Quick set ebonite composition

Abstract

A liquid ebonite mixture for coating includes two reactive components. The first component contains first unsaturated polymers having first functional groups capable of reaction at ambient condition either with or without a catalyst, a vulcanization agent, and a vulcanization activator. The second component contains second unsaturated polymers having second functional groups that will react with the first functional groups at ambient temperature. The first and the second unsaturated polymers must contain sufficient unsaturated backbones to allow vulcanization with the vulcanization agent. In addition, the second unsaturated polymers must be thermodynamically compatible with the first unsaturated polymers so that macroscopic phase separation will not occur and the vulcanization can happen homogeneously through out the coating. The first and second components further include first and second viscosity reducers, which have viscosity lower than the first and the second unsaturated polymers, for adjusting the viscosity of the liquid ebonite mixture. Furthermore, a thixotropic agent, a reinforcing agent, a vulcanization activator, a vulcanization accelerator, a solubilizer for vulcanization agent, and a catalyst also can be added into the mixture. Liquid ebonite mixture of the present invention is sprayable, and a coating formed by this liquid ebonite mixture sets up quickly without sagging and has low tackiness that allows easy handling and inspection.