ES2138270T3 - Procedimiento para la obtencion de mezclas, constituidas por difenilmetanodiisocianatos y polifenil-polimetilen-poliisocianatos, con un indice de color de yodo reducido y con un contenido de cloro reducido. - Google Patents
Procedimiento para la obtencion de mezclas, constituidas por difenilmetanodiisocianatos y polifenil-polimetilen-poliisocianatos, con un indice de color de yodo reducido y con un contenido de cloro reducido.Info
- Publication number
- ES2138270T3 ES2138270T3 ES96110026T ES96110026T ES2138270T3 ES 2138270 T3 ES2138270 T3 ES 2138270T3 ES 96110026 T ES96110026 T ES 96110026T ES 96110026 T ES96110026 T ES 96110026T ES 2138270 T3 ES2138270 T3 ES 2138270T3
- Authority
- ES
- Spain
- Prior art keywords
- reduced
- weight
- polymethylene
- polyphenyl
- 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
Classifications
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C263/00—Preparation of derivatives of isocyanic acid
- C07C263/10—Preparation of derivatives of isocyanic acid by reaction of amines with carbonyl halides, e.g. with phosgene
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C263/00—Preparation of derivatives of isocyanic acid
- C07C263/18—Separation; Purification; Stabilisation; Use of additives
- C07C263/20—Separation; Purification
-
- 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
- C08G18/70—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the isocyanates or isothiocyanates used
- C08G18/72—Polyisocyanates or polyisothiocyanates
- C08G18/74—Polyisocyanates or polyisothiocyanates cyclic
- C08G18/76—Polyisocyanates or polyisothiocyanates cyclic aromatic
- C08G18/7657—Polyisocyanates or polyisothiocyanates cyclic aromatic containing two or more aromatic rings
- C08G18/7664—Polyisocyanates or polyisothiocyanates cyclic aromatic containing two or more aromatic rings containing alkylene polyphenyl 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
- C08G18/70—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the isocyanates or isothiocyanates used
- C08G18/72—Polyisocyanates or polyisothiocyanates
- C08G18/80—Masked polyisocyanates
- C08G18/8003—Masked polyisocyanates masked with compounds having at least two groups containing active hydrogen
- C08G18/8006—Masked polyisocyanates masked with compounds having at least two groups containing active hydrogen with compounds of C08G18/32
- C08G18/8009—Masked polyisocyanates masked with compounds having at least two groups containing active hydrogen with compounds of C08G18/32 with compounds of C08G18/3203
- C08G18/8012—Masked polyisocyanates masked with compounds having at least two groups containing active hydrogen with compounds of C08G18/32 with compounds of C08G18/3203 with diols
- C08G18/8019—Masked aromatic polyisocyanates
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Health & Medical Sciences (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
- Polyurethanes Or Polyureas (AREA)
Abstract
