ES2002418A6 - Procedimiento de obtencion de monomeros acriliocos fluorados utiles en forma polimerizada para el tratamiento hidrofugo y oleofugo de diversos substratos. - Google Patents
Procedimiento de obtencion de monomeros acriliocos fluorados utiles en forma polimerizada para el tratamiento hidrofugo y oleofugo de diversos substratos.Info
- Publication number
- ES2002418A6 ES2002418A6 ES8602605A ES8602605A ES2002418A6 ES 2002418 A6 ES2002418 A6 ES 2002418A6 ES 8602605 A ES8602605 A ES 8602605A ES 8602605 A ES8602605 A ES 8602605A ES 2002418 A6 ES2002418 A6 ES 2002418A6
- Authority
- ES
- Spain
- Prior art keywords
- proofing
- radical
- polymers
- oil
- water
- 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
Links
- 239000000178 monomer Substances 0.000 title abstract 3
- 229920000642 polymer Polymers 0.000 title abstract 2
- 239000000758 substrate Substances 0.000 title abstract 2
- 239000003795 chemical substances by application Substances 0.000 title 1
- 239000002939 oilproofing Substances 0.000 title 1
- 238000004078 waterproofing Methods 0.000 title 1
- -1 perfluoroalkyl radical Chemical class 0.000 abstract 3
- 239000001257 hydrogen Substances 0.000 abstract 2
- 229910052739 hydrogen Inorganic materials 0.000 abstract 2
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 abstract 1
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical group [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 abstract 1
- 239000005864 Sulphur Chemical group 0.000 abstract 1
- 125000000217 alkyl group Chemical group 0.000 abstract 1
- 125000002947 alkylene group Chemical group 0.000 abstract 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical group [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 abstract 1
- 229920001577 copolymer Polymers 0.000 abstract 1
- 125000004435 hydrogen atom Chemical group [H]* 0.000 abstract 1
- 239000010985 leather Substances 0.000 abstract 1
- WCYWZMWISLQXQU-UHFFFAOYSA-N methyl Chemical group [CH3] WCYWZMWISLQXQU-UHFFFAOYSA-N 0.000 abstract 1
- 239000001301 oxygen Substances 0.000 abstract 1
- 229910052760 oxygen Inorganic materials 0.000 abstract 1
- 150000003254 radicals Chemical class 0.000 abstract 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F214/00—Copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen
- C08F214/18—Monomers containing fluorine
-
- C—CHEMISTRY; METALLURGY
- C14—SKINS; HIDES; PELTS; LEATHER
- C14C—CHEMICAL TREATMENT OF HIDES, SKINS OR LEATHER, e.g. TANNING, IMPREGNATING, FINISHING; APPARATUS THEREFOR; COMPOSITIONS FOR TANNING
- C14C11/00—Surface finishing of leather
- C14C11/003—Surface finishing of leather using macromolecular compounds
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C273/00—Preparation of urea or its derivatives, i.e. compounds containing any of the groups, the nitrogen atoms not being part of nitro or nitroso groups
- C07C273/18—Preparation of urea or its derivatives, i.e. compounds containing any of the groups, the nitrogen atoms not being part of nitro or nitroso groups of substituted ureas
- C07C273/1809—Preparation of urea or its derivatives, i.e. compounds containing any of the groups, the nitrogen atoms not being part of nitro or nitroso groups of substituted ureas with formation of the N-C(O)-N moiety
- C07C273/1818—Preparation of urea or its derivatives, i.e. compounds containing any of the groups, the nitrogen atoms not being part of nitro or nitroso groups of substituted ureas with formation of the N-C(O)-N moiety from -N=C=O and XNR'R"
- C07C273/1827—X being H
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F20/00—Homopolymers and copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and only one being terminated by only one carboxyl radical or a salt, anhydride, ester, amide, imide or nitrile thereof
