Low-permeable rubber laminate and pneumatic tire using same
AssigneeThe Yokohama Rubber Co., Ltd.
InventorNaoyuki Morooka
Life of this patent
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Abstract
A low permeability rubber laminate capable of preventing blisters formed when fabricating a pneumatic tire having a low permeability resin composition (A) layer having a air permeation coefficient, determined according to JIS K7126, of 0.5×10−12 cc·cm/cm2·sec·cmHg or less at 30° C., an average thickness d of 0.05 μm<d<5 μm and a Young's modulus E of 0.5 MPa<E<300 MPa at 160-200° C., laminated on one surface of a rubber composition (B) layer and superior in air pressure retention performance and durability and a pneumatic tire using the same as an inner liner.
Claims20
A low permeability rubber laminate comprising a low permeability resin composition (A) layer having an air permeation coefficient, determined according to JIS K7126, of 0.5×10−12 cc·cm/cm2·sec·cmHg or less at 30° C., an average thickness d of 0.05 μm<d<20 μm and a Young's modulus E of 0.5 MPa<E<300 MPa at 200° C. and a rubber composition (B) layer, laminated together.
A low permeability rubber laminate comprising a low permeability resin composition (A) layer having an air permeation coefficient, measured according to JIS K7126, of 0.5×10−12 cc·cm/cm2·sec·cmHg or less at 30° C., an average thickness d of 0.05 μm<d<20 μm and a Young's modulus E of 0.5 MPa<E<300 MPa at 200° C., sandwiched between two rubber composition (B) layers, all laminated together.
Dependencies are inferred from the claim text.