Process for applying a layer of a liquid foamable reaction mixtu

Details Process for applying a layer of a liquid foamable reaction mixtu Process for applying a layer of a liquid foamable reaction mixtu

1979-04-23

1980-08-05

Anderson, Philip

Plastic and nonmetallic article shaping or treating: processes

Pore forming in situ

By gas forming or expanding

264 458, 264216, 264DIG84, B29D 2704

Patent

active

042161819

ABSTRACT:
A method for the continuous production of foam blocks or foam sandwich panels involving the application of the liquid foamable reaction mixture to the continuously moving shaping support in a manner which avoids large gas inclusions in the final product produced. The liquid foamable reaction mixture is preliminarily distributed by the use of a particular distributor channel means in a traverse direction to the continuously moving shaping support, permitted to flow in the form of a descending film exposed to the atmosphere to an intermediate storage means and then conveyed to said continuously moving shaping support. The distributor channel means may also be pivoted to control the outflow of the mixture.

REFERENCES:
patent: 3421932 (1969-01-01), McGregor et al.
patent: 3786122 (1974-01-01), Berg
patent: 3832099 (1974-08-01), Berg
patent: 3927162 (1975-12-01), Stalter
patent: 4073839 (1978-02-01), Burkholder et al.

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