WO2003072627A1 - Korrosionsarme epoxydharze und herstellungsverfahren dazu - Google Patents
Korrosionsarme epoxydharze und herstellungsverfahren dazu Download PDFInfo
- Publication number
- WO2003072627A1 WO2003072627A1 PCT/DE2003/000715 DE0300715W WO03072627A1 WO 2003072627 A1 WO2003072627 A1 WO 2003072627A1 DE 0300715 W DE0300715 W DE 0300715W WO 03072627 A1 WO03072627 A1 WO 03072627A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- test
- epoxy resins
- chlorine content
- corrosion
- epoxy resin
- Prior art date
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G59/00—Polycondensates containing more than one epoxy group per molecule; Macromolecules obtained by polymerising compounds containing more than one epoxy group per molecule using curing agents or catalysts which react with the epoxy groups
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L23/00—Details of semiconductor or other solid state devices
- H01L23/28—Encapsulations, e.g. encapsulating layers, coatings, e.g. for protection
- H01L23/29—Encapsulations, e.g. encapsulating layers, coatings, e.g. for protection characterised by the material, e.g. carbon
- H01L23/293—Organic, e.g. plastic
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L2924/00—Indexing scheme for arrangements or methods for connecting or disconnecting semiconductor or solid-state bodies as covered by H01L24/00
- H01L2924/0001—Technical content checked by a classifier
- H01L2924/0002—Not covered by any one of groups H01L24/00, H01L24/00 and H01L2224/00
Definitions
- the invention relates to extremely low epoxy resins
- Chlorine content especially low content of organically bound chlorine
- Epoxy resins have a wide range of applications in electronics and electrical engineering. They are used in molding compounds, glob top compounds, printed circuit board materials, adhesives, igniter fillers and foils and for covering electronic and optoelectronic components. Bisphenol A diglycidyl ether and bisphenol F diglycidyl ether are frequently used as base materials. These are usually obtained by reacting the corresponding bisphenols with epichlorohydrin. The ionically bound chloride formed in the synthesis can be removed to a few ppm by aqueous washing processes. By contrast, organic compounds containing chlorine, which are formed as by-products and cause a total chlorine content of the epoxy compounds of up to 0.5% by weight, are not removed by aqueous workup. Epoxy resins such as B. bisphenol A diglycidyl ether or bisphenol F diglycidyl ether with a total chlorine content of less than 100 ppm are not yet known.
- the object of the invention is therefore to create an epoxy resin, in particular a bisphenol diglycidyl ether, which only has a negligible residual chlorine content.
- the invention relates to an epoxy resin, with a total chlorine content, organically and / or ionically bound, less than 100 ppm.
- the invention also relates to a process for reducing the chlorine content in epoxy resins, which is characterized in that the epoxy resin is extracted in solid form in a solvent.
- the chlorine content can be reduced by extracting the resin in a solvent.
- the resin is in the form of solid particles. It is preferred that the particles, which can also be crystalline at least in some areas, are first crushed.
- the particles can particularly preferably be comminuted by suitable reprecipitation.
- the respective resin is dissolved, preferably with the addition of heat, in a suitable solvent, the finest droplets forming in the solvent (dispersion) on cooling, which are then extracted until the chlorine content has dropped accordingly.
- Extraction is understood here to mean the removal of certain constituents of a solid mixture of substances by means of suitable solvents.
- a diffusion process takes place, which is initiated by the different solubility of the components in the solvent.
- an organic solvent such as an alcohol, preferably a monovalent alcohol and particularly preferably methanol and / or ethanol, also for example in a mixture with water, is used as the solvent for the extraction.
- any other solvent and in particular also a mixture of different alcohols, water and / or solvents are suitable as solvents.
- solvent always refers to a mixture of solvents.
- the resin is stirred for extraction in a solvent, particularly preferably with the aid of a dispersing disk.
- the mixture is extracted and / or stirred with an increase in temperature. It should be noted that the epoxy resin remains solid at the temperature and the solvent does not evaporate.
