WO2000043559A1 - Produit en alliage aluminium-silicium hypereutectique pour mise en forme a l'etat semi-solide - Google Patents
Produit en alliage aluminium-silicium hypereutectique pour mise en forme a l'etat semi-solide Download PDFInfo
- Publication number
- WO2000043559A1 WO2000043559A1 PCT/FR2000/000095 FR0000095W WO0043559A1 WO 2000043559 A1 WO2000043559 A1 WO 2000043559A1 FR 0000095 W FR0000095 W FR 0000095W WO 0043559 A1 WO0043559 A1 WO 0043559A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- eutectic
- silicon
- boron
- aluminum
- alloy
- Prior art date
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C21/00—Alloys based on aluminium
- C22C21/02—Alloys based on aluminium with silicon as the next major constituent
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C1/00—Making non-ferrous alloys
- C22C1/12—Making non-ferrous alloys by processing in a semi-solid state, e.g. holding the alloy in the solid-liquid phase
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C21/00—Alloys based on aluminium
- C22C21/02—Alloys based on aluminium with silicon as the next major constituent
- C22C21/04—Modified aluminium-silicon alloys
Definitions
- Hypereutectic aluminum-silicon alloy product for shaping in semi-solid state
- the invention relates to Al-Si alloy products, with possibly other addition elements, in which the silicon content is such that it is equal to or greater than the composition of the eutectic (11.7% in the case where there is no other element of addition).
- These products such as billets, then cut into pieces corresponding to the quantity of metal necessary for the part to be manufactured, or forging blanks, are intended to be reheated in the semi-solid state, that is to say say at a temperature between the solidus and the liquidus of the alloy, to be shaped, in particular by forging or injection under pressure.
- Aluminum-silicon alloys possibly comprising other addition elements such as copper, magnesium, manganese, zinc, nickel or cobalt, and in which the silicon content is equal to or greater than that of eutectics are used for the production of molded parts with low thermal expansion and good resistance to friction, for example pistons and liners of internal combustion engines, or parts of braking or clutch systems. on the other hand, are quite difficult to mold and to machine, and all the more so as the silicon content is high.
- the parts obtained show good metallurgical health, with no shrinkage and segregation and the process allows high rates well suited to large series in the automotive industry.
- Patent application JP 08-323461 (Asahi Tec) describes a process for forming a semi-solid state of a hypereutectic AlSi alloy, in which the shear intended to improve the rheology and the filling of the mold are concomitant, so that the incoming metal introduces stirring which leads to a thixotropic structure and reduces the segregation of the primary silicon crystals.
- the article by I. Diewwanit and MC Flemings "Semi-Solid Forming of Hypereutectic Al-Si Alloys" Light Metals 1996, The Minerais, Metals & Materials Society, pp.
- the Applicant has discovered that it is possible to obtain, for eutectic or hypereutectic AlSi alloys, rheological properties in the semi-solid state very favorable for shaping by thixoforming starting from a solid product having a particular solidification structure. , obtained in a simple way without mechanical or electromagnetic stirring.
- the subject of the invention is a product made of an eutectic or hypereutectic aluminum-silicon alloy suitable for thixoforming, comprising (by weight) from 10 to 30% of silicon and optionally copper ( ⁇ 10%), magnesium ( ⁇ 3%), manganese ( ⁇ 2%), iron ( ⁇ 2%), nickel ( ⁇ 4%), cobalt ( ⁇ 3%) and other elements ( ⁇ 0.5% each and 1% in total), whose microstructure in the raw casting state consists of primary silicon crystals, equiaxial type aluminum dendrites and less than 4 mm in size, and an eutectic consisting of eutectic silicon grains and eutectic aluminum less than 4 mm in size. It also relates to a process for obtaining this microstructure consisting in adding to the alloy from 50 to 2000 ppm (by weight) of boron, the amount added being in excess compared to that strictly necessary for the precipitation of impurities.
- the solidification structure of the hypereutectic AlSi alloys comprises: a) primary silicon particles, the size of which can be refined, in particular by adding 20 to 500 ppm of phosphorus, b ) aluminum dendrites formed at the start of the eutectic plateau, which often reach sizes greater than 5 mm, c) an eutectic consisting of eutectic silicon grains and eutectic aluminum grains and, where appropriate, of intermetallic phases making intervene the other alloying elements such as Cu, Mg or Ni.
