Method of making a foamable foil

Details Method of making a foamable foil Method of making a foamable foil

B - Operations, Transporting

32

B

B32B 5/20 (2006.01) B29C 44/06 (2006.01) B32B 27/06 (2006.01) B32B 27/18 (2006.01) B32B 38/08 (2006.01)

Patent

CA 2042667

ABSTRACT Title: A method of making a foamable foil This invention relates to a method of making a foamable foil of at least one thermoplastic resin with at least one liquid blowing agent incorporated therein, said method comprising forming the thermoplastic resin into a layer between two foils, said resin comprising an excess of blowing agent, to form an assembly comprising at least an intermediate layer of resin with blowing agent and two other layers, whereafter the blowing agent partly diffuses from the intermediate layer.

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