- the resins of the invention were subjected to an electrical corrosion test on an adhesive formulation on IPC (Integrated Plastic Circuit) test boards under the following conditions: 85 ° C. at 85% rel. Moisture for 1000 hours.
- the invention is described in more detail below with reference to a production example and corrosion tests carried out on exemplary embodiments of the epoxy resin according to the invention, such as an adhesive, a formulation for a printed circuit board laminate, a casting resin and an underfiller:
- FIG. 1 shows in a diagram how the chlorine content gradually decreases during the extraction.
- Example 2 E-corrosion testing of an adhesive formulation on IPC test boards:
- DUTs 2 pieces of IPC test boards coated with adhesive.
- Applied test specification DIN EN 60068-2-67 Test carried out: climate test at 85 ° C at 85% rel. Humidity, duration 1000 hours.
- Test conditions The test boards were loaded with 100 volt DC during the entire test period. To investigate the corrosion, the surface resistance is shown when the leakage current falls below> 1mA or ⁇ 10 6 ⁇ between adjacent comb pattern tongues using Lumi diodes.
- composition of the adhesive is composition of the adhesive:
- DUTs 2 pieces of IPC test boards coated with formulation for PCB laminates.
- Applied test specification DIN EN 60068-2-67 Test carried out: climate test at 85 ° C at 85% rel. Humidity, duration 1000 hours.
- Test conditions The test boards were loaded with 100 volt DC during the entire test period. To investigate the corrosion, the surface resistance is shown when the leakage current falls below> 1mA or ⁇ 10 6 ⁇ between adjacent comb pattern tongues using Lumi diodes. The test setup is shown in Figure 1 in Example 2.
- composition of the formulation for printed circuit board laminates 100 g bisphenol A diglycidyl ether, purified total chlorine content 90 ppm 10.5 g dicyandiamine
- Test conditions The test boards were loaded with 100 volt DC during the entire test period. To investigate the corrosion, the surface resistance is shown when the leakage current falls below> 1mA or ⁇ 10 6 ⁇ between adjacent comb pattern tongues using Lumi diodes. The test setup is shown in Figure 1 in Example 2.
- composition of the casting resin 100 g bisphenol F diglycidyl ether, purified total chlorine content 70 ppm
- Test conditions The test boards were loaded with 100 volt DC during the entire test period. To investigate the corrosion, the surface resistance if the leakage current falls below> 1mA or ⁇ 10 6 ⁇ between neighboring ones Comb pattern tongues displayed using Lumi diodes. The test setup is shown in Figure 1 in Example 2.
- composition of the underfiller 30 g bisphenol A diglycidyl ether, purified total chlorine content 30 ppm
- Bisphenol-F-diglycidyl ether with a total chlorine content of ⁇ 100 ppm in molding compounds, glob top materials, printed circuit board materials, adhesives, underfillers, foils and to cover electronic and optoelectronic components with a total chlorine content of ⁇ 100 ppm has for the first time been able to formulate epoxy-functional, aromatic systems which show no corrosion according to DIN EN 60068-2-67 even after 1000 hours.
- the invention enables use for the first time
- the invention relates to epoxy resins with an extremely low chlorine content, in particular a low content of organically bound chlorine.
- it relates to a manufacturing process in which total chlorine contents of less than 100 ppm are achieved in the epoxy resin by extraction of solid epoxy resin particles, if appropriate after prior comminution and / or reprecipitation.
- total chlorine contents of less than 100 ppm are achieved in the epoxy resin by extraction of solid epoxy resin particles, if appropriate after prior comminution and / or reprecipitation.
- the use of these low-chlorine epoxy resins in electronics and / or electrical engineering considerably reduces the susceptibility to corrosion of the components.
