ES2068492T3 - Composiciones acuosas gelificables que contienen polimeros con grupos funcionales quelantes especiales que sirven para extraer petroleo de un campo petrolifero. - Google Patents
Composiciones acuosas gelificables que contienen polimeros con grupos funcionales quelantes especiales que sirven para extraer petroleo de un campo petrolifero.Info
- Publication number
- ES2068492T3 ES2068492T3 ES91202985T ES91202985T ES2068492T3 ES 2068492 T3 ES2068492 T3 ES 2068492T3 ES 91202985 T ES91202985 T ES 91202985T ES 91202985 T ES91202985 T ES 91202985T ES 2068492 T3 ES2068492 T3 ES 2068492T3
- Authority
- ES
- Spain
- Prior art keywords
- oil
- gelificable
- functional groups
- chelanting
- special
- 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 - Lifetime
Links
- 229920000642 polymer Polymers 0.000 title abstract 2
- 239000000203 mixture Substances 0.000 title 1
- 150000001875 compounds Chemical class 0.000 abstract 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract 2
- 239000000499 gel Substances 0.000 abstract 1
- 229910021645 metal ion Inorganic materials 0.000 abstract 1
- 229920000620 organic polymer Polymers 0.000 abstract 1
- 230000000704 physical effect Effects 0.000 abstract 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
- C09K8/00—Compositions for drilling of boreholes or wells; Compositions for treating boreholes or wells, e.g. for completion or for remedial operations
- C09K8/60—Compositions for stimulating production by acting on the underground formation
- C09K8/84—Compositions based on water or polar solvents
- C09K8/86—Compositions based on water or polar solvents containing organic compounds
- C09K8/88—Compositions based on water or polar solvents containing organic compounds macromolecular compounds
- C09K8/887—Compositions based on water or polar solvents containing organic compounds macromolecular compounds containing cross-linking agents
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/01—Use of inorganic substances as compounding ingredients characterized by their specific function
- C08K3/011—Crosslinking or vulcanising agents, e.g. accelerators
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
- C09K8/00—Compositions for drilling of boreholes or wells; Compositions for treating boreholes or wells, e.g. for completion or for remedial operations
- C09K8/02—Well-drilling compositions
- C09K8/04—Aqueous well-drilling compositions
- C09K8/06—Clay-free compositions
- C09K8/12—Clay-free compositions containing synthetic organic macromolecular compounds or their precursors
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
- C09K8/00—Compositions for drilling of boreholes or wells; Compositions for treating boreholes or wells, e.g. for completion or for remedial operations
- C09K8/50—Compositions for plastering borehole walls, i.e. compositions for temporary consolidation of borehole walls
- C09K8/504—Compositions based on water or polar solvents
- C09K8/506—Compositions based on water or polar solvents containing organic compounds
- C09K8/508—Compositions based on water or polar solvents containing organic compounds macromolecular compounds
- C09K8/512—Compositions based on water or polar solvents containing organic compounds macromolecular compounds containing cross-linking agents
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
- C09K8/00—Compositions for drilling of boreholes or wells; Compositions for treating boreholes or wells, e.g. for completion or for remedial operations
