Extruded structure

Details Extruded structure Extruded structure

C - Chemistry, Metallurgy

08

J

18/19

C08J 9/26 (2006.01) B29C 44/22 (2006.01) B29C 47/00 (2006.01) B29C 47/36 (2006.01) B29C 67/20 (2006.01)

Patent

CA 2030241

ABSTRACT "EXTRUDED STRUCTURE" A method of producing a porous structure in which a blend of a first thermoplastic polymer and a second, immiscible, thermoplastic polymer is extruded through a die into a structure having the desired cross section in which the polymers are present in the structure as interpenetrating networks and leaching out with a solvent for the immiscible polymer that network formed by the immiscible polymer so producing a porous structure comprising the first polymer network characterised in that a perforate barrier plate is interposed in the flow path of the blend prior to its passage out of the die.

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