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AssigneeJenoptik Jena G.m.b.H.
InventorsHans-Heinrich Horhold, Dieter Klemm, Klaus Bellstedt, Ludwig Haase, Joachim Klee, Klaus Schubert, Helmut Wachs, Rolf Martin
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High molecular linear, thermoplastic, epoxide-amine-adducts containing the structural segment ##STR1## are prepared by a solvent-free reaction of equivalent amounts at 20 to 200.degree. C. of N,N'-bis(aralkyl) diamines (for example, N,N'-dibenzyl-ethylenediamine, N,N'-dibenzyl-p-xylylenediamine, N,N'-dibenzyl-4,4'-diamino-diphenylmethane, N,N'-dibenzyl-3,6-dioxa-octanediamine-1,8) with diepoxides (for example, 2,2-bis(4-glycidyloxyphenyl)propane). The polyadducts are soluble and may be processed by thermoplastic methods. The polyaddition process may be conducted for the forming of shaped objects in a form-shaping vessel, for the production of coatings directly upon the surface to be coated and also in the presence of inserted materials and has, due to these characteristics, the nature of a casting system.
Process for the preparation of high molecular thermoplastic epoxide-amine-polyadducts by the reaction of diepoxides with disecondary diamines in a molar ratio of about 1:1, wherein a diepoxide is reacted with a disecondary diamine, having the structure ##STR9## where R denotes an aralkyl radical, R' denotes a difunctional radical selected from the group consisting of alkylenes, cycloalkylenes, arylenes, difunctional heterocycles and alpylene, cycloalpylene, and arylene radicals interrupted by heteroatoms, in the absence of solvents or diluents.
Dependencies are inferred from the claim text.