JP4039689B2 - 瀝青外装用の、特に屋根被覆用の合成繊維補強材 - Google Patents
瀝青外装用の、特に屋根被覆用の合成繊維補強材 Download PDFInfo
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- JP4039689B2 JP4039689B2 JP51858697A JP51858697A JP4039689B2 JP 4039689 B2 JP4039689 B2 JP 4039689B2 JP 51858697 A JP51858697 A JP 51858697A JP 51858697 A JP51858697 A JP 51858697A JP 4039689 B2 JP4039689 B2 JP 4039689B2
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- bitumen
- synthetic fiber
- fiber reinforcement
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- polyester
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B5/00—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts
- B32B5/22—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by the presence of two or more layers which are next to each other and are fibrous, filamentary, formed of particles or foamed
- B32B5/24—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by the presence of two or more layers which are next to each other and are fibrous, filamentary, formed of particles or foamed one layer being a fibrous or filamentary layer
- B32B5/26—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by the presence of two or more layers which are next to each other and are fibrous, filamentary, formed of particles or foamed one layer being a fibrous or filamentary layer another layer next to it also being fibrous or filamentary
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B27/00—Layered products comprising a layer of synthetic resin
- B32B27/36—Layered products comprising a layer of synthetic resin comprising polyesters
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B5/00—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts
- B32B5/02—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by structural features of a fibrous or filamentary layer
- B32B5/022—Non-woven fabric
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- D—TEXTILES; PAPER
- D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
- D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
- D04H1/00—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
- D04H1/40—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties
- D04H1/42—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties characterised by the use of certain kinds of fibres insofar as this use has no preponderant influence on the consolidation of the fleece
- D04H1/4326—Condensation or reaction polymers
- D04H1/435—Polyesters
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- D—TEXTILES; PAPER
- D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
- D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
- D04H1/00—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
- D04H1/40—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties
- D04H1/42—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties characterised by the use of certain kinds of fibres insofar as this use has no preponderant influence on the consolidation of the fleece
- D04H1/4374—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties characterised by the use of certain kinds of fibres insofar as this use has no preponderant influence on the consolidation of the fleece using different kinds of webs, e.g. by layering webs
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- D—TEXTILES; PAPER
- D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
- D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
- D04H1/00—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
- D04H1/40—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties
