B - Operations – Transporting – 29 – D
Patent
B - Operations, Transporting
29
D
152/100, 189/12,
B29D 30/54 (2006.01) B29C 65/48 (2006.01) B29C 73/02 (2006.01) B29C 73/16 (2006.01) F16L 55/18 (2006.01) B29C 65/00 (2006.01)
Patent
CA 1161612
ABSTRACT OF THE DISCLOSURE: A process and composition for applying and bonding a curable polymer or prepolymer, for example, an amine curable polymer or prepolymer, at ambient tempera- tures to the surface of a cured elastomer substrate. The elastomer article or substrate is treated with an organic oxidant selected from the group consisting of N-halosulfo- namides, N-halohydantoins, N-haloamides, N-haloimides, and the various iosmers of mono-, di, and trichloroisocyanuric acid. A composition of an amine curable polymer or pre- polymer is prepared with an amine curing agent. To the curing agent and curable polymer or prepolymer composition is added a polar solvent which is mixed with the resulting blend or mixture and added to the treated elastomer sur- face. The polymer or prepolymer cures at ambient tempera- ture and becomes bonded to said elastomer. The application is relatively easy, since the entire mixture is a liquid and can be applied in situ. The invention is particularly suitable for repairing various damaged elastomer articles such tires (especially off-the-road), conveyor belts, hoses, preparation of caulking or sealing compounds, and especially in bonding tire lugs or tire treads to a tire carcass.
359504
Firestone Tire & Rubber Company (the)
Robic Robic & Associes/associates
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