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Process for manufacturing films from semi-crystalline fluid polymers by coextrusion and tubular film blowing
Process for manufacturing films from semi-crystalline fluid polymers by coextrusion and tubular film blowing
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机译:通过共挤出和管状吹膜由半结晶流体聚合物制造薄膜的方法
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摘要
A process for manufacturing thermoplastic polymer films by coextrusion comprising coextruding by blow extrusion at least two thermoplastic polymers, one of the polymers being a semi-crystalline fluid polymer, the other a thermoplastic polymer incompatible with and with no adhesive affinity for the semi-crystalline fluid polymer and possessing sufficient extrudate strength to support the semi-crystalline polymer, cooling the coextrudate, separation of the resulting films, and recovering at least the semi-crystalline thermoplastic polymer film thus formed in the form of a film of substantially uniform thickness.
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