JP7745748B2 - 吸音材 - Google Patents

吸音材

Info

Publication number
JP7745748B2
JP7745748B2 JP2024512487A JP2024512487A JP7745748B2 JP 7745748 B2 JP7745748 B2 JP 7745748B2 JP 2024512487 A JP2024512487 A JP 2024512487A JP 2024512487 A JP2024512487 A JP 2024512487A JP 7745748 B2 JP7745748 B2 JP 7745748B2
Authority
JP
Japan
Prior art keywords
layer
nonwoven fabric
sound
sec
absorbing material
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
JP2024512487A
Other languages
English (en)
Japanese (ja)
Other versions
JPWO2023190398A1 (https=
Inventor
太郎 市川
千秋 花巻
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Mitsui Chemicals Asahi Life Materials Co Ltd
Original Assignee
Mitsui Chemicals Asahi Life Materials Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Mitsui Chemicals Asahi Life Materials Co Ltd filed Critical Mitsui Chemicals Asahi Life Materials Co Ltd
Publication of JPWO2023190398A1 publication Critical patent/JPWO2023190398A1/ja
Application granted granted Critical
Publication of JP7745748B2 publication Critical patent/JP7745748B2/ja
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10K—SOUND-PRODUCING DEVICES; METHODS OR DEVICES FOR PROTECTING AGAINST, OR FOR DAMPING, NOISE OR OTHER ACOUSTIC WAVES IN GENERAL; ACOUSTICS NOT OTHERWISE PROVIDED FOR
    • G10K11/00—Methods or devices for transmitting, conducting or directing sound in general; Methods or devices for protecting against, or for damping, noise or other acoustic waves in general
    • G10K11/16—Methods or devices for protecting against, or for damping, noise or other acoustic waves in general
    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10K—SOUND-PRODUCING DEVICES; METHODS OR DEVICES FOR PROTECTING AGAINST, OR FOR DAMPING, NOISE OR OTHER ACOUSTIC WAVES IN GENERAL; ACOUSTICS NOT OTHERWISE PROVIDED FOR
    • G10K11/00—Methods or devices for transmitting, conducting or directing sound in general; Methods or devices for protecting against, or for damping, noise or other acoustic waves in general
    • G10K11/16—Methods or devices for protecting against, or for damping, noise or other acoustic waves in general
    • G10K11/162—Selection of materials
    • G10K11/168—Plural layers of different materials, e.g. sandwiches

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Multimedia (AREA)
  • Laminated Bodies (AREA)
JP2024512487A 2022-03-31 2023-03-27 吸音材 Active JP7745748B2 (ja)

Applications Claiming Priority (5)

Application Number Priority Date Filing Date Title
JP2022061014 2022-03-31
JP2022061014 2022-03-31
JP2023006893 2023-01-19
JP2023006893 2023-01-19
PCT/JP2023/012311 WO2023190398A1 (ja) 2022-03-31 2023-03-27 吸音材

Publications (2)

Publication Number Publication Date
JPWO2023190398A1 JPWO2023190398A1 (https=) 2023-10-05
JP7745748B2 true JP7745748B2 (ja) 2025-09-29

Family

ID=88202263

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2024512487A Active JP7745748B2 (ja) 2022-03-31 2023-03-27 吸音材

Country Status (2)

Country Link
JP (1) JP7745748B2 (https=)
WO (1) WO2023190398A1 (https=)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
TW202540518A (zh) * 2023-12-28 2025-10-16 日商三井化學股份有限公司 不織布積層體及不織布積層體之製造方法

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2021192983A (ja) 2017-03-31 2021-12-23 三井化学株式会社 積層体及び吸音材
WO2022009835A1 (ja) 2020-07-07 2022-01-13 三井化学株式会社 複合不織布及びその製造方法

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2021192983A (ja) 2017-03-31 2021-12-23 三井化学株式会社 積層体及び吸音材
WO2022009835A1 (ja) 2020-07-07 2022-01-13 三井化学株式会社 複合不織布及びその製造方法

Also Published As

Publication number Publication date
WO2023190398A1 (ja) 2023-10-05
JPWO2023190398A1 (https=) 2023-10-05

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