ES2053045T3 - Toluen diisocianato residual. - Google Patents
Toluen diisocianato residual.Info
- Publication number
- ES2053045T3 ES2053045T3 ES90118039T ES90118039T ES2053045T3 ES 2053045 T3 ES2053045 T3 ES 2053045T3 ES 90118039 T ES90118039 T ES 90118039T ES 90118039 T ES90118039 T ES 90118039T ES 2053045 T3 ES2053045 T3 ES 2053045T3
- Authority
- ES
- Spain
- Prior art keywords
- residual
- diisocianato
- toluen
- evaporation process
- evaporation
- 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
- C07C269/00—Preparation of derivatives of carbamic acid, i.e. compounds containing any of the groups, the nitrogen atom not being part of nitro or nitroso groups
- C07C269/08—Separation; Purification; Stabilisation; Use of additives
-
- 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
- C08G18/08—Processes
- C08G18/10—Prepolymer processes involving reaction of isocyanates or isothiocyanates with compounds having active hydrogen in a first reaction step
-
- 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
- C08G18/7614—Polyisocyanates or polyisothiocyanates cyclic aromatic containing only one aromatic ring
- C08G18/7621—Polyisocyanates or polyisothiocyanates cyclic aromatic containing only one aromatic ring being toluene diisocyanate including isomer mixtures
-
- 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
- C08G18/82—Post-polymerisation treatment
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Polyurethanes Or Polyureas (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
- Vaporization, Distillation, Condensation, Sublimation, And Cold Traps (AREA)
Abstract
UN PROCESO DE EVAPORACION DE MEMBRANAS LIMPIAS SE UTILIZA PARA REDUCIR LA CANTIDAD DE DIISOCIANATO DE TOLUENO RESIDUAL EN UNA MEZCLA PRODUCTO DE LA REACCION DE PREPOLIMERO DE POLIURETANO. UN GAS INERTE SE AÑADE AL PROCESO DE EVAPORACION PREFERENTEMENTE DESPUES DE QUE EL PREPOLIMERO HAYA PASADO A TRAVES DE LA ZONA DE EVAPORACION.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US07/412,953 US5051152A (en) | 1989-09-26 | 1989-09-26 | Preparation of urethane prepolymers having low levels of residual toluene diisocyanate |
Publications (1)
Publication Number | Publication Date |
---|---|
ES2053045T3 true ES2053045T3 (es) | 1994-07-16 |
Family
ID=23635160
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
ES90118039T Expired - Lifetime ES2053045T3 (es) | 1989-09-26 | 1990-09-19 | Toluen diisocianato residual. |
Country Status (12)
Country | Link |
---|---|
US (1) | US5051152A (es) |
EP (1) | EP0420026B1 (es) |
JP (1) | JPH03128917A (es) |
KR (1) | KR930006919B1 (es) |
AR (1) | AR245146A1 (es) |
AU (1) | AU627361B2 (es) |
BR (1) | BR9004691A (es) |
CA (1) | CA2025691C (es) |
DE (1) | DE69007392T2 (es) |
ES (1) | ES2053045T3 (es) |
MX (1) | MX168620B (es) |
ZA (1) | ZA906854B (es) |
Families Citing this family (17)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5202001A (en) * | 1989-09-26 | 1993-04-13 | Air Products And Chemicals, Inc. | Preparation of urethane prepolymers having low levels of residual toluene diisocyanate |
DE4140660A1 (de) * | 1991-12-10 | 1993-06-17 | Bayer Ag | Ether- und urethangruppen aufweisende polyisocyanate, ein verfahren zu ihrer herstellung und ihrer verwendung |
DK0746580T4 (da) * | 1994-02-24 | 2004-05-10 | Henkel Kgaa | Skumplast fra engangstrykbeholdere |
DE4429076A1 (de) * | 1994-08-17 | 1996-02-22 | Bayer Ag | Isocyanatpräpolymere, ein Verfahren zu ihrer Herstellung und ihre Verwendung |
US5925781A (en) * | 1997-11-03 | 1999-07-20 | Bayer Corporation | Prepolymers with low monomeric TDI content |
