Title:
WATERPROOF SOUND-TRANSMITTING SHEET AND METHOD FOR MANUFACTURING SAME
Document Type and Number:
WIPO Patent Application WO/2024/112094
Kind Code:
A1
Abstract:
Provided is a waterproof sound-transmitting sheet characterized by comprising a supporting substrate and a waterproof sound-transmitting layer disposed on the supporting substrate, wherein the waterproof sound-transmitting layer comprises meta-aramid fibers. In the waterproof sound-transmitting sheet according to the present invention, a pore size does not change significantly even in extreme environments of high and extremely low temperatures, and an average pore and pore distribution are maintained generally constant, and excellent water-proofing, dust-proofing, and sound-transmitting properties can thus be maintained.
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Inventors:
KIM CHAN (KR)
LEE SEOUNGHOON (KR)
SO YUNMI (KR)
LEE SEOUNGHOON (KR)
SO YUNMI (KR)
Application Number:
PCT/KR2023/018865
Publication Date:
May 30, 2024
Filing Date:
November 22, 2023
Export Citation:
Assignee:
AMOGREENTECH CO LTD (KR)
International Classes:
H04R1/02; B32B7/022; B32B7/12; B32B37/12; C09J163/00; D01D5/00; D01F6/60; H04R1/08
Foreign References:
| KR20220104937A | 2022-07-26 | |||
| JP2004242359A | 2004-08-26 | |||
| KR20140072271A | 2014-06-13 | |||
| KR20170059461A | 2017-05-30 | |||
| JP2017071131A | 2017-04-13 |
Attorney, Agent or Firm:
KIM, Churchill (KR)
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