WO2000002838A1 - PROCEDE DE PREPARATION DE SELS DE COMPOSES β-DICETO DE METAUX ALCALINO-TERREUX - Google Patents
PROCEDE DE PREPARATION DE SELS DE COMPOSES β-DICETO DE METAUX ALCALINO-TERREUX Download PDFInfo
- Publication number
- WO2000002838A1 WO2000002838A1 PCT/JP1999/003653 JP9903653W WO0002838A1 WO 2000002838 A1 WO2000002838 A1 WO 2000002838A1 JP 9903653 W JP9903653 W JP 9903653W WO 0002838 A1 WO0002838 A1 WO 0002838A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- compound
- earth metal
- alkaline earth
- diketo
- aliphatic
- Prior art date
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Classifications
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C45/00—Preparation of compounds having >C = O groups bound only to carbon or hydrogen atoms; Preparation of chelates of such compounds
- C07C45/77—Preparation of chelates of aldehydes or ketones
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C49/00—Ketones; Ketenes; Dimeric ketenes; Ketonic chelates
- C07C49/92—Ketonic chelates
Definitions
- the present invention relates to an alkaline earth metal salt of a jS-diketo compound used as a resin molding aid, and a method for producing the same.
- 3-Diketo compound alkaline earth metal salts (hereinafter referred to as] 3-diketo compound salts) are used as non-toxic stabilizers for resin molding aids, especially when molding pinyl chloride resins.
- 3-diketo compound salts For example, Zh. Neorg. Khim. (1990), 35 (11), 2776-80 There is disclosed a method for obtaining a salt of a 3-diketo compound by reacting acetylacetone with calcium chloride or calcium nitrate.
- impurities such as chlorides and nitrates are mixed in the obtained 3-diketo compound salt (acetylacetate), and it is necessary to remove the impurities, which is disadvantageous in quality.
- Japanese Examined Patent Publication No. 60-224777 discloses that a ⁇ -diketo compound (acetylacetone) is prepared by using an equivalent (2 mol) of a (3—diketo compound) per mole of an alkaline earth metal hydroxide.
- Etc. describe a method for producing a 3-diketo compound salt in which an alkaline earth metal hydroxide is added, but this method increases the viscosity in the latter half of the reaction and increases the power load on the stirrer. For this reason, an expensive reactor is required, which is industrially disadvantageous, and about 6 to 7% by weight of water (corresponding to one molecule as water of crystallization) is contained in the obtained / 3-diketo compound salt.
- the salt of the 3-diketo compound obtained by the method of this document has low stability and cannot be stored for a long period of time.
- the calcium salt of acetylaceton obtained by this method is dried to a water content of 1% by weight or less, the purity is greatly reduced from 97% by weight to 86% by weight in one month.
- German Patent DE 966-1960 31 0 uses an equivalent (2 mol) of a ⁇ -diketo compound to 1 mol of an alkaline earth metal hydroxide, A monodiketo compound (such as acetylacetone) is added to an alkaline earth metal hydroxide in the absence; a method for producing a 3-diketo compound salt is described.
- a 13-diketo compound is added to an alkaline earth metal hydroxide and reacted at a temperature of 40 or less to prevent the reaction mixture from becoming B-viscosified. It can be made to react in the state of.
- an object of the present invention is to provide a high-quality and stable monodiketo compound salt and a method for producing the same.
- Another object of the present invention is to provide a method for industrially and advantageously producing a high-purity diketo compound salt at a high conversion rate while suppressing the increase in viscosity and reacting in a powdery form. It is in.
- Still another object of the present invention is to provide a method capable of effectively producing a / 3-diketo compound salt in a short time without lowering the conversion and purity. Disclosure of the invention
- the present inventors have developed unreacted alkaline earth metals such as calcium hydroxide. It has been found that if the hydrostatic hydroxide remains, the purity of the ⁇ -diketo compound salt is greatly reduced during storage, probably due to the condensation of the acetyl-acetone unit of the ⁇ -diketo compound salt. The present inventors have made intensive studies based on these findings to achieve the above object, and as a result, when an excess amount of an aliphatic-diketo compound is used relative to an alkali-class metal compound, a 0-diketo compound obtained is obtained. The present inventors have found that the salt is highly pure and has a low stability, and thus completed the present invention.