- C09K8/60—Compositions for stimulating production by acting on the underground formation
- C09K8/62—Compositions for forming crevices or fractures
- C09K8/66—Compositions based on water or polar solvents
- C09K8/68—Compositions based on water or polar solvents containing organic compounds
- C09K8/685—Compositions based on water or polar solvents containing organic compounds containing cross-linking agents
-
- 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
- Y10S507/00—Earth boring, well treating, and oil field chemistry
- Y10S507/902—Controlled release agent
-
- 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
- Y10S507/00—Earth boring, well treating, and oil field chemistry
- Y10S507/903—Crosslinked resin or polymer
-
- 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
- Y10S507/00—Earth boring, well treating, and oil field chemistry
- Y10S507/922—Fracture fluid
-
- 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
- Y10S507/00—Earth boring, well treating, and oil field chemistry
- Y10S507/935—Enhanced oil recovery
Landscapes
- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Organic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Compositions Of Macromolecular Compounds (AREA)
- Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications (AREA)
- Colloid Chemistry (AREA)
- Fats And Perfumes (AREA)
- Processes Of Treating Macromolecular Substances (AREA)
Abstract
SE PRESENTAN COMPUESTOS GELIFICABLES QUE CONTIENEN: A) AGUA; B) UN POLIMERO ORGANICO SOLUBLE EN AGUA QUE SOPORTA GRUPOS FUNCIONALES QUELANTES ESPECIALES, C) UN ION DE METAL MULTIVALENTE CAPAZ DE PROVOCAR EL ENLACE DEL POLIMERO. ESTOS COMPUESTOS SON UTILES PARA RECUPERAR PETROLEO DE UN CAMPO DE PETROLEO. LOS MENCIONADOS COMPUESTOS HACEN POSIBLE QUE SE OBTENGAN GELES QUE ESTAN DOTADOS CON PROPIEDADES FISICAS MEJORADAS Y PRESENTAN UNA MAYOR ESTABILIDAD BAJO LAS CONDICIONES QUE PREVALECEN EN LOS CAMPOS DE PETROLEO.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| IT02217390A IT1243492B (it) | 1990-11-23 | 1990-11-23 | Composizioni acquose gelificabili contenenti polimeri con particolari gruppi funzionali chelanti utili per il recupero del petrolio da un giacimento. |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| ES2068492T3 true ES2068492T3 (es) | 1995-04-16 |
Family
ID=11192583
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| ES91202985T Expired - Lifetime ES2068492T3 (es) | 1990-11-23 | 1991-11-16 | Composiciones acuosas gelificables que contienen polimeros con grupos funcionales quelantes especiales que sirven para extraer petroleo de un campo petrolifero. |
| ES19919103497U Expired - Fee Related ES1019384Y (es) | 1990-11-23 | 1991-11-21 | Dispositivo de accionamiento de una tolva para una bomba rotativa de embutir carne picada. |
Family Applications After (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| ES19919103497U Expired - Fee Related ES1019384Y (es) | 1990-11-23 | 1991-11-21 | Dispositivo de accionamiento de una tolva para una bomba rotativa de embutir carne picada. |
Country Status (10)
| Country | Link |
|---|---|
| US (1) | US5256315A (es) |
| EP (1) | EP0487153B1 (es) |
| JP (1) | JPH04330932A (es) |
| BR (1) | BR9105087A (es) |
| CA (1) | CA2056074C (es) |
| DK (1) | DK0487153T3 (es) |
| ES (2) | ES2068492T3 (es) |
| IT (1) | IT1243492B (es) |
| MX (1) | MX173905B (es) |
| NO (1) | NO303582B1 (es) |
Families Citing this family (26)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| IT1238234B (it) * | 1989-12-21 | 1993-07-12 | Eniricerche Spa | Polimeri contenenti unita' (met) acrilammido maloniche |
