Foam products
AssigneeBritish Industrial Plastics Limited
InventorsDennis H. Ogden, Frank G. Smith
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Abstract
Apparatus for manufacturing low density, cured urea/formaldehyde resin foams includes a centrifugal mixing head comprising a casing and an impeller rotatably mounted therein, the casing having an inlet directed generally axially with respect to the axis of rotation of the impeller and an outlet directed generally tangentially relative to said axis.
Claims9
In apparatus for producing low density, self-sustaining foams of cured urea/formaldehyde resin material, said apparatus comprising a foam generating column having inlet means for unfoamed liquid and air, outlet means for foam and a foam generating medium interposed between said inlet and outlet means,
- the improvement comprising a centrifugal mixing head positioned immediately downstream of said outlet means and including a casing, an impeller rotatably mounted therein, an inlet communicating with said outlet means and directed substantially axially with respect to the axis of rotation of the impeller and an outlet directed substantially tangentially relative to said axis, together with a nozzle for supplying unfoamed liquid to the inlet to said mixing head.
Dependencies are inferred from the claim text.