- 专利标题: ACOUSTIC ABSORBING FILLER AND RELATED ACOUSTIC ARTICLE
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申请号: US18044473申请日: 2021-09-09
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公开(公告)号: US20230326443A1公开(公告)日: 2023-10-12
- 发明人: Michelle M. Mok , Nicole D. Petkovich , Michael R. Berrigan , Yongbeom Seo , Andrew J. Hatch , Kevin A. Frankel , Seungkyu Lee
- 申请人: 3M INNOVATIVE PROPERTIES COMPANY
- 申请人地址: US MN St. Paul
- 专利权人: 3M INNOVATIVE PROPERTIES COMPANY
- 当前专利权人: 3M INNOVATIVE PROPERTIES COMPANY
- 当前专利权人地址: US MN St. Paul
- 国际申请: PCT/IB2021/058213 2021.09.09
- 进入国家日期: 2023-03-08
- 主分类号: G10K11/165
- IPC分类号: G10K11/165 ; G10K11/168 ; D04H3/16 ; D04H3/007 ; D06M23/08 ; D06M11/74 ; D04H1/56 ; D04H1/413 ; D04H1/4291
摘要:
An acoustic absorbing filler, the acoustic absorbing filler comprising agglomerates comprising a first phase comprising a plurality of porous particulates and a second phase comprising a binder; wherein the acoustic absorbing filler has a median sieved particle size of from 100 micrometer to 700 micrometers and a specific surface area of from 50 m2/g to 900 m2/g; wherein the acoustic absorbing filler has a normal incidence acoustic absorption of no less than 0.20 alpha at 400 Hz.
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