摘要 |
A die apparatus, a method of using the die apparatus to produce co-extruded polymeric articles, and co-extruded polymeric articles produced using the die apparatus and method are disclosed. The die apparatus includes a hollow vane configured to extrude a material into a chamber within the die, thereby producing a co-extruded web. The co-extruded web has a plurality of distinct, discontinuous phases in the cross-web direction, the phases having a uniform width as shown by a coefficient of variation of less than 8 percent for any three consecutive phases. The phases are substantially continuous down-web and are surrounded by a matrix having two or more layers. |
申请人 |
3M INNOVATIVE PROPERTIES CO., SAINT PAUL |
发明人 |
NORQUIST, G.;KRUEGER, L.;SIPINEN, J.;MENZIES, H.;HANSCHEN, P.;LESEMAN, P.;MITCHELL, N.;NYGARD, C.;THALACKER, P.;OCKELOEN, JAN |