Title:
ANNULAR SOUND-ABSORBING MATERIAL, AND TIRE
Document Type and Number:
WIPO Patent Application WO/2011/083622
Kind Code:
A1
Abstract:
Provided is an annular sound-absorbing material which can be used for the inside of the air chamber of a tire, and which exerts excellent noise reduction effects. Also provided is a tire, the air chamber of which is provided with said annular sound-absorbing material, and which exerts excellent noise reduction effects. An annular sound-absorbing material contains a fiber structure, and has a thickness of 1mm or more, wherein the fiber structure fulfills the following requirement (1). The requirement (1) being that the fiber structure comprise a nonelastic crimped staple fiber and a heat-bonding composite staple fiber, in which a polymer having a melting point that is lower than that of the polymer constituting the nonelastic crimped staple fiber by 40°C or more is arranged on the surface of the heat-bonding composite staple fiber as a heat-bonding component, wherein: the nonelastic crimped staple fiber and the heat-bonding composite staple fiber are blended in a manner such that the weight ratio is between 90/10 to 10/90; the adhering points, in which the heat-bonding composite staple fiber intersect and are heat bonded to one another, and/or the adhering points, in which the heat-bonding composite staple fiber and the nonelastic crimped staple fiber intersect and are heat bonded, are dispersed in the fiber structure; and the heat-bonding composite staple fiber and the nonelastic crimped staple fiber are arranged in the thickness direction of the fiber structure.
Inventors:
SUZUKI ATSUSHI (JP)
NAGATA MAKIO (JP)
SOMA IPPEI (JP)
HAWKINS SANFORD ELLIOT (JP)
NAGATA MAKIO (JP)
SOMA IPPEI (JP)
HAWKINS SANFORD ELLIOT (JP)
Application Number:
PCT/JP2010/069801
Publication Date:
July 14, 2011
Filing Date:
November 08, 2010
Export Citation:
Assignee:
TEIJIN FIBERS LTD (JP)
ACOUSTIC INNOVATIONS CO LTD (JP)
SUZUKI ATSUSHI (JP)
NAGATA MAKIO (JP)
SOMA IPPEI (JP)
HAWKINS SANFORD ELLIOT (JP)
ACOUSTIC INNOVATIONS CO LTD (JP)
SUZUKI ATSUSHI (JP)
NAGATA MAKIO (JP)
SOMA IPPEI (JP)
HAWKINS SANFORD ELLIOT (JP)
International Classes:
B32B5/26; B60C5/00; G10K11/16; G10K11/162
Foreign References:
| JP2009186825A | 2009-08-20 | |||
| JPS56167505A | 1981-12-23 | |||
| JP2008254658A | 2008-10-23 | |||
| JP2009137568A | 2009-06-25 |
Attorney, Agent or Firm:
SHIRAI, Shigetaka (JP)
Shigetaka Shirai (JP)
Shigetaka Shirai (JP)
Download PDF:
Claims:
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