ES8600341A1 - Procedimiento para preparar una espuma de poliuretano - Google Patents
Procedimiento para preparar una espuma de poliuretanoInfo
- Publication number
- ES8600341A1 ES8600341A1 ES531474A ES531474A ES8600341A1 ES 8600341 A1 ES8600341 A1 ES 8600341A1 ES 531474 A ES531474 A ES 531474A ES 531474 A ES531474 A ES 531474A ES 8600341 A1 ES8600341 A1 ES 8600341A1
- Authority
- ES
- Spain
- Prior art keywords
- dimethyl terephthalate
- manufacture
- foams
- transesterified
- weight percent
- 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
- WOZVHXUHUFLZGK-UHFFFAOYSA-N dimethyl terephthalate Chemical compound COC(=O)C1=CC=C(C(=O)OC)C=C1 WOZVHXUHUFLZGK-UHFFFAOYSA-N 0.000 title abstract 6
- 239000006260 foam Substances 0.000 title abstract 5
- 239000006227 byproduct Substances 0.000 title abstract 2
- 238000004519 manufacturing process Methods 0.000 title abstract 2
- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 abstract 2
- REIDAMBAPLIATC-UHFFFAOYSA-M 4-methoxycarbonylbenzoate Chemical compound COC(=O)C1=CC=C(C([O-])=O)C=C1 REIDAMBAPLIATC-UHFFFAOYSA-M 0.000 abstract 1
- 239000004604 Blowing Agent Substances 0.000 abstract 1
- 239000003054 catalyst Substances 0.000 abstract 1
- 230000001413 cellular effect Effects 0.000 abstract 1
- 238000002485 combustion reaction Methods 0.000 abstract 1
- 150000002148 esters Chemical class 0.000 abstract 1
- WGCNASOHLSPBMP-UHFFFAOYSA-N hydroxyacetaldehyde Natural products OCC=O WGCNASOHLSPBMP-UHFFFAOYSA-N 0.000 abstract 1
- 239000000463 material Substances 0.000 abstract 1
- 239000000203 mixture Substances 0.000 abstract 1
- 229920001228 polyisocyanate Polymers 0.000 abstract 1
- 239000005056 polyisocyanate Substances 0.000 abstract 1
- 229920000582 polyisocyanurate Polymers 0.000 abstract 1
- 239000011495 polyisocyanurate Substances 0.000 abstract 1
- 229920005903 polyol mixture Polymers 0.000 abstract 1
- 239000000779 smoke Substances 0.000 abstract 1
- 238000005809 transesterification reaction Methods 0.000 abstract 1
- 238000005829 trimerization reaction Methods 0.000 abstract 1
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
- C08G18/00—Polymeric products of isocyanates or isothiocyanates
- C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
- C08G18/08—Processes
- C08G18/09—Processes comprising oligomerisation of isocyanates or isothiocyanates involving reaction of a part of the isocyanate or isothiocyanate groups with each other in the reaction mixture
- C08G18/092—Processes comprising oligomerisation of isocyanates or isothiocyanates involving reaction of a part of the isocyanate or isothiocyanate groups with each other in the reaction mixture oligomerisation to isocyanurate groups
-
- 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
- C08G18/00—Polymeric products of isocyanates or isothiocyanates
- C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
- C08G18/28—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
- C08G18/40—High-molecular-weight compounds
- C08G18/42—Polycondensates having carboxylic or carbonic ester groups in the main chain
- C08G18/4205—Polycondensates having carboxylic or carbonic ester groups in the main chain containing cyclic groups
- C08G18/4208—Polycondensates having carboxylic or carbonic ester groups in the main chain containing cyclic groups containing aromatic groups
- C08G18/4225—Polycondensates having carboxylic or carbonic ester groups in the main chain containing cyclic groups containing aromatic groups derived from residues obtained from the manufacture of dimethylterephthalate and from polyhydroxy compounds
-
- 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
- C08G2110/00—Foam properties
- C08G2110/0025—Foam properties rigid
-
- 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
- C08G2110/00—Foam properties
- C08G2110/0041—Foam properties having specified density
-
- 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
- C08G2170/00—Compositions for adhesives
- C08G2170/60—Compositions for foaming; Foamed or intumescent adhesives
-
- 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
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S521/00—Synthetic resins or natural rubbers -- part of the class 520 series
- Y10S521/902—Cellular polymer containing an isocyanurate structure
-
- 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
- Y10T428/249921—Web or sheet containing structurally defined element or component
- Y10T428/249953—Composite having voids in a component [e.g., porous, cellular, etc.]
