KR102601130B1 - 적층 흡음재 - Google Patents
적층 흡음재 Download PDFInfo
- Publication number
- KR102601130B1 KR102601130B1 KR1020207026401A KR20207026401A KR102601130B1 KR 102601130 B1 KR102601130 B1 KR 102601130B1 KR 1020207026401 A KR1020207026401 A KR 1020207026401A KR 20207026401 A KR20207026401 A KR 20207026401A KR 102601130 B1 KR102601130 B1 KR 102601130B1
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- South Korea
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- sound absorption
- sound
- absorption coefficient
- layer
- fiber layer
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Images
Classifications
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Landscapes
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Abstract
Description
Claims (7)
- 적어도 제1 섬유층과 제2 섬유층과, 상기 제1 섬유층과 제2 섬유층 사이에 존재하는 적어도 1층의 기재층을 포함하는 적층 흡음재로서,
상기 제1 섬유층은, 평균 유량 세공 지름이 0.5∼10 μm이고, 목부가 0.1∼200 g/m2이고,
상기 제2 섬유층은, 평균 유량 세공 지름이 0.5∼10 μm이고, 또한 제1 섬유층의 평균 유량 세공 지름보다 작고, 목부가 0.1∼200 g/m2이고,
상기 기재층은, 프레이저형 법에 의한 통기도가 40 cc/cm2·s 이상이고, 목부가 1∼700 g/m2이고,
상기 제1 섬유층이 소리의 입사측, 상기 제2 섬유층이 소리의 투과측이 되도록 배치되는, 적층 흡음재. - 청구항 1에 있어서,
상기 제1 섬유층, 상기 제2 섬유층 및 상기 기재층이 독립적으로 부직포 및 직포로 이루어지는 군에서 선택되는 적어도 하나인, 적층 흡음재. - 청구항 1 또는 2에 있어서,
상기 기재층이 폴리에틸렌테레프탈레이트, 폴리뷰틸렌테레프탈레이트, 폴리에틸렌 및 폴리프로필렌으로 이루어지는 군에서 선택되는 적어도 1종 또는 적어도 2종이 복합화된 섬유를 포함하고, 상기 제1 섬유층 및 제2 섬유층이 독립적으로 폴리불화 바이닐리덴, 나일론 6,6, 폴리아크릴로나이트릴, 폴리스타이렌, 폴리유레테인, 폴리설폰, 폴리바이닐알코올, 폴리에틸렌테레프탈레이트, 폴리뷰틸렌테레프탈레이트, 폴리에틸렌 및 폴리프로필렌으로 이루어지는 군에서 선택되는 적어도 1종의 섬유를 포함하는, 적층 흡음재. - 청구항 1 또는 2에 있어서,
수직 입사 흡음률 측정법에 있어서, 주파수가 900 Hz부터 1120 Hz까지인 흡음률의 측정에 의해 흡음률의 평균 흡음률(α)을 산출하고, 평균 흡음률(α)의 값이 하기 식을 만족시키는 범위인, 적층 흡음재.
1.00≥α≥0.22 - 청구항 1 또는 2에 있어서,
수직 입사 흡음률 측정법에 있어서, 주파수가 2800 Hz부터 3550 Hz까지인 흡음률의 측정에 의해 흡음률의 평균 흡음률(β)을 산출하고, 평균 흡음률(β)의 값이 하기 식을 만족시키는 범위인, 적층 흡음재.
1.00≥β≥0.60 - 청구항 1 또는 2에 있어서,
수직 입사 흡음률 측정법에 있어서, 주파수가 4500 Hz부터 5600 Hz까지인 흡음률의 측정에 의해 흡음률의 평균 흡음률(γ)을 산출하고, 평균 흡음률(γ)의 값이 하기 식을 만족시키는 범위인, 적층 흡음재.
1.00≥γ≥0.90 - 청구항 1 또는 2에 있어서,
수직 입사 흡음률 측정법에 있어서, 주파수가 9000 Hz부터 11200 Hz까지인 흡음률의 측정에 의해 흡음률의 평균 흡음률(η)을 산출하고, 평균 흡음률(η)의 값이 하기 식을 만족시키는 범위인, 적층 흡음재.
1.00≥η≥0.85
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| US20130112499A1 (en) | 2011-11-09 | 2013-05-09 | Dale S. Kitchen | Acoustic composite |
| JP2014130363A (ja) * | 2007-12-20 | 2014-07-10 | E.I.Du Pont De Nemours And Company | バリア表面材を有する吸音材 |
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| JP3705419B2 (ja) * | 2000-11-27 | 2005-10-12 | 東洋紡績株式会社 | 軽量吸音材 |
| JP3968648B2 (ja) * | 2002-06-18 | 2007-08-29 | 東洋紡績株式会社 | 吸音材 |
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- 2019-02-26 US US16/978,712 patent/US11801660B2/en active Active
- 2019-02-26 KR KR1020207026401A patent/KR102601130B1/ko active Active
- 2019-02-26 CN CN201980017119.0A patent/CN111819075A/zh active Pending
- 2019-02-26 WO PCT/JP2019/007271 patent/WO2019172016A1/ja not_active Ceased
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Also Published As
| Publication number | Publication date |
|---|---|
| CN111819075A (zh) | 2020-10-23 |
| WO2019172016A1 (ja) | 2019-09-12 |
| JP6660035B2 (ja) | 2020-03-04 |
| KR20200130304A (ko) | 2020-11-18 |
| US20210094258A1 (en) | 2021-04-01 |
| EP3763521B1 (en) | 2022-07-27 |
| JP2019155640A (ja) | 2019-09-19 |
| EP3763521A4 (en) | 2021-12-01 |
| EP3763521A1 (en) | 2021-01-13 |
| US11801660B2 (en) | 2023-10-31 |
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