Resilient tires and wheels – Tires – resilient – Pneumatic tire or inner tube
Patent
1994-02-28
1995-08-22
Knable, Geoffrey L.
Resilient tires and wheels
Tires, resilient
Pneumatic tire or inner tube
152DIG16, B60L 514
Patent
active
054431042
ABSTRACT:
Disclosed is at least a two-layered chlorinated polyethylene film for use as an inner liner for a pneumatic rubber substrate or a tire, with an inner layer adjacent an inner surface of the rubber substrate comprising an adhesive resin; and an outer layer consisting essentially of chlorinated polyethylene containing from about 35 to about 50% by weight chlorine, a derivative of 2,5-dimercapto 1-3,4 thiadiazole as a curative, an accelerator, an acid acceptor, and optionally containing carbon black. The film is from about 5 mil to about 30 mil in thickness, and has oxygen permeability from about 10 to about 60 cc-mil/100 sq.in.-atm-day. The film containing carbon black typically has an intermediate layer of a thermoplastic elastomer interposed between the adhesive layer and CPE layer. Further disclosed is a pneumatic rubber substrate or a tire incorporating chlorinated polyethylene films of the present invention.
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Davis, Jr. William H.
Dollinger Susan E.
Knable Geoffrey L.
The Dow Chemical Company
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