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US 3,945,953 AGranted
.omega.,.omega.'-Bis-[4-amino-3-aminomethyl-piperidyl-(1)]-alkanes, process for their manufacture and their use
AssigneeCiba-Geigy Corporation
InventorHelmut Zondler
Life of this patent
Estimating the term…
Abstract
.omega.,.omega.'-bis-[4-amino-3-aminomethyl-piperidyl-(1)]-alkanes of the general formula ##SPC1## Wherein n is a number from 2 to 6, are prepared by hydrogenating, a .omega.,.omega.'-bis-[4-amino-3-cyano-1,2,5,6-tetrahydro-pyridyl-(1)]-alka ne at temperatures from 20.degree. to 280.degree.C. These polyamines are valuable hardeners for epoxide resins. They are also of interest as intermediates for organic syntheses.
Claims9
A curable mixture which is suitable for the manufacture of moulded articles, impregnations, coatings and bonds, which contains
- a. one polyepoxide compound with on average more than one 1,2-epoxide group in the molecule, and
- b. as hardener a .omega.,.omega.'-bis[4-amino-3-aminomethyl-piperidyl-(1)]-alkane of the general formula ##SPC6##
- wherein n is a number from 2 to 6.
Dependencies are inferred from the claim text.