- D04H1/44—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties the fleeces or layers being consolidated by mechanical means, e.g. by rolling
- D04H1/46—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties the fleeces or layers being consolidated by mechanical means, e.g. by rolling by needling or like operations to cause entanglement of fibres
- D04H1/48—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties the fleeces or layers being consolidated by mechanical means, e.g. by rolling by needling or like operations to cause entanglement of fibres in combination with at least one other method of consolidation
- D04H1/482—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties the fleeces or layers being consolidated by mechanical means, e.g. by rolling by needling or like operations to cause entanglement of fibres in combination with at least one other method of consolidation in combination with shrinkage
-
- D—TEXTILES; PAPER
- D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
- D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
- D04H13/00—Other non-woven fabrics
-
- D—TEXTILES; PAPER
- D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
- D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
- D04H5/00—Non woven fabrics formed of mixtures of relatively short fibres and yarns or like filamentary material of substantial length
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2262/00—Composition or structural features of fibres which form a fibrous or filamentary layer or are present as additives
- B32B2262/02—Synthetic macromolecular fibres
- B32B2262/0276—Polyester fibres
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2419/00—Buildings or parts thereof
- B32B2419/06—Roofs, roof membranes
-
- 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
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/31504—Composite [nonstructural laminate]
- Y10T428/31815—Of bituminous or tarry residue
Landscapes
- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Mechanical Engineering (AREA)
- Laminated Bodies (AREA)
- Treatments For Attaching Organic Compounds To Fibrous Goods (AREA)
- Woven Fabrics (AREA)
- Nonwoven Fabrics (AREA)
- Synthetic Leather, Interior Materials Or Flexible Sheet Materials (AREA)
- Body Structure For Vehicles (AREA)
- Reinforced Plastic Materials (AREA)
- Fittings On The Vehicle Exterior For Carrying Loads, And Devices For Holding Or Mounting Articles (AREA)
- Paper (AREA)
- Yarns And Mechanical Finishing Of Yarns Or Ropes (AREA)
Description
通常、屋根の被覆用などに常用される瀝青外装の製造技術において、本来横方向へ順応するポリエステルステ−プルまたは連続撚糸ファイバ−の不織ラップから成る合成繊維補強材を使用することはよく知られている。
ここ数年来、瀝青に湿潤させ、高温下、張力をかけて瀝青処理した繊維補強材の横方向の収縮を防止することを目的に、本出願人は在来ラップの二層間に繊維補強材の縦方向に対して相互に平行に配列された長さ約70mmのフィラメントを有するポリエステルファイバ−の薄い層を挿入して来た。
この方法は、瀝青の湿潤工程において、横方向収縮の問題解決には役立ったが、瀝青外装が敷設された後、それに覆われた屋根が夏の太陽熱を受けて膨張し、それが瀝青外装に反応することから生ずる他の重要な問題に対しては、あまり効果的ではないことが判明した。事実、このような膨張効果により、瀝青は軟化し、繊維補強材はその過程で受けた変形により、収縮する傾向がある。
イタリア特許1,237,149号及び対応米国特許第5,118,550号には、瀝青外装用の合成繊維補強材が記述されているが、それによれば、複数の平行して連続するガラスフィラメントがポリエステル不織ファイバ−の二層間に挿入され、縦方向に伸長するように工夫されている。これは合成繊維補強材を縦方向に強化することを目的としたものである。
高いヤング率を特徴とするガラスフィラメントは、その一方で、引張力に対しては可成りの抵抗力を持つ実質的に剛補強物となる欠点を示すが、繊維補強材から縦に強化する力を突然奪ってしまう。更に、その抵抗力が中断する前でも、ガラスフィラメントは屋根の熱膨張に対して、それらを囲む不織ポリエステルに関して、明らかに異なる仕方で反応し、一つのフィラメントから次のフィラメントへと一連のひだを作り出す。最後に、ガラスフィラメントを使用することは、工程中にガラス粒子が発生し、作業員に有害な症状を生じせしめるということを意味し、スクラップの回収や、廃棄物の処理にも明らかに問題を起こす。
この技術の現況に鑑み、本発明は湿潤工程中における横方向の収縮を防ぎ、敷設後の屋根の熱膨張に対して柔軟に対応し、それに良く耐え得る瀝青外装用の合成補強材を提供することを目的としている。
本発明によれば、この目的はポリエステルファイバ−の不織ラップ二層から成る合成繊維補強材によって達成され、この二層間に繊維補強材の縦方向に対して相互に平行に配列され、20Gpa未満のヤング率を有するポリエステル撚糸から成っていることを特徴とする、複数の連続強化フィラメントを挿入する。
