PHASE SEPARATED MEMBRANE

摘要

A phase separated membrane for facilitating the control of permeation rate of a minute amount of medicine and other chemical materials and the regulation of permeation amount of the same. The membrane is constituted such that a bridged gelatin phase 1 and a non-bridged segmented polyurethane phase 2 are mixed but phase-separated. The segmented polyurethane phase is solid at normal temperature but is dissolved to become liquid at 30 to 40 DEG C which is close to the skin temperature of human being.