Application of ambient temperature cured polymers of prepolymers to a cured elastomer
申请人:THE FIRESTONE TIRE & RUBBER COMPANY
公开号:EP0123070A2
公开(公告)日:1984-10-31
A process and composition for applying and bonding an amine curable polymer or prepolymer at ambient temperatures to the surface of a cured elastomer substrate. The elastomer article or substrate is treated with an organic oxidant such as an N-halohydantoin, N-haloamide, or an N-haioimide, for example, the various isomers of mono-, di-, and trichloroisocyanuric acid. A polyisocyanate is applied thereto. A composition of the amine curable polymer or prepolymer 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 surface; said polymer or prepolymer cures at ambient temperature 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 as 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.
一种在环境温度下将胺固化聚合物或预聚物涂抹和粘合到固化弹性体基材表面的工艺和组合物。用有机氧化剂,如 N-卤代海因、N-卤代酰胺或 N-卤代亚胺,例如一氯、二氯和三氯异氰尿酸的各种异构体,处理弹性体制品或基材。多异氰酸酯用于其中。用胺固化剂制备胺固化聚合物或预聚物的组合物。在固化剂和可固化聚合物或预聚物组合物中加入极性溶剂,将其与所得混合物或混合料混合并加入处理过的弹性体表面;所述聚合物或预聚物在环境温度下固化并与所述弹性体粘合。由于整个混合物都是液体,可以就地使用,因此使用起来相对容易。本发明特别适用于修复各种受损的弹性体,如轮胎(尤其是越野轮胎)、传送带、软管,制备填缝剂或密封化合物,尤其适用于将胎耳或胎面粘合到轮胎胎体上。