かくして、ポリエステル撚糸による強化は、本発明による繊維補強材が瀝青の湿潤工程において製品の横断収縮の問題を解決し、同時に瀝青外装が敷設された後、屋根の熱膨張に対して柔軟に対応し、繊維補強材を囲むポリエステルラップと同じように伸長、短縮し、ガラス撚糸よりも緩やかな伸長に対して抵抗力を備えることを可能にしたことを観察することが出来た。
一方、従来技術によるガラス補強撚糸から成る製品に対しては、本発明による繊維補強材は、作業員の不快感や、あらゆる種類の生態学的問題を回避し、同時に廃棄物の回収や再利用を促す、より大きな可能性をもたらすという利点も持っている。
本発明による繊維補強材の可能な一つの実施例はここに添付された図面の非限定的実施例に説明されている通りである。即ち、
図1は、上から見た繊維補強材の平面図を示す。
図2は、図1のII−II線繊維補強材の拡大縦断面図を示す。
図3は、図1のIII−III線繊維補強材の拡大横断面図を示す。
これらの図面には、本発明による繊維補強材が示されていて、これは不織ポリエステルラップ、ステ−プルまたは連続撚糸の二層1及び2によって形成されており、縫合するか、熱収縮させるか、或いは他の適切な結び方で、固定されている。
不織ラップの二層間には、繊維補強材の縦方向に対して相互に平行に配列された中強度ポリエステル(20Gpa未満、好ましくは10Gpaから14Gpaの範囲内にあるヤング率)の複数の連続撚糸3がある。
当然のことながら、縦に補強された撚糸の使用は、もし望むならば、より厚味のある、またはより薄みのある一連の横及び縦方向に補強されたポリエステル撚糸網の構築の確定までは、横方向に補強された同じような撚糸を同時に使用することを妨げるものではない。
Claims (4)
- ポリエステルファイバー不織ラップの二層(1、2)から成り、その二層間に繊維補強材の縦方向に対して相互に平行に配列された複数の連続補強フィラメント(3)が挿入された瀝青外装用、特に屋根被覆用の合成繊維補強材であって、前記連続補強フィラメントが20Gpa未満のヤング率を有するポリエステル撚糸から成ることを特徴とする合成繊維補強材。
- 前記ポリエステル撚糸(3)は、10Gpaから14Gpaにわたるヤング率を示すことを特徴とする請求の範囲1記載の合成繊維補強材。
- 繊維補強材の横方向に対して相互に平行に配列された複数の連続補強フィラメントを更に備えることを特徴とする請求の範囲1記載の合成繊維補強材。
- 前記不織ラップは短繊維であることを特徴とする請求の範囲1記載の合成繊維補強材。
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
IT95MI002353A IT1280113B1 (it) | 1995-11-16 | 1995-11-16 | Supporto tessile sintetico per guaine bituminose,particolarmente per il rivestimento di tetti |
IT95A002353 | 1995-11-16 | ||
PCT/EP1996/005006 WO1997018364A2 (en) | 1995-11-16 | 1996-11-11 | A synthetic textile support for bituminous sheaths, particularly for coating roofs |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2000500084A JP2000500084A (ja) | 2000-01-11 |
JP4039689B2 true JP4039689B2 (ja) | 2008-01-30 |
Family
ID=11372530
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP51858697A Expired - Fee Related JP4039689B2 (ja) | 1995-11-16 | 1996-11-11 | 瀝青外装用の、特に屋根被覆用の合成繊維補強材 |
Country Status (12)
Country | Link |
---|---|
US (1) | US6131351A (ja) |
EP (1) | EP0862667B1 (ja) |
JP (1) | JP4039689B2 (ja) |
CN (1) | CN1067449C (ja) |
AT (1) | ATE191758T1 (ja) |
DE (1) | DE69607763T2 (ja) |
ES (1) | ES2144787T3 (ja) |
GR (1) | GR3033516T3 (ja) |
IT (1) | IT1280113B1 (ja) |
PL (1) | PL182375B1 (ja) |
PT (1) | PT862667E (ja) |
WO (1) | WO1997018364A2 (ja) |
Families Citing this family (15)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
ITMI20010489A1 (it) * | 2001-03-08 | 2002-09-08 | Freudenberg Politex S R L | Supporto composito con proprieta' antincendio per guaine bituminose per la copertura di tetti |
ITMI20010547A1 (it) * | 2001-03-15 | 2002-09-15 | Freudenberg Politex S R L | Supporto tessile sintetico per guaine bituminose per la copertura di tetti |
US20040191508A1 (en) * | 2003-02-11 | 2004-09-30 | Hubbard Michael J. | Peel-and-stick installation method for thermoplastic-type covering systems |
US20040157074A1 (en) * | 2003-02-11 | 2004-08-12 | Hubbard Michael J. | Peel-and-stick fabric backed covering membrane |
US7430837B2 (en) * | 2003-08-14 | 2008-10-07 | Bfs Diversified Products, Llc. | Membrane with mechanical securement attached |
ITMI20032223A1 (it) * | 2003-11-17 | 2005-05-18 | Freudenberg Politex S R L | Supporto tessile sintetico per guaine bituminose preferibilmente per il rivestimento dei tetti |
US20050186941A1 (en) * | 2004-02-10 | 2005-08-25 | General Motors Corporation | Verification of telematic unit in fail to voice situation |
DK1566476T3 (da) * | 2004-02-18 | 2009-03-23 | Johns Manville Europe Gmbh | Dimensionsstabilt indlæg til tagbaner eller tætningsbaner |
US20080233825A1 (en) * | 2007-03-21 | 2008-09-25 | Mohamed Walid Gamaleldin | Articles Including High Modulus Fibrous Material |
