ES2130209T3 - Procedimiento para la obtencion y empleo de polisuccinimida, acido poliarparaginico y sus sales. - Google Patents
Procedimiento para la obtencion y empleo de polisuccinimida, acido poliarparaginico y sus sales.Info
- Publication number
- ES2130209T3 ES2130209T3 ES93120055T ES93120055T ES2130209T3 ES 2130209 T3 ES2130209 T3 ES 2130209T3 ES 93120055 T ES93120055 T ES 93120055T ES 93120055 T ES93120055 T ES 93120055T ES 2130209 T3 ES2130209 T3 ES 2130209T3
- Authority
- ES
- Spain
- Prior art keywords
- acid
- polyarparaginic
- polysuccinimide
- salts
- procedure
- 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
- 239000002253 acid Substances 0.000 title abstract 4
- -1 AMMONIA ACID ANHYDRIDE Chemical class 0.000 abstract 1
- 229910021529 ammonia Inorganic materials 0.000 abstract 1
- QGZKDVFQNNGYKY-UHFFFAOYSA-N ammonia Natural products N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 abstract 1
- 238000006243 chemical reaction Methods 0.000 abstract 1
- 230000007062 hydrolysis Effects 0.000 abstract 1
- 238000006460 hydrolysis reaction Methods 0.000 abstract 1
- 238000006116 polymerization reaction Methods 0.000 abstract 1
- 150000003839 salts Chemical class 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
- C08G69/00—Macromolecular compounds obtained by reactions forming a carboxylic amide link in the main chain of the macromolecule
- C08G69/02—Polyamides derived from amino-carboxylic acids or from polyamines and polycarboxylic acids
- C08G69/08—Polyamides derived from amino-carboxylic acids or from polyamines and polycarboxylic acids derived from amino-carboxylic acids
- C08G69/10—Alpha-amino-carboxylic acids
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01N—PRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTS THEREOF; BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES OR AS HERBICIDES; PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS
- A01N37/00—Biocides, pest repellants or attractants, or plant growth regulators containing organic compounds containing a carbon atom having three bonds to hetero atoms with at the most two bonds to halogen, e.g. carboxylic acids
- A01N37/44—Biocides, pest repellants or attractants, or plant growth regulators containing organic compounds containing a carbon atom having three bonds to hetero atoms with at the most two bonds to halogen, e.g. carboxylic acids containing at least one carboxylic group or a thio analogue, or a derivative thereof, and a nitrogen atom attached to the same carbon skeleton by a single or double bond, this nitrogen atom not being a member of a derivative or of a thio analogue of a carboxylic group, e.g. amino-carboxylic acids
- A01N37/46—N-acyl derivatives
-
- 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
- C08G73/00—Macromolecular compounds obtained by reactions forming a linkage containing nitrogen with or without oxygen or carbon in the main chain of the macromolecule, not provided for in groups C08G12/00 - C08G71/00
- C08G73/06—Polycondensates having nitrogen-containing heterocyclic rings in the main chain of the macromolecule
- C08G73/10—Polyimides; Polyester-imides; Polyamide-imides; Polyamide acids or similar polyimide precursors
- C08G73/1092—Polysuccinimides
-
- 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
- C09K15/00—Anti-oxidant compositions; Compositions inhibiting chemical change
- C09K15/04—Anti-oxidant compositions; Compositions inhibiting chemical change containing organic compounds
- C09K15/20—Anti-oxidant compositions; Compositions inhibiting chemical change containing organic compounds containing nitrogen and oxygen
-
