COMPOUND MEMBRANE AND ACOUSTIC DEVICE USING SAME
First Claim
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1. A compound membrane comprising:
- a polyetherimide film; and
a thermoplastic polyurethance elastomer attached to one surface of the polyetherimide film.
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Abstract
The present disclosure provides a compound membrane and an acoustic device including such a compound membrane. The compound membrane includes a polyetherimide film, and a thermoplastic polyurethance elastomer attached to one surface of the polyetherimide film.
10 Citations
6 Claims
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1. A compound membrane comprising:
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a polyetherimide film; and a thermoplastic polyurethance elastomer attached to one surface of the polyetherimide film. - View Dependent Claims (2, 3, 4)
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5. A compound membrane, comprising:
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a central portion comprising a polyetherimide film; a peripheral portion surrouding the central portion, and comprising a polyetherimide film attached with a thermoplastic polyurethance elastomer. - View Dependent Claims (6)
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Specification