| IT1237794B (it) * | 1989-12-21 | 1993-06-17 | Eniricerche Spa | Copolimeri acrilammidici contenenti unita' (met) acrilammido benzendicarbossiliche |
| DE4221863C2 (de) * | 1992-07-03 | 1997-04-17 | Stockhausen Chem Fab Gmbh | Copolymere der Allyliminodiessigsäure mit ungesättigten Carbonsäuren und deren Verwendung als Komplexbildner, Peroxidstabilisatoren, Builder in Wasch- und Reinigungsmitteln und Dispergatoren |
| US5789350A (en) * | 1996-02-12 | 1998-08-04 | Phillips Petroleum Company | Compositions and processes for treating hydrocarbon-bearing formations |
| US6166103A (en) * | 1998-12-21 | 2000-12-26 | Atlantic Richfield Company | Aqueous gelable compositions with delayed gelling times |
| US6539427B1 (en) | 1999-06-29 | 2003-03-25 | Cisco Technology, Inc. | Dynamically adaptive network element in a feedback-based data network |
| ITBO20000745A1 (it) * | 2000-12-27 | 2002-06-27 | Carmelo Protopapa | Procedimento per la reticolazione di un polimero o di un copolimero acrilico o acrilderivato e del relativo polimero acrilico ottenuto |
| US7138472B2 (en) * | 2001-01-29 | 2006-11-21 | Nalco Company | High molecular weight polymers containing pendant salicylic acid groups for clarifying bayer process liquors |
| US20030027964A1 (en) * | 2001-01-29 | 2003-02-06 | Murat Quadir | High molecular weight polymers containing pendant salicylic acid groups |
| WO2002078454A1 (es) * | 2001-03-29 | 2002-10-10 | Francisco Pujol Alcover | Metodo de dosificacion y maquina dosificadora de masas y pastas alimentarias correspondiente |
| AU2002327694A1 (en) * | 2001-09-26 | 2003-04-07 | Claude E. Cooke Jr. | Method and materials for hydraulic fracturing of wells |
| US7104327B2 (en) * | 2003-08-19 | 2006-09-12 | Halliburton Engery Services, Inc. | Methods of fracturing high temperature subterranean zones and foamed fracturing fluids therefor |
| US7723099B2 (en) | 2003-09-10 | 2010-05-25 | Abbott Point Of Care Inc. | Immunoassay device with immuno-reference electrode |
| US8129317B2 (en) * | 2005-05-02 | 2012-03-06 | Halliburton Energy Services, Inc. | Viscosified treatment fluids comprising polycarboxylic acid gelling agents and associated methods |
| US7325615B2 (en) * | 2005-05-02 | 2008-02-05 | Halliburton Energy Services, Inc. | Viscosified treatment fluids comprising polycarboxylic acid gelling agents and associated methods |
| US7857078B2 (en) * | 2007-05-29 | 2010-12-28 | Baker Hughes Incorporated | Cutting tools and methods of making the same |
| MX2014005131A (es) | 2011-10-28 | 2014-05-27 | Dow Global Technologies Llc | Metodo de fabricacion de celulas fotovoltaicas a base de calcogenuro. |
| AU2013374213B2 (en) | 2013-01-18 | 2016-09-22 | Conocophillips Company | Nanogels for delayed gelation |
| US10851286B2 (en) | 2014-11-19 | 2020-12-01 | Conocophillips Company | Delayed gelation of polymers |
| JP6843859B2 (ja) * | 2015-12-02 | 2021-03-17 | サウジ アラビアン オイル カンパニー | 高温架橋された破砕流体 |
| US11326092B2 (en) | 2020-08-24 | 2022-05-10 | Saudi Arabian Oil Company | High temperature cross-linked fracturing fluids with reduced friction |
| US12071589B2 (en) | 2021-10-07 | 2024-08-27 | Saudi Arabian Oil Company | Water-soluble graphene oxide nanosheet assisted high temperature fracturing fluid |
| US12025589B2 (en) | 2021-12-06 | 2024-07-02 | Saudi Arabian Oil Company | Indentation method to measure multiple rock properties |
| US12012550B2 (en) | 2021-12-13 | 2024-06-18 | Saudi Arabian Oil Company | Attenuated acid formulations for acid stimulation |