- the present invention relates to a method for producing an alkaline earth metal salt of a ⁇ -diketo compound from a granular alkaline earth metal compound and an aliphatic ⁇ -diketo compound, wherein 1 mol of the alkaline earth metal compound is used.
- the aliphatic / 3-diketo compound is used in an amount of 2.04 mol or more with respect to the total amount.
- the alkaline earth gold compound and the aliphatic diketo compound may be reacted while being supplied continuously or intermittently.
- the alkaline earth metal compound and the aliphatic) 3-diketo compound are one of the components. On the other hand, the other component may be added continuously or intermittently.
- the total amount of the components used may be within the above-mentioned range, and need not be within the above-mentioned range in the reaction or the supply process.
- the maximum temperature of the reaction may be 50 or more, and the drying may be performed under an inert gas atmosphere.
- the temperature may be 100 to 180 t :.
- the alkaline earth metal compound may be calcium hydroxide, magnesium hydroxide or barium hydroxide.
- the aliphatic 3-diketo compound has the following formula (1)
- R 1 and R 2 are the same or different and each represent a hydrogen atom, a 6 alkyl group, or an alkoxy group
- the alkaline earth metal salt of the i3-diketo compound of the present invention can be obtained by the above method.
- the alkaline earth metal salt of ⁇ -diketo compound has a water content of 1% by weight or less and a purity of 98.0% by weight or more.
- alkaline earth chain gold bending compounds examples include hydroxides of alkaline earth metals (eg, magnesium hydroxide, calcium hydroxide, barium hydroxide) and the like. These alkaline earth metal compounds can be used alone or in combination of two or more.
- the alkaline earth metal compound can be used in the form of a powder.
- the alkaline earth metal compound may be used as it is commercially available for industrial use, and the alkaline earth metal compound may have an average particle size of about 0.1 to 300 m, preferably The diameter is about 0.1 to 150.
- the alkaline earth metal compound preferably contains almost no impurities (silica, alumina, alkaline earth metal carbonate, etc.).
- the content of the impurities is, for example, not more than double arat%, preferably not more than 0.5 wt%, more preferably not more than 0.5 wt%.
- R 1 and R 2 are the same or different and are each independently a hydrogen atom, a Cs s alkyl group (for example, a C 4 alkyl group such as a methyl group or an ethyl group) or a 10 alkoxy group (for example, , main butoxy group, an ethoxy group, a propoxy group, a C! _ 6 ⁇ alkoxy group) such as butoxy, for example, 2, compounds having a 4-alkanedioic structure, or Aseto acid ester structure can be exemplified.
- a Cs s alkyl group for example, a C 4 alkyl group such as a methyl group or an ethyl group
- a 10 alkoxy group for example, main butoxy group, an ethoxy group, a propoxy group, a C! _ 6 ⁇ alkoxy group
- butoxy for example, 2, compounds having a 4-alkanedioic structure, or Aseto acid ester structure
- Preferred aliphatic monodiketo compounds include, in the above formula (1), R 1 is an alkyl group (eg, methyl group, ethyl group) and R 2 is
- R 1 and R 2 may represent different C 4 alkyl groups.
- Particularly preferred aliphatic / 3-diketo compounds include acetylacetone, acetylacetoacetate 4- alkyl esters (eg, methyl acetoacetate, ethyl acetoacetate).
- aliphatic 3-diketo compound those commercially available for industrial use can be used as they are.
- a ⁇ -diketo compound salt having high purity and high stability can be obtained irrespective of the reaction method by using an excess amount of an aliphatic) 3-diketo compound with respect to an alkaline earth metal.
- the aliphatic 3-diketo compound is used in an amount of 2.04 times or more, for example, about 2.04 to 5 mol per mol of the alkaline earth metal compound (for example, about 2.0 to 5 mol) (for example, about 2.0 mol).