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- Chemical & Material Sciences (AREA)
- Power Engineering (AREA)
- Condensed Matter Physics & Semiconductors (AREA)
- Engineering & Computer Science (AREA)
- Computer Hardware Design (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Epoxy Resins (AREA)
- Adhesives Or Adhesive Processes (AREA)
Abstract
Description
Claims
Priority Applications (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2003571329A JP4571806B2 (ja) | 2002-02-28 | 2003-02-28 | 低い腐食性のエポキシ樹脂およびそのための製造方法 |
EP03714684A EP1478674B1 (de) | 2002-02-28 | 2003-02-28 | Korrosionsarme epoxydharze und herstellungsverfahren dazu |
DE50303950T DE50303950D1 (de) | 2002-02-28 | 2003-02-28 | Korrosionsarme epoxydharze und herstellungsverfahren dazu |
US10/506,044 US7582706B2 (en) | 2002-02-28 | 2003-02-28 | Low chlorine content epoxy resin |
US12/511,389 US20090286951A1 (en) | 2002-02-28 | 2009-07-29 | Low-corrosion epoxy resins and production methods therefor |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE10208743A DE10208743A1 (de) | 2002-02-28 | 2002-02-28 | Korrosionsarme Epoxidharze und Herstellungsverfahren dazu |
DE10208743.1 | 2002-02-28 |
Related Child Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US12/511,389 Division US20090286951A1 (en) | 2002-02-28 | 2009-07-29 | Low-corrosion epoxy resins and production methods therefor |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2003072627A1 true WO2003072627A1 (de) | 2003-09-04 |
Family
ID=27762503
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/DE2003/000715 WO2003072627A1 (de) | 2002-02-28 | 2003-02-28 | Korrosionsarme epoxydharze und herstellungsverfahren dazu |
Country Status (6)
Country | Link |
---|---|
US (2) | US7582706B2 (de) |
EP (1) | EP1478674B1 (de) |
JP (1) | JP4571806B2 (de) |
CN (2) | CN1639222A (de) |
DE (2) | DE10208743A1 (de) |
WO (1) | WO2003072627A1 (de) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2008028827A2 (de) * | 2006-09-07 | 2008-03-13 | Siemens Aktiengesellschaft | Basismaterial für fotostrukturierbare resists und dielektrika |
Families Citing this family (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20090233225A1 (en) * | 2008-03-12 | 2009-09-17 | Johnson Donald W | Low chlorine epoxy resin formulations |
CN102574981A (zh) * | 2009-10-07 | 2012-07-11 | 陶氏环球技术有限责任公司 | 减少固体环氧树脂中的杂质 |
JP2013507481A (ja) * | 2009-10-07 | 2013-03-04 | ダウ グローバル テクノロジーズ エルエルシー | 固体エポキシ樹脂の製造方法 |
WO2011068643A2 (en) | 2009-12-02 | 2011-06-09 | Dow Global Technologies Inc. | Composite compositions |
WO2011068644A1 (en) | 2009-12-02 | 2011-06-09 | Dow Global Technologies Inc. | Epoxy resin compositions |
JP5871326B2 (ja) | 2009-12-02 | 2016-03-01 | ブルー キューブ アイピー エルエルシー | コーティング組成物 |
DE102012205046A1 (de) * | 2012-03-29 | 2013-10-02 | Siemens Aktiengesellschaft | Elektroisolationskörper für eine Hochspannungsrotationsmaschine und Verfahren zum Herstellen des Elektroisolationskörpers |