- C08F20/02—Monocarboxylic acids having less than ten carbon atoms, Derivatives thereof
- C08F20/10—Esters
- C08F20/34—Esters containing nitrogen, e.g. N,N-dimethylaminoethyl (meth)acrylate
- C08F20/36—Esters containing nitrogen, e.g. N,N-dimethylaminoethyl (meth)acrylate containing oxygen in addition to the carboxy oxygen, e.g. 2-N-morpholinoethyl (meth)acrylate or 2-isocyanatoethyl (meth)acrylate
-
- 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]
- Y10T428/3154—Of fluorinated addition polymer from unsaturated monomers
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Health & Medical Sciences (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- General Chemical & Material Sciences (AREA)
- Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications (AREA)
- Paints Or Removers (AREA)
- Treatment And Processing Of Natural Fur Or Leather (AREA)
- Materials Applied To Surfaces To Minimize Adherence Of Mist Or Water (AREA)
- Treatments For Attaching Organic Compounds To Fibrous Goods (AREA)
- Polymers With Sulfur, Phosphorus Or Metals In The Main Chain (AREA)
- Polyurethanes Or Polyureas (AREA)
- Coating Of Shaped Articles Made Of Macromolecular Substances (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Abstract
PROCEDIMIENTO DE OBTENCION DE MONOMEROS ACRILICOS FLUORADOS UTILES EN FORMA POLIMERIZADA PARA EL TRATAMIENTO HIDROFUGO Y OLEOFUGO DE DIVERSOS SUSTRATOS. LOS MONOMEROS RESPONDEN A LA FORMULA: EN DONDE LOS DIVERSOS RADICALES TIENEN LOS SIGNIFICADOS INDICADOS EN LA DESCRIPCION Y EL PROCEDIMIENTO COMPRENDE REACCIONAR SOBRE UN DIISOCIANATO DE FORMULA OFCFC-Z-NFCFO, CANTIDADES EQUIMOLARES DE UN COMPUESTO POLIFLUORADO DE FORMULA RF-W-Q-H Y DE UN ESTER DE FORMULA RKNH-A-OCO-C(R)FCH2, EFECTUANDOSE LA REACCION EN EL SENO DE UN DISOLVENTE ORGANICO, A UNA TEMPERATURA DE 30 A 90J Y BAJO ATMOSFERA INERTE.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR8515347A FR2588555B1 (fr) | 1985-10-16 | 1985-10-16 | Monomeres acryliques fluores, polymeres en derivant et leur application au traitement hydrofuge et oleofuge de substrats divers |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| ES2002418A6 true ES2002418A6 (es) | 1988-08-01 |
Family
ID=9323882
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| ES8602605A Expired ES2002418A6 (es) | 1985-10-16 | 1986-10-15 | Procedimiento de obtencion de monomeros acriliocos fluorados utiles en forma polimerizada para el tratamiento hidrofugo y oleofugo de diversos substratos. |
Country Status (9)
| Country | Link |
|---|---|
| US (1) | US4778915A (es) |
| EP (1) | EP0223648B1 (es) |
| JP (1) | JPS6293267A (es) |
| KR (1) | KR900000157B1 (es) |
| CN (1) | CN86106575A (es) |
| AU (1) | AU594981B2 (es) |
| DE (1) | DE3667658D1 (es) |
| ES (1) | ES2002418A6 (es) |
| FR (1) | FR2588555B1 (es) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| ES2207420A1 (es) * | 2002-11-07 | 2004-05-16 | Pymag S.A. | Procedimiento de preparacion de nuevos monomeros acrilicos fluorados. |
Families Citing this family (48)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2590895B1 (fr) * | 1985-12-03 | 1988-01-15 | Atochem | Monomeres acryliques fluores, polymeres en derivant et leur application comme agents hydrophobes et oleophobes |
| DE3877261T2 (de) * | 1987-05-25 | 1993-05-19 | Daikin Ind Ltd | Copolymer und diesen enthaltende oel- und wasserabweisende zusammensetzung. |
| DE3803226A1 (de) * | 1988-02-04 | 1989-08-17 | Hoechst Ag | Mittel zur beschichtung mit fluorpolymeren |
| JPH089833B2 (ja) * | 1989-08-17 | 1996-01-31 | 旭硝子株式会社 | 防汚加工剤 |
| US5258458A (en) * | 1991-02-28 | 1993-11-02 | Minnesota Mining And Manufacturing Company | Composition for providing oil and water repellency |
