| 摘要 |
PURPOSE:To make repairing of a molded product easy, by a method wherein a molded product of elastomer modified and crosslinked polynorbornane resin which is deformed through impact and possesses specific Izod impact strength value and a value of the coefficient of bending elasticity is heated at its restoration temperature or higher. CONSTITUTION:A molded product of elastomer modified and crosslinked polynorbornane resin, which is under a deformed state with impact from the outside and possesses specific values of Izod impact strength and the coefficient of bending elasticity which are respectively at least 20kg.cm/cm and 100kg/mm<2>, is heated at a restoration temperature of the foregoing resin and the deformed molded product is repaired. Generally, the restoration temperature falls within a temperature range of at least the thermal deformation temperature and not exceeding the decomposition temperature and the temperature higher by at least 30 deg.C than the thermal deformation temperature is suitable. Heating time is generally from several seconds to scores of minutes, suitably 1-20 minutes. |
