Finding Aids

E.I. du Pont de Nemours & Company is a chemical company commonly known as the DuPont Company. DuPont introduced its first reverse osmosis permeators for water desalination in 1969 under the trade name "Permasep" as a result of its contusion research in polymer chemistry and synthetic fibers. The collection documents the manufacture and operational use of the Permasep® product line. The collection consists of photographs, slides, videocassettes, and marketing materials that document the DuPont Company's involvement in the Permasep® product line. The bulk of the collection are slides of desalination plant views, including interior and exterior views. This collection includes slide presentations, brochures, and videocassettes promoting Permasep®. Researchers interested in industrial reverse osmosis systems may find this collection useful.

Joseph M. Rule (1922-2017) was a chemist and industrial marketing analyst in the Marketing Research Division of the Development Department at the DuPont Company. Later he became senior community affairs consultant in the Public Affairs Department. This small collection consists of materials from Rule's work for the Marketing Research Department. The materials include market research reports, DuPont Elastomers architectural files, and advertisements.