- the size of the eutectic aluminum grains is correlated with that of the dendrites and substantially of the same value. Can reveal the presence and size of these grains * eutectic aluminum columnar appearance by etching the sample ferric chloride or three-acid.
- the Applicant has found that when either the aluminum dendrites or the eutectic aluminum grains have a columnar (or basaltic) shape and a size greater than 4 mm, the product reheated in the semi-solid state to 'at a liquid fraction rate of between 20 and 60% had a poorly globulated structure, the eutectic aluminum grains having an elongated shape leading to a rheology unfavorable for shaping under good conditions.
- the dendrites and the eutectic aluminum grains had an equiaxial type structure, with a size less than 4 mm, the structure of the product reheated in the semi-solid state is well globulated, which leads to a rheology favorable for easy shaping of the part to be produced and good metallurgical quality of this part.
- the structure according to the invention is found in the entire piece or blank to be heated. Indeed, if this structure only exists in one part, the heterogeneity of the structure leads to difficulties during shaping.
- An effective means of obtaining, in a reliable and repetitive manner, and without resorting to mechanical or electromagnetic stirring, the structure according to the invention is to add to the liquid metal intended to be cast in the form of a billet or a blank of 0.005 at 0.2%, and preferably from 0.01 to 0.05%, of boron. Boron is used in the usual way for the purification of aluminum, so as to precipitate impurities such as Ti, Zr, Mn or V in the form of intermetallic borides.
- Titanium and boron master alloys such as 1 ⁇ -T5B, are also usually used to refine the grain of the aluminum, by formation of TiB 2 particles; in these alloys the titanium is in excess relative to the stoichiometric quantity necessary for the formation of TiB and the total boron content does not exceed 50 ppm.
- the boron added according to the invention is in excess of at least 0.005% relative to the stoichiometric quantity strictly necessary for elimination of impurities in the form of intermetallic compounds.
- the addition of boron can be in the form of master alloys Al-B (for example the alloys A-B3 or A-B6). Si-B or Al-Si-B (e.g., the alloy A-S10B3). It can also be done in the form of a fluoborate flux.
- the products according to the invention can be used for all the usual applications of eutectic or hypereutectic alloys up to 30% of silicon, in particular parts subjected to wear-friction, such as drums and brake discs, cylinders or liners of engines. or compressors, pistons and gearbox forks.
- Alloys A-S17U4G containing (by weight) 17% Si, 4% Cu and 0.6% Mg were developed, with the addition of 100 ppm of phosphorus to refine the primary silicon grains.
- Alloy A contained no other addition alloy B was produced with the addition of 0.15% titanium and 0.3% AT5B, the master alloy with 5% titanium and 1% boron.
- Alloy C according to the invention was prepared with the addition of 0.03%> of boron. The metal was cast in the form of 75 mm diameter billets by semi-continuous casting under load, without mechanical or electromagnetic stirring.
- the examination of a section reveals a structure with dendrites and aluminum grains of equiaxial appearance, testifying to a homogeneous germination, of size between 0.2 and 2 mm. After reheating in the semi-solid state, the eutectic aluminum is perfectly globulated, and the rheology test is systematically good.
