Production of foams

Details Production of foams Production of foams

B - Operations, Transporting

29

C

18/658

B29C 67/20 (2006.01) B29C 39/16 (2006.01) B29C 44/20 (2006.01)

Patent

CA 1222855

ABSTRACT 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 drawn away from above so as to travel with the foaming material at a rate corresponding to its rate of travel.

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