3M Innovative Properties Company

Lesbia E Giron

Stephen A Johnson

Mario Alberto Perez

Ta-Hua Yu

Rajdeep S Kalgutkar

Paul T Hines

Sebastian Goris

Mary E Johansen

A multilayer film comprises first, second, and third layers. The first layer comprises at least one aromatic polyester, and has a loss modulus at 1 hertz and 25&#xb0; C. of at least 70 megapascals. The second layer is thermoplastic and has a loss modulus at 1 hertz and 25&#xb0; C. of less than or equal to 60 megapascals and comprises a thermoplastic elastomer and a polyamide. The third layer contacts the second layer opposite the first layer and has a loss modulus at 1 hertz and 25&#xb0; C. of at least 70 megapascals. The second layer is sandwiched between the first and third layers. A method of making the multilayer film by coextrusion is also disclosed.

Multilayer film and method of making the same

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Roseville, MN, United States of America

Lesbia E Giron