| AU662326B2 (en) * | 1991-03-15 | 1995-08-31 | Redline Products, Inc. | Protective compositions |
| DE4143390A1 (en) * | 1991-04-26 | 1993-04-01 | Fluorine contg. (co)polymers, useful for water- and oil repellent treatment of substrates | |
| BR9206741A (pt) | 1991-11-12 | 1995-10-31 | Minnesota Mining & Mfg | Composição fluoroquímica artigo e processo de preparação da composição fluoroquímica |
| US5380901A (en) * | 1992-01-30 | 1995-01-10 | The United States Of America As Represented By The Secretary Of Commerce | Multifunctional acrylates and the synthesis thereof |
| JPH05345754A (ja) * | 1992-06-15 | 1993-12-27 | Suntory Ltd | ジペプチド誘導体およびそれを有効成分とする骨疾患の予防または治療剤 |
| DE4244951C2 (de) * | 1992-12-01 | 1998-08-06 | Minnesota Mining & Mfg | Fasersubstrat mit Wasser-, Öl-, Schmutzabweisungsvermögen und Weichgriffigkeit |
| US5616563A (en) * | 1992-12-07 | 1997-04-01 | University Of Maryland Baltimore Campus | Glutathione N-hydroxycarbamoyl thioesters and method of inhibiting neoplastic growth |
| DE4300858A1 (de) * | 1993-01-15 | 1994-07-21 | Basf Magnetics Gmbh | Magnetisches Aufzeichnungsmedium |
| EP0919576B1 (en) * | 1996-06-13 | 2004-04-07 | Daikin Industries, Limited | Novel copolymer, process for the preparation of the same, and use thereof |
| JPH108041A (ja) * | 1996-06-21 | 1998-01-13 | Daikin Ind Ltd | 水分散型フッ素系撥水撥油剤 |
| US6294103B1 (en) | 1996-11-07 | 2001-09-25 | 3M Innovative Properties Company | Use of amphiphilic copolymers containing a fluorinated monomer to impart waterproofness to leather |
| ES2143125T3 (es) | 1996-11-07 | 2000-05-01 | Minnesota Mining & Mfg | Uso de copolimeros anfifilicos que contienen un monomero fluorado para impartir impermeabilidad al cuero. |
| US6485789B1 (en) | 1997-04-14 | 2002-11-26 | 3M Innovative Properties Company | Fluorochemical composition containing a condensation product of a fluorochemical polyether and a poly-isocyanate to impart stain release properties to a substrate |
| US6239247B1 (en) | 1997-05-14 | 2001-05-29 | 3M Innovative Properties Company | Fluorochemical composition comprising a urethane having a fluorochemical oligomer and a hydrophilic segment to impart stain release properties to a substrate |
| US6224782B1 (en) | 1997-05-14 | 2001-05-01 | 3M Innovative Properties Company | Fluorochemical composition comprising a polyurethane having a fluorochemical oligomer and a hydrophilic segment to impart stain release properties to a substrate |
| US6162369A (en) * | 1997-05-14 | 2000-12-19 | 3M Innovative Properties Company | Fluorochemical composition comprising a polyurethane having a fluorochemical oligomer and a hydrophilic segment to impart stain release properties to a substrate |
| US6383633B1 (en) | 1997-05-14 | 2002-05-07 | 3M Innovative Properties Company | Fluorochemical composition comprising a polymer derived from a fluorochemical urethane (meth)acrylate monomer for imparting stain release properties to a substrate |
| US6380336B1 (en) | 1998-03-24 | 2002-04-30 | Nano-Tex, Llc | Copolymers and oil-and water-repellent compositions containing them |
| WO1999049124A2 (en) | 1998-03-24 | 1999-09-30 | Avantgarb, Llc | Modified textile and other materials and methods for their preparation |
| US6168866B1 (en) | 1998-08-19 | 2001-01-02 | 3M Innovative Properties Company | Abrasion and stain resistant curable fluorinated coating |
| US6098349A (en) * | 1998-09-22 | 2000-08-08 | Patent Category Corp. | Collapsible structures |
| US6525127B1 (en) | 1999-05-11 | 2003-02-25 | 3M Innovative Properties Company | Alkylated fluorochemical oligomers and use thereof in the treatment of fibrous substrates |
| US7049379B2 (en) * | 1999-05-11 | 2006-05-23 | 3M Innovative Properties Company | Alkylated fluorochemical oligomers and use thereof in the treatment of fibrous substrates |