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Silicon Compounds (AREA)
- Crystals, And After-Treatments Of Crystals (AREA)
- Powder Metallurgy (AREA)
- Continuous Casting (AREA)
- Physical Deposition Of Substances That Are Components Of Semiconductor Devices (AREA)
- Forging (AREA)
- Manufacture Of Alloys Or Alloy Compounds (AREA)
- Soft Magnetic Materials (AREA)
Abstract
Description
Claims
Priority Applications (10)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CA002360673A CA2360673A1 (fr) | 1999-01-21 | 2000-01-18 | Produit en alliage aluminium-silicium hypereutectique pour mise en forme a l'etat semi-solide |
JP2000594965A JP2002535488A (ja) | 1999-01-21 | 2000-01-18 | 半固体状態での成形のための過共晶アルミニウム−珪素合金生成物 |
AU30556/00A AU3055600A (en) | 1999-01-21 | 2000-01-18 | Hypereutectic aluminium-silicon alloy product for semisolid forming |
EP00900600A EP1147237B1 (fr) | 1999-01-21 | 2000-01-18 | Produit en alliage aluminium-silicium hypereutectique pour mise en forme a l'etat semi-solide |
SK1000-2001A SK10002001A3 (sk) | 1999-01-21 | 2000-01-18 | Produkt z hypereutektickej hliníkovo-kremíkovej zliatiny na tvárnenie v polotuhom stave |
DE60004010T DE60004010D1 (de) | 1999-01-21 | 2000-01-18 | Produkt aus übereutektischer aluminum-silizium legierung zur verformung in halbfestem zustand |
PL00349340A PL349340A1 (en) | 1999-01-21 | 2000-01-18 | Hypereutectic aluminium-silicon alloy product for semisolid forming |
BR0007637-6A BR0007637A (pt) | 1999-01-21 | 2000-01-18 | Produto em liga de alumìnio-silìcio hipereutética para enformação no estado semi-sólido |
AT00900600T ATE245714T1 (de) | 1999-01-21 | 2000-01-18 | Produkt aus übereutektischer aluminum-silizium legierung zur verformung in halbfestem zustand |
NO20013576A NO20013576L (no) | 1999-01-21 | 2001-07-19 | Hypereutektisk aluminium-silisium-legeringsprodukt for halvfast forming |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR9900787A FR2788788B1 (fr) | 1999-01-21 | 1999-01-21 | Produit en alliage aluminium-silicium hypereutectique pour mise en forme a l'etat semi-solide |
FR99/00787 | 1999-01-21 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2000043559A1 true WO2000043559A1 (fr) | 2000-07-27 |
Family
ID=9541194
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/FR2000/000095 WO2000043559A1 (fr) | 1999-01-21 | 2000-01-18 | Produit en alliage aluminium-silicium hypereutectique pour mise en forme a l'etat semi-solide |
Country Status (14)
Country | Link |
---|---|
US (1) | US6200396B1 (fr) |
EP (1) | EP1147237B1 (fr) |
JP (1) | JP2002535488A (fr) |
AT (1) | ATE245714T1 (fr) |
AU (1) | AU3055600A (fr) |
BR (1) | BR0007637A (fr) |
CA (1) | CA2360673A1 (fr) |
CZ (1) | CZ20012658A3 (fr) |
DE (1) | DE60004010D1 (fr) |
FR (1) | FR2788788B1 (fr) |
NO (1) | NO20013576L (fr) |
PL (1) | PL349340A1 (fr) |
SK (1) | SK10002001A3 (fr) |
WO (1) | WO2000043559A1 (fr) |
Families Citing this family (21)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP3003031B1 (ja) * | 1998-08-25 | 2000-01-24 | 株式会社戸塚天竜製作所 | Al−Si合金の溶湯の初晶Siを微細化する方法 |
US20040055724A1 (en) * | 2002-09-20 | 2004-03-25 | Spx Corporation | Semi-solid metal casting process and product |
US7100669B1 (en) * | 2003-04-09 | 2006-09-05 | Brunswick Corporation | Aluminum-silicon casting alloy having refined primary silicon due to pressure |
