Pneumatic tire with air permeation preventive layer
First Claim
1. A pneumatic tire having an air permeation preventive layer comprised of a cylindrical film or sheet heat-fused into a cylindrical shape and free from any connecting portion, said cylindrical film or sheet being composed of a polymer composition containing a thermoplastic resin or a blend of a thermoplastic resin and an elastomer component and having an air permeation coefficient of not more than 25×
- 10-12 cc·
cm/cm2 ·
sec·
cmHg and a Young'"'"'s modulus of 1 to 500 MPa, wherein said film or sheet is arranged in such a manner that at least one turn of the film or sheet in the circumferential direction of the tire.
1 Assignment
0 Petitions
Accused Products
Abstract
A pneumatic tire has an air permeation preventive layer comprised of a film or sheet composed of a polymer composition containing a thermoplastic resin or a blend of a thermoplastic resin and an elastomer with an air permeation coefficient of not more than 25×10-12 cc·cm/cm2 ·sec·cmHg and a Young'"'"'s modulus of 1 to 500 MPa and wherein the film or sheet is arranged so that at least one turn of the film or sheet in the tire circumferential direction is free from a join.
81 Citations
6 Claims
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1. A pneumatic tire having an air permeation preventive layer comprised of a cylindrical film or sheet heat-fused into a cylindrical shape and free from any connecting portion, said cylindrical film or sheet being composed of a polymer composition containing a thermoplastic resin or a blend of a thermoplastic resin and an elastomer component and having an air permeation coefficient of not more than 25×
- 10-12 cc·
cm/cm2 ·
sec·
cmHg and a Young'"'"'s modulus of 1 to 500 MPa, wherein said film or sheet is arranged in such a manner that at least one turn of the film or sheet in the circumferential direction of the tire. - View Dependent Claims (2, 3, 4, 5, 6)
- 10-12 cc·
Specification