Baker & Hostetler LLP
Waterproof sound transmitting sheet, and method for producing same
Disclosed herein is a waterproof sound-transmitting sheet having high sound transfer efficiency and excellent water proofing performance and a method of producing same. The waterproof sound-transmitting sheet includes: a film-shaped sound-transmitting layer made of a first polymer material; and a webbed pigment layer formed on at least one side of the sound-transmitting layer and made of a second polymer material containing a pigment having a predetermined color, wherein the second polymer material has a melting point higher than that of the first polymer material.
AMOGREENTECH CO., LTD.
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G10K G10K B32B B32B B32B B32B D01D B32B B32B B32B B32B D01F B32B B32B B32B B32B
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In-Yong Seung-Hoon Kyung-Su Jun-Sik Yong-Sik
Seo Lee Kim Hwang Jung