EL OBJETO DE LA INVENCION ES UN PROCEDIMIENTO PARA OBTENER MEZCLAS DE DIFENIL-METANO-DIISOCIANATOS Y POLIFENIL-POLIMETILENOPOLIISOCIANATOS (MDI BRUTO) CON UNA MEDIDA CALORIMETRICA REDUCIDA A BASE DE YODO Y UN CONTENIDO REDUCIDO EN CLORO HACIENDO REACCIONAR LAS CORRESPONDIENTES MEZCLAS DE DIFENIL-METANODIAMINAS Y POLIFENIL-POLIMETILENO-POLIAMINAS CON FOSGENO EN PRESENCIA DE AL MENOS UN DISOLVENTE ORGANICO INERTE A ELEVADA TEMPERATURA, INCORPORANDO DESPUES DE ACABAR LA FOSGENIZACION DE LA MEZCLA REACTIVA EN PRESENCIA O AUSENCIA DEL FOSGENO, UNA MEZCLA DE AGUA Y AL MENOS UN POLIOXI-ALQUILEN-ALCOHOL MONO- O POLIVALENTE, PREFERIBLEMENTE CON UNA FUNCIONALIDAD DE 2 A 3, Y VENTAJOSAMENTE CON UN NUMERO DE HIDROXILOS DE 20 A 1800, EN UNA CANTIDAD EFECTIVA, QUE SE COMPONE DE MAS DE 0,01 A 0,3 % EN PESO DE AGUA (I) Y 0,5 A 5 % EN PESO DE UN POLIOXI-ALQUILEN-ALCOHOL (II), CADA UNO CON RELACION AL PESO DEL MDI BRUTO; DESPUES DE HABER SEPARADO EL FOSGENO SOBRANTE O LOS RESTOS DE FOSGENO QUE QUEDEN Y EL DISOLVENTE ORGANICO INERTE, SE AÑADE AL PRODUCTO OPCIONALMENTE HASTA EL 5 % EN PESO, CON RELACION AL PESO DE MDI BRUTO, AL MENOS UN ANTIOXIDANTE A BASE DE FENOL Y/O FOSFITO DE ARILO, Y SE TRATA TERMICAMENTE LA MEZCLA REACTIVA.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19523851A DE19523851A1 (de) | 1995-06-30 | 1995-06-30 | Verfahren zur Herstellung von Mischungen aus Diphenylmethan-diisocyanaten und Polyphenyl-polymethylen-polyisocyanaten mit einer verminderten Iodfarbzahl und einem reduzierten Chlorgehalt |
Publications (1)
Publication Number | Publication Date |
---|---|
ES2138270T3 true ES2138270T3 (es) | 2000-01-01 |
Family
ID=7765669
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
ES96110026T Expired - Lifetime ES2138270T3 (es) | 1995-06-30 | 1996-06-21 | Procedimiento para la obtencion de mezclas, constituidas por difenilmetanodiisocianatos y polifenil-polimetilen-poliisocianatos, con un indice de color de yodo reducido y con un contenido de cloro reducido. |
Country Status (11)
Country | Link |
---|---|
US (1) | US6229043B1 (es) |
EP (1) | EP0751118B1 (es) |
JP (1) | JP3901244B2 (es) |
KR (1) | KR970001315A (es) |
CN (1) | CN1087312C (es) |
AT (1) | ATE185554T1 (es) |
CA (1) | CA2180285A1 (es) |
DE (2) | DE19523851A1 (es) |
DK (1) | DK0751118T3 (es) |
ES (1) | ES2138270T3 (es) |
MX (1) | MX9602508A (es) |
Families Citing this family (15)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
ZA965340B (en) * | 1995-06-30 | 1997-01-27 | Interdigital Tech Corp | Code division multiple access (cdma) communication system |
DE19804915A1 (de) | 1998-02-07 | 1999-08-12 | Basf Ag | Verfahren zur Herstellung von Methylendi(phenylamin) und Methylendi(phenylisocyanat) |
DE19817691A1 (de) * | 1998-04-21 | 1999-10-28 | Basf Ag | Verfahren zur Herstellung von Mischungen aus Diphenylmehandiisocyanaten und Polyphenylen-polymethylen-polyisocyanaten mit vermindertem Gehalt an chlorierten Nebenprodukten und verminderter Jodfarbzahl |
DE10228734A1 (de) * | 2002-06-27 | 2004-01-22 | Bayer Ag | Verfahren zur Herstellung von Polyisocyanaten der Diphenylmethanreihe mit vermindertem Farbwert |
JP4066157B2 (ja) * | 2002-07-16 | 2008-03-26 | 日本ポリウレタン工業株式会社 | ポリメチレンポリフェニルポリイソシアネートの生産方法 |
DE102004005319A1 (de) * | 2004-02-04 | 2005-08-25 | Bayer Materialscience Ag | Verfahren zur Herstellung von hochreinem 2,4'-Methylendiphenyldiisocyanat |
JP4920186B2 (ja) * | 2004-07-21 | 2012-04-18 | 三井化学株式会社 | メチレン架橋ポリフェニレンポリイソシアネートの製造方法 |
JP4920187B2 (ja) * | 2004-07-21 | 2012-04-18 | 三井化学株式会社 | メチレン架橋ポリフェニレンポリイソシアネートの製造方法 |
CA2606107C (en) * | 2005-05-30 | 2013-12-31 | Huntsman International Llc | Process for the preparation of polyisocyanates of the diphenylmethane series |