US6994147B2 (en) * | 2003-07-15 | 2006-02-07 | Spx Corporation | Semi-solid metal casting process of hypereutectic aluminum alloys |
US20050103461A1 (en) * | 2003-11-19 | 2005-05-19 | Tht Presses, Inc. | Process for generating a semi-solid slurry |
CN100338248C (zh) * | 2003-11-20 | 2007-09-19 | 北京有色金属研究总院 | 一种Al-Mg-Si系合金半固态坯料的制备方法及其半固态坯料 |
JP4665413B2 (ja) * | 2004-03-23 | 2011-04-06 | 日本軽金属株式会社 | 高剛性・低線膨張率を有する鋳造用アルミニウム合金 |
GB0514751D0 (en) | 2005-07-19 | 2005-08-24 | Holset Engineering Co | Method and apparatus for manufacturing turbine or compressor wheels |
CN100348761C (zh) * | 2006-02-17 | 2007-11-14 | 刘相法 | 一种P-Si中间合金及其制备方法 |
RU2496604C2 (ru) | 2008-09-17 | 2013-10-27 | Кул Полимерз, Инк. | Инжекционное формование металлов с многокомпонентным составом |
JP5655953B2 (ja) * | 2011-10-11 | 2015-01-21 | 日本軽金属株式会社 | Al−Fe−Si系化合物及び初晶Siを微細化させたアルミニウム合金の製造方法 |
CN102965551A (zh) * | 2012-11-26 | 2013-03-13 | 中国铝业股份有限公司 | 一种过共晶铝硅合金及其制备方法 |
JP6011998B2 (ja) * | 2012-12-25 | 2016-10-25 | 日本軽金属株式会社 | Al−Fe−Si系化合物を微細化させたアルミニウム合金の製造方法 |
CN103934437B (zh) * | 2014-04-01 | 2017-02-08 | 上海交通大学 | 初生硅细化的高硅铝合金流变浆料的制备方法 |
EP3237647B1 (fr) * | 2014-12-23 | 2018-09-26 | Hydro Aluminium Rolled Products GmbH | Alliage de brasage à base d'aluminium dépourvu de particules de si primaires et son procédé de production |
EP3334850A4 (fr) | 2015-08-13 | 2019-03-13 | Alcoa USA Corp. | Alliages de moulage d'aluminium 3xx améliorés, et leurs procédés de fabrication |
CN109913675B (zh) * | 2019-03-25 | 2020-10-09 | 常州大学 | 一种用于共晶铝硅合金的Al-B-P双重变质剂及其制备方法和应用 |
CN109881055B (zh) * | 2019-03-25 | 2021-06-22 | 常州大学 | 一种共晶铝硅合金一步法磷硼双重变质方法 |
CN110724858A (zh) * | 2019-10-24 | 2020-01-24 | 成都先进金属材料产业技术研究院有限公司 | 过共晶铝硅合金半固态浆料或坯料的制备方法 |
CN111647782A (zh) * | 2020-06-19 | 2020-09-11 | 山东省科学院新材料研究所 | 一种再生铝合金及其制备方法 |
WO2024048895A1 (fr) * | 2022-09-01 | 2024-03-07 | 한국재료연구원 | Matériau de coulée en alliage d'aluminium et disque de frein comprenant celui-ci |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5009844A (en) * | 1989-12-01 | 1991-04-23 | General Motors Corporation | Process for manufacturing spheroidal hypoeutectic aluminum alloy |
EP0572683A1 (fr) * | 1992-01-13 | 1993-12-08 | Honda Giken Kogyo Kabushiki Kaisha | Procede de moulage de pieces en alliage d'aluminium et pieces ainsi produites |
JPH08323461A (ja) * | 1995-06-02 | 1996-12-10 | Asahi Tec Corp | Al−Si系過共晶合金製成形品の製造方法 |
US5701942A (en) * | 1994-09-09 | 1997-12-30 | Ube Industries, Ltd. | Semi-solid metal processing method and a process for casting alloy billets suitable for that processing method |
Family Cites Families (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4681736A (en) * | 1984-12-07 | 1987-07-21 | Aluminum Company Of America | Aluminum alloy |
US5217546A (en) * | 1988-02-10 | 1993-06-08 | Comalco Aluminum Limited | Cast aluminium alloys and method |
NO174165C (no) * | 1992-01-08 | 1994-03-23 | Elkem Aluminium | Fremgangsmåte ved kornforfining av aluminium samt kornforfiningslegering for utförelse av fremgangsmåten |
ATE152378T1 (de) * | 1992-01-30 | 1997-05-15 | Efu Ges Fuer Ur Umformtechnik | Verfahren zur herstellung von formteilen aus metallegierungen |
US5968292A (en) * | 1995-04-14 | 1999-10-19 | Northwest Aluminum | Casting thermal transforming and semi-solid forming aluminum alloys |
IT1278230B1 (it) * | 1995-05-31 | 1997-11-17 | Reynolds Wheels Spa | Metodo per portare masselli in lega di alluminio quali lingotti, billette e simili allo stato semisolido-semiliquido atto a consentire |