WO2015138128A1 (en) | 2014-03-12 | 2015-09-17 | Dow Global Technologies Llc | Epoxy resin compositions |
DE102016203867A1 (de) | 2016-03-09 | 2017-09-14 | Siemens Aktiengesellschaft | Fester Isolationswerkstoff, Verwendung dazu und damit hergestelltes Isolationssystem |
CN115093542B (zh) * | 2022-07-20 | 2023-12-05 | 智仑超纯环氧树脂(西安)有限公司 | 降低环氧树脂总氯含量的方法、超高纯环氧树脂及其应用 |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4668807A (en) * | 1984-12-21 | 1987-05-26 | Ciba-Geigy Corporation | Process for reducing the content of hydrolyzable chlorine in glycidyl compounds |
US5098965A (en) * | 1991-01-31 | 1992-03-24 | Shell Oil Company | Process for preparing low-chlorine epoxy resins |
JPH0873563A (ja) * | 1994-09-09 | 1996-03-19 | Nippon Steel Chem Co Ltd | 結晶状エポキシ樹脂、その製造法、それを用いたエポキシ樹脂組成物および硬化物 |
US5783713A (en) * | 1995-06-07 | 1998-07-21 | National Starch And Chemical Investment Holding Corporation | Polyglycidylphenyl ethers of alkylene or alkyleneoxy chains for use in microelectronics adhesives |
US6211389B1 (en) * | 2000-05-23 | 2001-04-03 | Dexter Corporation | Methods of reducing the chloride content of epoxy compounds |
Family Cites Families (24)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CA802231A (en) * | 1968-12-24 | J. Belanger William | Low chlorine content diglycidyl ethers | |
US3413320A (en) * | 1960-03-14 | 1968-11-26 | Shell Oil Co | High purity diepoxide |
US3268619A (en) * | 1962-10-12 | 1966-08-23 | Michigan Chem Corp | Flame retardant epoxy resins |
US3636051A (en) * | 1969-11-04 | 1972-01-18 | Atlantic Richfield Co | Process for purification of dicyclopentadiene diepoxide |
JPS58173118A (ja) | 1982-04-05 | 1983-10-12 | Sumitomo Bakelite Co Ltd | 半導体ダイボンディング用エポキシ樹脂組成物 |
JPS58173116A (ja) * | 1982-04-05 | 1983-10-12 | Sumitomo Bakelite Co Ltd | エポキシ樹脂中の微量ハロゲンの除去方法 |
US4535150A (en) * | 1984-12-04 | 1985-08-13 | Celanese Corporation | Process for preparing epoxy resins having low hydrolyzable chlorine contents |
US4624975A (en) * | 1985-03-21 | 1986-11-25 | The Dow Chemical Company | Process for stabilizing the hydrolyzable chloride content in epoxy resins |
JPS61252222A (ja) * | 1985-05-01 | 1986-11-10 | Asahi Chiba Kk | エポキシ樹脂中の塩素の除去方法 |
JPS62235314A (ja) * | 1986-04-05 | 1987-10-15 | Toto Kasei Kk | エポキシ樹脂の精製方法 |
JP2558293B2 (ja) * | 1987-09-14 | 1996-11-27 | 日東電工株式会社 | 半導体装置 |
JP2551626B2 (ja) * | 1988-04-14 | 1996-11-06 | 三井石油化学工業株式会社 | 3価フェノールエポキシ樹脂の製造方法 |
JP2579350B2 (ja) * | 1988-09-21 | 1997-02-05 | 日東電工株式会社 | 半導体装置 |
JP2741040B2 (ja) * | 1988-10-12 | 1998-04-15 | 日本化薬株式会社 | エポキシ樹脂の製造方法 |
JPH02123122A (ja) * | 1988-10-31 | 1990-05-10 | Mitsui Petrochem Ind Ltd | 加水分解性塩素の低減化方法 |
JP3409915B2 (ja) * | 1994-04-18 | 2003-05-26 | 大日本インキ化学工業株式会社 | エポキシ樹脂の連続精製方法 |
US5717054A (en) * | 1995-06-07 | 1998-02-10 | National Starch & Chemical Investment Holding Corp. | Epoxy resins consisting of flexible chains terminated with glycidyloxyphenyl groups for use in microelectronics adhesives |
JPH1036484A (ja) * | 1996-07-26 | 1998-02-10 | Dainippon Ink & Chem Inc | エポキシ樹脂の精製方法 |
