Monoformylated 3,3'-diaminodipropylamines, a process for...

Details Monoformylated 3,3'-diaminodipropylamines, a process for... Monoformylated 3,3'-diaminodipropylamines, a process for...

C - Chemistry, Metallurgy

07

C

402/154, 260/557

C07C 233/36 (2006.01) C08G 18/08 (2006.01) C08G 18/10 (2006.01) C08G 18/32 (2006.01) C08G 18/83 (2006.01) C08G 59/50 (2006.01)

Patent

CA 1309728

Mo3159 LeA 25,976 MONOFORMYLATED 3,3'-DIAMINODIPROPYLAMINES, A PROCESS FOR THEIR PRODUCTION AND THEIR USE ABSTRACT OF THE INVENTION The present invention is directed to monofonmylated 3,3'-diaminodipropylamine mixtures corresponding to formulae I and II Image (I) Image (II) The present invention is also directed to a process for the production of these mixtures by reacting acrylo- nitrile and formamide in the presence of a 4-amino- pyridine derivative to form N,-N-bis-(2-cyanoethyl)- formamide which is then hydrogenated to the mono- formylated 3,3'-diaminopropylamine mixture corresponding to formulae I and II. Finally, the present invention is also directed to the use of these mixtures as chain extending agents for the preparation of polyurethanes by the polyisocyante polyaddition process. Le A 25 976

593838

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