Pneumatic tire with air permeation prevention layer

Details Pneumatic tire with air permeation prevention layer Pneumatic tire with air permeation prevention layer

1996-03-13

2000-06-27

Knable, Geoffrey L.

Resilient tires and wheels

Tires, resilient

Pneumatic tire or inner tube

152548, 152DIG16, B60C 514

Patent

active

060794666

ABSTRACT:
A method for preventing air permeation from a pneumatic tire wherein there is arranged inside the tire an air permeation preventive layer formed of a thermoplastic resin film produced by mixing and extruding at least two thermoplastic resins which are incompatible with each other, the film having a matrix phase of a first of the resins in which there is dispersed a dispersed phase having an oriented lamellar structure and formed of a second of the resins, wherein the ratio of melt viscosity of the second resin to that of the first resin at the molding temperature of the incompatible thermoplastic resins is preferably 1.5 to 20.

REFERENCES:
patent: 3857754 (1974-12-01), Hirata et al.
patent: 4120928 (1978-10-01), Furukawa et al.
patent: 4410482 (1983-10-01), Subramanian
patent: 4770837 (1988-09-01), Lu et al.
patent: 4928741 (1990-05-01), Rye et al.

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