Process for the production of foams based on aromatic isocyanates using MG(OH).sub.2 and the foams produced thereby

摘要

Combustion modified foams are produced by reacting an organic aromatic polyisocyanate with an isocyanate reactive compound in the presence of a blowing agent and Mg(OH).sub.2. The Mg(OH).sub.2 is generally used in a quantity of from 4-100 parts by weight based on the foam taken as 100 parts by weight. Mg(OH).sub.2 having a particle size of from 0.5-50 &mgr;m is preferably used. The foams produced by the process are particularly useful in construction applications.