Triple-wall foam coextrusion apparatus

Details Triple-wall foam coextrusion apparatus Triple-wall foam coextrusion apparatus

C - Chemistry, Metallurgy

08

J

18/648

C08J 9/32 (2006.01) B29C 47/06 (2006.01) B29C 47/12 (2006.01) B29C 47/20 (2006.01) B29C 47/26 (2006.01) B29C 47/28 (2006.01) B29C 47/70 (2006.01)

Patent

CA 1291306

ABSTRACT OF THE DISCLOSURE A triple-wall foam coextrusion apparatus in which inner and outer layers of one synthetic resin material are coextruded with an intermediate layer of another synthetic resin material, and wherein the passages for the first material are inclined to the axis along which the second material is extruded around a spider to ensure uniform flow.

561307

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