Invention Grant
- Patent Title: Multi-layer composite for acoustic membranes
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Application No.: US15534802Application Date: 2015-11-17
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Publication No.: US10397705B2Publication Date: 2019-08-27
- Inventor: Michael Egger , Gero Maatz
- Applicant: tesa SE
- Applicant Address: DE Norderstedt
- Assignee: TESA SE
- Current Assignee: TESA SE
- Current Assignee Address: DE Norderstedt
- Agency: Norris McLaughlin, P.A.
- Priority: DE102014225579 20141211
- International Application: PCT/EP2015/076817 WO 20151117
- International Announcement: WO2016/091542 WO 20160616
- Main IPC: H04R7/10
- IPC: H04R7/10 ; H04R7/06 ; B32B7/12 ; H04R7/02 ; B32B27/08 ; B32B27/28 ; B32B27/32 ; B32B27/40
Abstract:
Multi-layer composites and methods of using the composites as a membrane for electroacoustic transducers. The composites and methods comprise at least one first and one second outer layer, wherein at least one of the cover layers being made from a polypropylene sulfide-plastic having a halogen content not exceeding 550 ppm.
Public/Granted literature
- US20180270577A1 MULTI-LAYER COMPOSITE FOR ACOUSTIC MEMBRANES Public/Granted day:2018-09-20
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