-
- 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
- Y10T428/249921—Web or sheet containing structurally defined element or component
- Y10T428/249953—Composite having voids in a component [e.g., porous, cellular, etc.]
- Y10T428/249986—Void-containing component contains also a solid fiber or solid particle
-
- 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]
- Y10T428/31547—Of polyisocyanurate
Landscapes
- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Polyurethanes Or Polyureas (AREA)
- Manufacture Of Porous Articles, And Recovery And Treatment Of Waste Products (AREA)
- Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications (AREA)
- Polyesters Or Polycarbonates (AREA)
- Emulsifying, Dispersing, Foam-Producing Or Wetting Agents (AREA)
Abstract
METODO DE PREPARACION DE ESPUMAS DE POLIURETANO.COMPRENDE LA REACCION CONJUNTA, EN CONDICIONES DE FORMACION DE ESPUMA, DE UN POLIISOCIANATO ORGANICO, UN AGENTE EXPANSIONANTE, UN POLIOL Y UN CATALIZADOR; EL 20 AL 50 DEL POLIOL ESTA CONSTITUIDO POR UNA MEZCLA POLIOLICA DERIVADA DE UNA FRACCION SUBPRODUCTO DE LA PRODUCCION DE TEREFTALATO DE DIMETILO, TRANSESTERIFICADA CON UN GLICOL DE PESO MOLECULAR 60-400 APROXIMADAMENTE DE MODO QUE LA PARTE PRINCIPAL DE DICHA FRACCION CONTIENE DE 15 A 75 DE TEREFTALATO DE DIMETILO Y DE 30 A 85 DE UNA MEZCLA DE TEREFTALATO DE MONOMETILO, ESTERES DE DOBLE ANILLO Y MATERIALES POLIMEROS.ESTAS ESPUMAS TIENEN APLICACIONES PARA FABRICACION DE PANELES DE CONSTRUCCION Y EN EL AISLAMIENTO DE TUBERIAS.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US06/344,459 US4411949A (en) | 1982-02-01 | 1982-02-01 | Polymeric foams from transesterified by-product derived from manufacture of dimethyl terephthalate and laminates therefrom |
Publications (2)
Publication Number | Publication Date |
---|---|
ES531474A0 ES531474A0 (es) | 1985-10-01 |
ES8600341A1 true ES8600341A1 (es) | 1985-10-01 |
Family
ID=23350628
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
ES519416A Granted ES519416A0 (es) | 1982-02-01 | 1983-01-31 | Procedimiento para preparar una espuma de poliisocianurato. |
ES531474A Expired ES8600341A1 (es) | 1982-02-01 | 1984-04-10 | Procedimiento para preparar una espuma de poliuretano |
Family Applications Before (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
ES519416A Granted ES519416A0 (es) | 1982-02-01 | 1983-01-31 | Procedimiento para preparar una espuma de poliisocianurato. |
Country Status (10)
Country | Link |
---|---|
US (1) | US4411949A (es) |
EP (1) | EP0086882B1 (es) |
JP (1) | JPS58134110A (es) |
AT (1) | ATE19407T1 (es) |
AU (1) | AU550686B2 (es) |
CA (1) | CA1178400A (es) |
DE (1) | DE3270800D1 (es) |
DK (1) | DK37983A (es) |
ES (2) | ES519416A0 (es) |
NO (1) | NO823997L (es) |
Families Citing this family (47)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4711912A (en) * | 1982-04-29 | 1987-12-08 | The Celotex Corporation | Polyisocyanurate foams from digestion products of polyalkylene terephthalate polymers and polyols |
US4442237A (en) * | 1982-11-22 | 1984-04-10 | Texaco Inc. | Novel aromatic amide polyols from the reaction of phthalic acid residues, alkylene glycols and amino alcohols |
DE3373662D1 (en) * | 1982-11-22 | 1987-10-22 | Texaco Development Corp | Aromatic polyols and rigid polyurethane and polyisocyanurate foams obtainable therefrom |
