Invention Application
WO2010060241A1 ACOUSTIC BAFFLE MEMBERS AND METHODS FOR APPLYING ACOUSTIC BAFFLES IN CAVITIES
审中-公开
ACOUSTIC BAFFLE会员及在CAVITIES中应用呼声障碍的方法
- Patent Title: ACOUSTIC BAFFLE MEMBERS AND METHODS FOR APPLYING ACOUSTIC BAFFLES IN CAVITIES
- Patent Title (中): ACOUSTIC BAFFLE会员及在CAVITIES中应用呼声障碍的方法
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Application No.: PCT/CN2008/073201Application Date: 2008-11-26
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Publication No.: WO2010060241A1Publication Date: 2010-06-03
- Inventor: ALLEN, Mark P , CHEN, Tao , TUDOR, Jay Michael , TURPIN, Matthew J. , METTLER, Thomas , CHEN, Bin , LIU, Xiaochun , YANG, Xiaojun
- Applicant: DOW GLOBAL TECHNOLOGIES INC. , ALLEN, Mark P , CHEN, Tao , TUDOR, Jay Michael , TURPIN, Matthew J. , METTLER, Thomas , CHEN, Bin , LIU, Xiaochun , YANG, Xiaojun
- Applicant Address: 2040 Dow Center Midland, Michigan 48674 US
- Assignee: DOW GLOBAL TECHNOLOGIES INC.,ALLEN, Mark P,CHEN, Tao,TUDOR, Jay Michael,TURPIN, Matthew J.,METTLER, Thomas,CHEN, Bin,LIU, Xiaochun,YANG, Xiaojun
- Current Assignee: DOW GLOBAL TECHNOLOGIES INC.,ALLEN, Mark P,CHEN, Tao,TUDOR, Jay Michael,TURPIN, Matthew J.,METTLER, Thomas,CHEN, Bin,LIU, Xiaochun,YANG, Xiaojun
- Current Assignee Address: 2040 Dow Center Midland, Michigan 48674 US
- Agency: GE CHENG & CO., LTD.
- Main IPC: B60R13/08
- IPC: B60R13/08 ; G10K11/162
Abstract:
An uncured acoustic absorbing member for cavity sealing comprises a thermally inert carrier (8, 28) and a thermally expandable material (6, 26) applied to the carrier (8, 28). The carrier (8, 28) contains openings (3) which become covered when the thermally expandable material (6, 26) is expanded to seal the cavity. The thermally expandable material (6, 26) may be in the form of substantially discontinuous segments (25) having an area in the range of 0.25 to 400 mm 2 . The substantially discontinuous segments (25) provide a highly uniform expansion of the material when it is thermally expanded. The acoustic absorbing members are particularly useful for sealing automotive cavities to provide acoustical abatement and to prevent the entry of fluids into the cavity.
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