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公开(公告)号：US20230395056A1
公开(公告)日：2023-12-07
申请号：US18031854
申请日：2021-10-18
发明人： Nicole D. Petkovich , Michelle M. K. Mok , Michael R. Berrigan , Jonathan H. Alexander , Samantha D. Smith , Yongbeom Seo , Daniel E. Johnson
IPC分类号： G10K11/168 , G10K11/165
CPC分类号： G10K11/168 , G10K11/165
摘要： Provided herein are acoustic articles (100) that include a porous layer (102) and heterogeneous filler (104) received in the porous layer. The heterogeneous filler is substantially non-porous and present in an amount of from 0.25% to 7% by volume relative to the total volume of the porous layer and has a specific surface area of from 0.01 m2/g to 1 m2/g. The acoustic article has a flow resistance of from 500 MKS Rayls to 12,000 MKS Rayls.
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公开(公告)号：US20230326443A1
公开(公告)日：2023-10-12
申请号：US18044473
申请日：2021-09-09
发明人： Michelle M. Mok , Nicole D. Petkovich , Michael R. Berrigan , Yongbeom Seo , Andrew J. Hatch , Kevin A. Frankel , Seungkyu Lee
IPC分类号： G10K11/165 , G10K11/168 , D04H3/16 , D04H3/007 , D06M23/08 , D06M11/74 , D04H1/56 , D04H1/413 , D04H1/4291
CPC分类号： G10K11/165 , G10K11/168 , D04H3/16 , D04H3/007 , D06M23/08 , D06M11/74 , D04H1/56 , D04H1/413 , D04H1/4291 , D10B2321/022 , D06M2101/20
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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3.发明公开公开(公告)号：US20230323131A1
公开(公告)日：2023-10-12
申请号：US18024472
申请日：2021-09-03
发明人： Yongbeom Seo , Matthew H. Frey , Jacob P. Podkaminer , Victor Ho , Samuel J. Carpenter , Audrey S. Forticaux , Lalitha V. N. R. Ganapatibhotla , Taisiya Skorina , Jeremy M. Higgins , Yangbin Chen
CPC分类号： C09C1/407 , C09C3/06 , C01P2006/16
摘要： A decorated particle comprises a single inorganic particle core having an uneven outer surface with a plurality of crevices and an average particle diameter of 20 to 150 microns. A binder retaining decorating particles is disposed on at least a portion of the outer surface of the inorganic particle core and fills the crevices. The decorating particles have an average particle diameter of 0.05 to 10 microns. A method of making decorated particles is also disclosed.
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