DuPont sees weak smartphone, PC and chip demand, as consumers slow spending on electronics

Shares of DuPont de Nemours Inc. took a deep dive Tuesday, after the technology-based materials and plastics company lowered its full-year outlook, as weakness in the consumer electronics markets is seen continuing for longer than previously projected.

The company, with brands including Kevlar, Corian, Tyvek, Styrofoam and Riston, reported before the open first-quarter profit and sales that fell from the same period a year ago but still beat expectations.

The…