US4469821A (en) * | 1983-08-17 | 1984-09-04 | Mobil Oil Corporation | Low smoke, halohydrocarbon-compatible urethane-isocyanurate foam compositions |
US4555418A (en) * | 1983-10-12 | 1985-11-26 | The Celotex Corporation | Alkoxylated aromatic amine-aromatic polyester polyol blend and polyisocyanurate foam therefrom |
US4496625A (en) * | 1983-10-12 | 1985-01-29 | The Celotex Corporation | Alkoxylated aromatic amine-aromatic polyester polyol blend and polyisocyanurate foam therefrom |
US4572865A (en) * | 1983-12-05 | 1986-02-25 | The Celotex Corporation | Faced foam insulation board and froth-foaming method for making same |
US4521547A (en) * | 1984-01-04 | 1985-06-04 | Mobil Oil Corporation | Highly flame resistant rigid urethane-isocyanurate foam compositions |
US4695501A (en) * | 1984-04-10 | 1987-09-22 | Fibre Converters, Inc. | Thermoformable composite articles |
US5114755A (en) * | 1985-09-30 | 1992-05-19 | Sloss Industries Corporation | Process for making a laminate and the laminate made thereby |
US4623673A (en) | 1985-10-24 | 1986-11-18 | The Dow Chemical Company | Urethane-modified polyisocyanurate rigid foam |
US4652591A (en) * | 1985-11-12 | 1987-03-24 | Jim Walter Resources, Inc. | Reaction products of terephthalic acid residues and polycarboxylic acid-containing polyols and polymeric foams obtained therefrom |
US4636530A (en) * | 1985-11-25 | 1987-01-13 | Basf Corporation | Isocyanate terminated quasi-prepolymers useful for preparing urethane-group-containing polyisocyanurate foams having low friability |
US4720571A (en) * | 1986-06-18 | 1988-01-19 | Hercules Incorporated | Polyols from scrap polyethylene terephthalate and dimethyl terephthalate process residue |
US4714717A (en) * | 1987-04-06 | 1987-12-22 | Jim Walter Resources, Inc. | Polyester polyols modified by low molecular weight glycols and cellular foams therefrom |
NO163648C (no) * | 1987-04-29 | 1990-06-27 | Dag Vilnes | Fremgangsmaate til isolering av et roerlegeme som er nedsenket i vann. |
US4753837A (en) * | 1987-05-11 | 1988-06-28 | Mobay Corporation | Novel laminated panel |
US4797428A (en) * | 1987-06-22 | 1989-01-10 | Mobay Corporation | Foam systems and ASTM E-84 class 1 rated foams produced therefrom |
US4753967A (en) * | 1987-08-17 | 1988-06-28 | Sloss Industries Corporation | Polyester polyols modified by polyols having 1 degree and 2 degree OH groups and cellular foams therefrom |
US5109031A (en) * | 1989-03-13 | 1992-04-28 | Jim Walter Research Corp. | Rigid foam with improved "K" factor by reacting a polyisocyanate and polyester polyol containing low free glycol |
US5064873A (en) * | 1989-04-24 | 1991-11-12 | Jim Walter Research Corp. | Rigid foam with improved "k" factor by reacting a polyisocyanate prepolymer and polyester polyol containing low free glycol |
US5164422A (en) * | 1990-02-26 | 1992-11-17 | The Celotex Corporation | Manufacture of polyisocyanate prepolymers using ethylene glycol and cellular foams therefrom |
CA2071030A1 (en) * | 1991-06-17 | 1992-12-18 | Kenneth P. Klapper | Thermoformable polyisocyanurate foam laminates for interior finishing applications |
US5762735A (en) * | 1995-02-07 | 1998-06-09 | Collins; Burley Burk | Method of manufacturing carpet pads |
US5531849A (en) * | 1995-02-07 | 1996-07-02 | Collins; Burley B. | Method of manufacturing carped pads |