US5817734A (en) * | 1997-11-03 | 1998-10-06 | Bayer Corporation | Prepolymers with low TDI content |
US6133415A (en) * | 1999-06-21 | 2000-10-17 | Air Products And Chemicals, Inc. | Process for making polyurethane prepolymers |
NL1013682C2 (nl) * | 1999-11-26 | 2001-05-30 | Purac Biochem Bv | Werkwijze en inrichting voor het zuiveren van een waterige oplossing van melkzuur. |
US6664414B2 (en) | 2001-09-11 | 2003-12-16 | 3M Innovative Properties Company | Process for reducing residual isocyanate |
US20030092848A1 (en) * | 2001-09-11 | 2003-05-15 | Ashok Sengupta | Sprayable liner for supporting the rock surface of a mine |
WO2006034083A1 (en) * | 2004-09-20 | 2006-03-30 | 3M Innovative Properties Company | Surface support method |
US20080015310A1 (en) * | 2004-09-20 | 2008-01-17 | Jiangdong Tong | Surface Support Method |
JP2006281083A (ja) * | 2005-03-31 | 2006-10-19 | Mitsui Chemicals Polyurethanes Inc | 薄膜蒸発装置 |
US20070149656A1 (en) * | 2005-12-23 | 2007-06-28 | 3M Innovative Properties Company | Sprayable mining liner composition |
EP2252459B1 (de) | 2008-02-18 | 2013-04-17 | Hologram Industries Research GmbH | Verfahren zur individuellen heissprägefolienapplikation und damit hergestellte sicherheitsdokumente |
EP3744747A1 (de) * | 2019-05-27 | 2020-12-02 | Covestro Deutschland AG | Verbesserte destillierfähigkeit durch verdünnung mit abzutrennender komponente |
CN111521695B (zh) * | 2020-04-14 | 2022-09-16 | 中国建材检验认证集团苏州有限公司 | 一种聚氨酯涂料中游离甲苯二异氰酸酯的快速检测方法 |
Family Cites Families (28)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CA703514A (en) * | 1965-02-09 | Kerrigan Vincent | Purification process | |
GB798636A (en) * | 1955-07-12 | 1958-07-23 | Du Pont | Recovery of organic isocyanates |
US3183112A (en) * | 1955-12-06 | 1965-05-11 | Bayer Ag | Isocyanates and method of preparing same |
US3248372A (en) * | 1960-11-08 | 1966-04-26 | Bayer Ag | Glycol modified isocyanurate containing polyisocyanates |
US3384624A (en) * | 1965-03-01 | 1968-05-21 | Mobay Chemical Corp | Prepolymer composition |
GB1146661A (en) * | 1965-04-29 | 1969-03-26 | Ici Ltd | Foamed polymers |
FR1555515A (es) * | 1966-05-05 | 1969-01-31 | ||
US3549504A (en) * | 1966-05-05 | 1970-12-22 | Takeda Chemical Industries Ltd | Method for the purification of organic polyisocyanates by fractional distillation in presence of an inert gas or superheated vapor of an organic solvent |
US3857871A (en) * | 1972-01-03 | 1974-12-31 | Upjohn Co | Process for reducing the acidity and hydrolyzable chloride content of polyisocyanates |
IT967742B (it) * | 1972-09-22 | 1974-03-11 | Montedison Spa | Procedimento per la preparazione di poliisocianati ad alto peso molecolare |
GB1347647A (en) * | 1973-01-16 | 1974-02-27 | Ici Ltd | Process for the purification of organic isocyanates |
US3853936A (en) * | 1973-02-05 | 1974-12-10 | Olin Corp | Process for distillation of toluene diisocyanate |
US3912600A (en) * | 1974-05-09 | 1975-10-14 | Upjohn Co | Recovery of polymethylene polyphenyl polyisocyanate from a phoshenosed polyamine feed |
DE2503270C2 (de) * | 1975-01-28 | 1983-06-09 | Basf Ag, 6700 Ludwigshafen | Verfahren zur Herstellung von aliphatischen Isocyanaten |
US4061662A (en) * | 1975-08-28 | 1977-12-06 | W. R. Grace & Co. | Removal of unreacted tolylene diisocyanate from urethane prepolymers |
FR2397396A1 (fr) * | 1977-07-12 | 1979-02-09 | Ugine Kuhlmann | Procede de recuperation du toluene diisocyanate a partir des residus de fabrication |
DE2932095A1 (de) * | 1979-08-08 | 1981-04-09 | Bayer Ag, 5090 Leverkusen | Verfahren zur herstellung von diisocyanatotoluol-gemischen mit einem erhoehten gehalt an 2,6-diisocyanatotoluol, sowie deren verwendung als aufbaukomponente bei der herstellung von polyurethanelastomeren |