| US6479612B1 (en) | 1999-08-10 | 2002-11-12 | E. I. Du Pont De Nemours And Company | Fluorochemical water and oil repellents |
| US6449147B2 (en) * | 2000-05-01 | 2002-09-10 | Patent Category Corp. | Collapsible structures having enhancements |
| JP3778168B2 (ja) * | 2002-12-24 | 2006-05-24 | ダイキン工業株式会社 | 皮革用塗料組成物、塗装方法および塗装皮革 |
| WO2005066224A1 (en) * | 2003-12-31 | 2005-07-21 | 3M Innovative Properties Company | Water-and oil-repellent fluoroacrylates |
| US7081545B2 (en) * | 2003-12-31 | 2006-07-25 | 3M Innovative Properties Company | Process for preparing fluorochemical monoisocyanates |
| US7345123B2 (en) * | 2004-12-28 | 2008-03-18 | 3M Innovative Properties Company | Fluoroacrylate-multifunctional acrylate copolymer compositions |
| US7291688B2 (en) * | 2004-12-28 | 2007-11-06 | 3M Innovative Properties Company | Fluoroacrylate-mercaptofunctional copolymers |
| US20060142530A1 (en) * | 2004-12-28 | 2006-06-29 | Moore George G | Water- and oil-repellent fluorourethanes and fluoroureas |
| US20060188729A1 (en) * | 2005-02-22 | 2006-08-24 | Kai-Volker Schubert | Washable leather with repellency |
| US7160480B2 (en) * | 2005-02-22 | 2007-01-09 | E. I. Du Pont De Nemours And Company | Leather treated with fluorochemicals |
| US7750093B2 (en) * | 2005-06-29 | 2010-07-06 | 3M Innovative Properties Company | Polyurethanes derived from oligomeric fluoroacrylates |
| US7722955B2 (en) * | 2006-04-13 | 2010-05-25 | 3M Innovative Properties Company | Flooring substrate having a coating of a curable composition |
| US20070244289A1 (en) * | 2006-04-13 | 2007-10-18 | 3M Innovative Properties Company | Method of making urethane based fluorinated monomers |
| US7728098B2 (en) * | 2006-07-27 | 2010-06-01 | 3M Innovative Properties Company | Fluorochemical composition comprising fluorinated oligomeric silane |
| US8071489B2 (en) * | 2007-07-10 | 2011-12-06 | E. I. Du Pont De Nemours And Company | Amphoteric fluorochemicals for paper |
| EP2045276A1 (en) * | 2007-10-05 | 2009-04-08 | E.I. Du Pont De Nemours And Company | Fluoropolymer |
| MX2011006535A (es) * | 2008-12-23 | 2011-07-13 | Basf Se | Proceso y formacion acuosa para impregnar materiales inertes y conferirles actividad de proteccion contra plagas. |
| CN102471237A (zh) * | 2009-06-30 | 2012-05-23 | 旭硝子株式会社 | 表面处理剂、物品及含氟醚化合物 |
| GB0919014D0 (en) | 2009-10-30 | 2009-12-16 | 3M Innovative Properties Co | Soll and stain resistant coating composition for finished leather substrates |
| CN107043466B (zh) * | 2017-05-16 | 2019-03-15 | 苏州棠华纳米科技有限公司 | 一种改性壳聚糖-二氧化硅复合气凝胶材料及其制备方法和应用 |
Family Cites Families (28)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA895313A (en) * | 1972-03-14 | Fmc Corporation | Polyfluoroureas and their use in treating fibrous materials | |
| NL280258A (es) * | 1961-09-07 | |||
| US3468924A (en) * | 1966-04-21 | 1969-09-23 | Du Pont | Alpha,alpha-difuloroalkylarylmethyl isocyanates |
| US3503915A (en) * | 1966-08-29 | 1970-03-31 | Minnesota Mining & Mfg | Fabric treating composition and treated fabric |
| US3528849A (en) * | 1967-05-22 | 1970-09-15 | Hooker Chemical Corp | Method for imparting oil and water repellency to textile materials |
| GB1231946A (es) * | 1969-03-20 | 1971-05-12 | ||
| NL6908449A (es) * | 1969-06-03 | 1970-12-07 | ||
| BE756285A (fr) * | 1969-09-17 | 1971-03-17 | Hoechst Ag | Produits de polyoxethylation fluores utilisables pour l'appretage de textiles |
| US4289892A (en) * | 1970-03-03 | 1981-09-15 | Minnesota Mining And Manufacturing Company | Fluorochemical foam stabilizer and foamed polyurethanes made therewith |
| US3929854A (en) * | 1971-03-29 | 1975-12-30 | Hoechst Ag | Bunte salts containing fluoro-alkyl groups |