US5605940A (en) * | 1995-02-13 | 1997-02-25 | The Celotex Corporation | High equivalent weight polyester polyols for closed cell, rigid foams |
MX9604872A (es) | 1995-10-27 | 1997-04-30 | Basf Corp | Composiciones de poliol que proporcionan resistencia mejorada a las llamas y factores k curados a las espumas de poliuretano. |
US5789458A (en) * | 1997-06-12 | 1998-08-04 | Celotex Corporation | Method for producing foams from high acid polyester polyols |
US6359022B1 (en) | 1997-10-10 | 2002-03-19 | Stepan Company | Pentane compatible polyester polyols |
US5922779A (en) * | 1997-10-10 | 1999-07-13 | Stepan Company | Polyol blends for producing hydrocarbon-blown polyurethane and polyisocyanurate foams |
US6664363B1 (en) * | 1998-02-23 | 2003-12-16 | Stepan Company | Low viscosity polyester polyols and methods for preparing same |
US6058535A (en) * | 1998-12-14 | 2000-05-09 | Firkins, Jr.; Lester D. | Universal sport seat |
US6866923B2 (en) * | 2000-11-15 | 2005-03-15 | Atlas Roofing Corporation | Thermosetting plastic foams and methods of production thereof using adhesion additives |
WO2004009670A1 (en) * | 2002-07-19 | 2004-01-29 | E.I. Du Pont De Nemours And Company | Aromatic polyester polyols |
US20040067353A1 (en) * | 2002-10-08 | 2004-04-08 | Miller Thomas S. | Self-foaming core reinforcement for laminate applications |
US20060069175A1 (en) * | 2003-07-15 | 2006-03-30 | E. I. Du Pont De Nemours And Company | Aromatic polyester polyols |
US20050136242A1 (en) * | 2003-12-22 | 2005-06-23 | Kimberly-Clark Worldwide, Inc. | Porous substrates having one side treated at a higher concentration and methods of treating porous substrates |
EP1831012A2 (en) * | 2004-11-24 | 2007-09-12 | Dow Gloval Technologies Inc. | Laminated polyisocyanurate foam structure with improved astm e-84 flame spread index and smoke developed index |
US20070208096A1 (en) * | 2006-03-02 | 2007-09-06 | Oxid L.P. | Sulfonated aromatic polyester polyol compositions |
CN107075094A (zh) | 2014-10-29 | 2017-08-18 | 树脂酸盐材料集团有限公司 | 来自羟基官能的缩酮酸、酯或酰胺的高再循环含量的聚酯型多元醇 |
KR20170113565A (ko) | 2015-01-21 | 2017-10-12 | 레지네이트 머티리얼스 그룹, 아이엔씨. | 열가소성 폴리에스테르 및 리그닌 또는 탄닌 유래의 고 재활용 함량의 폴리올 |
EP3283545A1 (en) | 2015-04-14 | 2018-02-21 | Resinate Materials Group, Inc. | Polyester polyols with increased clarity |
US10336925B2 (en) | 2015-09-08 | 2019-07-02 | Resinate Materials Group, Inc. | Polyester polyols for reactive hot-melt adhesives |
EP3347396A1 (en) | 2015-09-08 | 2018-07-18 | Resinate Materials Group, Inc. | Polyester polyols for reactive hot-melt adhesives |
WO2017058504A1 (en) | 2015-10-02 | 2017-04-06 | Resinate Materials Group, Inc. | High performance coatings |
WO2018049407A2 (en) | 2016-09-12 | 2018-03-15 | Resinate Materials Group, Inc. | Polyphenol alkoxylate containing blends and coatings |
US12358190B1 (en) * | 2021-01-18 | 2025-07-15 | Holcim Technology Ltd | Process to yield foam construction boards with low surface irregularities |
Family Cites Families (15)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1494603A1 (de) * | 1964-08-08 | 1969-10-30 | Bayer Ag | Verfahren zur Herstellung von hochelastischen Faeden |
DE1720406A1 (de) * | 1967-08-03 | 1971-06-16 | Hoechst Ag | Verfahren zur Herstellung ungesaettigter Polyesterharze |
