Frothing method and an apparatus for carrying out the method

Details Frothing method and an apparatus for carrying out the method Frothing method and an apparatus for carrying out the method

B - Operations, Transporting

29

B

18/677

B29B 7/76 (2006.01)

Patent

CA 1077664

ABSTRACT OF THE DISCLOSURE The invention relates to a frothing method for mixing a liquid propellant having a low boiling point with two or more reactive polymeric components for the production of foamed material, more particularly polyurethane. The invention also relates to an apparatus for carrying out the method with a mixing head for high pressure mixing of the main components in a mixing chamber. The foam production is carried out in two stages involving a first chamber for receiving and premixing reactive polymeric components, and a second chamber intersected by the first into which the mix components are advanced while the frothing propellant is injected at the intersection. The frothed reactive polymeric mix is then discharged from the second chamber into a suitable mold for forming the finished polymerized product

248570

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