DE102006057652A1 (de) | 2006-12-07 | 2008-06-12 | Lanxess Deutschland Gmbh | Verfahren zur Herstellung von substituierten Aminoanthrachinonen |
WO2009154077A1 (ja) * | 2008-06-17 | 2009-12-23 | 日本ポリウレタン工業株式会社 | ポリイソシアネートの製造方法 |
RU2487116C2 (ru) * | 2008-11-26 | 2013-07-10 | Хантсмэн Интернэшнл Ллс | Способ производства изоцианатов |
EP2445869B1 (en) * | 2009-06-26 | 2014-12-24 | Basf Se | Process for the production of isocyanates, preferably diisocyanates and polyisocyanates with solvent recirculation |
KR101785129B1 (ko) * | 2009-12-18 | 2017-10-12 | 바스프 에스이 | Mda 합성에서 균일 촉매의 비용 효과적인 침착을 위한 2 단 공정 |
CN114349664B (zh) * | 2022-01-17 | 2023-08-11 | 万华化学(宁波)有限公司 | 一种低溴含量异氰酸酯的制备方法 |
Family Cites Families (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CA770026A (en) | 1967-10-24 | A. S. Lindberg Erik | Method of getting rid of malodorous air and water pollutants from alkaline pulp cooking | |
US2885420A (en) | 1956-01-27 | 1959-05-05 | Du Pont | Stabilization of organic isocyanates |
NL126380C (es) | 1964-12-17 | |||
GB1465014A (en) | 1976-02-17 | 1977-02-16 | Ici Ltd | Storage stability of diphenylmethane diisocyanates |
US4465639A (en) | 1983-01-26 | 1984-08-14 | The Upjohn Company | Process for polyisocyanates |
DE3440912A1 (de) | 1984-11-09 | 1986-05-15 | Bayer Ag, 5090 Leverkusen | Verfahren zur herstellung von waermefarbbestaendigen aliphatischen und/oder cycloaliphatischen diisocyanaten und ihre verwendung zur herstellung von farbverbesserten, modifizierten polyisocyanaten |
DE4006976A1 (de) * | 1990-03-06 | 1991-09-12 | Basf Ag | Verfahren zur herstellung von mischungen aus diphenylmethan-diisocyanaten und polyphenyl-polymethylen-polyisocyanaten mit einer verminderten iodfarbzahl |
DE4021712A1 (de) * | 1990-07-07 | 1992-01-09 | Basf Ag | Verfahren zur herstellung von mischungen aus diphenylmethan-diisocyanaten und polyphenol-polymethylen-polyisocyanaten mit einer verminderten iodfarbzahl |
-
1995
- 1995-06-30 DE DE19523851A patent/DE19523851A1/de not_active Withdrawn
-
1996
- 1996-06-21 DK DK96110026T patent/DK0751118T3/da active
- 1996-06-21 EP EP96110026A patent/EP0751118B1/de not_active Expired - Lifetime
- 1996-06-21 ES ES96110026T patent/ES2138270T3/es not_active Expired - Lifetime
- 1996-06-21 DE DE59603326T patent/DE59603326D1/de not_active Expired - Lifetime
- 1996-06-21 AT AT96110026T patent/ATE185554T1/de not_active IP Right Cessation
- 1996-06-26 US US08/675,428 patent/US6229043B1/en not_active Expired - Lifetime
- 1996-06-27 MX MX9602508A patent/MX9602508A/es unknown
- 1996-06-28 CN CN96111751A patent/CN1087312C/zh not_active Expired - Fee Related
- 1996-06-28 JP JP16971896A patent/JP3901244B2/ja not_active Expired - Lifetime
- 1996-06-28 CA CA002180285A patent/CA2180285A1/en not_active Abandoned
- 1996-06-29 KR KR1019960026928A patent/KR970001315A/ko not_active Application Discontinuation
Also Published As
Publication number | Publication date |
---|---|
CA2180285A1 (en) | 1996-12-31 |
DK0751118T3 (da) | 1999-12-27 |
CN1087312C (zh) | 2002-07-10 |
KR970001315A (ko) | 1997-01-24 |
CN1148056A (zh) | 1997-04-23 |
EP0751118A3 (de) | 1998-05-13 |
DE19523851A1 (de) | 1997-01-02 |
JPH09100263A (ja) | 1997-04-15 |
EP0751118A2 (de) | 1997-01-02 |
