MULTILAYERED SOUND ABSORPTION MATERIAL
To provide a multilayered sound absorption material that has a high effect of absorbing a wide range of sounds including low frequency sounds.SOLUTION: A multilayered sound absorption material A has a first layer 1 composed of a permeable material, a second layer 2 that is greater in flow resistance...
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| creator | MURASE MAO KOSUKEGAWA YOTA NAKAJIMA TOMONORI |
| description | To provide a multilayered sound absorption material that has a high effect of absorbing a wide range of sounds including low frequency sounds.SOLUTION: A multilayered sound absorption material A has a first layer 1 composed of a permeable material, a second layer 2 that is greater in flow resistance and smaller in thickness than the first layer 1 and is composed of a permeable material, and a third layer 3 that is greater in flow resistance and smaller in thickness than the second layer 2 and is composed of a permeable material. The first layer 1, second layer 2 and third layer 3 are laminated in the order of the first layer 1, second layer 2, and third layer 3, and the total thickness is 10 mm or more and 50 mm or less.SELECTED DRAWING: Figure 3
【課題】低周波数の音を含む広範な音に対して高い吸音効果が得られる積層吸音材を提供する。【解決手段】積層吸音材Ａが、通気性材料からなる第１の層１と、第１の層１よりも流れ抵抗が大きく厚さが小さい通気性材料からなる第２の層２と、第２の層２よりも流れ抵抗が大きく厚さが小さい通気性材料からなる第３の層３と、を有し、第１の層１と第２の層２と第３の層３とが、第１の層１、第２の層２、第３の層３の順番で積層されており、総厚さが１０ｍｍ以上かつ５０ｍｍ以下であることを特徴とする。【選択図】図３ |
| format | Patent |
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【課題】低周波数の音を含む広範な音に対して高い吸音効果が得られる積層吸音材を提供する。【解決手段】積層吸音材Ａが、通気性材料からなる第１の層１と、第１の層１よりも流れ抵抗が大きく厚さが小さい通気性材料からなる第２の層２と、第２の層２よりも流れ抵抗が大きく厚さが小さい通気性材料からなる第３の層３と、を有し、第１の層１と第２の層２と第３の層３とが、第１の層１、第２の層２、第３の層３の順番で積層されており、総厚さが１０ｍｍ以上かつ５０ｍｍ以下であることを特徴とする。【選択図】図３</description><language>eng ; jpn</language><subject>ACOUSTICS ; ACOUSTICS NOT OTHERWISE PROVIDED FOR ; LAYERED PRODUCTS ; LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT ORNON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM ; LOOMS ; METHODS OF WEAVING ; METHODS OR DEVICES FOR PROTECTING AGAINST, OR FOR DAMPING,NOISE OR OTHER ACOUSTIC WAVES IN GENERAL ; MUSICAL INSTRUMENTS ; PERFORMING OPERATIONS ; PHYSICS ; SOUND-PRODUCING DEVICES ; TEXTILES ; TRANSPORTING ; WEAVING ; WOVEN FABRICS</subject><creationdate>2021</creationdate><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=20210902&DB=EPODOC&CC=JP&NR=2021126901A$$EHTML$$P50$$Gepo$$Hfree_for_read</linktohtml><link.rule.ids>230,308,776,881,25542,76290</link.rule.ids><linktorsrc>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=20210902&DB=EPODOC&CC=JP&NR=2021126901A$$EView_record_in_European_Patent_Office$$FView_record_in_$$GEuropean_Patent_Office$$Hfree_for_read</linktorsrc></links><search><creatorcontrib>MURASE MAO</creatorcontrib><creatorcontrib>KOSUKEGAWA YOTA</creatorcontrib><creatorcontrib>NAKAJIMA TOMONORI</creatorcontrib><title>MULTILAYERED SOUND ABSORPTION MATERIAL</title><description>To provide a multilayered sound absorption material that has a high effect of absorbing a wide range of sounds including low frequency sounds.SOLUTION: A multilayered sound absorption material A has a first layer 1 composed of a permeable material, a second layer 2 that is greater in flow resistance and smaller in thickness than the first layer 1 and is composed of a permeable material, and a third layer 3 that is greater in flow resistance and smaller in thickness than the second layer 2 and is composed of a permeable material. The first layer 1, second layer 2 and third layer 3 are laminated in the order of the first layer 1, second layer 2, and third layer 3, and the total thickness is 10 mm or more and 50 mm or less.SELECTED DRAWING: Figure 3
