DE3867511D1 - Verfahren zur herstellung von polymerem mda, rueckfuehrung von polymerem mda-endprodukt. - Google Patents
Verfahren zur herstellung von polymerem mda, rueckfuehrung von polymerem mda-endprodukt.Info
- Publication number
- DE3867511D1 DE3867511D1 DE8888102832T DE3867511T DE3867511D1 DE 3867511 D1 DE3867511 D1 DE 3867511D1 DE 8888102832 T DE8888102832 T DE 8888102832T DE 3867511 T DE3867511 T DE 3867511T DE 3867511 D1 DE3867511 D1 DE 3867511D1
- Authority
- DE
- Germany
- Prior art keywords
- polyamines
- polymethylene polyphenyl
- improvement
- polymer mda
- mda
- 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 - Fee Related
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C209/00—Preparation of compounds containing amino groups bound to a carbon skeleton
- C07C209/68—Preparation of compounds containing amino groups bound to a carbon skeleton from amines, by reactions not involving amino groups, e.g. reduction of unsaturated amines, aromatisation, or substitution of the carbon skeleton
- C07C209/78—Preparation of compounds containing amino groups bound to a carbon skeleton from amines, by reactions not involving amino groups, e.g. reduction of unsaturated amines, aromatisation, or substitution of the carbon skeleton from carbonyl compounds, e.g. from formaldehyde, and amines having amino groups bound to carbon atoms of six-membered aromatic rings, with formation of methylene-diarylamines
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
- Phenolic Resins Or Amino Resins (AREA)
- Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)
- Macromolecular Compounds Obtained By Forming Nitrogen-Containing Linkages In General (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US07/019,168 US4792624A (en) | 1987-02-26 | 1987-02-26 | Process for polymeric MDA, recycle of finished polymeric MDA |
Publications (1)
Publication Number | Publication Date |
---|---|
DE3867511D1 true DE3867511D1 (de) | 1992-02-20 |
Family
ID=21791779
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE8888102832T Expired - Fee Related DE3867511D1 (de) | 1987-02-26 | 1988-02-25 | Verfahren zur herstellung von polymerem mda, rueckfuehrung von polymerem mda-endprodukt. |
Country Status (6)
Country | Link |
---|---|
US (1) | US4792624A (de) |
EP (1) | EP0283757B1 (de) |
JP (1) | JPS63227609A (de) |
AT (1) | ATE71359T1 (de) |
DE (1) | DE3867511D1 (de) |
PT (1) | PT86816B (de) |
Families Citing this family (18)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5136087A (en) * | 1991-05-15 | 1992-08-04 | Miles Inc. | Preparation of polymethylene polyphenyl polyisocyanate |
ES2090464T3 (es) * | 1991-12-10 | 1996-10-16 | Bayer Ag | Procedimiento para preparar poliamidas y poliisocianatos. |
US5889070A (en) * | 1991-12-10 | 1999-03-30 | Bayer Corporation | Process for preparing polyamines and polysocyanates |
US5386059A (en) * | 1991-12-10 | 1995-01-31 | Miles Inc. | Process for preparing polyamines for lighter color polyisocyanate based foam |
US5312971A (en) * | 1992-07-23 | 1994-05-17 | Miles Inc. | Color reduction of polymethylene polyphenyl polyisocyanates |
US5286760A (en) * | 1992-10-09 | 1994-02-15 | Miles, Inc. | Process for reducing impurity levels in methylene diphenyamines |
US6031136A (en) * | 1993-07-21 | 2000-02-29 | Bayer Corporation | Process for preparing methylene diphenylamines by partial neutralization of acidic methylene diphenylamines |
DE19630787A1 (de) * | 1996-07-31 | 1998-02-05 | Basf Ag | Verfahren zur Herstellung von Polyurethanen mit verbesserter Aushärtung |
US5942151A (en) * | 1997-11-20 | 1999-08-24 | Bayer Corporation | Polymeric MDI color |
DE10031540A1 (de) * | 2000-06-28 | 2002-01-10 | Basf Ag | Verfahren zur Herstellung eines aromatischen Polyamingemisches |
DE102006004041A1 (de) * | 2006-01-28 | 2007-08-02 | Bayer Materialscience Ag | Verfahren zur Herstellung von Di- und Polyaminen der Diphenylmethanreihe |
