Invention Grant
- Patent Title: Hybrid sound absorbing sheet
- Patent Title (中): 混合吸音片
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Application No.: US12988607Application Date: 2009-04-10
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Publication No.: US08371419B2Publication Date: 2013-02-12
- Inventor: Mari Nonogi , Tetsuya Noro , Makoto Sasaki
- Applicant: Mari Nonogi , Tetsuya Noro , Makoto Sasaki
- Applicant Address: US MN Saint Paul
- Assignee: 3M Innovative Properties Company
- Current Assignee: 3M Innovative Properties Company
- Current Assignee Address: US MN Saint Paul
- International Application: PCT/US2009/040209 WO 20090410
- International Announcement: WO2009/131855 WO 20091029
- Main IPC: E04B1/82
- IPC: E04B1/82
Abstract:
A hybrid sound absorbing sheet, comprising a microperforated film and a perforated metal foil disposed on the microperforated film, is provided. Also provided is a hybrid sound absorbing sheet comprising a microperforated film and a perforated metal foil disposed on the microperforated film, wherein the perforated metal foil is embossed.
Public/Granted literature
- US20110180348A1 HYBRID SOUND ABSORBING SHEET Public/Granted day:2011-07-28
Information query
IPC分类:
