ES2142369T3 - Procedimiento para la obtencion de polimeros que contienen acido asparaginico. - Google Patents
Procedimiento para la obtencion de polimeros que contienen acido asparaginico.Info
- Publication number
- ES2142369T3 ES2142369T3 ES94116550T ES94116550T ES2142369T3 ES 2142369 T3 ES2142369 T3 ES 2142369T3 ES 94116550 T ES94116550 T ES 94116550T ES 94116550 T ES94116550 T ES 94116550T ES 2142369 T3 ES2142369 T3 ES 2142369T3
- Authority
- ES
- Spain
- Prior art keywords
- reaction
- derivative
- stage
- procedure
- educate
- 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 3
- 238000000034 method Methods 0.000 title abstract 2
- CKLJMWTZIZZHCS-UHFFFAOYSA-N D-OH-Asp Natural products OC(=O)C(N)CC(O)=O CKLJMWTZIZZHCS-UHFFFAOYSA-N 0.000 title 1
- CKLJMWTZIZZHCS-REOHCLBHSA-N L-aspartic acid Chemical compound OC(=O)[C@@H](N)CC(O)=O CKLJMWTZIZZHCS-REOHCLBHSA-N 0.000 title 1
- 238000006243 chemical reaction Methods 0.000 abstract 5
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 abstract 2
- 238000006116 polymerization reaction Methods 0.000 abstract 2
- 150000008065 acid anhydrides Chemical class 0.000 abstract 1
- 229910021529 ammonia Inorganic materials 0.000 abstract 1
- 150000001735 carboxylic acids Chemical class 0.000 abstract 1
- VZCYOOQTPOCHFL-UPHRSURJSA-N maleic acid Chemical class OC(=O)\C=C/C(O)=O VZCYOOQTPOCHFL-UPHRSURJSA-N 0.000 abstract 1
- 239000011541 reaction mixture Substances 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J19/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
- B01J19/24—Stationary reactors without moving elements inside
- B01J19/2415—Tubular reactors
- B01J19/243—Tubular reactors spirally, concentrically or zigzag wound
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F5/00—Softening water; Preventing scale; Adding scale preventatives or scale removers to water, e.g. adding sequestering agents
- C02F5/08—Treatment of water with complexing chemicals or other solubilising agents for softening, scale prevention or scale removal, e.g. adding sequestering agents
- C02F5/10—Treatment of water with complexing chemicals or other solubilising agents for softening, scale prevention or scale removal, e.g. adding sequestering agents using organic substances
- C02F5/12—Treatment of water with complexing chemicals or other solubilising agents for softening, scale prevention or scale removal, e.g. adding sequestering agents using organic substances containing nitrogen
-
- 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
-
- 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
- C09K23/00—Use of substances as emulsifying, wetting, dispersing, or foam-producing agents
- C09K23/16—Amines or polyamines
-
- 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
- C09K8/52—Compositions for preventing, limiting or eliminating depositions, e.g. for cleaning
- C09K8/528—Compositions for preventing, limiting or eliminating depositions, e.g. for cleaning inorganic depositions, e.g. sulfates or carbonates
-
- 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J2219/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
- B01J2219/00049—Controlling or regulating processes
- B01J2219/00051—Controlling the temperature
- B01J2219/00074—Controlling the temperature by indirect heating or cooling employing heat exchange fluids
- B01J2219/00087—Controlling the temperature by indirect heating or cooling employing heat exchange fluids with heat exchange elements outside the reactor
- B01J2219/00094—Jackets
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J2219/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
- B01J2219/00049—Controlling or regulating processes
- B01J2219/00051—Controlling the temperature
- B01J2219/00074—Controlling the temperature by indirect heating or cooling employing heat exchange fluids
- B01J2219/00087—Controlling the temperature by indirect heating or cooling employing heat exchange fluids with heat exchange elements outside the reactor
- B01J2219/00103—Controlling the temperature by indirect heating or cooling employing heat exchange fluids with heat exchange elements outside the reactor in a heat exchanger separate from the reactor
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J2219/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
- B01J2219/00049—Controlling or regulating processes
- B01J2219/00051—Controlling the temperature
- B01J2219/00159—Controlling the temperature controlling multiple zones along the direction of flow, e.g. pre-heating and after-cooling
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J2219/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
- B01J2219/00049—Controlling or regulating processes
- B01J2219/00164—Controlling or regulating processes controlling the flow
- B01J2219/00166—Controlling or regulating processes controlling the flow controlling the residence time inside the reactor vessel
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J2219/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
- B01J2219/00049—Controlling or regulating processes
- B01J2219/00177—Controlling or regulating processes controlling the pH
Abstract
EN EL PROCEDIMIENTO PARA LA ELABORACION CONTINUA DE POLIMEROS CON UNIDADES SUCINIL SE MEZCLA ANHIDRIDO DE ACIDO MALEINICO O UN DERIVADO DE EL COMO EDUCTO A CON AMONIACO O UN COMPUESTO QUE LIBERA AMONIACO O AMIDAS DE ACIDO CARBOXILICO COMO EDUCTO B Y SE TRANSFORMAN EN UNA PRIMERA ETAPA DE REACCION EXOTERMICA PARA LA OBTENCION DE DERIVADO DEL ACIDO MALEINICO DE BAJO PESO MOLECULAR QUE CONTIENE N. ESTE DERIVADO SE POLIMERIZA A CONTINUACION EN UNA SEGUNDA ETAPA DE REACCION. CON ELLO SE CONSIGUE LA REACCION DEL EDUCTO (A,B) EN UNA PRIMERA ETAPA DE REACCION DE FORMA AMPLIAMENTE ADIABATICA. EL CALOR DE REACCION LIBERADO CON ELLO SE UTILIZA PARA LA APLICACION EN LA MEZCLA DE REACCION SOBRE LA TEMPERATURA DE POLIMERIZACION Y EN LA SEGUNDA ETAPA DE REACCION DEL DERIVADO DE BAJO PESO MOLECULAR QUE CONTIENE N BAJO LA OBTENCION DE UN POLIMERO CON UNIDADES SUCINIL DE RETROCESO AL MENOS PARCIALMENTE PARA SU POLIMERIZACION.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE4337337A DE4337337C2 (de) | 1993-11-02 | 1993-11-02 | Verfahren zur Herstellung von Polysuccinimid |
DE4425951A DE4425951A1 (de) | 1994-07-21 | 1994-07-21 | Verfahren zur Herstellung von Asparaginsäure-haltigen Polymeren |
Publications (1)
Publication Number | Publication Date |
---|---|
ES2142369T3 true ES2142369T3 (es) | 2000-04-16 |
Family
ID=25930903
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
ES94116550T Expired - Lifetime ES2142369T3 (es) | 1993-11-02 | 1994-10-20 | Procedimiento para la obtencion de polimeros que contienen acido asparaginico. |
Country Status (8)
Country | Link |
---|---|
US (1) | US5594077A (es) |
EP (2) | EP0650995B1 (es) |
JP (1) | JP3418887B2 (es) |
KR (1) | KR100338577B1 (es) |
CN (1) | CN1052018C (es) |
AT (1) | ATE188497T1 (es) |
DE (1) | DE59409048D1 (es) |
ES (1) | ES2142369T3 (es) |
Families Citing this family (42)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0650995B1 (de) * | 1993-11-02 | 2000-01-05 | Bayer Ag | Verfahren zur Herstellung von Asparaginsäure-haltigen Polymeren |
EP0737704B1 (de) * | 1995-04-11 | 1999-08-25 | Bayer Ag | Verfahren zur Entfärbung von N-haltigen Polymeren |
DE19525365A1 (de) * | 1995-07-12 | 1997-01-16 | Bayer Ag | Papierhilfsmittel mit wiederkehrenden Succinyleinheiten |
DE19530203A1 (de) * | 1995-08-17 | 1997-02-20 | Bayer Ag | Verwendung von Polymeren mit wiederkehrenden Succinyleinheiten als Frostschutzmittel |
DE19603027A1 (de) * | 1996-01-29 | 1997-07-31 | Baker Hughes Ltd | Verwendung von mit Aminen hydrophob modifizierten Polyasparaginsäuren als Korrosionsinhibitoren bei der Erdöl- und Erdgasgewinnung |
DE19603052A1 (de) * | 1996-01-29 | 1997-07-31 | Bayer Ag | Verfahren zur Herstellung von Polymeren mit wiederkehrenden Succinyl-Einheiten |
DE19603053A1 (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 |
DE19636190A1 (de) * | 1996-09-06 | 1998-03-12 | Bayer Ag | Verfahren zur Herstellung von Polymeren mit wiederkehrenden Succinyleinheiten |
DE19706901A1 (de) * | 1997-02-21 | 1998-08-27 | Bayer Ag | Verfahren zur Durchführung von Polykondensationsreaktionen |
US5981691A (en) * | 1997-04-23 | 1999-11-09 | University Of South Alabama | Imide-free and mixed amide/imide thermal synthesis of polyaspartate |
US6136950A (en) * | 1997-09-23 | 2000-10-24 | Mbt Holding Ag | Highly efficient cement dispersants |
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 |
US6906164B2 (en) | 2000-12-07 | 2005-06-14 | Eastman Chemical Company | Polyester process using a pipe reactor |
CN1900139B (zh) * | 2000-12-07 | 2012-11-14 | 奇派特石化有限公司 | 制造缩聚物的方法 |
KR20020051955A (ko) * | 2000-12-21 | 2002-07-02 | 조민호 | 폴리아스파르틱산 중합체 조성물 |
EP1387978A1 (en) * | 2001-05-17 | 2004-02-11 | Imperial College Innovations Limited | Production and processing plant with a rigid pipe portion curving in three dimensions |
EP1506250A1 (en) * | 2002-05-07 | 2005-02-16 | Aquero Company LLC | Copolymers of amino acids and methods of their production |
US20060287499A1 (en) * | 2002-05-07 | 2006-12-21 | Aquero Company | Copolymers of amino acids, methods of their production, and uses thereof |
US7074879B2 (en) * | 2003-06-06 | 2006-07-11 | Eastman Chemical Company | Polyester process using a pipe reactor |
US7332548B2 (en) * | 2004-03-04 | 2008-02-19 | Eastman Chemical Company | Process for production of a polyester product from alkylene oxide and carboxylic acid |
US20080139780A1 (en) * | 2006-12-07 | 2008-06-12 | Debruin Bruce Roger | Polyester production system employing short residence time esterification |
US7649109B2 (en) * | 2006-12-07 | 2010-01-19 | Eastman Chemical Company | Polyester production system employing recirculation of hot alcohol to esterification zone |
US7943094B2 (en) * | 2006-12-07 | 2011-05-17 | Grupo Petrotemex, S.A. De C.V. | Polyester production system employing horizontally elongated esterification vessel |
US7863477B2 (en) | 2007-03-08 | 2011-01-04 | Eastman Chemical Company | Polyester production system employing hot paste to esterification zone |
US7842777B2 (en) * | 2007-07-12 | 2010-11-30 | Eastman Chemical Company | Sloped tubular reactor with divided flow |
US7872089B2 (en) | 2007-07-12 | 2011-01-18 | Eastman Chemical Company | Multi-level tubular reactor with internal tray |
US7868130B2 (en) * | 2007-07-12 | 2011-01-11 | Eastman Chemical Company | Multi-level tubular reactor with vertically spaced segments |
US7847053B2 (en) * | 2007-07-12 | 2010-12-07 | Eastman Chemical Company | Multi-level tubular reactor with oppositely extending segments |
US7829653B2 (en) * | 2007-07-12 | 2010-11-09 | Eastman Chemical Company | Horizontal trayed reactor |
US7868129B2 (en) * | 2007-07-12 | 2011-01-11 | Eastman Chemical Company | Sloped tubular reactor with spaced sequential trays |
US7872090B2 (en) * | 2007-07-12 | 2011-01-18 | Eastman Chemical Company | Reactor system with optimized heating and phase separation |
US7858730B2 (en) | 2007-07-12 | 2010-12-28 | Eastman Chemical Company | Multi-level tubular reactor with dual headers |
DE102009048304A1 (de) * | 2009-10-05 | 2011-04-07 | Bk Giulini Gmbh | Die Verwendung eines biologisch abbaubaren Dispergiermittels |
US20130190463A1 (en) | 2010-09-27 | 2013-07-25 | Aquapharm Chemicals Pvt Limited | Water soluble biodegradable polymer and process for preparation thereof |
CN102796263B (zh) * | 2012-08-28 | 2014-05-28 | 华北电力大学(保定) | 微波半溶剂法合成聚天冬氨酸 |
CN103113584A (zh) * | 2013-02-28 | 2013-05-22 | 赵金姝 | 一种用于油田用三元复合驱的环境友好型聚天冬氨酸的制备方法 |
CN103776948B (zh) * | 2014-03-04 | 2015-06-10 | 新疆维吾尔自治区产品质量监督检验研究院 | 高效液相色谱检测多肽尿素中聚天冬氨酸的方法 |
CN109749722B (zh) * | 2017-11-02 | 2021-11-02 | 中国石油化工股份有限公司 | 一种自润滑液体状支化聚合物提切剂及其制备方法和油基钻井液 |
CN108358804A (zh) * | 2018-02-07 | 2018-08-03 | 四川大学 | 连续高效生产高纯度n-取代马来酰胺酸的方法 |
WO2020070544A1 (en) * | 2018-10-03 | 2020-04-09 | Italmatch Chemicals S.P.A. | Detergent polymer and composition |
Family Cites Families (40)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2306918A (en) * | 1940-02-15 | 1942-12-29 | Research Corp | Amine reaction product |
US2459964A (en) * | 1946-10-08 | 1949-01-25 | Beck Koller And Company Englan | Manufacture of maleamic acid |
US3052655A (en) * | 1958-08-01 | 1962-09-04 | Sidney W Fox | Thermal polymerization of amino acid mixtures containing aspartic acid or a thermal precursor of aspartic acid |
JPS4851995A (es) * | 1971-11-01 | 1973-07-21 | ||
JPS5111604B2 (es) * | 1972-08-03 | 1976-04-13 | ||
US3846380A (en) * | 1972-10-31 | 1974-11-05 | M Teranishi | Polyamino acid derivatives and compositions containing same |
US4169924A (en) * | 1977-06-09 | 1979-10-02 | Gaf Corporation | Preparation of linear cyclic polyimides from latices |
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 |
DE3724460A1 (de) * | 1986-07-29 | 1988-02-04 | Lion Corp | Hautfreundliche netzmittelmasse |
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 |
US4996292A (en) * | 1989-06-30 | 1991-02-26 | Fox Sidney W | Self-sealing artificial skin comprising copoly-alpha-amino acid |
US5219986A (en) * | 1989-10-13 | 1993-06-15 | Cygnus Corporation | Polyanhydroaspartic acid and method of dry manufacture of polymers |
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 |
DE69122039T2 (de) * | 1990-11-16 | 1997-02-06 | Mitsubishi Chem Corp | Verfahren zum Herstellen von hochreinem Glaspulver |
US5221733A (en) * | 1991-02-22 | 1993-06-22 | Donlar Corporation | Manufacture of polyaspartic acids |
US5284512A (en) * | 1991-03-06 | 1994-02-08 | Donlar Corporation | Polyaspartic acid and its salts for dispersing suspended solids |
US5152902A (en) * | 1991-03-19 | 1992-10-06 | Donlar Corporation | Polyaspartic acid as a calcium carbonate and a calcium phosphate inhibitor |
US5116513A (en) * | 1991-03-19 | 1992-05-26 | Donlar Corporation | Polyaspartic acid as a calcium sulfate and a barium sulfate inhibitor |
EP0549968A1 (de) * | 1991-12-20 | 1993-07-07 | Hoechst Aktiengesellschaft | Grenzflächenaktive Verbindungen auf Basis modifizierter Novolakoxalklylate, ihre Herstellung und ihre Verwendung |
US5268437A (en) * | 1992-01-22 | 1993-12-07 | Rohm And Haas Company | High temperature aqueous polymerization process |
EP0561452A1 (en) * | 1992-03-20 | 1993-09-22 | Unilever N.V. | Machine dishwashing composition containing polyaminoacids as builders |
US5288783A (en) * | 1992-05-14 | 1994-02-22 | Srchem Incorporated | Preparation of salt of polyaspartic acid by high temperature reaction |
US5371177A (en) * | 1992-07-10 | 1994-12-06 | Rohm And Haas Company | Process for preparing polysuccinimides from maleamic acid |
US5319145A (en) * | 1992-07-10 | 1994-06-07 | Rohm And Haas Company | Method for preparing polysuccinimides with a rotary tray dryer |
US5292864A (en) * | 1992-08-07 | 1994-03-08 | Srchem Incorporated | Decolorizing polyaspartic acid polymers |
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 |
FR2696473A1 (fr) * | 1992-10-06 | 1994-04-08 | Rhone Poulenc Chimie | Composition détergente incorporant un biopolymère polyimide hydrolysable en milieu lessiviel. |
US5393868A (en) * | 1992-10-13 | 1995-02-28 | Rohm And Haas Company | Production of polysuccinimide by thermal polymerization of maleamic acid |
GB9226942D0 (en) * | 1992-12-24 | 1993-02-17 | Procter & Gamble | Dispersing agent |
DE4300020A1 (de) * | 1993-01-02 | 1994-07-07 | Basf Ag | Verfahren zur Herstellung von Polymerisaten der Asparaginsäure und ihre Verwendung |
FR2700539B1 (fr) * | 1993-01-20 | 1995-03-10 | Rhone Poulenc Chimie | Procédé de préparation d'acide maléamique. |
US5292858A (en) * | 1993-03-16 | 1994-03-08 | Srchem Incorporated | Method of production of copolymers of polyamino acids |
US5410017A (en) * | 1993-05-21 | 1995-04-25 | Rohm And Haas Company | Continuous thermal polycondensation process for preparing polypeptide polymers |
EP0650995B1 (de) * | 1993-11-02 | 2000-01-05 | Bayer Ag | Verfahren zur Herstellung von Asparaginsäure-haltigen Polymeren |
US5493004A (en) * | 1994-04-08 | 1996-02-20 | Bayer Ag | Process for the preparation of polysuccinimide |
-
1994
- 1994-10-20 EP EP94116550A patent/EP0650995B1/de not_active Expired - Lifetime
- 1994-10-20 DE DE59409048T patent/DE59409048D1/de not_active Expired - Fee Related
- 1994-10-20 ES ES94116550T patent/ES2142369T3/es not_active Expired - Lifetime
- 1994-10-20 EP EP99108290A patent/EP0931787A1/de not_active Withdrawn
- 1994-10-20 AT AT94116550T patent/ATE188497T1/de not_active IP Right Cessation
- 1994-10-25 US US08/328,868 patent/US5594077A/en not_active Expired - Fee Related
- 1994-10-31 JP JP28866994A patent/JP3418887B2/ja not_active Expired - Fee Related
- 1994-11-02 CN CN94119924A patent/CN1052018C/zh not_active Expired - Fee Related
- 1994-11-02 KR KR1019940028864A patent/KR100338577B1/ko not_active IP Right Cessation
Also Published As
Publication number | Publication date |
---|---|
JP3418887B2 (ja) | 2003-06-23 |
JPH07238162A (ja) | 1995-09-12 |
EP0650995B1 (de) | 2000-01-05 |
CN1052018C (zh) | 2000-05-03 |
CN1108265A (zh) | 1995-09-13 |
EP0650995A2 (de) | 1995-05-03 |
EP0931787A1 (de) | 1999-07-28 |
ATE188497T1 (de) | 2000-01-15 |
EP0650995A3 (de) | 1995-11-22 |
KR950014178A (ko) | 1995-06-15 |
DE59409048D1 (de) | 2000-02-10 |
US5594077A (en) | 1997-01-14 |
KR100338577B1 (ko) | 2002-10-11 |
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