- About 5 to 4.5 mol preferably about 2.1 to 4 mol (for example, about 2.1 to 3 mol), more preferably about 2.2 to 2.8 mol (particularly 2.2 to 2.2 mol).
- the residual amount of the alkaline earth metal compound can be significantly reduced, and the purity and stability of the ⁇ -diketo compound salt can be improved. If the amount of the aliphatic 3-diketo compound used is too large, the viscosity of the reaction mixture becomes large (kneaded) near the end of the reaction, and stirring becomes difficult.
- the alkaline earth metal compound and the 3-diketo compound are reacted with each other while maintaining the fluidity of the powdery granules: i can form a 3-diketo compound salt. .
- the reaction between the alkaline earth metal compound and the / 3-diketo compound can be carried out by continuously or intermittently supplying the alkaline earth metal compound and the aliphatic 3-diketo compound to the reactor.
- an addition device quantitative supply device
- the reaction can be carried out by supplying the mixture to a reactor capable of mixing and stirring (for example, a stirring and mixing device for powder such as a kneader, a channel dryer, a lip blender, etc.).
- the respective components may be supplied to the reactor in the proportions described above.
- the ratio of each component at the end of the supply (the ratio of the total used amount of each component) may be within the above range.
- the reaction may be performed by continuously or intermittently adding one of the alkaline earth metal compound and the aliphatic ⁇ -diketo compound to the other component. It is possible to produce a highly stable and highly stable 3-diketo compound salt by continuously or intermittently adding an alkaline earth metal compound to the 3-diketo compound. Viscosity may increase. Therefore, it is advantageous to react the alkaline earth metal compound by continuously or intermittently adding the aliphatic monodiketo compound.
- the method of adding the aliphatic / 3-diketo compound has the advantage that the powder state of the mixture can be maintained in all steps from the reaction to the drying.
- a stirrable / mixable reactor e.g., an apparatus having a mixing ability such as a powder mixer, a groove type drier, a repump blender, etc.
- the ratio of each component at the end of the addition is within the above range.
- the reaction between the alkaline earth metal compound and the aliphatic / 3-diketo compound is a heat-generating reaction.
- the heat of reaction is removed by cooling (jacket cooling, etc.), and the reaction is performed while controlling the reaction temperature.
- Reaction temperature Is, for example, about 0 to 100 °, preferably about 30 to 100 ° C., and more preferably about 60 to 80 °. If the reaction temperature exceeds 100, the conversion of the alkaline earth metal compound becomes low due to the loss of the aliphatic diketone compound, and the quality (color, purity, and stability) of the obtained 0-diketo compound salt is reduced. ).
- the maximum temperature during the reaction is 0.5 or more (for example, 50 to: about 100), 55 ⁇ or more (for example, about 55 to 95, particularly 55 to 80). It is preferable to control When the maximum temperature during the reaction is 50 or higher, the conversion of the alkaline earth metal compound can be improved, and the purity and stability of the obtained salt of the / 3-diketo compound can be improved.
- the reaction can be performed in a batch, semi-batch or continuous manner.
- the reaction mixture obtained by the batch system or the semi-batch system may be aged as necessary. Aging can further increase the conversion of alkaline earth metal compounds.
- the aging temperature is, for example, about 40 to 100, preferably about 50 to 90, and more preferably about 60 to 800. If the ripening temperature is higher at 100, the quality (color, purity, stability, etc.) of the obtained 3 / 3-diketo compound salt decreases due to loss of the aliphatic 0-diketo compound.
- the aging time can be selected appropriately, and is usually about 1 hour or more, preferably about 1 to 24 hours (eg, 1 to 16 hours), more preferably about 4 to 12 hours, and about 2 to 8 hours. There may be.
- the reaction mixture usually contains reaction by-product water (for example, 2 moles of water is by-produced per mole of slaked lime) and water of crystallization.
- the 3-diketo compound salt can be obtained by drying the reaction mixture directly or after completion of ripening and removing the reaction by-product water and water of crystallization. Drying can be performed in an atmosphere of an inert gas (nitrogen, helium, carbon dioxide, etc.), preferably in an inert gas stream (for example, while blowing the inert gas into the reactor).
