KR910006361A - 톨루엔 디이소시아네이트 잔류량을 감소시킨 우레탄 프리폴리머의 제조방법 - Google Patents
톨루엔 디이소시아네이트 잔류량을 감소시킨 우레탄 프리폴리머의 제조방법 Download PDFInfo
- Publication number
- KR910006361A KR910006361A KR1019900015240A KR900015240A KR910006361A KR 910006361 A KR910006361 A KR 910006361A KR 1019900015240 A KR1019900015240 A KR 1019900015240A KR 900015240 A KR900015240 A KR 900015240A KR 910006361 A KR910006361 A KR 910006361A
- Authority
- KR
- South Korea
- Prior art keywords
- polyisocyanate
- inert gas
- prepolymer
- molar weight
- residual
- Prior art date
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)
- Vaporization, Distillation, Condensation, Sublimation, And Cold Traps (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Abstract
내용 없음.
Description
본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음
Claims (19)
- 폴리우레탄 프리폴리머가 유기 폴리이소시아네이트와 폴리올을 반응시킴에 의해 제조되고 폴리우레탄 프리폴리머 반응 생성 혼합물은 잔류 폴리이소시아네이트를 포함할 시, 상기 반응 생성 혼합물내의 폴리이소시아네이트 잔류량을 감소시키는 증류 방법에 있어서, 불활성 가스 질량 흐름율 및 폴리이소시아네이트-함유 프리폴리머 질량 흐름율의 비가 약 0.06(몰중량 불활성 가스/몰중량 폴리이소시아네이트) 이상이 되도록 불활성 가스를 증류 공정에 도입하는 단계를 포함하는 것을 특징으로 하는 방법.
- 제1항에 있어서, 상기 비는 약 1.55(몰중량 불활성 가스/몰중량 폴리이소시아네이트) 미만인 것을 특징으로 하는 방법.
- 제1항에 있어서, 상기 불활성 가스는 질소인 것을 특징으로 하는 방법.
- 제1항에 있어서, 상기 유기 폴리이소시아네이트는 톨루엔 디이소시아네이트 이성질체 또는 이성질체들의 혼합물인 것을 특징으로 하는 방법.
- 제1항에 있어서, 상기 증류 방법은 필름-형 증발 방법인 것을 특징으로 하는 방법.
- 제5항에 있어서, 상기 방법은 와이프트 필름 증발 방법인 것을 특징으로 하는 방법.
- 제1항에 있어서, 상기 생성된 프리폴리머 생성물은 약 0.1중량% 미만의 잔류 유기 폴리이소시아네이트를 포함하는 것을 특징으로 하는 방법.
- 제1항에 있어서, 상기 비율은 0.3(몰중량 불활성가스/몰중량 폴리이소시아네이트) 내지 1(몰중량 불활성가스/몰중량 폴리이소시아네이트)인 것을 특징으로 하는 방법.
- 폴리우레탄 프리폴리머가 유기 폴리이소시아네이트와 폴리올을 반응시킴에 의해 제조되고 폴리우레탄 프리폴리머 반응 생성 혼합물은 잔류 폴리이소시아네이트를 포함할 시, 상기 반응 생성 혼합물내의 폴리이소시아네이트 잔류량을 감소시키는 필름형 증발 방법에 있어서,가 되도록 불활성 가스 흐름을 증발 공정에 도입하는 단계를 포함하는 것을 특징으로 하는 방법.
- 제9항에 있어서, 상기 불활성 가스는 질소인 것을 특징으로 하는 방법.
- 제9항에 있어서, 상기 유기 폴리이소시아네이트는 톨루엔 디이소시아네이트 이성질체 또는 이성질체들의 혼합물인 것을 특징으로 하는 방법.
- 제9항에 있어서, 상기 방법은 와이프트 필름 증발 방법인 것을 특징으로 하는 방법.
- 제9항에 있어서, 상기 생성된 프리폴리머 생성물은 약 0.1중량%미만의 잔류 유기 폴리이소시아네이트를 포함하는 것을 특징으로 하는 방법.
- 제9항에 있어서, 상기 불활성 가스 흐름은가 되도록 도입되는 것을 특징으로 하는 방법.
- 제13항에 있어서, 상기 불활성 가스는 프리폴리머의 체류량이 증발대를 통과한 후 상기 체류량을 통과하는 것을 특징으로 하는 방법.