DE2933601C2 (de) * | 1979-08-18 | 1985-07-11 | Basf Ag, 6700 Ludwigshafen | Verfahren zur Gewinnung von Mischungen aus Diphenyl-methan-diisocyanat-Isomeren und gegebenenfalls reinem 4,4'-Diphenylmethan-diisocyanat mit einem geringen Gehalt an Uretdionen und hydrolysierbaren Chlorverbindungen |
US4338408A (en) * | 1981-07-20 | 1982-07-06 | Texaco Inc. | Polyurethanes using bis(aminoethyl)ether derivatives as catalysts |
US4385171A (en) * | 1982-04-30 | 1983-05-24 | Olin Corporation Research Center | Removal of unreacted diisocyanate from polyurethane prepolymers |
US4524991A (en) * | 1983-06-27 | 1985-06-25 | Thomas Ralph D | Snap on device for hardcover ring binder |
US4853419A (en) * | 1985-07-18 | 1989-08-01 | Sloss Industries Corporation | Distilled products of polyethylene terephthalate polymers and polycarboxylic acid-containing polyols and polymeric foams obtained therefrom |
US4757538A (en) * | 1986-07-07 | 1988-07-12 | Tektronix, Inc. | Separation of L+R from L-R in BTSC system |
US4683279A (en) * | 1986-07-08 | 1987-07-28 | Air Products And Chemicals, Inc. | Low melting urethane linked toluenediisocyanates |
US4786703A (en) * | 1987-04-15 | 1988-11-22 | Air Products And Chemicals, Inc. | Process for the preparation of polyisocyanate prepolymers and polyurethanes having high temperature performance and low hysteresis |
FR2625742B1 (fr) * | 1988-01-13 | 1990-06-22 | Rhone Poulenc Chimie | Procede de separation du toluene diisocyanate contenu dans les residus de sa fabrication |
FR2629086B1 (fr) * | 1988-03-22 | 1990-12-07 | Rhone Poulenc Chimie | Procede de purification et d'isolement de condensats d'isocyanates par extraction au co2 liquide ou supercritique |
US5231952A (en) * | 1992-05-01 | 1993-08-03 | Tenniswood David M | Compact, stowable marker device for underwater location |
-
1989
- 1989-09-26 US US07/412,953 patent/US5051152A/en not_active Expired - Lifetime
-
1990
- 1990-08-28 ZA ZA906854A patent/ZA906854B/xx unknown
- 1990-09-19 DE DE69007392T patent/DE69007392T2/de not_active Expired - Fee Related
- 1990-09-19 CA CA002025691A patent/CA2025691C/en not_active Expired - Fee Related
- 1990-09-19 ES ES90118039T patent/ES2053045T3/es not_active Expired - Lifetime
- 1990-09-19 EP EP90118039A patent/EP0420026B1/en not_active Expired - Lifetime
- 1990-09-20 AU AU63008/90A patent/AU627361B2/en not_active Ceased
- 1990-09-20 BR BR909004691A patent/BR9004691A/pt not_active Application Discontinuation
- 1990-09-24 MX MX022520A patent/MX168620B/es unknown
- 1990-09-25 JP JP2252092A patent/JPH03128917A/ja active Granted
- 1990-09-26 AR AR90317948A patent/AR245146A1/es active
- 1990-09-26 KR KR1019900015240A patent/KR930006919B1/ko not_active IP Right Cessation
Also Published As
Publication number | Publication date |
---|---|
ZA906854B (en) | 1992-04-29 |
MX168620B (es) | 1993-06-01 |
KR930006919B1 (ko) | 1993-07-24 |
DE69007392D1 (de) | 1994-04-21 |
CA2025691A1 (en) | 1991-03-27 |
US5051152A (en) | 1991-09-24 |
AU6300890A (en) | 1991-04-11 |
DE69007392T2 (de) | 1994-06-23 |
AU627361B2 (en) | 1992-08-20 |
CA2025691C (en) | 1996-07-30 |
EP0420026A2 (en) | 1991-04-03 |
JPH03128917A (ja) | 1991-05-31 |
AR245146A1 (es) | 1993-12-30 |
EP0420026A3 (en) | 1991-05-08 |
KR910006361A (ko) | 1991-04-29 |
BR9004691A (pt) | 1991-09-10 |
JPH051807B2 (es) | 1993-01-11 |
EP0420026B1 (en) | 1994-03-16 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
FG2A | Definitive protection |
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