leverkusen | Verfahren zur herstellung von formkoerpern auf basis von harnstoffgruppen aufweisenden polyurethanen |
US4517313A (en) * | 1984-04-11 | 1985-05-14 | Abbott Laboratories | Method of making polyurethane foam |
GB8516617D0 (en) * | 1985-07-01 | 1985-08-07 | Ici Plc | Reinforced shaped article |
US4909972A (en) * | 1985-12-02 | 1990-03-20 | Britz Johannes H | Method and apparatus for making a solid foamed tire core |
JPS62164709A (ja) * | 1986-01-14 | 1987-07-21 | Human Ind Corp | ポリウレタンフオ−ムの製造方法 |
CA1267763A (en) * | 1986-03-19 | 1990-04-17 | Kenneth A. Iseler | Vacuum compression molding method using preheated charge |
US4795331A (en) * | 1986-09-15 | 1989-01-03 | The Goodyear Tire & Rubber Company | Mold vent plug |
CA1290895C (en) * | 1986-12-25 | 1991-10-15 | Sadao Kumasaka | Method and an apparatus for producing polyurethane foam |
JPS63268624A (ja) * | 1987-04-27 | 1988-11-07 | Tokyo Seat Kk | 多孔質樹脂材の製造方法及び多孔質複合基材の製造方法 |
JPS645528A (en) * | 1987-06-29 | 1989-01-10 | Colin Electronics | Blood pressure monitor apparatus |
NZ226008A (en) * | 1987-09-21 | 1990-11-27 | Ici Plc | Process for manufacture of polyurethane foams using methylene diphenyl isocyanates and optionally water as blowing agent |
DE8713870U1 (de) * | 1987-10-15 | 1987-12-17 | Maschinenfabrik J. Dieffenbacher Gmbh & Co, 7519 Eppingen | Vorrichtung zur Erzeugung eines Vakuums in einer Formpresse |
US4836272A (en) * | 1987-12-11 | 1989-06-06 | General Motors Corporation | Mold cavity gas removal system with valve position sensor |
US5093067A (en) * | 1988-03-14 | 1992-03-03 | Allied-Signal Inc. | Injection molding of fabric reinforced elastomeric diaphragms |
US4838338A (en) * | 1988-03-29 | 1989-06-13 | General Motors Corporation | Mold cavity gas removal system with gas flow indicator |
US4874308A (en) * | 1988-04-04 | 1989-10-17 | Atlas Gary N | Vacuum assisted transfer mold and vent pin |
FR2634157B1 (fr) * | 1988-07-15 | 1991-07-26 | Casati Francois | Procede et dispositif pour fabriquer par moulage des objets rembourres |
JP2613441B2 (ja) * | 1988-07-18 | 1997-05-28 | トヨタ自動車株式会社 | 発泡ポリウレタンの製法 |
US4946363A (en) * | 1988-07-20 | 1990-08-07 | Union Carbide Chemicals And Plastics Company Inc. | Mold and mold vent |
US4906672A (en) * | 1988-07-29 | 1990-03-06 | Pmc, Inc. | Blowing agents for polyurethane foam |
US5238387A (en) * | 1988-12-09 | 1993-08-24 | Honda Giken Kogyo Kabushiki Kaisha | Apparatus for molding a product of synthetic resin |
US5132329A (en) * | 1990-04-05 | 1992-07-21 | Basf Corporation | Integral skin polyurethane foam |
EP0451559A3 (en) * | 1990-04-05 | 1992-11-25 | Basf Corporation (A Delaware Corp.) | Integral skin polyurethane foam |
JPH07102583B2 (ja) * | 1990-06-12 | 1995-11-08 | 豊田合成株式会社 | ポリウレタン発泡体の成形方法及び成形装置 |
US5166183A (en) * | 1991-04-16 | 1992-11-24 | Miles Inc. | Water-blown integral skin polyurethane foams |
DE4115456A1 (de) * | 1991-05-11 | 1992-11-12 | Basf Ag | Verfahren zur herstellung von fluorchlorkohlenwasserstoff freien, urethangruppen enthaltenden formkoerpern mit einem zelligen kern und einer verdichteten randzone |
-
1991
- 1991-04-12 JP JP3108745A patent/JPH07102583B2/ja not_active Expired - Fee Related
- 1991-06-04 EP EP95110012A patent/EP0678367B1/de not_active Expired - Lifetime
- 1991-06-04 EP EP91109092A patent/EP0461522B1/de not_active Expired - Lifetime
- 1991-06-04 DE DE69122804T patent/DE69122804T2/de not_active Expired - Lifetime
- 1991-06-04 DE DE69131608T patent/DE69131608T2/de not_active Expired - Fee Related
- 1991-06-10 CA CA002044232A patent/CA2044232C/en not_active Expired - Lifetime
-
1994
- 1994-06-29 US US08/268,661 patent/US5464582A/en not_active Expired - Lifetime
- 1994-06-29 US US08/267,398 patent/US5589202A/en not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
EP0461522B1 (de) | 1996-10-23 |
DE69131608D1 (de) | 1999-10-14 |
DE69131608T2 (de) | 2000-04-13 |
EP0678367A1 (de) | 1995-10-25 |
US5589202A (en) | 1996-12-31 |
EP0461522A3 (en) | 1993-04-28 |
CA2044232A1 (en) | 1991-12-13 |
EP0678367B1 (de) | 1999-09-08 |
CA2044232C (en) | 2000-10-24 |
EP0461522A2 (de) | 1991-12-18 |
DE69122804T2 (de) | 1997-03-20 |
US5464582A (en) | 1995-11-07 |
JPH07102583B2 (ja) | 1995-11-08 |
JPH04226313A (ja) | 1992-08-17 |
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