Title:
CONSTRAINED-TYPE VIBRATION-DAMPING METAL SHEET HAVING FOAM PORES AND METHOD FOR MANUFACTURING SAME
Document Type and Number:
WIPO Patent Application WO/2022/065773
Kind Code:
A1
Abstract:
Provided are a constrained-type vibration-damping metal sheet having foam pores and a method for manufacturing same. The constrained-type vibration-damping metal sheet of the present invention comprises: a lower metal sheet; a foam resin film bonded to the lower metal sheet; and an upper metal sheet bonded to the foam resin film, wherein the foam resin film has foam pores comprising, by wt% of itself, 85-95% of a thermoplastic polyethylene resin having a number average molecular weight of 8000-12000, 0.1-1% of stearic acid, 1-5% of a styrene-ethylene-butadiene-styrene (SEBS) resin, 0.5-5% of a foaming agent, 1-4% of a dicumyl peroxide crosslinking agent, and 0.5-2% of ZnO foaming aid.
Inventors:
KIM JIN-TAE (KR)
CHOI YANG-HO (KR)
CHOI HA-NA (KR)
KANG DAE-GYU (KR)
CHOI YANG-HO (KR)
CHOI HA-NA (KR)
KANG DAE-GYU (KR)
Application Number:
PCT/KR2021/012422
Publication Date:
March 31, 2022
Filing Date:
September 13, 2021
Export Citation:
Assignee:
POSCO (KR)
International Classes:
B32B15/04; B32B5/18; B32B37/10; C08J9/00; C08K3/22; C08K5/09; C08K5/14; C08K9/10; C08L23/06; C08L25/10
Foreign References:
| JP2009090522A | 2009-04-30 | |||
| KR20050045048A | 2005-05-17 | |||
| KR20100058789A | 2010-06-04 | |||
| JP2000225664A | 2000-08-15 | |||
| JPH06316017A | 1994-11-15 | |||
| JPS5193770A | 1976-08-17 | |||
| JPS56159160A | 1981-12-08 | |||
| JPS59152847A | 1984-08-31 |
Other References:
See also references of EP 4219147A4
Attorney, Agent or Firm:
C&S PATENT AND LAW OFFICE (KR)
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