ES417548A1 - Process for the preparation of polyamines - Google Patents

Process for the preparation of polyamines

Info

Publication number
ES417548A1
ES417548A1 ES417548A ES417548A ES417548A1 ES 417548 A1 ES417548 A1 ES 417548A1 ES 417548 A ES417548 A ES 417548A ES 417548 A ES417548 A ES 417548A ES 417548 A1 ES417548 A1 ES 417548A1
Authority
ES
Spain
Prior art keywords
polyamines
solvent
phase
diphenylmethane
diamino
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
Application number
ES417548A
Other languages
Spanish (es)
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Bayer AG
Original Assignee
Bayer AG
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Bayer AG filed Critical Bayer AG
Publication of ES417548A1 publication Critical patent/ES417548A1/en
Expired legal-status Critical Current

Links

Classifications

    • 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
    • C08G18/28—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
    • C08G18/30—Low-molecular-weight compounds
    • C08G18/32—Polyhydroxy compounds; Polyamines; Hydroxyamines
    • C08G18/3225—Polyamines
    • C08G18/3237—Polyamines aromatic
    • C08G18/3243—Polyamines aromatic containing two or more aromatic rings

Landscapes

  • Chemical & Material Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Phenolic Resins Or Amino Resins (AREA)
  • Low-Molecular Organic Synthesis Reactions Using Catalysts (AREA)

Abstract

Procedure for the simultaneous obtaining of polyamines rich in 2,4'-diamino-diphenylmethane and poor in 2,4'-diamino-diphenylmethane, by condensation of aniline with formaldehyde or formaldehyde-dissociating products in the presence of acidic catalysts, characterized in that the finished reaction mixture is extracted with a hydrophobic solvent, optionally with the addition of aniline and/or another base, and the phase of the solvent and the phase separated from the phase of the solvent are produced in each case independently of polyamines. (Machine-translation by Google Translate, not legally binding)
ES417548A 1972-08-04 1973-08-03 Process for the preparation of polyamines Expired ES417548A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19722238379 DE2238379C3 (en) 1972-08-04 1972-08-04 Process for the production of polyamines

Publications (1)

Publication Number Publication Date
ES417548A1 true ES417548A1 (en) 1976-03-01

Family

ID=5852643

Family Applications (1)

Application Number Title Priority Date Filing Date
ES417548A Expired ES417548A1 (en) 1972-08-04 1973-08-03 Process for the preparation of polyamines

Country Status (10)

Country Link
JP (1) JPS5719094B2 (en)
AU (1) AU477175B2 (en)
BE (1) BE803216A (en)
BR (1) BR7305887D0 (en)
DE (1) DE2238379C3 (en)
ES (1) ES417548A1 (en)
FR (1) FR2194683B1 (en)
GB (1) GB1404679A (en)
IT (1) IT990116B (en)
NL (1) NL182639C (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4201722A (en) * 1976-06-04 1980-05-06 The Upjohn Company Process for separating 4,4'-diaminodiphenylmethane
US4297294A (en) 1980-09-29 1981-10-27 Shell Oil Company Process for making 4,4'-methylene diphenyl diisocyanate
JPS61233214A (en) * 1985-04-05 1986-10-17 Mitsubishi Steel Mfg Co Ltd Torque rod
US4734716A (en) * 1986-10-30 1988-03-29 Ametek, Inc. Plotter and aligning method
EP2039676A1 (en) * 2007-09-19 2009-03-25 Huntsman International Llc Process for the production of di-and polyamines of the diphenylmethane series

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE639351A (en) * 1963-06-13
JPS5016355B1 (en) * 1969-02-01 1975-06-12

Also Published As

Publication number Publication date
DE2238379A1 (en) 1974-02-14
AU477175B2 (en) 1976-10-14
GB1404679A (en) 1975-09-03
IT990116B (en) 1975-06-20
BE803216A (en) 1974-02-04
BR7305887D0 (en) 1974-05-16
JPS5719094B2 (en) 1982-04-20
NL182639C (en) 1988-04-18
DE2238379B2 (en) 1978-12-21
FR2194683A1 (en) 1974-03-01
JPS4953686A (en) 1974-05-24
AU5876873A (en) 1975-02-06
NL182639B (en) 1987-11-16
DE2238379C3 (en) 1984-08-30
FR2194683B1 (en) 1976-11-12
NL7310655A (en) 1974-02-06

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