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GB1365190A - Preparation of diaminodiarylmethanes and polyaminopolyarylmethan es - Google Patents

Preparation of diaminodiarylmethanes and polyaminopolyarylmethan es

Info

Publication number
GB1365190A
GB1365190A GB1722872A GB1722872A GB1365190A GB 1365190 A GB1365190 A GB 1365190A GB 1722872 A GB1722872 A GB 1722872A GB 1722872 A GB1722872 A GB 1722872A GB 1365190 A GB1365190 A GB 1365190A
Authority
GB
United Kingdom
Prior art keywords
preparation
methanes
polyamines
april
polyaminopolyarylmethan
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
GB1722872A
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 GB1365190A publication Critical patent/GB1365190A/en
Expired legal-status Critical Current

Links

Landscapes

  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Phenolic Resins Or Amino Resins (AREA)

Abstract

1365190 Diamino diaryl methanes and polyamines BAYER AG 14 April 1972 [16 April 1971] 17228/72 Heading C2C In a process for the production of diamino diaryl methanes and polyamino-polyaryl methanes at least one aromatic amine is heated with formaldehyde or a formaldehyde donor to a temperature above 200‹ C. in the absence of catalysts. Examples describe the preparation of diamines together with smaller amounts of polyamines from aniline, o-toluidine, N-methyl and NN-dimethyl anilines and formalin or paraformaldehyde.
GB1722872A 1971-04-16 1972-04-14 Preparation of diaminodiarylmethanes and polyaminopolyarylmethan es Expired GB1365190A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19712118490 DE2118490A1 (en) 1971-04-16 1971-04-16 Process for the production of diamino-diarylmethanes and polyaminopolyarylmethanes

Publications (1)

Publication Number Publication Date
GB1365190A true GB1365190A (en) 1974-08-29

Family

ID=5804900

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1722872A Expired GB1365190A (en) 1971-04-16 1972-04-14 Preparation of diaminodiarylmethanes and polyaminopolyarylmethan es

Country Status (8)

Country Link
BE (1) BE782050A (en)
BR (1) BR7202218D0 (en)
DE (1) DE2118490A1 (en)
ES (1) ES401812A1 (en)
FR (1) FR2136443A5 (en)
GB (1) GB1365190A (en)
IT (1) IT957621B (en)
NL (1) NL7204975A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4297294A (en) 1980-09-29 1981-10-27 Shell Oil Company Process for making 4,4'-methylene diphenyl diisocyanate

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4297294A (en) 1980-09-29 1981-10-27 Shell Oil Company Process for making 4,4'-methylene diphenyl diisocyanate

Also Published As

Publication number Publication date
BR7202218D0 (en) 1974-10-29
DE2118490A1 (en) 1972-10-26
IT957621B (en) 1973-10-20
BE782050A (en) 1972-10-13
NL7204975A (en) 1972-10-18
FR2136443A5 (en) 1972-12-22
ES401812A1 (en) 1975-03-16

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Legal Events

Date Code Title Description
PS Patent sealed
PLNP Patent lapsed through nonpayment of renewal fees