US Patent 7351757 Vibration-damping engineering plastics

The invention relates to vibration-damping engineering plastics which can be used in a wide variety of fields such as electronic equipments, electronic materials, household appliances, automobile/other transport instruments, industrial machine parts, precision instruments, building materials, sporting/leisure goods, and articles for daily use, and which includes thermoplastic engineering plastics as a base polymer and an organic vibration-damping agent incorporated into the base polymer, the organic vibration damping agent has one or more members selected from a compound having a benzothiazyl group, a compound having a benzotriazole group, a compound having a diphenyl acrylate group and a compound having a benzophenone group.