| CN115057964B (zh) * | 2022-07-11 | 2025-01-28 | 中国石油大学(华东) | 一种用于高温压裂液的交联剂的制备方法 |
| CN116289204B (zh) * | 2023-04-12 | 2023-10-13 | 潮州市丹辉婚纱礼服有限公司 | 一种抗静电透湿涤纶面料的制备方法和应用 |
Family Cites Families (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR1411715A (fr) * | 1964-06-09 | 1965-09-24 | Nobel Bozel | Amides alpha, beta-éthyléniques nu-alcoylolées et leur procédé de fabrication |
| FR1458364A (fr) * | 1965-08-26 | 1966-03-04 | Nobel Bozel | Nouvelles laques acryliques thermodurcissables |
| US3331773A (en) * | 1966-07-22 | 1967-07-18 | Grace W R & Co | Process for inhibiting precipitation in water |
| US4137182A (en) * | 1977-06-20 | 1979-01-30 | Standard Oil Company (Indiana) | Process for fracturing well formations using aqueous gels |
| DE2967637D1 (en) * | 1978-09-21 | 1987-01-02 | Eastman Kodak Co | Addition polymers and metal complexes thereof |
| US4193796A (en) * | 1978-12-20 | 1980-03-18 | Eastman Kodak Company | Polymers for use in image receiving elements for metallizable dyes in image transfer film units |
| DE2920377A1 (de) * | 1979-05-19 | 1980-12-04 | Basf Ag | Binde-, impraegnier- und ueberzugsmittel auf basis einer waessrigen dispersion eines amidgruppenhaltigen copolymerisats |
| US4228257A (en) * | 1979-06-06 | 1980-10-14 | Eastman Kodak Company | Polymers for use in image receiving elements for metallizable dyes in image transfer film units |
| US4360425A (en) * | 1981-09-14 | 1982-11-23 | American Cyanamid Company | Low molecular weight copolymers and terpolymers as depressants in mineral ore flotation |
| US4610305A (en) * | 1983-06-02 | 1986-09-09 | The New Mexico Institute Of Mining And Technology | Oilfield flooding polymer |
| US4649183A (en) * | 1985-06-12 | 1987-03-10 | University Of Southern Mississippi | Calcium-tolerant N-substituted acrylamides as thickeners for aqueous systems |
| US4686456A (en) * | 1985-06-18 | 1987-08-11 | Kabushiki Kaisha Toshiba | Memory test circuit |
| US4774283A (en) * | 1987-03-02 | 1988-09-27 | Air Products And Chemicals, Inc. | Nonwoven binders of vinyl acetate/ethylene/self-crosslinking monomers/acrylamide copolymers having improved blocking resistance |
| JPH075680B2 (ja) * | 1987-07-03 | 1995-01-25 | 三井石油化学工業株式会社 | 硬化性組成物 |
| US4844970A (en) * | 1988-01-12 | 1989-07-04 | Air Products And Chemicals, Inc. | Zirconium (III) salts as cure co-catalysts for nonwoven binders comprising acrylamidoglycolic acid |
| IT1229217B (it) * | 1989-03-31 | 1991-07-26 | Eniricerche S P A Agip S P A | Composizione acquosa gelificabile e suo impiego nei procedimenti di recupero assistito del petrolio. |
-
1990
- 1990-11-23 IT IT02217390A patent/IT1243492B/it active IP Right Grant
-
1991
- 1991-11-16 DK DK91202985.7T patent/DK0487153T3/da active
- 1991-11-16 ES ES91202985T patent/ES2068492T3/es not_active Expired - Lifetime
- 1991-11-16 EP EP91202985A patent/EP0487153B1/en not_active Expired - Lifetime
- 1991-11-18 US US07/793,524 patent/US5256315A/en not_active Expired - Lifetime
- 1991-11-21 NO NO914555A patent/NO303582B1/no unknown
- 1991-11-21 ES ES19919103497U patent/ES1019384Y/es not_active Expired - Fee Related
- 1991-11-22 BR BR919105087A patent/BR9105087A/pt not_active IP Right Cessation
- 1991-11-22 JP JP3332924A patent/JPH04330932A/ja not_active Withdrawn
- 1991-11-22 MX MX9102188A patent/MX173905B/es unknown
- 1991-11-22 CA CA002056074A patent/CA2056074C/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| CA2056074A1 (en) | 1992-05-24 |
