ES2071140T3 - Procedimiento para la obtencion de mezclas, constituidas por difenilmetano-diisocianatos y polifenil-polimetileno-poliisocianatos, con un indice de color de yodo reducido. - Google Patents
Procedimiento para la obtencion de mezclas, constituidas por difenilmetano-diisocianatos y polifenil-polimetileno-poliisocianatos, con un indice de color de yodo reducido.Info
- Publication number
- ES2071140T3 ES2071140T3 ES91102593T ES91102593T ES2071140T3 ES 2071140 T3 ES2071140 T3 ES 2071140T3 ES 91102593 T ES91102593 T ES 91102593T ES 91102593 T ES91102593 T ES 91102593T ES 2071140 T3 ES2071140 T3 ES 2071140T3
- Authority
- ES
- Spain
- Prior art keywords
- polymethylene
- polyphenyl
- diisocyanates
- polyisocyanates
- diphenylmethane
- 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
- 229920001228 polyisocyanate Polymers 0.000 title abstract 2
- 239000005056 polyisocyanate Substances 0.000 title abstract 2
- PNDPGZBMCMUPRI-UHFFFAOYSA-N iodine Chemical compound II PNDPGZBMCMUPRI-UHFFFAOYSA-N 0.000 title 1
- 229910052740 iodine Inorganic materials 0.000 title 1
- 239000011630 iodine Substances 0.000 title 1
- 239000000203 mixture Substances 0.000 title 1
- YGYAWVDWMABLBF-UHFFFAOYSA-N Phosgene Chemical compound ClC(Cl)=O YGYAWVDWMABLBF-UHFFFAOYSA-N 0.000 abstract 2
- 239000000956 alloy Substances 0.000 abstract 2
- 229910045601 alloy Inorganic materials 0.000 abstract 2
- 239000003960 organic solvent Substances 0.000 abstract 2
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 abstract 1
- ISWSIDIOOBJBQZ-UHFFFAOYSA-N Phenol Chemical compound OC1=CC=CC=C1 ISWSIDIOOBJBQZ-UHFFFAOYSA-N 0.000 abstract 1
- 239000003963 antioxidant agent Substances 0.000 abstract 1
- 230000003078 antioxidant effect Effects 0.000 abstract 1
- OJMIONKXNSYLSR-UHFFFAOYSA-N phosphorous acid Chemical compound OP(O)O OJMIONKXNSYLSR-UHFFFAOYSA-N 0.000 abstract 1
- 229920000768 polyamine Polymers 0.000 abstract 1
Classifications
-
- 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
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L79/00—Compositions of macromolecular compounds obtained by reactions forming in the main chain of the macromolecule a linkage containing nitrogen with or without oxygen or carbon only, not provided for in groups C08L61/00 - C08L77/00
-
- 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
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
- Polyurethanes Or Polyureas (AREA)
- Compositions Of Macromolecular Compounds (AREA)
Abstract
LA INVENCION ES EL METODO PARA LA ELABORACION DE ALEACIONES DE DIFENILMETANO-DIISOCIANATOS Y POLIFENIL-POLIMETILENO-POLIISOCIANATOS (ROH -MDI) CON UN INDICE REDUCIDO DE COLOR DEL YODO A TRAVES DE LA TRANSFORMACION DE LAS CORRESPONDIENTES ALEACIONES DE DIFENILMETANO-DIAMINA Y POLIFENIL-POLIMETILENO-POLIAMINA CON FOSGENO EN PRESENCIA DE AL MENOS UN DISOLVENTE INERTE ORGANICO A TEMPERATURA ELEVADA, EN EL QUE SE HA APLICADO DESPUES DE LA FINALIZADA FOSGENIZACION DE LA ALEACION, AL CANAL DE BAJA MOLECULARIDAD, ALCOHOL POLIVALENTE, BIVALENTE HASTA OCTOVALENTE CON PESO MOLECULAR DE 60 A 350 O ALEACIONES DE ESTE TIPO EN UNA CANTIDAD ACTIVA, A SER POSIBLE DE 0,01 HASTA 5% DE PESO, EN EL PESO ROH-MDI, SE HA INCORPORADO , DESPUES SE HAN SEPARADO EL FOSGENO Y EL DISOLVENTE INERTE ORGANICO, APLICANDO AL PRODUCTO DE LA REACCION UN PESO DE 0 A 5% EN EL PESO ROH-MDI, SE HA AÑADIDO AL MENOS UN ANTIOXIDANTE EN EL FENOL BASE Y/O FOSFITO DE ARILO.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE4006976A DE4006976A1 (de) | 1990-03-06 | 1990-03-06 | Verfahren zur herstellung von mischungen aus diphenylmethan-diisocyanaten und polyphenyl-polymethylen-polyisocyanaten mit einer verminderten iodfarbzahl |
Publications (1)
Publication Number | Publication Date |
