DETROIT (July 7, 3 p.m. ET) — Toyota Motor Corp. is raising the environmental credentials for its family of Prius hybrid vehicles, using DuPont's Sorona bioresin for parts on the instrument panel air conditioning system outlet.
Sorona contains between 20-37 percent resin sourced by a renewable plant sugar. The new material being used on Toyota's Prius A car is similar to petroleum-based polybutylene terephthalate.
The Prius A — the “A” stands for alpha — is a family sedan version of the Prius, being sold only in Japan.
Wilmington, Del.-based DuPont worked with Toyota, molder Kojima Press Industry Co. Ltd. and film producer Howa Plastics Co. Ltd. — all based in Toyota City, Japan — to develop the Sorona material for the Prius A.
The instrument panel part controls the intensity and direction of air flow and had to meet Toyota requirements for heat resistance and durability, DuPont said in a July 7 news release.