| NO303582B1 (no) | 1998-08-03 |
| CA2056074C (en) | 2002-07-23 |
| EP0487153B1 (en) | 1995-01-11 |
| NO914555L (no) | 1992-05-25 |
| JPH04330932A (ja) | 1992-11-18 |
| IT9022173A0 (it) | 1990-11-23 |
| IT1243492B (it) | 1994-06-15 |
| DK0487153T3 (da) | 1995-05-01 |
| ES1019384U (es) | 1992-03-16 |
| ES1019384Y (es) | 1992-11-01 |
| BR9105087A (pt) | 1992-06-23 |
| EP0487153A1 (en) | 1992-05-27 |
| NO914555D0 (no) | 1991-11-21 |
| MX173905B (es) | 1994-04-07 |
| IT9022173A1 (it) | 1992-05-23 |
| US5256315A (en) | 1993-10-26 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| ES2068492T3 (es) | Composiciones acuosas gelificables que contienen polimeros con grupos funcionales quelantes especiales que sirven para extraer petroleo de un campo petrolifero. | |
| ES8502670A1 (es) | Procedimiento para preparar derivados de 3-bencilidenalcanfor | |
| ES2176272T3 (es) | Compuestos que contienen organopolisiloxanos con base acuosa, procedimiento para su produccion asi como su uso. | |
| ES2059491T3 (es) | Derivados de indol con anillos condensados. | |
| CO4440491A1 (es) | Geles estables a temperaturas ultra elevadas | |
| ATE47502T1 (de) | Fuellmittel aus geliertem oel. | |
| CO5150159A1 (es) | Derivados de 4-arilquinolin-2-ona 3-substituida como moduladores de los canales de potasio | |
| AR030425A1 (es) | Polimero soluble en agua, modificado estructuralmente, metodo de preparacion, metodo de floculacion de una suspension acuosa de materia organica, metodo para clarificar agua de desperdicio y metodo para incrementar la retencion y drenaje | |
| ES2173508T3 (es) | (benzofurano)naftopiranos, composiciones y matrices (co)polimeras que los contienen. | |
| MX9303238A (es) | Dispersion o solucion reticulable a la temperatura ambiente con hidroxilaminas o eteres oximetricos. | |
| MX9302016A (es) | Proceso y composicion para alterar la permeabilidad de formaciones subterraneas. | |
| ES2183847T3 (es) | Composiciones a base de agua que contienen organopolisiloxano, procedimiento para su elaboracion y su uso. | |
| ES2093413T3 (es) | Compuestos quimicos. | |
| ES8404184A1 (es) | Un procedimiento para la prepracion de nuevos derivados de acidos 2-carbamimidoil-1-,carbadestiapen-2-en-3-carboxilados. | |
| MX9202996A (es) | Diazabiciclo-(3-3-1)nonanos. | |
| ES2110233T3 (es) | Calix(4)arenos-coronas, su procedimiento de preparacion y su utilizacion para la extraccion selectiva de cesio y actinidos. | |
| AR026486A1 (es) | Naftopiranos que tienen un sustituyente perfluoroalquilado en la posicion 5, preparacion y composiciones y matrices que los contienen | |
| ES8202560A1 (es) | Un procedimiento para la preparacion de una 3-yodometil-ce- falosporina | |
| MX167277B (es) | Composicion gelificable | |
| IT1055128B (it) | Derivati del 4.4 divinil stilbene impiegabili come azzurranti ottici e loro preparazione | |
| DK438879A (da) | Fremgangsmaade til fremstilling af saccharider | |
| IT1261927B (it) | Composizioni acquose di coloranti solubili in solvente e relativo procedimento di preparazione. | |
| IT7925790A0 (it) | Composizioni polimeriche autoestinguenti. | |
| ES8604102A1 (es) | Procedimiento de preparacion de nuevos derivados a-etilben- zol con un grupo dialquilaminoalcoxi sustituido y de sus sa-les de adicion acidas y amonicas cuaternarias | |
| ES8601850A1 (es) | Un procedimiento para preparar derivados de ciclobutano |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| FG2A | Definitive protection |
Ref document number: 487153 Country of ref document: ES |