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US 4,732,196 AGranted
Elastomer article with amine curable layer of polymer
AssigneeThe Firestone Tire & Rubber Company
InventorsRussell W. Koch, Douglas D. Snyder
Life of this patent
Estimating the term…
Abstract
A repaired elastomer article having a cut or crack entirely therethrough. A treating agent is located about the cut portion on the inner surface of the article and an amine curable polymer or prepolymer layer resides over said treating agent. A cured elastomeric patch resides over said curable polymer. Since the amine curable polymer cures at ambient temperatures, the repair of the elastomer article can occur on site. The invention is especially useful in the repair of tires.
Claims9
A repaired elastomer article, comprising:
- the elastomer article, said elastomer article having an interior substrate, said interior substrate having cords therein, said article having a crack-cut extending therethrough, said elastomer article having an interior prepared area created by removal of one or more of said cords in the vicinity of said crack/cut;
- a treating agent, said treating agent applied to said interior prepared area of said article and surrounding said crack-cut;
- said treating agent selected from a group consisting of N-halohydrantoins, N-haloamides, N-haloimides, and combinations thereof;
- an amine curable polymer or prepolymer, said amine curable polymer or prepolymer residing on said interior treated surface, said exterior crack/cut being free of said amine curable polymer or prepolymer;
- and
- a cured elastomer patch, said patch residing over said amine curable polymer or prepolymer, said amine curable polymer or prepolymer bonded to said patch and said elastomer article at ambient temperature.
3 more elements
A repaired elastomer article, comprising:
- the elastomer article, said elastomer article having an interior substrate, said interior substrate having an innerliner layer and one or more layers located immediately thereunder, said interior substrate having cords therein, said article having a crack/cut extending therethrough including through said innerliner and said one or more layers located immediately thereunder, an interior prepared area located in the vicinity of said interior crack/cut substrate, said interior prepared area having said innerliner removed therefrom and further having one or more of said layers located immediately under said removed innerliner, said interior prepared area having one or more cords severed outside of said crack/cut area, said severed cords removed from said interior prepared area;
- a treating agent, said treating agent applied to said interior prepared area of said article and surrounding said crack/cut;
- said treating agent selected from a group consisting of N-halohydantoins, N-haloamides, N-haloimides, and combinations thereof;
- an amine curable polymer or prepolymer, said amine curable polymer or prepolymer residing on said interior treated surface, said exterior crack-cut being free of said amine curable polymer or prepolymer;
- and
- a cured elastomer patch, said patch residing over said amine curable polymer or prepolymer, said amine curable polymer or prepolymer bonded to said patch and said elastomer article at ambient temperature.
3 more elements
Dependencies are inferred from the claim text.