FR2746414B1 (fr) * | 1996-03-20 | 1998-04-30 | Pechiney Aluminium | Alliage thixotrope aluminium-silicium-cuivre pour mise en forme a l'etat semi-solide |
-
1999
- 1999-01-21 FR FR9900787A patent/FR2788788B1/fr not_active Expired - Fee Related
- 1999-12-07 US US09/455,766 patent/US6200396B1/en not_active Expired - Fee Related
-
2000
- 2000-01-18 CA CA002360673A patent/CA2360673A1/fr not_active Abandoned
- 2000-01-18 JP JP2000594965A patent/JP2002535488A/ja active Pending
- 2000-01-18 BR BR0007637-6A patent/BR0007637A/pt not_active Application Discontinuation
- 2000-01-18 CZ CZ20012658A patent/CZ20012658A3/cs unknown
- 2000-01-18 PL PL00349340A patent/PL349340A1/xx unknown
- 2000-01-18 SK SK1000-2001A patent/SK10002001A3/sk unknown
- 2000-01-18 EP EP00900600A patent/EP1147237B1/fr not_active Expired - Lifetime
- 2000-01-18 AU AU30556/00A patent/AU3055600A/en not_active Abandoned
- 2000-01-18 DE DE60004010T patent/DE60004010D1/de not_active Expired - Lifetime
- 2000-01-18 WO PCT/FR2000/000095 patent/WO2000043559A1/fr active IP Right Grant
- 2000-01-18 AT AT00900600T patent/ATE245714T1/de not_active IP Right Cessation
-
2001
- 2001-07-19 NO NO20013576A patent/NO20013576L/no not_active Application Discontinuation
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5009844A (en) * | 1989-12-01 | 1991-04-23 | General Motors Corporation | Process for manufacturing spheroidal hypoeutectic aluminum alloy |
EP0572683A1 (fr) * | 1992-01-13 | 1993-12-08 | Honda Giken Kogyo Kabushiki Kaisha | Procede de moulage de pieces en alliage d'aluminium et pieces ainsi produites |
US5701942A (en) * | 1994-09-09 | 1997-12-30 | Ube Industries, Ltd. | Semi-solid metal processing method and a process for casting alloy billets suitable for that processing method |
JPH08323461A (ja) * | 1995-06-02 | 1996-12-10 | Asahi Tec Corp | Al−Si系過共晶合金製成形品の製造方法 |
Non-Patent Citations (2)
Title |
---|
KAHLEN L ET AL: "SEMI-SOLID PROCESSING OF HYPEREUTECTIC AL/SI ALLOYS", INTERNATIONAL CONFERENCE ON ALUMINUM ALLOYS, VOL. 1, PAGE(S) 83 - 90, XP000607979 * |
PATENT ABSTRACTS OF JAPAN vol. 097, no. 004 30 April 1997 (1997-04-30) * |
Also Published As
Publication number | Publication date |
---|---|
BR0007637A (pt) | 2001-11-06 |
CA2360673A1 (fr) | 2000-07-27 |
SK10002001A3 (sk) | 2002-02-05 |
CZ20012658A3 (cs) | 2002-08-14 |
US6200396B1 (en) | 2001-03-13 |
DE60004010D1 (de) | 2003-08-28 |
FR2788788A1 (fr) | 2000-07-28 |
EP1147237B1 (fr) | 2003-07-23 |
PL349340A1 (en) | 2002-07-15 |
NO20013576D0 (no) | 2001-07-19 |
JP2002535488A (ja) | 2002-10-22 |
FR2788788B1 (fr) | 2002-02-15 |
NO20013576L (no) | 2001-09-14 |
ATE245714T1 (de) | 2003-08-15 |
AU3055600A (en) | 2000-08-07 |
EP1147237A1 (fr) | 2001-10-24 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
EP1147237B1 (fr) | Produit en alliage aluminium-silicium hypereutectique pour mise en forme a l'etat semi-solide | |
JP4765400B2 (ja) | セミソリッド鋳造用アルミニウム合金、並びにアルミ合金鋳物とその製造方法 | |
JP2005264301A (ja) | 鋳造アルミニウム合金とアルミニウム合金鋳物およびその製造方法 | |
FR2573777A1 (fr) | Alliage d'aluminium resistant a la chaleur, a haute resistance, et procede pour fabriquer un element porteur constitue de cet alliage | |
JP2010528187A (ja) | 熱間割れ感受性を減じるためのアルミニウム合金配合物 | |
FR2954355A1 (fr) | Piece moulee en alliage d'aluminium au cuivre a haute resistance mecanique et au fluage a chaud | |