- 폴리우레탄 프리폴리머가 유기 폴리이소시아네이트와 폴리올을 반응시킴에 의해 제조되고 폴리우레탄 프리폴리머 반응 생성 혼합물은 잔류 폴리이소시아네이트를 포함할 시, 상기 반응 생성 혼합물내의 폴리이소시아네이트 잔류량을 감소시키는 와이프트 필름 증발 방법에 있어서,0.25가 되도록 불활성 가스 흐름을 증발 공정에 도입하는 것을 특징으로 하는 방법.
- 제16항에 있어서, 상기 불활성 가스는 프리폴리머의 체류량이 증발대를 통과한 후 상기 체류량을 통과하는 것을 특징으로 하는 방법.
- 제17항에 있어서, 상기 생성된 프리폴리머 생성물은 약 0.1중량 % 미만의 잔류 유기 폴리이소시아네이트를 포함하는 것을 특징으로 하는 방법.
- 제17항에 있어서, 상기 질소 흐름은이 되도록 도입되는 것을 특징으로 하는 방법.※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US412953 | 1973-11-05 | ||
US412,953 | 1989-09-26 | ||
US07/412,953 US5051152A (en) | 1989-09-26 | 1989-09-26 | Preparation of urethane prepolymers having low levels of residual toluene diisocyanate |
Publications (2)
Publication Number | Publication Date |
---|---|
KR910006361A true KR910006361A (ko) | 1991-04-29 |
KR930006919B1 KR930006919B1 (ko) | 1993-07-24 |
Family
ID=23635160
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
KR1019900015240A KR930006919B1 (ko) | 1989-09-26 | 1990-09-26 | 톨루엔 디이소시아네이트 잔류량을 감소시킨 우레탄 프리폴리머의 제조방법 |
Country Status (12)
Country | Link |
---|---|
US (1) | US5051152A (ko) |
EP (1) | EP0420026B1 (ko) |
JP (1) | JPH03128917A (ko) |
KR (1) | KR930006919B1 (ko) |
AR (1) | AR245146A1 (ko) |
AU (1) | AU627361B2 (ko) |
BR (1) | BR9004691A (ko) |
CA (1) | CA2025691C (ko) |
DE (1) | DE69007392T2 (ko) |
ES (1) | ES2053045T3 (ko) |
MX (1) | MX168620B (ko) |
ZA (1) | ZA906854B (ko) |
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. |
US20030092848A1 (en) * | 2001-09-11 | 2003-05-15 | Ashok Sengupta | Sprayable liner for supporting the rock surface of a mine |
US6664414B2 (en) | 2001-09-11 | 2003-12-16 | 3M Innovative Properties Company | Process for reducing residual isocyanate |
EP1791919A1 (en) * | 2004-09-20 | 2007-06-06 | 3M Innovative Properties Company | Surface support method |
AU2005287030A1 (en) * | 2004-09-20 | 2006-03-30 | 3M Innovative Properties Company | 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 |
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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 (ko) * | 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 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 DE DE69007392T patent/DE69007392T2/de not_active Expired - Fee Related
- 1990-09-19 EP EP90118039A patent/EP0420026B1/en not_active Expired - Lifetime
- 1990-09-20 BR BR909004691A patent/BR9004691A/pt not_active Application Discontinuation
- 1990-09-20 AU AU63008/90A patent/AU627361B2/en not_active Ceased
- 1990-09-24 MX MX022520A patent/MX168620B/es unknown
- 1990-09-25 JP JP2252092A patent/JPH03128917A/ja active Granted
- 1990-09-26 KR KR1019900015240A patent/KR930006919B1/ko not_active IP Right Cessation
- 1990-09-26 AR AR90317948A patent/AR245146A1/es active
Also Published As
Publication number | Publication date |
---|---|
JPH051807B2 (ko) | 1993-01-11 |
KR930006919B1 (ko) | 1993-07-24 |
US5051152A (en) | 1991-09-24 |
MX168620B (es) | 1993-06-01 |
EP0420026A3 (en) | 1991-05-08 |
AR245146A1 (es) | 1993-12-30 |
AU6300890A (en) | 1991-04-11 |
DE69007392D1 (de) | 1994-04-21 |
DE69007392T2 (de) | 1994-06-23 |
EP0420026A2 (en) | 1991-04-03 |
AU627361B2 (en) | 1992-08-20 |
ZA906854B (en) | 1992-04-29 |
ES2053045T3 (es) | 1994-07-16 |
CA2025691A1 (en) | 1991-03-27 |
CA2025691C (en) | 1996-07-30 |
EP0420026B1 (en) | 1994-03-16 |
BR9004691A (pt) | 1991-09-10 |
JPH03128917A (ja) | 1991-05-31 |
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