Apparatus for producing a curable polyurethane froth

Details Apparatus for producing a curable polyurethane froth Apparatus for producing a curable polyurethane froth

B - Operations, Transporting

29

B

18/677

B29B 7/74 (2006.01)

Patent

CA 1156810

12,684 APPARATUS FOR PRODUCING A CURABLE POLYURETHANE FROTH ABSTRACT OF THE DISCLOSURE Described herein is an apparatus for the contin- uous production of a curable polyurethane froth which apparatus comprises separate sources of a polyol, an isocyanate, a catalyst and an inert gas, means inclu- ding separate conduits for feeding said polyol, isocyanate and inert gas separately and under pressure at controlled flow rates from said sources to a mixing device containing inlet openings to receive said polyol, isocyanate and inert gas, means for mixing said polyol, isocyanate and inert gas to produce a froth, and an outlet opening for the resulting froth, means for delivering the froth from said mixing device to a second mixing device, a conduit for feeding the catalyst under pressure at a controlled flow rate to the second mixing device, and means for mixing the froth and catalyst, said mixing device containing inlet openings to receive the froth and catalyst and an outlet opening for the resulting catalyzed froth and means for delivering the catalyzed froth from the mixing device onto a substrate. S P E C I F I C A T I O N

368707

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