JP5691477B2 (ja) | Al−Si系合金及びその製造方法 | |
CN114231802A (zh) | 锻造铝合金轮毂用稀土铝合金棒材及其制备方法 | |
WO2006056686A2 (fr) | Alliage d’aluminium pour piece a haute resistance mecanique a chaud | |
JP4511156B2 (ja) | アルミニウム合金の製造方法と、これにより製造されるアルミニウム合金、棒状材、摺動部品、鍛造成形品および機械加工成形品 | |
FR2805828A1 (fr) | Alliage a base d'aluminium contenant du bore et son procede de fabrication | |
FR2808536A1 (fr) | Procede de production d'une billette semi-fondue en alliage d'aluminium pour une utilisation comme unite de transport | |
JP2004256873A (ja) | 高温強度に優れた鋳物用アルミニウム合金 | |
JPH0762200B2 (ja) | 鍛造用耐摩耗性アルミニウム合金鋳造棒及びその製造法 | |
CN104278181A (zh) | 一种准晶相增强的Mg-Al-Mn-Zn-Y镁合金 | |
JP7096690B2 (ja) | ダイカスト鋳造用アルミニウム合金およびアルミニウム合金鋳物 | |
JPH0635624B2 (ja) | 高強度アルミニウム合金押出材の製造法 | |
JPH02149631A (ja) | 耐摩耗性及び熱伝導性に優れた低熱膨張アルミニウム合金 | |
JPH11152552A (ja) | Al−Zn−Si系合金の加工方法 | |
JP4544507B2 (ja) | Al−Si共晶合金、Al合金製鋳物、鋳造用Al合金およびそれらの製造方法 | |
JPS61259829A (ja) | 耐摩耗性アルミニウム合金押出材の製造法 | |
JPH0340647B2 (fr) | ||
JPH0480108B2 (fr) | ||
JP3949557B2 (ja) | 鋳造用耐摩耗性アルミニウム合金および同アルミニウム合金鋳物 | |
EP0064468B1 (fr) | Procédé de fabrication de feuilles en alliages d'aluminium-fer hypoeutectiques |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
AK | Designated states |
Kind code of ref document: A1 Designated state(s): AE AL AM AT AU AZ BA BB BG BR BY CA CH CN CR CU CZ DE DK DM EE ES FI GB GD GE GH GM HR HU ID IL IN IS JP KE KG KP KR KZ LC LK LR LS LT LU LV MA MD MG MK MN MW MX NO NZ PL PT RO RU SD SE SG SI SK SL TJ TM TR TT TZ UA UG UZ VN YU ZA ZW |
|
AL | Designated countries for regional patents |
Kind code of ref document: A1 Designated state(s): GH GM KE LS MW SD SL SZ TZ UG ZW AM AZ BY KG KZ MD RU TJ TM AT BE CH CY DE DK ES FI FR GB GR IE IT LU MC NL PT SE BF BJ CF CG CI CM GA GN GW ML MR NE SN TD TG |
|
121 | Ep: the epo has been informed by wipo that ep was designated in this application | ||
DFPE | Request for preliminary examination filed prior to expiration of 19th month from priority date (pct application filed before 20040101) | ||
WWE | Wipo information: entry into national phase |
Ref document number: 30556/00 Country of ref document: AU |
|
WWE | Wipo information: entry into national phase |
Ref document number: 2000900600 Country of ref document: EP |
|
WWE | Wipo information: entry into national phase |
Ref document number: 10002001 Country of ref document: SK |
|
ENP | Entry into the national phase |
Ref document number: 2000 594965 Country of ref document: JP Kind code of ref document: A |
|
ENP | Entry into the national phase |
Ref document number: 2360673 Country of ref document: CA Kind code of ref document: A Ref document number: 2360673 Country of ref document: CA |
|
WWE | Wipo information: entry into national phase |
Ref document number: PV2001-2658 Country of ref document: CZ |
|
WWP | Wipo information: published in national office |
Ref document number: 2000900600 Country of ref document: EP |
|
REG | Reference to national code |
Ref country code: DE Ref legal event code: 8642 |
|
WWP | Wipo information: published in national office |
Ref document number: PV2001-2658 Country of ref document: CZ |
|
WWR | Wipo information: refused in national office |
Ref document number: PV2001-2658 Country of ref document: CZ |
|
WWG | Wipo information: grant in national office |
Ref document number: 2000900600 Country of ref document: EP |