- 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
- C09K23/00—Use of substances as emulsifying, wetting, dispersing, or foam-producing agents
- C09K23/12—Sulfonates of aromatic or alkylated aromatic compounds
-
- 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
- C09K23/00—Use of substances as emulsifying, wetting, dispersing, or foam-producing agents
- C09K23/16—Amines or polyamines
-
- C—CHEMISTRY; METALLURGY
- C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
- C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
- C11D3/00—Other compounding ingredients of detergent compositions covered in group C11D1/00
- C11D3/16—Organic compounds
- C11D3/37—Polymers
- C11D3/3703—Macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
- C11D3/3719—Polyamides or polyimides
-
- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23F—NON-MECHANICAL REMOVAL OF METALLIC MATERIAL FROM SURFACE; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL; MULTI-STEP PROCESSES FOR SURFACE TREATMENT OF METALLIC MATERIAL INVOLVING AT LEAST ONE PROCESS PROVIDED FOR IN CLASS C23 AND AT LEAST ONE PROCESS COVERED BY SUBCLASS C21D OR C22F OR CLASS C25
- C23F11/00—Inhibiting corrosion of metallic material by applying inhibitors to the surface in danger of corrosion or adding them to the corrosive agent
- C23F11/08—Inhibiting corrosion of metallic material by applying inhibitors to the surface in danger of corrosion or adding them to the corrosive agent in other liquids
- C23F11/10—Inhibiting corrosion of metallic material by applying inhibitors to the surface in danger of corrosion or adding them to the corrosive agent in other liquids using organic inhibitors
- C23F11/173—Macromolecular compounds
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Materials Engineering (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Health & Medical Sciences (AREA)
- Polymers & Plastics (AREA)
- Wood Science & Technology (AREA)
- Medicinal Chemistry (AREA)
- Pest Control & Pesticides (AREA)
- Environmental Sciences (AREA)
- Metallurgy (AREA)
- Agronomy & Crop Science (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Plant Pathology (AREA)
- Dentistry (AREA)
- General Health & Medical Sciences (AREA)
- Zoology (AREA)
- Mechanical Engineering (AREA)
- Macromolecular Compounds Obtained By Forming Nitrogen-Containing Linkages In General (AREA)
- Polyamides (AREA)
- Preventing Corrosion Or Incrustation Of Metals (AREA)
- Emulsifying, Dispersing, Foam-Producing Or Wetting Agents (AREA)
- Detergent Compositions (AREA)
- Anti-Oxidant Or Stabilizer Compositions (AREA)
- Agricultural Chemicals And Associated Chemicals (AREA)
- Fertilizers (AREA)
- Enzymes And Modification Thereof (AREA)
- Measuring Or Testing Involving Enzymes Or Micro-Organisms (AREA)
Abstract
EL ACIDO POLIASPARAGINICO ES PRODUCIDO POR LA CONVERSION DE ANHIDRIDO DE ACIDO MALEICO Y AMONIACO EN ACIDO AMIDOMALEICO, LA POLIMERIZACION DE ESTE Y LA CORRESPONDIENTE HIDROLISIS PARA DAR ACIDO POLIASPARAGIN O UNA SAL DEL MISMO.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE4244031A DE4244031A1 (de) | 1992-12-24 | 1992-12-24 | Verfahren zur Herstellung und Verwendung von Polyasparaginsäure und ihrer Salze |
Publications (1)
Publication Number | Publication Date |
---|---|
ES2130209T3 true ES2130209T3 (es) | 1999-07-01 |
Family
ID=6476509
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
ES93120055T Expired - Lifetime ES2130209T3 (es) | 1992-12-24 | 1993-12-13 | Procedimiento para la obtencion y empleo de polisuccinimida, acido poliarparaginico y sus sales. |
ES97118624T Expired - Lifetime ES2175244T3 (es) | 1992-12-24 | 1993-12-13 | Empleo de acido poliasparaginico y de sus sales. |
Family Applications After (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
ES97118624T Expired - Lifetime ES2175244T3 (es) | 1992-12-24 | 1993-12-13 | Empleo de acido poliasparaginico y de sus sales. |
Country Status (5)
Country | Link |
---|---|
US (1) | US5543490A (es) |
EP (2) | EP0821054B1 (es) |
JP (1) | JP3178955B2 (es) |
DE (3) | DE4244031A1 (es) |
ES (2) | ES2130209T3 (es) |
Families Citing this family (32)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0612784B1 (de) * | 1993-02-22 | 1998-11-11 | Bayer Ag | Verfahren zur Herstellung von Polysuccinimid und Polyasparaginsäure |
DE4425952A1 (de) * | 1994-07-21 | 1996-01-25 | Bayer Ag | Verfahren zur Herstellung von Polysuccinimid oder Maleinamidsäure |
US5531934A (en) * | 1994-09-12 | 1996-07-02 | Rohm & Haas Company | Method of inhibiting corrosion in aqueous systems using poly(amino acids) |
DE4439193A1 (de) * | 1994-11-03 | 1996-05-09 | Bayer Ag | Mischung zur Korrosionshemmung von Metallen |
KR960022448A (ko) * | 1994-12-21 | 1996-07-18 | 미우라 아끼라 | 폴리아스파라긴산 및 그의 염의 제조방법 |
DE19516399A1 (de) * | 1995-05-04 | 1996-11-07 | Bayer Ag | Verfahren zur Herstellung von Polymeren mit wiederkehrenden Succinyleinheiten |
DE19603052A1 (de) * | 1996-01-29 | 1997-07-31 | Bayer Ag | Verfahren zur Herstellung von Polymeren mit wiederkehrenden Succinyl-Einheiten |
DE19607852A1 (de) * | 1996-03-01 | 1997-09-04 | Agfa Gevaert Ag | Fotografisches Silberhalogenidmaterial |
DE19706901A1 (de) * | 1997-02-21 | 1998-08-27 | Bayer Ag | Verfahren zur Durchführung von Polykondensationsreaktionen |
DE19709024A1 (de) * | 1997-03-06 | 1998-09-10 | Bayer Ag | Polyasparaginsäure Homo- und Copolymere, ihre biotechnologische Herstellung und Verwendung |
US5981691A (en) * | 1997-04-23 | 1999-11-09 | University Of South Alabama | Imide-free and mixed amide/imide thermal synthesis of polyaspartate |
US6599989B2 (en) | 1998-03-03 | 2003-07-29 | Nippon Skokubai Co., Ltd. | Water-absorbent agents containing polycarboxylic amine chelating agents |
DE19809359A1 (de) * | 1998-03-05 | 1999-09-09 | Bayer Ag | Gleichzeitiges Waschen und Bleichen nativer Fasern und textiler Erzeugnisse daraus |
DE19815025A1 (de) * | 1998-04-03 | 1999-10-07 | Bayer Ag | Verfahren zur Herstellung von Polymeren mit wiederkehrenden Succinyleinheiten unter Verwendung von Katalysatoren |
JP4942235B2 (ja) * | 1998-04-15 | 2012-05-30 | 株式会社日本触媒 | 吸水剤、吸収体、吸収性物品、および吸収特性の測定方法 |
AT408103B (de) * | 1998-06-24 | 2001-09-25 | Aware Chemicals Llc | Verfahren zur vorbehandlung eines metallischen werkstückes für eine lackierung |
DE19845639A1 (de) | 1998-10-05 | 2000-04-06 | Bayer Ag | Verfahren zur Herstellung von biologisch abbaubaren Polymeren mit wiederkehrenden Succinyleinheiten |
US6174988B1 (en) * | 1999-04-07 | 2001-01-16 | National Starch & Chemical Company | Use of polyamino acid salts in water-borne adhesive applications |
US6365706B1 (en) | 2000-06-21 | 2002-04-02 | Mississippi Chemical Corporation | Process for production of polyasparagine and the high nitrogen content polymer formed thereby |
DE10042498A1 (de) * | 2000-08-30 | 2002-04-11 | Bayer Ag | Polyasparaginsäure-Konzentrationsbestimmung mittels Fluorometrie |
KR20030093183A (ko) * | 2000-10-26 | 2003-12-06 | 일렉트릭 파워 리서치 인스티튜트 | 유익한 바이오필름을 사용하는 부식 방지 방법 |
CN1318477C (zh) * | 2004-01-15 | 2007-05-30 | 同济大学 | 生物可降解缓蚀阻垢剂聚天冬氨酸的制备方法 |
US7351355B2 (en) * | 2004-11-29 | 2008-04-01 | Toda Kogyo Corporation | Purifying agent for purifying soil or ground water, process for producing the same, and method for purifying soil or ground water using the same |