US6015574A (en) * | 1997-06-09 | 2000-01-18 | L'oreal | Lipophilic carrier systems |
JP4846078B2 (ja) * | 1998-06-04 | 2011-12-28 | 長春人造樹脂廠股▲分▼有限公司 | 加水分解性塩素含量の低いエポキシ樹脂の製造方法 |
JP3889520B2 (ja) * | 1999-02-17 | 2007-03-07 | ジャパンエポキシレジン株式会社 | エポキシ化合物の精製方法 |
JP3387873B2 (ja) * | 1999-12-09 | 2003-03-17 | 三井化学株式会社 | (チオ)エポキシ化合物の精製方法 |
JP2003246782A (ja) * | 2001-12-20 | 2003-09-02 | Nippon Steel Chem Co Ltd | 液状エポキシ化合物 |
JP3821766B2 (ja) * | 2002-09-02 | 2006-09-13 | 三井化学株式会社 | 硬化樹脂の製造方法 |
-
2002
- 2002-02-28 DE DE10208743A patent/DE10208743A1/de not_active Ceased
-
2003
- 2003-02-28 DE DE50303950T patent/DE50303950D1/de not_active Expired - Lifetime
- 2003-02-28 JP JP2003571329A patent/JP4571806B2/ja not_active Expired - Fee Related
- 2003-02-28 CN CNA038047195A patent/CN1639222A/zh active Pending
- 2003-02-28 WO PCT/DE2003/000715 patent/WO2003072627A1/de active IP Right Grant
- 2003-02-28 CN CN2010101440119A patent/CN101792520B/zh not_active Expired - Fee Related
- 2003-02-28 US US10/506,044 patent/US7582706B2/en not_active Expired - Fee Related
- 2003-02-28 EP EP03714684A patent/EP1478674B1/de not_active Expired - Lifetime
-
2009
- 2009-07-29 US US12/511,389 patent/US20090286951A1/en not_active Abandoned
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4668807A (en) * | 1984-12-21 | 1987-05-26 | Ciba-Geigy Corporation | Process for reducing the content of hydrolyzable chlorine in glycidyl compounds |
US5098965A (en) * | 1991-01-31 | 1992-03-24 | Shell Oil Company | Process for preparing low-chlorine epoxy resins |
JPH0873563A (ja) * | 1994-09-09 | 1996-03-19 | Nippon Steel Chem Co Ltd | 結晶状エポキシ樹脂、その製造法、それを用いたエポキシ樹脂組成物および硬化物 |
US5783713A (en) * | 1995-06-07 | 1998-07-21 | National Starch And Chemical Investment Holding Corporation | Polyglycidylphenyl ethers of alkylene or alkyleneoxy chains for use in microelectronics adhesives |
US6211389B1 (en) * | 2000-05-23 | 2001-04-03 | Dexter Corporation | Methods of reducing the chloride content of epoxy compounds |
Non-Patent Citations (1)
Title |
---|
PATENT ABSTRACTS OF JAPAN vol. 1996, no. 07 31 July 1996 (1996-07-31) * |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2008028827A2 (de) * | 2006-09-07 | 2008-03-13 | Siemens Aktiengesellschaft | Basismaterial für fotostrukturierbare resists und dielektrika |
WO2008028827A3 (de) * | 2006-09-07 | 2008-04-24 | Siemens Ag | Basismaterial für fotostrukturierbare resists und dielektrika |
Also Published As
Publication number | Publication date |
---|---|
DE10208743A1 (de) | 2003-12-11 |
CN101792520A (zh) | 2010-08-04 |
JP4571806B2 (ja) | 2010-10-27 |
EP1478674B1 (de) | 2006-06-21 |
EP1478674A1 (de) | 2004-11-24 |
CN1639222A (zh) | 2005-07-13 |
US20050222381A1 (en) | 2005-10-06 |
CN101792520B (zh) | 2012-12-05 |
US20090286951A1 (en) | 2009-11-19 |
DE50303950D1 (de) | 2006-08-03 |
JP2005519147A (ja) | 2005-06-30 |
US7582706B2 (en) | 2009-09-01 |
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