DE102006004047A1 (de) * | 2006-01-28 | 2007-08-02 | Bayer Materialscience Ag | Verfahren zur Herstellung von Di- und Polyaminen der Diphenylmethanreihe |
EP2145874B1 (de) * | 2007-04-06 | 2011-07-27 | Ningbo Wanhua Polyurethanes Co., Ltd. | Verfahren zur herstellung von polymethylenpolyphenylpolyamin |
DE102008015123A1 (de) * | 2008-03-20 | 2009-09-24 | Bayer Materialscience Ag | Verfahren zur Herstellung von Di- und Polyaminen der Diphenylmethanreihe |
US10125091B2 (en) | 2014-06-24 | 2018-11-13 | Covestro Deutschland Ag | Process for preparation of di- and polyamines of the diphenylmethane series |
JP6742922B2 (ja) * | 2014-06-24 | 2020-08-19 | コベストロ、ドイチュラント、アクチエンゲゼルシャフトCovestro Deutschland Ag | ジフェニルメタン系ジアミンおよびポリアミンの製造方法 |
WO2015197519A1 (de) | 2014-06-24 | 2015-12-30 | Covestro Deutschland Ag | Verfahren zur herstellung von di- und polyaminen derdiphenylmethanreihe |
WO2023063843A1 (en) * | 2021-10-13 | 2023-04-20 | Public Joint Stock Company "Sibur Holding" (Pjsc "Sibur Holding") | Method for producing (poly)diaminodiphenylmethane (variants) and method for producing (poly)diphenylmethane diisocyanate |
Family Cites Families (25)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3163666A (en) * | 1964-12-29 | x j jxx | ||
US2669556A (en) * | 1953-02-24 | 1954-02-16 | Du Pont | Process for preparing bis-(amino aryl) methane polyamides |
US2974168A (en) * | 1955-09-19 | 1961-03-07 | Monsanto Chemicals | Process for making methylenedianiline |
US2938054A (en) * | 1958-02-18 | 1960-05-24 | Allied Chem | Process for purification of 4, 4'-methylenedianiline |
BE634519A (de) * | 1962-07-05 | |||
BE639351A (de) * | 1963-06-13 | |||
US3260751A (en) * | 1963-06-13 | 1966-07-12 | Mobay Chemical Corp | Method of preparing polyamines |
US3297759A (en) * | 1964-01-13 | 1967-01-10 | Upjohn Co | Continuous process for producing mixtures of methylene-bridged polyphenyl polyamines |
FR1429551A (fr) * | 1964-02-28 | 1966-02-25 | Kaiser Aluminium Chem Corp | Procédé de production de polyamines primaires |
CA919836A (en) * | 1966-08-05 | 1973-01-23 | L. Powers Eugene | Polyamines |
US3416302A (en) * | 1967-01-10 | 1968-12-17 | Du Pont | Differential shrinkage yarn |
BE756251A (fr) * | 1969-09-17 | 1971-03-17 | Kaiser Aluminium Chem Corp | Procede pour preparer des polyamines aromatiques |
US3954867A (en) * | 1969-10-20 | 1976-05-04 | Funk Jr Bernard D | Continuous process for preparing methylene dianilines |
DE2308014A1 (de) * | 1973-02-17 | 1974-08-22 | Bayer Ag | Verfahren zur herstellung von diaminodiarylmethanen |
DE2307864A1 (de) * | 1973-02-17 | 1974-08-22 | Bayer Ag | Verfahren zur herstellung von diaminodiarylmethanen |
US3892634A (en) * | 1973-02-20 | 1975-07-01 | Upjohn Co | Separation of 2,4{40 {0 and 4,4{40 {0 methylene bis(phenyl isocyanate) from polymethylene polyphenyl polyisocyanates |
DE2500574C3 (de) * | 1975-01-09 | 1980-05-22 | Bayer Ag, 5090 Leverkusen | Verfahren zur Herstellung von Polyaminen |
DE2528694C2 (de) * | 1975-06-27 | 1982-04-22 | Bayer Ag, 5090 Leverkusen | Verfahren zur Herstellung von mehrkernigen aromatischen Polyaminen |
DE2557500A1 (de) * | 1975-12-19 | 1977-06-30 | Bayer Ag | Verfahren zur herstellung von polyaminen |
NL7705461A (nl) * | 1976-05-20 | 1977-11-22 | Plessey Handel Investment Ag | Gewicht- of spanningmeter. |
US4189354A (en) * | 1976-07-10 | 1980-02-19 | Bayer Aktiengesellschaft | Process for the production of diisocyanatodiphenyl methane isomers with an adjusted content of chlorine compounds |
DE2750975A1 (de) * | 1976-11-19 | 1978-05-24 | Mobay Chemical Corp | Verfahren zur herstellung von polyaminen der diphenylmethan-reihe |
US4294987A (en) * | 1979-12-31 | 1981-10-13 | The Upjohn Company | Process for preparing methylene dianilines |