DE59603326D1 (de) | 1999-11-18 |
EP0751118B1 (de) | 1999-10-13 |
JP3901244B2 (ja) | 2007-04-04 |
MX9602508A (es) | 1997-04-30 |
ATE185554T1 (de) | 1999-10-15 |
US6229043B1 (en) | 2001-05-08 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
ES2138270T3 (es) | Procedimiento para la obtencion de mezclas, constituidas por difenilmetanodiisocianatos y polifenil-polimetilen-poliisocianatos, con un indice de color de yodo reducido y con un contenido de cloro reducido. | |
ES2113127T3 (es) | Derivado de androstenona. | |
MX9401249A (es) | 2, 4 diaminoquinazolinas sustituidas insecticidas. | |
ES2071989T3 (es) | Analogos de oligonucleotidos. | |
ES2053322T3 (es) | Fructo-oligosacaridos ramificados, procedimiento para su obtencion y utilizacion de los productos que los contienen. | |
ES2071140T3 (es) | Procedimiento para la obtencion de mezclas, constituidas por difenilmetano-diisocianatos y polifenil-polimetileno-poliisocianatos, con un indice de color de yodo reducido. | |
CR5058A (es) | 3-(bencilo-sustituido)-1-metil-6-trifluorometiluracilos herbidas | |
PA8541001A1 (es) | Nuevos compuestos antiinflamatorios de triazolopiridinas | |
ES2160257T3 (es) | Derivados de acido fenilacetico, procedimiento y productos intermedios para su obtencion, y agentes que los contienen. | |
ES2099587T3 (es) | Copolimeros de vinilpirrolidona y vinilimidazol, procedimiento para su obtencion, y su empleo en agentes de lavado. | |
ES2166374T3 (es) | Composiciones de derivados de polifenoles y su preparacion. | |
AR002909A1 (es) | Composicion fungicida y procedimiento para combatir hongos fitopatogenos. | |
MX9306234A (es) | Oxindoles y azaoxoindoles 1-substituidos y composiciones farmaceuticas que los contienen. | |
DK0464298T3 (da) | Echinacea-ekstrakter, fremgangsmåde til fremstilling deraf og formuleringer, der indeholder dem | |
ES2084877T3 (es) | Procedimiento para la obtencion de diacetilreina. | |
ES2085739T3 (es) | Compuestos anfifilos azufrados, fluorados y poliglicerolados, composicion cosmetica o farmaceutica que los contiene, procedimiento de preparacion y vesiculas formadas. | |
IL75826A0 (en) | Aromatic compounds,their preparation and their use as pesticides | |
ES2003838T3 (es) | Plantas de tomates resistentes a los insectos. | |
ES2149403T3 (es) | Benciloxicarbonilguanidinas sustituidas como inhibidores del intercambiador de protones de sodio, procedimiento para su preparacion, su empleo como medicamento o agente de diagnostico, asi como medicamento que las contiene. | |
ES2194837T3 (es) | Microbios de salmonella avirulentos que comprenden una mutacion en el gen cdt y usos de los mismos. | |
ES2167021T3 (es) | Derivados de acido 4-bifenil-4-hidroxibutirico sustituidos como inhibidores de metaloproteasa de matriz. | |
DK542781A (da) | Tricycliske cytosinderivater til anvendelse som laegemidler samt fremgangsmaade til fremstilling heraf | |
ES513822A1 (es) | Procedimiento para la produccion de aerosoles acuosos insecticidas y acaricidas. | |
ES2052720T3 (es) | Nuevos compuestos heterociclicos con propiedades plaguicidas. | |
MX9300203A (es) | Compuestos policiclicos disubstituidos y composicion farmaceutica que los contiene. |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
FG2A | Definitive protection |
Ref document number: 751118 Country of ref document: ES |