Condensation product prepared from N,N'-ethylene-urea and formaldehyde
AssigneeMontedison S.p.A.
InventorsOsvaldo Cicchetti, Spartaco Fontani, Gianluigi Landoni, Renato Locatelli, Guido Bertelli, Pierpaolo Roma
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Abstract
There is disclosed a solid and water-insoluble condensation product of N,N'-ethyleneurea with formaldehyde, having the structure ##STR1## wherein n is an integer from 20 to 60 with a mean value of 41, and having an average number molecular weight M.sub.n ranging from 2000 to 6000. Said product, when added to a polymer in combination with an ammonium phosphate, results in the production of articles which are resistant to heat and to thermo-oxidation.
Claims4
A solid and water-insoluble condensation product of N,N'-ethyleneurea and formaldehyde, characterized by the structure ##STR3## wherein n is an integer from 20 to 60 having a mean value of 41, and by an average number molecular weight M.sub.n ranging from 2,000 to 6,000.
Dependencies are inferred from the claim text.