IT1402753B1 (it) * | 2010-11-15 | 2013-09-18 | Politex S A S Di Freudenberg Politex S R L | Supporto tessile rinforzato con filamenti longitudinali di fibre cellulosiche, particolarmente per membrane bituminose. |
IT1402882B1 (it) | 2010-11-22 | 2013-09-27 | Politex S A S Di Freudenberg Politex S R L | Supporto tessile consolidato per via chimica e termica, particolarmente per membrane bituminose. |
ITMI20131114A1 (it) | 2013-07-03 | 2015-01-04 | Politex S A S Di Freudenberg Polit Ex S R L | Substrato di supporto per membrana bituminosa e suo procedimento di preparazione. |
CN108149804B (zh) * | 2018-01-16 | 2020-04-14 | 北京东方雨虹防水技术股份有限公司 | 自体支撑式柔性防水卷材及其制备方法和防水施工方法 |
ES2859663T3 (es) | 2018-04-03 | 2021-10-04 | Politex S A S Di Freudenberg Politex S R L | Tela no tejida reforzada |
PT3860846T (pt) * | 2019-05-06 | 2021-11-16 | Politex S A S Di Freudenberg Politex S R L | Substratos compósitos resistentes à chama para membranas betuminosas |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS58983B2 (ja) * | 1978-07-24 | 1983-01-08 | 三井化学株式会社 | アスフアルト防水用基材 |
US4539254A (en) * | 1982-11-24 | 1985-09-03 | Bay Mills Limited | Reinforcing composite for roofing membranes and process for making such composites |
US4762744A (en) * | 1986-08-08 | 1988-08-09 | Bay Mills Limited | Reinforcing composite for roofing membranes and process for making such composites |
FR2640288B1 (fr) * | 1988-12-13 | 1993-06-18 | Rhone Poulenc Fibres | Support a base de nappe non tissee en textile chimique et son procede de fabrication |
US5314556A (en) * | 1990-05-08 | 1994-05-24 | Bay Mills Limited | Process for manufacturing reinforced roofing membranes |
US5195290A (en) * | 1992-06-03 | 1993-03-23 | American Heartland Roofing Products, Inc. | Laminar roofing product |
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1995
- 1995-11-16 IT IT95MI002353A patent/IT1280113B1/it active IP Right Grant
-
1996
- 1996-11-11 JP JP51858697A patent/JP4039689B2/ja not_active Expired - Fee Related
- 1996-11-11 PL PL96326667A patent/PL182375B1/pl not_active IP Right Cessation
- 1996-11-11 PT PT96939044T patent/PT862667E/pt unknown
- 1996-11-11 WO PCT/EP1996/005006 patent/WO1997018364A2/en not_active Application Discontinuation
- 1996-11-11 DE DE69607763T patent/DE69607763T2/de not_active Revoked
- 1996-11-11 EP EP96939044A patent/EP0862667B1/en not_active Revoked
- 1996-11-11 US US09/077,008 patent/US6131351A/en not_active Expired - Lifetime
- 1996-11-11 CN CN96198405A patent/CN1067449C/zh not_active Expired - Fee Related
- 1996-11-11 AT AT96939044T patent/ATE191758T1/de not_active IP Right Cessation
- 1996-11-11 ES ES96939044T patent/ES2144787T3/es not_active Expired - Lifetime
-
2000
- 2000-05-26 GR GR20000401207T patent/GR3033516T3/el not_active IP Right Cessation
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Publication number | Publication date |
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EP0862667B1 (en) | 2000-04-12 |
CN1202210A (zh) | 1998-12-16 |
DE69607763T2 (de) | 2000-08-10 |
WO1997018364A3 (en) | 1997-08-28 |
CN1067449C (zh) | 2001-06-20 |
ITMI952353A1 (it) | 1997-05-16 |
EP0862667A2 (en) | 1998-09-09 |
ATE191758T1 (de) | 2000-04-15 |
WO1997018364A2 (en) | 1997-05-22 |
PL326667A1 (en) | 1998-10-12 |
PT862667E (pt) | 2000-07-31 |
PL182375B1 (en) | 2001-12-31 |
GR3033516T3 (en) | 2000-09-29 |
DE69607763D1 (de) | 2000-05-18 |
IT1280113B1 (it) | 1998-01-05 |
ES2144787T3 (es) | 2000-06-16 |
JP2000500084A (ja) | 2000-01-11 |
ITMI952353A0 (ja) | 1995-11-16 |
US6131351A (en) | 2000-10-17 |
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