ES493706A0 - Procedimiento para la obtencion de dispersiones acuosas de oligo- y poliuretanos - Google Patents

Procedimiento para la obtencion de dispersiones acuosas de oligo- y poliuretanos

Info

Publication number
ES493706A0
ES493706A0 ES493706A ES493706A ES493706A0 ES 493706 A0 ES493706 A0 ES 493706A0 ES 493706 A ES493706 A ES 493706A ES 493706 A ES493706 A ES 493706A ES 493706 A0 ES493706 A0 ES 493706A0
Authority
ES
Spain
Prior art keywords
oligo
polyurethanes
procedure
aqueous dispersions
obtaining aqueous
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.)
Granted
Application number
ES493706A
Other languages
English (en)
Other versions
ES8107267A1 (es
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Bayer AG
Original Assignee
Bayer AG
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Bayer AG filed Critical Bayer AG
Publication of ES493706A0 publication Critical patent/ES493706A0/es
Publication of ES8107267A1 publication Critical patent/ES8107267A1/es
Expired legal-status Critical Current

Links

Classifications

    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08JWORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J3/00Processes of treating or compounding macromolecular substances
    • C08J3/02Making solutions, dispersions, lattices or gels by other methods than by solution, emulsion or suspension polymerisation techniques
    • C08J3/03Making solutions, dispersions, lattices or gels by other methods than by solution, emulsion or suspension polymerisation techniques in aqueous media
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08GMACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
    • C08G18/00Polymeric products of isocyanates or isothiocyanates
    • C08G18/06Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
    • C08G18/08Processes
    • C08G18/0804Manufacture of polymers containing ionic or ionogenic groups
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08KUse of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K5/00Use of organic ingredients
    • C08K5/02Halogenated hydrocarbons
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08KUse of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K5/00Use of organic ingredients
    • C08K5/54Silicon-containing compounds
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08LCOMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L1/00Compositions of cellulose, modified cellulose or cellulose derivatives
    • C08L1/08Cellulose derivatives
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08LCOMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L61/00Compositions of condensation polymers of aldehydes or ketones; Compositions of derivatives of such polymers
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08LCOMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L63/00Compositions of epoxy resins; Compositions of derivatives of epoxy resins
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08LCOMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L75/00Compositions of polyureas or polyurethanes; Compositions of derivatives of such polymers
    • C08L75/04Polyurethanes
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08LCOMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L83/00Compositions of macromolecular compounds obtained by reactions forming in the main chain of the macromolecule a linkage containing silicon with or without sulfur, nitrogen, oxygen or carbon only; Compositions of derivatives of such polymers
    • C08L83/04Polysiloxanes
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08LCOMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L89/00Compositions of proteins; Compositions of derivatives thereof
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08LCOMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L91/00Compositions of oils, fats or waxes; Compositions of derivatives thereof
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08LCOMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L93/00Compositions of natural resins; Compositions of derivatives thereof
    • CCHEMISTRY; METALLURGY
    • C09DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09DCOATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
    • C09D175/00Coating compositions based on polyureas or polyurethanes; Coating compositions based on derivatives of such polymers
    • C09D175/04Polyurethanes
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08JWORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J2375/00Characterised by the use of polyureas or polyurethanes; Derivatives of such polymers
    • C08J2375/04Polyurethanes

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Health & Medical Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Dispersion Chemistry (AREA)
  • Manufacturing & Machinery (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Materials Engineering (AREA)
  • Wood Science & Technology (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Polyurethanes Or Polyureas (AREA)
  • Paints Or Removers (AREA)
ES493706A 1979-07-26 1980-07-24 Procedimiento para la obtencion de dispersiones acuosas de oligo- y poliuretanos Expired ES8107267A1 (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19792930410 DE2930410A1 (de) 1979-07-26 1979-07-26 Verfahren zur herstellung von stabilen waessrigen dispersionen von oligo- oder polyurethanen, sowie ihre verwendung als beschichtungsmittel fuer flexible oder nicht- flexible substrate

Publications (2)

