Method of making transparent film from multilayer blown microfib

Plastic and nonmetallic article shaping or treating: processes – Formation of solid particulate material directly from molten... – With subsequent uniting of the particles

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264 12, 264115, 264119, D01D 512, D04H 172

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active

052484556

ABSTRACT:
Method of making a transparent film by forming two or more melt streams, combining the melt streams into a multilayer melt stream, extruding the layered melt stream and attenuating with an airstream to form multilayer microfibers, collecting the microfibers as a nonwoven web, and consolidating the web under heat and pressure. At least one of the melt streams is a thermoplastic elastomer and at least one of the melt streams is a thermoplastic material. The transparent web has a generally continuous elastomeric phase with an included array of thermoplastic microfibers.

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