- an inert gas nitrogen, helium, carbon dioxide, etc.
- the product is colored by the oxidation-condensation of the 0-diketo compound.
- the drying temperature (for example, when the temperature is raised, the final temperature of drying) is usually about 100 to: L80 ", preferably about 100 to 150 (for example, 120 to 150). If the drying temperature is lower than 100, it is difficult to remove the water of crystallization, and the drying temperature should be within a range that does not decompose the -3-diketo compound salt.
- the selection may be made according to the type of the diketo compound salt.Table 1 shows preferred drying temperatures of typical / 3-diketo compound salts.
- the excess of the aliphatic 3-diketo compound can be removed from the salt of the diketo compound.
- the removed aliphatic / 3-diketo compound can be condensed and collected together with the by-product water with a condenser or the like, and used again for the reaction with the alkaline earth gold compound.
- the drying may be performed in the reactor, and may be performed separately in a batch system, a semi-patch system, or a continuous system.
- the powdered alkaline earth metal compound and the diketo compound it is preferable to continuously supply and dry the powdered alkaline earth metal compound and the diketo compound.
- Alkaline earth metal (3) -diketo compound is used in excess with respect to the compound.
- the / 3-diketo compound salt can be industrially and advantageously obtained in a short time without deteriorating the quality of the 0-diketo compound salt, and is economically advantageous. . Aging may be performed if necessary.
- a high purity] 3-diketo compound salt is obtained in order to obtain a salt.
- the aliphatic / 3-diketo compound is used in an amount of 2.1 to 3 moles per 1 mole of the earth metal compound, aged if necessary, and dried at a temperature of 100 to 150 in an inert gas atmosphere. Is preferred.
- the salt of the / 3-diketo compound thus obtained has a high purity, usually at least 98.0% by weight.
- the water content is 1% by weight or less, preferably 0.8% by weight or less, more preferably 0.5% by weight or less, and usually about 0.1 to 0.8% by weight (particularly, 0.1 to 0.5 weight).
- the content of impurities is 2% by weight or less, preferably 1.8% by weight or less, more preferably 1.5% by weight or less, and is usually about 0.1 to 1.8% by weight (particularly 0.1% by weight). About 1 to 1.5% by weight). Since the content of impurities is small, the 3-diketo compound salt of the present invention has high stability. Industrial applicability
- the present invention it is possible to reduce the content of alkaline earth gold in the ⁇ -diketo compound salt, and thus to obtain a high-quality and stable ⁇ -diketo compound salt.
- a high conversion mono-diketo compound salt with high purity can be industrially advantageously produced.
- the salt of the / 3-diketo compound of the present invention can be used as a stabilizer for vinyl chloride resin. Especially since the water content is small, It can be used as a low foaming stabilizer. In addition, because of its high stability, it can be used stably for a long period of time.
- the distillate from the drying was separated into two layers, and 232 g of acetylacetone containing 5.3 weight% of water was recovered from the upper layer.
- the distillate from the drying was separated into two layers, and 11 g of acetylethylacetone containing 5.1% by weight of water was recovered from the upper polishing.
- the distillate from the drying unit condensed in the condenser was 19.0 kg (upper solution 20.8 kg, lower solution 8.2 kg), the upper solution was 94.5% by weight acetylacetone, It contained 5.2% by weight of water.
- the acetylacetone calcium obtained in Examples 1, 5, and 6 and Comparative Examples 1 to 4 were sealed in a container, and stored at a temperature of 25 ⁇ 1 and a humidity of 75 ⁇ 2% to examine the stability. . Stability was evaluated by the change over time of the purity of acetylaceton (from the start of sealing to after 12 months). Table 2 shows the results.
- the distillate from the drying device condensed in the condenser was 18.4 kg (without layer separation) and contained 62.8% by weight of methyl acetate acetate and 36.6% by weight of water.
