PT86816A - Improved process for preparing polyamines - Google Patents
Improved process for preparing polyaminesInfo
- Publication number
- PT86816A PT86816A PT86816A PT8681688A PT86816A PT 86816 A PT86816 A PT 86816A PT 86816 A PT86816 A PT 86816A PT 8681688 A PT8681688 A PT 8681688A PT 86816 A PT86816 A PT 86816A
- Authority
- PT
- Portugal
- Prior art keywords
- polyamines
- polymethylene polyphenyl
- improvement
- preparing
- polyisocyanates
- Prior art date
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 (2)
Publication Number | Publication Date |
---|---|
PT86816A true PT86816A (pt) | 1988-03-01 |
PT86816B PT86816B (pt) | 1992-05-29 |
Family
ID=21791779
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PT86816A PT86816B (pt) | 1987-02-26 | 1988-02-24 | Processo aperfeicoado para a preparacao de poliaminas |
Country Status (6)
Country | Link |
---|---|
US (1) | US4792624A (pt) |
EP (1) | EP0283757B1 (pt) |
JP (1) | JPS63227609A (pt) |
AT (1) | ATE71359T1 (pt) |
DE (1) | DE3867511D1 (pt) |
PT (1) | PT86816B (pt) |
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 |
US5889070A (en) * | 1991-12-10 | 1999-03-30 | Bayer Corporation | Process for preparing polyamines and polysocyanates |
DE69212782T2 (de) * | 1991-12-10 | 1996-12-19 | Bayer Ag | Verfahren zur Herstellung von Polyaminen und Polyisocyanaten |
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 (en) * | 2007-04-06 | 2011-07-27 | Ningbo Wanhua Polyurethanes Co., Ltd. | Process for the preparation of polymethylene polyphenyl polyamine |
DE102008015123A1 (de) | 2008-03-20 | 2009-09-24 | Bayer Materialscience Ag | Verfahren zur Herstellung von Di- und Polyaminen der Diphenylmethanreihe |
EP3160936B1 (de) * | 2014-06-24 | 2021-10-13 | Covestro Intellectual Property GmbH & Co. KG | Verfahren zur herstellung von di- und polyaminen der diphenylmethanreihe |
CN106458844B (zh) | 2014-06-24 | 2019-01-15 | 科思创德国股份有限公司 | 用于制备二苯基甲烷系列的二胺和多胺的方法 |
WO2015197527A1 (de) * | 2014-06-24 | 2015-12-30 | Covestro Deutschland Ag | Verfahren zur herstellung von di- und polyaminen der diphenylmethanreihe |
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 (pt) * | 1962-07-05 | |||
BE639351A (pt) * | 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 |
DE2307864A1 (de) * | 1973-02-17 | 1974-08-22 | Bayer Ag | Verfahren zur herstellung von diaminodiarylmethanen |
DE2308014A1 (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 |
BR8305870A (pt) * | 1982-10-25 | 1984-05-29 | Elprochine Ag | Processo para a preparacao de misturas de metilenodianilina |
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 PT PT86816A patent/PT86816B/pt not_active IP Right Cessation
- 1988-02-24 JP JP63039739A patent/JPS63227609A/ja active Pending
- 1988-02-25 DE DE8888102832T patent/DE3867511D1/de not_active Expired - Fee Related
- 1988-02-25 EP EP88102832A patent/EP0283757B1/en not_active Expired - Lifetime
- 1988-02-25 AT AT88102832T patent/ATE71359T1/de not_active IP Right Cessation
Also Published As
Publication number | Publication date |
---|---|
JPS63227609A (ja) | 1988-09-21 |
US4792624A (en) | 1988-12-20 |
ATE71359T1 (de) | 1992-01-15 |
DE3867511D1 (de) | 1992-02-20 |
EP0283757B1 (en) | 1992-01-08 |
EP0283757A1 (en) | 1988-09-28 |
PT86816B (pt) | 1992-05-29 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
FG3A | Patent granted, date of granting |
Effective date: 19911128 |
|
MM3A | Annulment or lapse |
Free format text: LAPSE DUE TO NON-PAYMENT OF FEES Effective date: 19930531 |