Patent ID: 8821145
Filing Date: 2014-09-02
Classification: B29C,B29D,B29K

Abstract:
1. A die for coextruding a plurality of fluid layers, comprising: a. a primary forming stem; b. one or more distribution plates, each of said plates having a fluid inlet and a fluid outlet, the fluid outlet from each of said plates being in fluid communication with said primary forming stem and structured to deposit a layer of fluid onto said primary forming stem having a thickness D; and c. a microlayer assembly, comprising wherein, said thickness M of said microlayers is less than said thickness D of said fluid layer from said distribution plate, and said microlayer forming stem is in fluid communication with said primary forming stem such that said microlayered fluid mass flows from said microlayer forming stem and onto said primary forming stem in order to minimize interfacial flow instabilities.