WO2006096477A1 (en) * | 2005-03-04 | 2006-09-14 | The Procter & Gamble Company | Automatic dishwashing composition with corrosion inhibitors |
CN102753606B (zh) | 2010-02-18 | 2015-01-07 | 三井化学株式会社 | 聚天冬氨酸前体聚合物及聚天冬氨酸盐的制造方法 |
CN102250343B (zh) * | 2011-05-05 | 2012-11-28 | 西安交通大学 | 一种采用负载型碱金属氟化物催化合成聚天冬氨酸酯的方法 |
US9144538B2 (en) | 2013-02-08 | 2015-09-29 | The Procter & Gamble Company | Cosmetic compositions containing substituted azole and methods for alleviating the signs of photoaged skin |
US9138393B2 (en) | 2013-02-08 | 2015-09-22 | The Procter & Gamble Company | Cosmetic compositions containing substituted azole and methods for improving the appearance of aging skin |
CN104671848A (zh) * | 2013-11-28 | 2015-06-03 | 天津工业大学 | 微生物复合肥料及其生产方法 |
AT517146A2 (de) | 2015-05-13 | 2016-11-15 | Technische Universität Wien | Verfahren zur Herstellung von kristallinen Polyimiden |
EP3778846B1 (en) * | 2018-03-30 | 2023-10-25 | Mitsui Chemicals, Inc. | Anti-redeposition agent and detergent composition |
CN114805808B (zh) * | 2022-05-31 | 2023-12-08 | 杨凌德尔生物科技有限公司 | 一种聚天冬氨酸钾的制备方法及其在植物生长促进剂中的应用 |
Family Cites Families (17)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2459964A (en) * | 1946-10-08 | 1949-01-25 | Beck Koller And Company Englan | Manufacture of maleamic acid |
US3846380A (en) * | 1972-10-31 | 1974-11-05 | M Teranishi | Polyamino acid derivatives and compositions containing same |
JPS60203636A (ja) * | 1984-03-28 | 1985-10-15 | Fuso Kagaku Kogyo Kk | コポリアミノ酸の製造法 |
JPS61218634A (ja) * | 1985-03-25 | 1986-09-29 | Fuso Kagaku Kogyo Kk | ポリアミノ酸類の製造法 |
DE3626672A1 (de) * | 1986-08-07 | 1988-02-11 | Bayer Ag | Polyasparaginamidsaeure |
JPS63270735A (ja) * | 1987-04-30 | 1988-11-08 | Koei Chem Co Ltd | 熱硬化性ポリマ−の製造法 |
US4957704A (en) * | 1988-08-09 | 1990-09-18 | Pennzoil Products Company | Method of corrosion inhibition using hydrocarbyl polycarboxylates compositions |
ES2152210T3 (es) * | 1990-02-06 | 2001-02-01 | Solutia Inc | Composiciones y procedimientos para la inhibicion de la corrosion de metales ferrosos. |
IT1240684B (it) * | 1990-04-26 | 1993-12-17 | Tecnopart Srl | Poliamminoacidi quali builders per formulazioni detergenti |
US5057597A (en) * | 1990-07-03 | 1991-10-15 | Koskan Larry P | Process for the manufacture of anhydro polyamino acids and polyamino acids |
DE4023463C2 (de) * | 1990-07-24 | 1999-05-27 | Roehm Gmbh | Verfahren zur Molekulargewichtserhöhung bei der Herstellung von Polysuccinimid |
US5221733A (en) * | 1991-02-22 | 1993-06-22 | Donlar Corporation | Manufacture of polyaspartic acids |
US5288783A (en) * | 1992-05-14 | 1994-02-22 | Srchem Incorporated | Preparation of salt of polyaspartic acid by high temperature reaction |
US5319145A (en) * | 1992-07-10 | 1994-06-07 | Rohm And Haas Company | Method for preparing polysuccinimides with a rotary tray dryer |
US5296578A (en) * | 1992-09-18 | 1994-03-22 | Donlar Corporation | Production of polysuccinimide and polyaspartic acid from maleic anhydride and ammonia |
US5219952A (en) * | 1992-09-18 | 1993-06-15 | Donlar Corporation | Production of high molecular weight polysuccinimide and high molecular weight polyaspartic acid from maleic anhydride and ammonia |
US5393868A (en) * | 1992-10-13 | 1995-02-28 | Rohm And Haas Company | Production of polysuccinimide by thermal polymerization of maleamic acid |
-
1992
- 1992-12-24 DE DE4244031A patent/DE4244031A1/de not_active Withdrawn
-
1993
- 1993-12-13 EP EP97118624A patent/EP0821054B1/de not_active Expired - Lifetime
- 1993-12-13 DE DE59310276T patent/DE59310276D1/de not_active Expired - Fee Related
- 1993-12-13 EP EP93120055A patent/EP0604813B1/de not_active Expired - Lifetime
