抄録
Mention about the environment protection in DuPont as a whole and the possibility of efficiency improvement by Vespel[○!R] products. As environment protection the bio-based fuel and photovoltaic cell are talked. In case of the possibility of efficiency improvement we proposed three points to improve efficiency. (1) Lightweight properties: Of course the plastic material is lighter than the metal material. (2) Self-Lubricating: Vespel[○!R] has self-lubricating. This performance will be able to reduce using oil as the lubricant and protect the possibility of serious damage at mating material. (3) Seal-ring application: In this application Vespel[○!R] SP-21 seal ring which has micro cut reduces oil leakage. It protects energy loss at oil pump.