US3647759A (en) * | 1970-02-04 | 1972-03-07 | Hercules Inc | Resinous reaction product of ethylene glycol and dmt esterified oxidate residue |
US3804810A (en) * | 1970-12-30 | 1974-04-16 | Du Pont | Cross-linked polyurethanes based on aromatic/aliphatic copolyesters |
US4137221A (en) * | 1974-07-11 | 1979-01-30 | Teijin Limited | Heat-curable and solvent-soluble ester group-containing polymer compositions and process for their preparation |
JPS5311314B2 (es) * | 1974-09-25 | 1978-04-20 | ||
US4039487A (en) * | 1976-01-19 | 1977-08-02 | The Upjohn Company | Cellular isocyanurate polymer |
US4100354A (en) * | 1976-08-05 | 1978-07-11 | Owens-Corning Fiberglass Corporation | Terephthalate ester polyols |
DE2637170A1 (de) * | 1976-08-18 | 1978-02-23 | Bayer Ag | Verfahren zur herstellung von isocyanuratgruppen und urethangruppen aufweisenden kunststoffen |
US4212917A (en) * | 1978-06-01 | 1980-07-15 | The Celotex Corporation | Polyisocyanurate foam laminate |
US4184022A (en) * | 1978-09-15 | 1980-01-15 | Owens-Corning Fiberglas Corporation | Polyisocyanurate foam comprising reaction product of a polyisocyanate and a polyol mixture comprising a carboxylic ester polyol and a resole polyether polyol using a catalyst comprising dimethylethanolamine and an alkali metal salt of a carboxylic acid |
US4223068A (en) * | 1978-09-27 | 1980-09-16 | Freeman Chemical Corporation | Rigid polyurethane foam containing polyester residue digestion product and building panel made therefrom |
US4233408A (en) * | 1979-05-07 | 1980-11-11 | Witco Chemical Corporation | Polyurethane foams from polyester precursor derived from adipic acid process waste |
US4237238A (en) * | 1979-10-03 | 1980-12-02 | The Upjohn Company | Polyisocyanurate foams based on esterified DMI oxidation residue additive |
DE3001462A1 (de) * | 1980-01-17 | 1981-09-10 | Basf Ag, 6700 Ludwigshafen | Verfahren zur herstellung von urethan- und/oder isocyanuratgruppenhaltigen schaumstoffen |
-
1982
- 1982-02-01 US US06/344,459 patent/US4411949A/en not_active Expired - Lifetime
- 1982-09-10 CA CA000411141A patent/CA1178400A/en not_active Expired
- 1982-11-12 AU AU90430/82A patent/AU550686B2/en not_active Ceased
- 1982-11-25 DE DE8282110891T patent/DE3270800D1/de not_active Expired
- 1982-11-25 AT AT82110891T patent/ATE19407T1/de not_active IP Right Cessation
- 1982-11-25 EP EP82110891A patent/EP0086882B1/en not_active Expired
- 1982-11-29 NO NO823997A patent/NO823997L/no unknown
-
1983
- 1983-01-31 JP JP58015368A patent/JPS58134110A/ja active Pending
- 1983-01-31 ES ES519416A patent/ES519416A0/es active Granted
- 1983-01-31 DK DK37983A patent/DK37983A/da not_active Application Discontinuation
-
1984
- 1984-04-10 ES ES531474A patent/ES8600341A1/es not_active Expired
Also Published As
Publication number | Publication date |
---|---|
DK37983D0 (da) | 1983-01-31 |
JPS58134110A (ja) | 1983-08-10 |
AU9043082A (en) | 1983-08-11 |
CA1178400A (en) | 1984-11-20 |
ATE19407T1 (de) | 1986-05-15 |
EP0086882A1 (en) | 1983-08-31 |
ES8406515A1 (es) | 1984-07-16 |
US4411949A (en) | 1983-10-25 |
ES519416A0 (es) | 1984-07-16 |
DE3270800D1 (en) | 1986-05-28 |
EP0086882B1 (en) | 1986-04-23 |
ES531474A0 (es) | 1985-10-01 |
AU550686B2 (en) | 1986-03-27 |
DK37983A (da) | 1983-08-02 |
NO823997L (no) | 1983-08-02 |
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