PRODUCTION OF FOAMS

摘要

A method of continuous production of foamed material, wherein foam forming materials are fed from below at a controlled rate and the foamed material is drawn away from above at a corresponding rate. Foaming takes place in a diverging expansion enclosure bounded by moving sheet material fed in collapsed tubular form and constrained to follow a diverging path and draw away from above so as to travel with the foaming material at a rate corresponding to its rate of travel.