---|---|
ES2071140T3 true ES2071140T3 (es) | 1995-06-16 |
Family
ID=6401513
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
ES91102593T Expired - Lifetime ES2071140T3 (es) | 1990-03-06 | 1991-02-22 | Procedimiento para la obtencion de mezclas, constituidas por difenilmetano-diisocianatos y polifenil-polimetileno-poliisocianatos, con un indice de color de yodo reducido. |
Country Status (9)
Country | Link |
---|---|
US (1) | US5207942A (es) |
EP (1) | EP0445602B1 (es) |
JP (1) | JP3006898B2 (es) |
KR (1) | KR0177814B1 (es) |
AT (1) | ATE122034T1 (es) |
CA (1) | CA2036538C (es) |
DE (2) | DE4006976A1 (es) |
DK (1) | DK0445602T3 (es) |
ES (1) | ES2071140T3 (es) |
Families Citing this family (18)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
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 |
DE4217525A1 (de) * | 1992-05-27 | 1993-12-02 | Bayer Ag | Verfahren zur Standardisierung und Stabilisierung von organischen Polyisocyanaten und ihre Verwendung |
US5312971A (en) * | 1992-07-23 | 1994-05-17 | Miles Inc. | Color reduction of polymethylene polyphenyl polyisocyanates |
DE19523851A1 (de) * | 1995-06-30 | 1997-01-02 | Basf Ag | Verfahren zur Herstellung von Mischungen aus Diphenylmethan-diisocyanaten und Polyphenyl-polymethylen-polyisocyanaten mit einer verminderten Iodfarbzahl und einem reduzierten Chlorgehalt |
DE19711447A1 (de) * | 1997-03-19 | 1998-09-24 | Basf Ag | Verfahren zur Herstellung von Isocyanaten mit heller Farbe |
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 |
DE19914291A1 (de) * | 1999-03-30 | 2000-10-05 | Bayer Ag | Verfahren zur Absenkung des Chlorgehaltes von niedermolekularen Isocyanaten |
DE19928741A1 (de) | 1999-06-23 | 2000-12-28 | Basf Ag | Helle Isocyanate, Verfahren zu deren Herstellung und deren Verwendung |
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 |
PL1732965T3 (pl) * | 2003-07-14 | 2014-05-30 | Vencorex Us Inc | Polepszona stabilność koloru izocyjanianów |
CA2630801C (en) * | 2005-12-08 | 2013-04-02 | Huntsman International Llc | Process for preparing diaminodiphenylmethanes |
DE102006002157A1 (de) * | 2006-01-17 | 2007-07-19 | Bayer Materialscience Ag | Verfahren zur Herstellung heller Isocyanate |
JP2007223997A (ja) * | 2006-02-27 | 2007-09-06 | Nippon Polyurethane Ind Co Ltd | オキシアルキレン基含有脂肪族イソシアネートの製造方法 |
DE102006061475A1 (de) * | 2006-12-23 | 2008-06-26 | Evonik Degussa Gmbh | Verfahren zur kontinuierlichen Herstellung von (cyclo)aliphatischen Diisocyanaten |
CN102317255B (zh) * | 2008-11-26 | 2014-10-08 | 亨茨曼国际有限公司 | 制备异氰酸酯的方法 |
CN102803200B (zh) | 2009-04-24 | 2014-12-31 | 巴斯夫欧洲公司 | 制备颜色稳定的mda和mdi的方法 |
KR102009060B1 (ko) | 2011-10-21 | 2019-08-08 | 바이엘 인텔렉쳐 프로퍼티 게엠베하 | 담색 폴리이소시아네이트의 제조방법 |
Family Cites Families (23)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2957903A (en) * | 1959-03-24 | 1960-10-25 | Du Pont | Stabilization of organic isocyanates |
GB1014043A (en) * | 1963-07-01 | 1965-12-22 | Ici Ltd | Isocyanate compositions |
US3359295A (en) * | 1964-02-07 | 1967-12-19 | Allied Chem | Polyisocyanate compositions and processes for the production thereof |
US3488374A (en) * | 1965-10-04 | 1970-01-06 | Olin Mathieson | Preparation of polyisocyanate compositions |
DE1618380C3 (de) * | 1967-03-08 | 1975-09-11 | Bayer Ag, 5090 Leverkusen | Verfahren zur Herstellung eines bei Raumtemperatur flüssigen Diphenylmethan-diisocyanatpräparates |
US3715381A (en) * | 1969-06-11 | 1973-02-06 | Allied Chem | Polyisocyanate compositions stabilized against discoloration |
US4014914A (en) * | 1970-01-12 | 1977-03-29 | Badische Anilin- & Soda-Fabrik Aktiengesellschaft | Manufacture of 4,4'-diphenylmethane diisocyanate and a mixture of diisocyanates and polyisocyanates |
UST881001I4 (en) * | 1970-04-09 | 1970-12-01 | Defensive publication | |