Publication Number Publication Date
ES493706A0 true ES493706A0 (es) 1981-10-01
ES8107267A1 ES8107267A1 (es) 1981-10-01

Family

ID=6076880

Family Applications (1)

Application Number Title Priority Date Filing Date
ES493706A Expired ES8107267A1 (es) 1979-07-26 1980-07-24 Procedimiento para la obtencion de dispersiones acuosas de oligo- y poliuretanos

Country Status (6)

Country Link
US (1) US4306998A (es)
EP (1) EP0024296B1 (es)
JP (1) JPS5620022A (es)
CA (1) CA1154187A (es)
DE (2) DE2930410A1 (es)
ES (1) ES8107267A1 (es)

Families Citing this family (62)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3048085A1 (de) * 1980-12-19 1982-07-22 Bayer Ag, 5090 Leverkusen Dispersionen von sulfonatgruppen aufweisenden polymeren, ein verfahren zu ihrer herstellung, sowie ihre verwendung als beschichtungsmittel
SE8303950L (sv) * 1982-07-14 1984-01-15 Norwood Ind Inc Polymerkomposition
DE3230851A1 (de) * 1982-08-19 1984-02-23 Basf Farben + Fasern Ag, 2000 Hamburg Waessrige dispersion auf der basis eines polyurethankunstharzes
EP0154678B2 (de) * 1984-01-27 1998-12-09 Byk-Chemie GmbH Als Dispergiermittel geeignete Additionsverbindungen, Verfahren zu ihrer Herstellung, ihre Verwendung und damit beschichtete Feststoffe
US4590265A (en) * 1984-02-17 1986-05-20 Eastman Kodak Company Carboxylated cellulose ester and manufacture thereof
DE3417265A1 (de) * 1984-05-10 1985-11-14 Bayer Ag, 5090 Leverkusen Polyurethan-dispersionen und ihre verwendung als finish-mittel
DE3641494A1 (de) * 1986-12-04 1988-06-09 Bayer Ag In wasser loesliche oder dispergierbare poylurethane, ein verfahren zu ihrer herstellung und ihre verwendung zur beschichtung beliebiger substrate
DK77287D0 (da) * 1987-02-16 1987-02-16 Novopan Traeindustri Spaanplade og fremgangsmaade til fremstilling deraf
US4826894A (en) * 1987-05-19 1989-05-02 Mobay Corporation Aqueous polyurethane-ureas dispersions and their use for the production of coatings having improved humidity resistance
DE3727252A1 (de) * 1987-08-15 1989-02-23 Bayer Ag Verfahren zur herstellung von waessrigen polyurethandispersionen
GB2209758B (en) * 1987-09-14 1990-12-12 Ici America Inc Aqueous dispersions
US4925885A (en) * 1988-01-12 1990-05-15 Mobay Corporation Aqueous compositions for use in the production of crosslinked polyurethanes
US5272012A (en) * 1989-06-23 1993-12-21 C. R. Bard, Inc. Medical apparatus having protective, lubricious coating
US5026607A (en) * 1989-06-23 1991-06-25 C. R. Bard, Inc. Medical apparatus having protective, lubricious coating
ES2043289T3 (es) * 1989-09-25 1993-12-16 Schneider Usa Inc La extrusion de capas multiples como procedimiento para hacer balones de angioplastia.
US5195969A (en) 1991-04-26 1993-03-23 Boston Scientific Corporation Co-extruded medical balloons and catheter using such balloons
US5306319A (en) * 1993-05-12 1994-04-26 Minnesota Mining And Manufacturing Company Surface treating articles and methods of making same
US6896842B1 (en) 1993-10-01 2005-05-24 Boston Scientific Corporation Medical device balloons containing thermoplastic elastomers
EP0738168B1 (en) * 1993-10-01 2004-01-21 Boston Scientific Corporation Medical device balloons containing thermoplastic elastomers
AU703812B2 (en) * 1994-05-11 1999-04-01 Bayer Aktiengesellschaft Auxiliaries for paper finishing
US6558798B2 (en) 1995-02-22 2003-05-06 Scimed Life Systems, Inc. Hydrophilic coating and substrates coated therewith having enhanced durability and lubricity
US6231600B1 (en) 1995-02-22 2001-05-15 Scimed Life Systems, Inc. Stents with hybrid coating for medical devices
US6468649B1 (en) 1995-02-22 2002-10-22 Scimed Life Systems, Inc. Antimicrobial adhesion surface
US5702754A (en) * 1995-02-22 1997-12-30 Meadox Medicals, Inc. Method of providing a substrate with a hydrophilic coating and substrates, particularly medical devices, provided with such coatings
DE19546744A1 (de) * 1995-12-14 1997-06-26 Bader Gmbh & Co Lederpflegemittel
DE19607672C1 (de) * 1996-02-29 1998-03-12 Herberts Gmbh Verfahren zur Herstellung einer Bindemittelkomponente für wäßrige Zweikomponenten-Überzugsmittel und deren Verwendung
US6166165A (en) * 1996-12-18 2000-12-26 Witco Corporation Polyurethane synthesis from functional group terminated polymers containing sulfonate groups
US6001906A (en) 1997-08-04 1999-12-14 Golumbic; Harvey J. Water based plasticizer free poly urethane-wax coating & repair composition & method
US6579570B1 (en) 2000-05-04 2003-06-17 Kimberly-Clark Worldwide, Inc. Ion-sensitive, water-dispersible polymers, a method of making same and items using same