| US3869465A (en) * | 1971-03-29 | 1975-03-04 | Hoechst Ag | Dispersions of polymer fluorine-containing acrylic acid derivatives |
| CS163273B2 (es) * | 1971-03-29 | 1975-08-29 | ||
| NL7203992A (es) * | 1971-03-29 | 1972-10-03 | ||
| US4024178A (en) * | 1972-03-06 | 1977-05-17 | Minnesota Mining And Manufacturing Company | Fluoroaliphatic radical containing carbodiimides |
| CH320273A4 (es) * | 1972-03-06 | 1976-09-15 | ||
| US3906049A (en) * | 1972-08-25 | 1975-09-16 | Pennwalt Corp | Fluorine and sulfur-containing compositions |
| US3899484A (en) * | 1972-08-25 | 1975-08-12 | Pennwalt Corp | Fluorinated phosphates |
| US3896035A (en) * | 1973-04-02 | 1975-07-22 | Minnesota Mining & Mfg | Pile fabric treating composition providing soil resistance |
| CA1071225A (en) * | 1973-11-05 | 1980-02-05 | Minnesota Mining And Manufacturing Company | Outerwear fabric treatment |
| DE2415150A1 (de) * | 1974-03-29 | 1975-10-16 | Hoechst Ag | Porenregler fuer polyurethane |
| US4287083A (en) * | 1978-10-13 | 1981-09-01 | Lord Corporation | Photoinitiation systems for free radical polymerization reactions |
| US4508916A (en) * | 1979-04-11 | 1985-04-02 | Minnesota Mining And Manufacturing Company | Curable substituted urethane acrylates |
| JPS5933315A (ja) * | 1982-08-20 | 1984-02-23 | Asahi Glass Co Ltd | 防汚加工剤の製造方法 |
| US4525305A (en) * | 1982-10-25 | 1985-06-25 | Minnesota Mining And Manufacturing Company | Leather with fluorochemical finish |
| US4606737A (en) * | 1984-06-26 | 1986-08-19 | Minnesota Mining And Manufacturing Company | Fluorochemical allophanate compositions and fibrous substrates treated therewith |
| US4584143A (en) * | 1984-10-01 | 1986-04-22 | Ciba Geigy Corporation | Fluoroalkyl-carbamyl group containing acrylates and methacrylates |
| DE3516257A1 (de) * | 1985-05-07 | 1986-11-13 | Bayer Ag, 5090 Leverkusen | (meth)-acrylsaeureester und ihre verwendung |
| FR2590895B1 (fr) * | 1985-12-03 | 1988-01-15 | Atochem | Monomeres acryliques fluores, polymeres en derivant et leur application comme agents hydrophobes et oleophobes |
-
1985
- 1985-10-16 FR FR8515347A patent/FR2588555B1/fr not_active Expired
-
1986
- 1986-10-07 EP EP86402225A patent/EP0223648B1/fr not_active Expired
- 1986-10-07 DE DE8686402225T patent/DE3667658D1/de not_active Expired - Fee Related
- 1986-10-13 CN CN198686106575A patent/CN86106575A/zh active Pending
- 1986-10-15 AU AU64123/86A patent/AU594981B2/en not_active Ceased
- 1986-10-15 ES ES8602605A patent/ES2002418A6/es not_active Expired
- 1986-10-15 KR KR1019860008648A patent/KR900000157B1/ko not_active Expired
- 1986-10-16 JP JP61246471A patent/JPS6293267A/ja active Pending
- 1986-10-16 US US06/920,105 patent/US4778915A/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| ES2207420A1 (es) * | 2002-11-07 | 2004-05-16 | Pymag S.A. | Procedimiento de preparacion de nuevos monomeros acrilicos fluorados. |
| WO2004041757A1 (es) * | 2002-11-07 | 2004-05-21 | Pymag, S.A. | Procedimiento de preparacion de nuevos monomeros acrilicos fluorados |
Also Published As
| Publication number | Publication date |
|---|---|
| FR2588555A1 (fr) | 1987-04-17 |
| JPS6293267A (ja) | 1987-04-28 |
| AU6412386A (en) | 1987-04-30 |
| CN86106575A (zh) | 1987-04-22 |
| EP0223648A2 (fr) | 1987-05-27 |
| FR2588555B1 (fr) | 1987-12-11 |
| DE3667658D1 (de) | 1990-01-25 |
| KR900000157B1 (ko) | 1990-01-23 |
| EP0223648A3 (en) | 1988-03-23 |
| EP0223648B1 (fr) | 1989-12-20 |
| KR870004066A (ko) | 1987-05-07 |
| US4778915A (en) | 1988-10-18 |
| AU594981B2 (en) | 1990-03-22 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| SA6 | Expiration date (snapshot 920101) |
Free format text: 2006-10-15 |
|
| FD1A | Patent lapsed |
Effective date: 20001204 |