US3723363A (en) * | 1970-09-23 | 1973-03-27 | F Shaw | Trimerized crude isocyanate mixtures and polyurethane foams prepared from same |
US3914269A (en) * | 1973-12-10 | 1975-10-21 | Du Pont | Storage stable crude isocyanates and production thereof |
US4118411A (en) * | 1977-02-09 | 1978-10-03 | Mobay Chemical Corporation | Low-temperature storage stable liquid diphenylmethane diisocyanates |
US4297472A (en) * | 1977-08-26 | 1981-10-27 | Mobay Chemical Corporation | Method of producing color stable thermoplastic polymethanes and products made thereby |
DE3129270A1 (de) * | 1981-07-24 | 1983-02-10 | Bayer Ag, 5090 Leverkusen | Verfahren zur herstellung von polyisocyanaten |
DE3144672A1 (de) * | 1981-11-10 | 1983-05-26 | Bayer Ag, 5090 Leverkusen | Verfahren zur herstellung von mischtrimerisaten organischer isocyanate, die nach dem verfahren erhaltenen mischtrimerisate, sowie ihre verwendung zur herstellung von polyurethanen |
US4800040A (en) * | 1983-06-27 | 1989-01-24 | Fritz Hostettler | Low temperature, storage stable mixtures of prepolymers and flow modifiers |
US4552902A (en) * | 1984-12-24 | 1985-11-12 | The Dow Chemical Company | Process for preparing stable solutions of trimerized isocyanates in monomeric polyisocyanates |
US4677154A (en) * | 1985-12-18 | 1987-06-30 | Basf Corporation | Stabilizer package for polyurethane comprising a substituted cresol and another costabilizer |
US4743627A (en) * | 1987-09-14 | 1988-05-10 | Basf Corporation | Liquid isocyanurate-modified polymethylene bis(phenylisocyanate) compositions containing a high two-ring methylene bis(phenylisocyanate) content |
GB8728886D0 (en) * | 1987-12-10 | 1988-01-27 | Ici Plc | Polyisocyanate compositions |
US4814103A (en) * | 1988-02-18 | 1989-03-21 | Mobay Corporation | Color stable urethane prepolymer |
US4986929A (en) * | 1989-08-23 | 1991-01-22 | Mobay Corporation | Novel isocyanate blends |
DE3928330A1 (de) * | 1989-08-26 | 1991-02-28 | Bayer Ag | Fluessige polyisocyanatgemische, ein verfahren zu ihrer herstellung und ihrer verwendung bei der herstellung von polyurethanschaumstoffen |
DE4015155A1 (de) * | 1990-05-11 | 1991-11-14 | Bayer Ag | Verfahren zur herstellung von isocyanuratpolyisocyanaten, die nach diesem verfahren enthaltenen verbindungen und ihre verwendung |
-
1990
- 1990-03-06 DE DE4006976A patent/DE4006976A1/de not_active Withdrawn
-
1991
- 1991-02-08 US US07/653,566 patent/US5207942A/en not_active Expired - Lifetime
- 1991-02-18 CA CA002036538A patent/CA2036538C/en not_active Expired - Fee Related
- 1991-02-22 EP EP91102593A patent/EP0445602B1/de not_active Expired - Lifetime
- 1991-02-22 DK DK91102593.0T patent/DK0445602T3/da active
- 1991-02-22 ES ES91102593T patent/ES2071140T3/es not_active Expired - Lifetime
- 1991-02-22 DE DE59105349T patent/DE59105349D1/de not_active Expired - Fee Related
- 1991-02-22 AT AT91102593T patent/ATE122034T1/de not_active IP Right Cessation
- 1991-02-28 JP JP3034095A patent/JP3006898B2/ja not_active Expired - Lifetime
- 1991-03-06 KR KR1019910003567A patent/KR0177814B1/ko not_active IP Right Cessation
Also Published As
Publication number | Publication date |
---|---|
EP0445602A2 (de) | 1991-09-11 |
JPH04211641A (ja) | 1992-08-03 |
KR910016861A (ko) | 1991-11-05 |
EP0445602A3 (en) | 1992-04-15 |
CA2036538C (en) | 1996-04-16 |
EP0445602B1 (de) | 1995-05-03 |
CA2036538A1 (en) | 1991-09-07 |
DE4006976A1 (de) | 1991-09-12 |
ATE122034T1 (de) | 1995-05-15 |
KR0177814B1 (ko) | 1999-05-15 |
DK0445602T3 (da) | 1995-07-17 |
JP3006898B2 (ja) | 2000-02-07 |
DE59105349D1 (de) | 1995-06-08 |
US5207942A (en) | 1993-05-04 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
FG2A | Definitive protection |
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