PT77551B (de) * | 1982-10-25 | 1986-02-12 | Elprochine Ag | Verfahren zur herstellung von methylenbruecken aufweisenden polyarylaminen |
DE3407494A1 (de) * | 1984-03-01 | 1985-09-05 | Bayer Ag, 5090 Leverkusen | Verfahren zur herstellung von polyaminen und ihre verwendung zur herstellung von polyisocyanaten |
-
1987
- 1987-02-26 US US07/019,168 patent/US4792624A/en not_active Expired - Fee Related
-
1988
- 1988-02-24 JP JP63039739A patent/JPS63227609A/ja active Pending
- 1988-02-24 PT PT86816A patent/PT86816B/pt not_active IP Right Cessation
- 1988-02-25 AT AT88102832T patent/ATE71359T1/de not_active IP Right Cessation
- 1988-02-25 EP EP88102832A patent/EP0283757B1/de not_active Expired - Lifetime
- 1988-02-25 DE DE8888102832T patent/DE3867511D1/de not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
ATE71359T1 (de) | 1992-01-15 |
PT86816B (pt) | 1992-05-29 |
EP0283757A1 (de) | 1988-09-28 |
US4792624A (en) | 1988-12-20 |
JPS63227609A (ja) | 1988-09-21 |
EP0283757B1 (de) | 1992-01-08 |
PT86816A (pt) | 1988-03-01 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
DE3867511D1 (de) | Verfahren zur herstellung von polymerem mda, rueckfuehrung von polymerem mda-endprodukt. | |
DE3382050D1 (de) | Verfahren zur herstellung von polymethylenpolyphenylpolyisocyanaten. | |
DE3771683D1 (de) | Verfahren zur zweistufigen herstellung von formkoerpern. | |
ATE198741T1 (de) | Verfahren zur herstellung von uretdiongruppen aufweisenden polyisocyanaten | |
ATE268788T1 (de) | Verfahren zur herstellung von polyisocyanaten | |
DE3870161D1 (de) | Verfahren zur herstellung von urethangruppen aufweisenden polyisocyanaten. | |
GB1501574A (en) | Preparation of polymethylene polyphenyl polyamines | |
ATE2137T1 (de) | Verfahren zur herstellung von aliphatischen und cycloaliphatischen di- und polyurethanen. | |
ATE50275T1 (de) | Verfahren zur herstellung gemischter polyurethan- prepolymerer. | |
ATE54927T1 (de) | Verfahren zur herstellung von formkoerpern, verklebungen und beschichtungen aus thermoplastischen blockcopolymerisaten. | |
ES448668A1 (es) | Procedimiento para la preparacion de una mezcla de di(amino-fenil)metano y polimetilen-polifenil-poliaminas oligomeri- cas. | |
ATE162205T1 (de) | Verfahren zur herstellung von polysuccinimidpolymeren | |
ATE19508T1 (de) | Polyamine, verfahren zur herstellung von polyaminen und deren verwendung zur herstellung von polyurethanen. | |
KR930023405A (ko) | 폴리아미노-폴리아릴-폴리메틸렌계 폴리아민 혼합물의 제조 방법 | |
ATE15678T1 (de) | Verfahren zur herstellung von polyaminen und deren verwendung zur herstellung von polyurethanen. | |
ATE90668T1 (de) | Verfahren zur herstellung von blockierten harnstoffgruppenhaltigen polyisocyanaten sowie die danach hergestellten produkte. | |
ATE340204T1 (de) | Verfahren zur herstellung von mdi, insbesondere von 2,4'-mdi | |
DE3885779D1 (de) | Polyamid- und Polyharnstoffgruppen gebunden enthaltende Elastomere sowie Verfahren zur Herstellung von elastischen, kompakten oder zelligen Formkörpern hieraus. | |
ATE67486T1 (de) | Verfahren zur herstellung von n-alkyl-n'-methyl- alkylenharnstoffen, insbesondere n,n'- dimethylalkylenharnstoffen. | |
ATE33989T1 (de) | Verfahren zur herstellung von polymer-polyolen anwendbar fuer die herstellung von polyurethanen. | |
GB1458849A (en) | Process for the production of polyisocyanates | |
EP0219035A3 (de) | Verfahren zur Herstellung von Polyaminen und deren Verwendung zur Herstellung von Polyurethanen | |
ATE299858T1 (de) | Verfahren zur herstellung von diaminodiphenylmethan und seiner höheren homologen | |
KR100244696B1 (ko) | 밝은 색 폴리이소시아네이트 기재 발포체용 폴리아민의 제조 방법 | |
ATE161558T1 (de) | Verfahren zur herstellung von urethan- und harnstoffgruppen enthaltenden, kompakten oder zelligen elastomeren oder formkörpern hieraus |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
8339 | Ceased/non-payment of the annual fee | ||
8364 | No opposition during term of opposition |