US6713414B1 (en) 2000-05-04 2004-03-30 Kimberly-Clark Worldwide, Inc. Ion-sensitive, water-dispersible polymers, a method of making same and items using same
US6423804B1 (en) 1998-12-31 2002-07-23 Kimberly-Clark Worldwide, Inc. Ion-sensitive hard water dispersible polymers and applications therefor
US7276459B1 (en) 2000-05-04 2007-10-02 Kimberly-Clark Worldwide, Inc. Ion-sensitive, water-dispersible polymers, a method of making same and items using same
DE19924415A1 (de) * 1999-05-27 2000-11-30 Herberts Gmbh & Co Kg Wäßrige Bindemitteldispersionen, Überzugsmittel und deren Verwendung
US6258121B1 (en) 1999-07-02 2001-07-10 Scimed Life Systems, Inc. Stent coating
DE19936634A1 (de) * 1999-08-04 2001-02-15 Wolff Walsrode Ag Cellulose-Substanz-enthaltendes Überzugsmittel sowie dessen Verwendung in Lacken
DE19936635A1 (de) * 1999-08-04 2001-02-15 Wolff Walsrode Ag Wäßrige Überzugsmittel und dessen Verwendung in Lacken
US6362302B1 (en) 1999-11-29 2002-03-26 Carl E. Boddie Method and compositions for spray molding polyurethane three dimensional objects
US6653406B1 (en) 2000-05-04 2003-11-25 Kimberly Clark Worldwide, Inc. Ion-sensitive, water-dispersible polymers, a method of making same and items using same
US6835678B2 (en) 2000-05-04 2004-12-28 Kimberly-Clark Worldwide, Inc. Ion sensitive, water-dispersible fabrics, a method of making same and items using same
US6815502B1 (en) 2000-05-04 2004-11-09 Kimberly-Clark Worldwide, Inc. Ion-sensitive, water-dispersable polymers, a method of making same and items using same
US6683143B1 (en) 2000-05-04 2004-01-27 Kimberly Clark Worldwide, Inc. Ion-sensitive, water-dispersible polymers, a method of making same and items using same
US6548592B1 (en) 2000-05-04 2003-04-15 Kimberly-Clark Worldwide, Inc. Ion-sensitive, water-dispersible polymers, a method of making same and items using same
US6444214B1 (en) 2000-05-04 2002-09-03 Kimberly-Clark Worldwide, Inc. Ion-sensitive, water-dispersible polymers, a method of making same and items using same
US6429261B1 (en) 2000-05-04 2002-08-06 Kimberly-Clark Worldwide, Inc. Ion-sensitive, water-dispersible polymers, a method of making same and items using same
US6599848B1 (en) 2000-05-04 2003-07-29 Kimberly-Clark Worldwide, Inc. Ion-sensitive, water-dispersible polymers, a method of making same and items using same
US7101612B2 (en) 2000-05-04 2006-09-05 Kimberly Clark Worldwide, Inc. Pre-moistened wipe product
IT1318558B1 (it) * 2000-06-08 2003-08-27 Ausimont Spa Poliuretani a basso coefficiente di attrito.
US6576702B2 (en) 2000-07-20 2003-06-10 Noveon Ip Holdings Corp. Plasticized waterborne polyurethane dispersions and manufacturing process
US6586529B2 (en) 2001-02-01 2003-07-01 Kimberly-Clark Worldwide, Inc. Water-dispersible polymers, a method of making same and items using same
US6897168B2 (en) 2001-03-22 2005-05-24 Kimberly-Clark Worldwide, Inc. Water-dispersible, cationic polymers, a method of making same and items using same
US6828014B2 (en) 2001-03-22 2004-12-07 Kimberly-Clark Worldwide, Inc. Water-dispersible, cationic polymers, a method of making same and items using same
US6908966B2 (en) 2001-03-22 2005-06-21 Kimberly-Clark Worldwide, Inc. Water-dispersible, cationic polymers, a method of making same and items using same
US7169199B2 (en) * 2002-11-25 2007-01-30 3M Innovative Properties Company Curable emulsions and abrasive articles therefrom
US6979713B2 (en) * 2002-11-25 2005-12-27 3M Innovative Properties Company Curable compositions and abrasive articles therefrom
MXPA04000247A (es) * 2003-01-10 2004-11-01 Ppg Ind Ohio Inc Revestimientos secundarios y filamentos de fibra de vidrio que tienen un revestimiento secundario.
GB0420112D0 (en) * 2004-09-10 2004-10-13 Avecia Ltd Polyurethanes
US9101949B2 (en) 2005-08-04 2015-08-11 Eilaz Babaev Ultrasonic atomization and/or seperation system
US7896539B2 (en) 2005-08-16 2011-03-01 Bacoustics, Llc Ultrasound apparatus and methods for mixing liquids and coating stents
DE102006012354A1 (de) * 2006-03-17 2007-09-20 Bayer Materialscience Ag Wässrige Dispersionen auf Basis von Nitrocellulose-Polyurethan-Teilchen
US7753285B2 (en) * 2007-07-13 2010-07-13 Bacoustics, Llc Echoing ultrasound atomization and/or mixing system
US7780095B2 (en) * 2007-07-13 2010-08-24 Bacoustics, Llc Ultrasound pumping apparatus
EP2028204A1 (de) * 2007-08-22 2009-02-25 Bayer MaterialScience AG NC-PU Dispersionen mit beschleunigter Trocknung