【課題】低周波数の音を含む広範な音に対して高い吸音効果が得られる積層吸音材を提供する。【解決手段】積層吸音材Ａが、通気性材料からなる第１の層１と、第１の層１よりも流れ抵抗が大きく厚さが小さい通気性材料からなる第２の層２と、第２の層２よりも流れ抵抗が大きく厚さが小さい通気性材料からなる第３の層３と、を有し、第１の層１と第２の層２と第３の層３とが、第１の層１、第２の層２、第３の層３の順番で積層されており、総厚さが１０ｍｍ以上かつ５０ｍｍ以下であることを特徴とする。【選択図】図３</description><subject>ACOUSTICS</subject><subject>ACOUSTICS NOT OTHERWISE PROVIDED FOR</subject><subject>LAYERED PRODUCTS</subject><subject>LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT ORNON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM</subject><subject>LOOMS</subject><subject>METHODS OF WEAVING</subject><subject>METHODS OR DEVICES FOR PROTECTING AGAINST, OR FOR DAMPING,NOISE OR OTHER ACOUSTIC WAVES IN GENERAL</subject><subject>MUSICAL INSTRUMENTS</subject><subject>PERFORMING OPERATIONS</subject><subject>PHYSICS</subject><subject>SOUND-PRODUCING DEVICES</subject><subject>TEXTILES</subject><subject>TRANSPORTING</subject><subject>WEAVING</subject><subject>WOVEN FABRICS</subject><fulltext>true</fulltext><rsrctype>patent</rsrctype><creationdate>2021</creationdate><recordtype>patent</recordtype><sourceid>EVB</sourceid><recordid>eNrjZFDzDfUJ8fRxjHQNcnVRCPYP9XNRcHQK9g8KCPH091PwdQxxDfJ09OFhYE1LzClO5YXS3AxKbq4hzh66qQX58anFBYnJqXmpJfFeAUYGRoaGRmaWBoaOxkQpAgAqcyQ7</recordid><startdate>20210902</startdate><enddate>20210902</enddate><creator>MURASE MAO</creator><creator>KOSUKEGAWA YOTA</creator><creator>NAKAJIMA TOMONORI</creator><scope>EVB</scope></search><sort><creationdate>20210902</creationdate><title>MULTILAYERED SOUND ABSORPTION MATERIAL</title><author>MURASE MAO ; KOSUKEGAWA YOTA ; NAKAJIMA TOMONORI</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-epo_espacenet_JP2021126901A3</frbrgroupid><rsrctype>patents</rsrctype><prefilter>patents</prefilter><language>eng ; jpn</language><creationdate>2021</creationdate><topic>ACOUSTICS</topic><topic>ACOUSTICS NOT OTHERWISE PROVIDED FOR</topic><topic>LAYERED PRODUCTS</topic><topic>LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT ORNON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM</topic><topic>LOOMS</topic><topic>METHODS OF WEAVING</topic><topic>METHODS OR DEVICES FOR PROTECTING AGAINST, OR FOR DAMPING,NOISE OR OTHER ACOUSTIC WAVES IN GENERAL</topic><topic>MUSICAL INSTRUMENTS</topic><topic>PERFORMING OPERATIONS</topic><topic>PHYSICS</topic><topic>SOUND-PRODUCING DEVICES</topic><topic>TEXTILES</topic><topic>TRANSPORTING</topic><topic>WEAVING</topic><topic>WOVEN FABRICS</topic><toplevel>online_resources</toplevel><creatorcontrib>MURASE MAO</creatorcontrib><creatorcontrib>KOSUKEGAWA YOTA</creatorcontrib><creatorcontrib>NAKAJIMA TOMONORI</creatorcontrib><collection>esp@cenet</collection></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext_linktorsrc</fulltext></delivery><addata><au>MURASE MAO</au><au>KOSUKEGAWA YOTA</au><au>NAKAJIMA TOMONORI</au><format>patent</format><genre>patent</genre><ristype>GEN</ristype><title>MULTILAYERED SOUND ABSORPTION MATERIAL</title><date>2021-09-02</date><risdate>2021</risdate><abstract>To provide a multilayered sound absorption material that has a high effect of absorbing a wide range of sounds including low frequency sounds.SOLUTION: A multilayered sound absorption material A has a first layer 1 composed of a permeable material, a second layer 2 that is greater in flow resistance and smaller in thickness than the first layer 1 and is composed of a permeable material, and a third layer 3 that is greater in flow resistance and smaller in thickness than the second layer 2 and is composed of a permeable material. The first layer 1, second layer 2 and third layer 3 are laminated in the order of the first layer 1, second layer 2, and third layer 3, and the total thickness is 10 mm or more and 50 mm or less.SELECTED DRAWING: Figure 3
【課題】低周波数の音を含む広範な音に対して高い吸音効果が得られる積層吸音材を提供する。【解決手段】積層吸音材Ａが、通気性材料からなる第１の層１と、第１の層１よりも流れ抵抗が大きく厚さが小さい通気性材料からなる第２の層２と、第２の層２よりも流れ抵抗が大きく厚さが小さい通気性材料からなる第３の層３と、を有し、第１の層１と第２の層２と第３の層３とが、第１の層１、第２の層２、第３の層３の順番で積層されており、総厚さが１０ｍｍ以上かつ５０ｍｍ以下であることを特徴とする。【選択図】図３</abstract><oa>free_for_read</oa></addata></record> |
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| subjects | ACOUSTICS ACOUSTICS NOT OTHERWISE PROVIDED FOR LAYERED PRODUCTS LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT ORNON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM LOOMS METHODS OF WEAVING METHODS OR DEVICES FOR PROTECTING AGAINST, OR FOR DAMPING,NOISE OR OTHER ACOUSTIC WAVES IN GENERAL MUSICAL INSTRUMENTS PERFORMING OPERATIONS PHYSICS SOUND-PRODUCING DEVICES TEXTILES TRANSPORTING WEAVING WOVEN FABRICS |
| title | MULTILAYERED SOUND ABSORPTION MATERIAL |
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