- 1993-12-13 DE DE59309513T patent/DE59309513D1/de not_active Expired - Fee Related
- 1993-12-13 ES ES93120055T patent/ES2130209T3/es not_active Expired - Lifetime
- 1993-12-13 ES ES97118624T patent/ES2175244T3/es not_active Expired - Lifetime
- 1993-12-17 US US08/168,847 patent/US5543490A/en not_active Expired - Fee Related
- 1993-12-20 JP JP34453893A patent/JP3178955B2/ja not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
ES2175244T3 (es) | 2002-11-16 |
EP0821054A3 (de) | 1998-03-18 |
EP0604813A1 (de) | 1994-07-06 |
EP0821054B1 (de) | 2002-04-03 |
DE59309513D1 (de) | 1999-05-20 |
EP0604813B1 (de) | 1999-04-14 |
JP3178955B2 (ja) | 2001-06-25 |
JPH06298930A (ja) | 1994-10-25 |
DE4244031A1 (de) | 1994-06-30 |
EP0821054A2 (de) | 1998-01-28 |
DE59310276D1 (de) | 2002-05-08 |
US5543490A (en) | 1996-08-06 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
ES2130209T3 (es) | Procedimiento para la obtencion y empleo de polisuccinimida, acido poliarparaginico y sus sales. | |
LV12189A (lv) | Panemiens N-amino-1-hidroksialkiliden-1,1-bifosfon-skabju iegusanai | |
AR004122A1 (es) | Procedimiento para la preparacion de un compuesto de dihaloazolopirimidinas y un procedimiento para la preparacion de un intermediario de dicho procedimiento | |
ATE415394T1 (de) | Zwischeprodukte zur herstellung von retroviralen protease-hemmern | |
ATE156698T1 (de) | Inhibitierung des haarwuchses | |
CO4700469A1 (es) | 3-[4-(4(4-cianofenil)-1-piperazinanil)butil]-5]ciannoindol y su proceso de obtencion . | |
ES2106236T3 (es) | Acido rs-tioctico con una morfologia nueva. | |
ES2066153T3 (es) | Preparacion de iminodiacetonitrilo, partiendo del glicolonitrilo. | |
ES2063499T3 (es) | Procedimiento para la preparacion del acido cis-beta-fenilglicidico-(2r,3r). | |
ES2172549T3 (es) | Nuevas sales por adicion de acidos de cefem, cristalinas, y procedimiento para su preparacion. | |
ES2110050T3 (es) | Soluciones acuosas concentradas de sales de acido alquil eter carboxilico y procedimiento para la preparacion de las mismas. | |
GB1515012A (en) | Bisulphite terminated oligomers | |
ES525463A1 (es) | Procedimiento para la preparacion de acidos alfa-arilalcanoicos | |
ES2090075T3 (es) | Procedimiento para la preparacion de diastereoisomeros opticamente puros de compuestos de tetrahidrofolato. | |
IT1102481B (it) | Mezzo per la coltura di microrganismi utile in particolare per la rapida indentificazione di funghi patogeni | |
ES2127573T3 (es) | Procedimiento para la obtencion de terpolimeros. | |
ATE47861T1 (de) | Verfahren zur herstellung von nphosphonomethylglycin. | |
ATE165078T1 (de) | Umesterung und andere umsetzungsreaktionen von säurederivaten mit einer amidinbase | |
ES2089654T3 (es) | Procedimiento para purificar amidas de acidos grasos. | |
ES2153124T3 (es) | Nuevos derivados de acidos carboxilicos, su obtencion y empleo. | |
ES2083623T3 (es) | Procedimiento microbiologico para la preparacion de acido 5-hidroxi-pirazinocarboxilico. | |
ATE61330T1 (de) | Verfahren zur herstellung von betahydroxybutyrs|ure und ihren salzen durch hydrolyse der oligomere der betahydroxybutyrs|ure in basischem milieu. | |
ES2085730T3 (es) | Procedimiento de obtencion del acido orto-hidroximandelico y sus sales. | |
ES2011038B3 (es) | Procedimiento para la obtencion de sales de cinc, plomo o cinc/plomo de acidos carboxilicos y su empleo como protectores contra la corrosion. | |
ES2153191T3 (es) | Procedimiento para la obtencion de amidinas. |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
FG2A | Definitive protection |
Ref document number: 604813 Country of ref document: ES |