Laminate gas barrier layer for pneumatic tires

Resilient tires and wheels – Tires – resilient – Pneumatic tire or inner tube

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Details

152DIG16, 428215, 4284758, 4284761, 4284763, 428483, 428492, 428510, 428515, 428520, 428521, 428522, B60C 502, B32B 2504

Patent

active

059924861

ABSTRACT:
The invention provides a laminate suitable for use with a pneumatic tire having an inner liner or like air-impermeable layer capable of, for example, maintaining a requisite air pressure. The laminate I of the invention includes laminated films and a rubber layer (R), the laminated films being made of a gas barrier layer (A) and an adhesive layer (B), the layer (B) being provided on at least one side of the layer (A), the layer (A) being formed of at least one member selected from polyamide resins, polyester resins, polyarylate resins, polyamide-based alloys and polyester-based alloys, the laminated films being irradiated in at least one periphery with an electron beam, and the adhesive layer (B) being heat-bonded to the rubber layer (R). The laminate II of the invention includes laminated films and a rubber layer (R), the laminated films being made of a rubber-adhering layer (D), an adhesive layer (B) and a gas barrier layer (A), the layers (D), (B) and (A) being laminated in this order with a structure of at least three layers, the rubber-adhering layer (D) being formed of at least one polyolefin resin, the gas barrier layer (A) being formed of at least one member selected from polyamide resins, polyester resins, polyarylate resins, polyamide-based alloys and polyester-based alloys, the laminated films being irradiated in at least one periphery with an electron beam, and the rubber-adhering layer (D) being heat-bonded to the rubber layer (R).

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Database WPI, Section CH, Week 9140, Derwent Publications Ltd., London, GB; Class A35, AN 91-291510 & JP-A-03 193 312, Aug. 23, 1991.
Database WPI, Section CH, Week 9423, Derwent Publications Ltd., London, GB; Class A18, AN 94-188480 & JP-A-06 126 894, May 10, 1994.

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