Family Cites Families (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1669346U (de) 1953-10-21 1953-12-31 August Schaal O H G Aufsetz- und abnehmbare schwingtischeinrichtung fuer brot- und aufschnittmaschinen.
DE1694175U (de) 1954-10-11 1955-03-03 Gruenol Chem Fab C Luchtenberg Drehverschluss fuer flaschen.
DE1495745C3 (de) 1963-09-19 1978-06-01 Bayer Ag, 5090 Leverkusen Verfahren zur Herstellung wäßriger, emulgatorfreier Polyurethan-Latices
DE1694175A1 (de) * 1967-08-01 1971-08-26 Bayer Ag Verfahren zur Herstellung von Kunststoffen aus waessrigen Polyurethan-Dispersionen
DE1770068C3 (de) * 1968-03-27 1981-01-15 Bayer Ag, 5090 Leverkusen Verfahren zur Herstellung von Polyurethanen Bayer AG, 5090 Leverkusen
US3988278A (en) * 1970-08-17 1976-10-26 Minnesota Mining And Manufacturing Company Stable polymer latex and process for making same
US3816168A (en) * 1971-07-12 1974-06-11 Rohm & Haas Nitrocellulose-modified urethane coating compositions and their use in finishing leather
BE786838A (fr) * 1971-07-29 1973-01-29 Bayer Ag Finissage du cuir
BE791082A (fr) * 1971-11-09 1973-05-08 Bayer Ag Compositions pour le finissage du cuir naturel et artificiel
US3923713A (en) * 1972-07-26 1975-12-02 American Cyanamid Co Non-yellowing textile adhesive
US4048001A (en) * 1973-01-10 1977-09-13 American Cyanamid Company Polyurethane textile adhesive
CA1066856A (en) 1973-07-24 1979-11-27 Guenter Eckert Leather dressing
US4108814A (en) * 1974-09-28 1978-08-22 Bayer Aktiengesellschaft Aqueous polyurethane dispersions from solvent-free prepolymers using sulfonate diols
DE2542767A1 (de) * 1975-09-25 1977-04-07 Kepec Chem Fab Gmbh Mittel fuer die zurichtung von leder und lederaustauschstoffen
BR7606383A (pt) * 1975-09-26 1977-06-14 Bayer Ag Processo para a preparacao de poliuretanos
DE2555534C3 (de) 1975-12-10 1981-01-08 Bayer Ag, 5090 Leverkusen In Wasser dispergierbare Polyurethane

