Process for the manufacture of elastic polyurethane foams capable of being flame laminated and high frequency welded

Abstract

The instant invention is directed to a process for the production of elastic polyurethane foams capable of being flame laminated and high frequency welded, comprising reacting (a) polyisocyanates with (b) polyethers having a molecular weight of from 400 to 10,000 and having at least two hydroxyl groups and (c) hydroxy-pivalic acid neopentylglycol ester of the formula: ##STR1## used in a quantity of from 1 to 20% by weight, based on the hydroxyl polyether, in the presence of a blowing agent. The instant invention is also directed to the polyurethane foams prepared thereby.

Dependencies are inferred from the claim text.