Process for the production of a ferromagnetic composition, ferromagnetic liquid crystal obtained by this process and apparatus using said liquid crystal

摘要

A composition comprising a lyotropic ferromagnetic liquid crystal. The lyotropic ferromagnetic liquid crystal contains 1 to 90% by weight of a surfactant, 1 to 90% by weight of a co-surfactant, 1 to 97% by weight of oil and 1 to 97% by weight of a polar liquid, the ratio of the co- surfactant mass to the surfactant mass is below 2. The four constituents form elongated aggregates with the surfactant and co- surfactant serving as an interface between the polar liquid and the oil and forming with the polar liquid the elongated aggregates. The aggregates contain ferromagnetic particles.