Abstract
Self-healing materials have been developed for emergency response of aerospace frames in USA. A typical example is a microcapsule-based polymer material with excellent self-healing abilities for micro-cracks. Although many self-healing materials have been created, few of them were commercialized for their high costs. In Japan scratch self-healing paints for car bodies have been developed and put on the market by a car manufacturer. These successes pushed new product developments and commercialization of self-healing materials. In near future many and various self-healing materials will be required not only in industries but also in living space.