Also Published As

Publication number Publication date
JPS5620022A (en) 1981-02-25
CA1154187A (en) 1983-09-20
DE3063317D1 (en) 1983-07-07
DE2930410A1 (de) 1981-02-12
EP0024296A1 (de) 1981-03-04
ES8107267A1 (es) 1981-10-01
US4306998A (en) 1981-12-22
EP0024296B1 (de) 1983-05-18

Similar Documents

Publication Publication Date Title
ES493706A0 (es) Procedimiento para la obtencion de dispersiones acuosas de oligo- y poliuretanos
ES498225A0 (es) Procedimiento para la preparacion de sulfonilureas
ES491913A0 (es) Procedimiento para la preparacion de betainas
ES495179A0 (es) Procedimiento para la preparacion de polieterpoliaminas
ES493774A0 (es) Procedimiento para la preparacion de 3-amino-sidnoniminas
AR227525A1 (es) Procedimiento para obtener derivados de acidos ciclohexancarboxilicos
ES489578A0 (es) Procedimiento para la obtencion de dispersiones de caucho fluibles estables
ES487746A0 (es) Procedimiento para la preparacion de bis-estiril-benceno
ES490420A0 (es) Procedimiento para la preparacion de diestirilbifenilos
ES490421A0 (es) Procedimiento para la preparacion de diestirilbencenos
ES491527A0 (es) Procedimiento para la preparacion de tiazoliliden-oxo-pro- pionitrilos
ES494856A0 (es) Procedimiento para la preparacion de n-aril-n-acil-3-amino- oxazolidin-2-onas
ES493960A0 (es) Procedimiento para la obtencion de dispersiones acuosas de material sintetico
AR220806A1 (es) Procedimiento para la fabricacion de vellones tejidos
MX151832A (es) Un procedimiento mejorado para la preparacion de un aldehido-eter
ES499914A0 (es) Procedimiento para la obtencion de derivados del amino-tia- diazolilo
AR225159A1 (es) Procedimiento para la preparacion de l-alpha-gliceril-fosforilcolina
ES490538A0 (es) Procedimiento para la produccion de extractos acuosos de he-parina
ES497444A0 (es) Procedimiento para la obtencion de derivados de 2-amino-eta-nol
ES497659A0 (es) Procedimiento para la preparacion de sulfonilureas
ES493001A0 (es) Procedimiento para la preparacion de metilglioxal
ES493956A0 (es) Procedimiento para la obtencion de compuestos de antraquino-na-azometina
ES493417A0 (es) Procedimiento para la preparacion de 2-isopropilamino-piri- midina
ES497099A0 (es) Procedimiento para la preparacion de sulfonilureas
ES491871A0 (es) Procedimiento para la obtencion de derivados de guanidina

Legal Events

Date Code Title Description
FD1A Patent lapsed

Effective date: 19970303