Title:
LOW-PERMEABLE RUBBER LAMINATE AND PNEUMATIC TIRE USING SAME
Document Type and Number:
WIPO Patent Application WO/2007/083785
Kind Code:
A1
Abstract:
Disclosed is a low-permeable rubber laminate which is obtained by arranging a low-permeable resin composition layer (A) on one side of a rubber composition layer (B). The low-permeable resin composition layer (A) has an air permeability coefficient at 30˚C (as measured in accordance with JIS K7126) of not more than 0.5 × 10-12 cc·cm/cm2·sec·cmHg, an average thickness d of 0.05 μm < d < 5 μm, and a Young's modulus E at 160-200˚C of 0.5 MPa < E < 300 MPa. The low-permeable rubber laminate is excellent in air pressure maintaining performance and durability, and enables to prevent occurrence of blisters during formation of a pneumatic tire. Also disclosed is a pneumatic tire using such a low-permeable rubber laminate in an inner liner.
Inventors:
MOROOKA NAOYUKI (JP)
Application Number:
PCT/JP2007/050866
Publication Date:
July 26, 2007
Filing Date:
January 16, 2007
Export Citation:
Assignee:
YOKOHAMA RUBBER CO LTD (JP)
MOROOKA NAOYUKI (JP)
MOROOKA NAOYUKI (JP)
International Classes:
B32B25/08; B60C5/14
Domestic Patent References:
| WO2006059621A1 | 2006-06-08 |
Foreign References:
| JP2000136281A | 2000-05-16 | |||
| JP2004176048A | 2004-06-24 | |||
| JP2002079804A | 2002-03-19 | |||
| JPH01314164A | 1989-12-19 | |||
| JP2001151972A | 2001-06-05 | |||
| JPS62225543A | 1987-10-03 | |||
| JPH08132553A | 1996-05-28 |
Other References:
See also references of EP 1974907A4
Attorney, Agent or Firm:
AOKI, Atsushi et al. (Toranomon 37 Mori Bldg. 5-1, Toranomon 3-chom, Minato-ku Tokyo 23, JP)
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