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- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Description
Claims
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP99926962A EP1044953A4 (en) | 1998-07-10 | 1999-07-06 | PROCESS FOR THE PREPARATION OF SALTS OF BETA-DICETO COMPOUNDS FROM ALKALINE EARTH METALS |
US09/508,459 US6376719B1 (en) | 1998-07-10 | 1999-07-06 | Process for the preparation of alkaline earth metal salts of β-diketo compounds |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP10196247A JP2000026362A (ja) | 1998-07-10 | 1998-07-10 | β−ジケト化合物のアルカリ土類金属塩の製造方法 |
JP10/196247 | 1998-07-10 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2000002838A1 true WO2000002838A1 (fr) | 2000-01-20 |
Family
ID=16354642
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP1999/003653 WO2000002838A1 (fr) | 1998-07-10 | 1999-07-06 | PROCEDE DE PREPARATION DE SELS DE COMPOSES β-DICETO DE METAUX ALCALINO-TERREUX |
Country Status (4)
Country | Link |
---|---|
US (1) | US6376719B1 (ja) |
EP (1) | EP1044953A4 (ja) |
JP (1) | JP2000026362A (ja) |
WO (1) | WO2000002838A1 (ja) |
Families Citing this family (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6376619B1 (en) * | 1998-04-13 | 2002-04-23 | 3M Innovative Properties Company | High density, miniaturized arrays and methods of manufacturing same |
US6482638B1 (en) * | 1999-12-09 | 2002-11-19 | 3M Innovative Properties Company | Heat-relaxable substrates and arrays |
AU2002368493A1 (en) * | 2002-12-23 | 2004-07-14 | Council Of Scientific And Industrial Research | Process for the preparation of metal acetylacetonates |
WO2004056737A1 (en) | 2002-12-23 | 2004-07-08 | Council Of Scientific And Industrial Research | Process for the preparation of metal acetylacetonates |
CN102659550A (zh) * | 2012-05-22 | 2012-09-12 | 扬州工业职业技术学院 | 一种乙酰丙酮铍的生产方法 |
CN103086857B (zh) * | 2013-01-11 | 2015-07-08 | 浙江传化华洋化工有限公司 | Pvc热稳定剂用高白度乙酰丙酮钙的制备方法 |
WO2016015616A1 (zh) * | 2014-07-28 | 2016-02-04 | 天津合智化工有限责任公司 | 一种β‐酮基酯络合物及其应用 |
FR3081868B1 (fr) | 2018-06-05 | 2020-11-06 | Michelin & Cie | Procede de preparation de l'acetylacetonate d'un element chimique hydrate ou anhydre |
CN110105184B (zh) * | 2019-06-13 | 2021-08-03 | 深圳市志海实业股份有限公司 | 一种常压下干法合成乙酰丙酮锌的方法 |
CN113816842B (zh) * | 2021-10-11 | 2022-04-12 | 山东键兴新材料科技有限公司 | 一种乙酰丙酮钙、制备方法及其应用 |
Citations (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS52136131A (en) * | 1976-05-12 | 1977-11-14 | Ohara Yakuhin Kougiyou Kk | Preparation of alkaline earth metal salts of aliphatic betaaketo compounds |
JPS59139339A (ja) * | 1983-01-15 | 1984-08-10 | メルク・パテント・ゲゼルシヤフト・ミツト・ベシユレンクテル・ハフツング | 無水フツ素含有1,3−ジケトネ−ト−金属錯化合物の製造方法 |
JPH032138A (ja) * | 1989-05-30 | 1991-01-08 | Nippon Telegr & Teleph Corp <Ntt> | 高純度Baβ―ジケトン錯体の製造方法 |
JPH04134044A (ja) * | 1990-09-25 | 1992-05-07 | Tosoh Akzo Corp | 薄膜形成用金属錯体 |
JPH059608A (ja) * | 1991-06-07 | 1993-01-19 | Dowa Mining Co Ltd | 1,3−ジケトン系有機金属錯体の製造法 |
JPH05239066A (ja) * | 1991-03-18 | 1993-09-17 | Solvay Barium Strontium Gmbh | 蒸着可能な化合物、mocvd法の際に使用するための混合物、蒸着可能な化合物の製造法およびアルカリ土類金属を含有する層の析出法 |
JPH05239067A (ja) * | 1992-02-28 | 1993-09-17 | Nippon Telegr & Teleph Corp <Ntt> | 高純度Baβ−ジケトン錯体の製造方法 |
JPH05255855A (ja) * | 1992-03-13 | 1993-10-05 | Nippon Sanso Kk | アルカリ土類金属の高純度β−ジケトネート錯体およびその製法 |
Family Cites Families (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3474464A (en) * | 1967-08-03 | 1969-10-21 | Grace W R & Co | Process for preparing acetylacetonates |
DE1960320C3 (de) | 1968-12-03 | 1973-11-08 | Czeskoslovenska Akademie Ved., Prag | Reduzierventil mit Ejektor |
JPH02136131A (ja) | 1988-11-17 | 1990-05-24 | Olympus Optical Co Ltd | 超音波探触子 |
JPH0624777B2 (ja) | 1989-10-31 | 1994-04-06 | 積水化成品工業株式会社 | 発泡樹脂製カップの二次成形方法および二次成形装置 |
JP3462643B2 (ja) | 1995-11-16 | 2003-11-05 | 大日本スクリーン製造株式会社 | 基板端縁処理装置 |
DE19610320C2 (de) * | 1996-03-15 | 1998-01-22 | Henkel Kgaa | Verfahren zur Herstellung von Erdalkalimetallsalzen aliphatischer beta-Ketoverbindungen |
FR2775971B1 (fr) * | 1998-03-12 | 2000-04-07 | Rhodia Chimie Sa | Preparation de sels metalliques de composes de type beta-dicarbonyles, a partir des oxydes metalliques |
-
1998
- 1998-07-10 JP JP10196247A patent/JP2000026362A/ja active Pending
-
1999
- 1999-07-06 US US09/508,459 patent/US6376719B1/en not_active Expired - Fee Related
- 1999-07-06 EP EP99926962A patent/EP1044953A4/en not_active Withdrawn
- 1999-07-06 WO PCT/JP1999/003653 patent/WO2000002838A1/ja not_active Application Discontinuation
Patent Citations (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS52136131A (en) * | 1976-05-12 | 1977-11-14 | Ohara Yakuhin Kougiyou Kk | Preparation of alkaline earth metal salts of aliphatic betaaketo compounds |
JPS59139339A (ja) * | 1983-01-15 | 1984-08-10 | メルク・パテント・ゲゼルシヤフト・ミツト・ベシユレンクテル・ハフツング | 無水フツ素含有1,3−ジケトネ−ト−金属錯化合物の製造方法 |
JPH032138A (ja) * | 1989-05-30 | 1991-01-08 | Nippon Telegr & Teleph Corp <Ntt> | 高純度Baβ―ジケトン錯体の製造方法 |
JPH04134044A (ja) * | 1990-09-25 | 1992-05-07 | Tosoh Akzo Corp | 薄膜形成用金属錯体 |
JPH05239066A (ja) * | 1991-03-18 | 1993-09-17 | Solvay Barium Strontium Gmbh | 蒸着可能な化合物、mocvd法の際に使用するための混合物、蒸着可能な化合物の製造法およびアルカリ土類金属を含有する層の析出法 |
JPH059608A (ja) * | 1991-06-07 | 1993-01-19 | Dowa Mining Co Ltd | 1,3−ジケトン系有機金属錯体の製造法 |
JPH05239067A (ja) * | 1992-02-28 | 1993-09-17 | Nippon Telegr & Teleph Corp <Ntt> | 高純度Baβ−ジケトン錯体の製造方法 |
JPH05255855A (ja) * | 1992-03-13 | 1993-10-05 | Nippon Sanso Kk | アルカリ土類金属の高純度β−ジケトネート錯体およびその製法 |
Non-Patent Citations (1)
Title |
---|
See also references of EP1044953A4 * |
Also Published As
Publication number | Publication date |
---|---|
US6376719B1 (en) | 2002-04-23 |
JP2000026362A (ja) | 2000-01-25 |
EP1044953A4 (en) | 2003-07-16 |
EP1044953A1 (en) | 2000-10-18 |
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