Process for the manufacture of polyurethanes alveolar possibly.

THE EVENTUALLY POLIURETANOS CELL FORM IS PROCESSED BY TRANSFORMING A) polyisocyanates with B) MIX FROM ALFA) SALTS OF FATTY ACID WITH FATTY polyols and BETA) fatty acid esters nonfunctional AND / OR OIL AND EVENTUALLY C) AT LEAST TWO compounds exhibiting active hydrogen atoms AGAINST ISOCYANATE a molecular weight from 62 to 399 and optionally D) at least two compounds exhibiting active hydrogen atoms AGAINST isocyanates molecular weight from 400 to 10,000, optionally in the presence of E) MEDIA KNOWN IMPULSION, cATALYSTS AND OTHER ADDITIONAL AND AUXILIARY MEANS.