| abstract |
The invention relates to epoxide group-free polyadducts made from ammonia and epoxy compounds. 1 mol of ammonia is reacted with 1.2 to 2.0 equivalents of epoxide. so that when using diepoxide compounds products of the general formula (I) and (co-) use of tri- and / or tetraepoxide compounds of those of the general formula II arise in which E 1 are identical or different hydroxyl-containing divalent and E2 identical or different hydroxyl-containing trivalent or tetravalent radicals, as can be obtained by ring opening of the oxirane rings of epoxy compounds having two, three or four epoxy groups in the molecule, and n 1 , n 3 and n 5 stands for 0 to 3, n 2 and n 4 stands for 1 to 3 and X stands for 0 or 1, it being possible for one or more of the divalent radicals E 1 in the general formula (II) to be replaced by polyvalent radicals E2.n n n The polyaddition compounds according to the invention can be modified by reaction with aldehydes, ketones, monoepoxide compounds, carboxylic acids, carboxylic esters or isocyanates and by protonation with an acid and are suitable, for. B. for the cathodic electrocoating of metallic objects. |