DuPont Permasep Products records1969-2003 Majority of material found within 1970-1980
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. This collection documents the marketing and patenting efforts of DuPont on behalf of their Permasep® product line.
- Majority of material found within 1970-1980
- E.I. du Pont de Nemours & Company (Organization)
3 Linear Feet
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. DuPont designed two types of permeator membranes: hollow-fiber and spiral-wound.
DuPont made the hollow-fiber B-9, the first Permasep permeator commercially available, in 1969. Following the introduction of the B-9, DuPont continued to unveil new and refined permeator models. For its innovation in developing the Permasep B-9 permeator, the company was awarded chemical engineering's Kirkpatrick Chemical Engineering Achievement Award in 1971. DuPont introduced the B-10 permeator, the first permeator to make seawater desalination commercially feasible, in 1974. In 1989, DuPont Permasep patented a chloramines process that created reliable biological control of surface seawater plants and prevented the formation of trihalomethanes created when water is treated with chlorine. In 1991, DuPont sold the spiral-wound permeator section of their business to TriSep. The sale of the spiral-wound permeators left DuPont to focus on developing more efficient hollow-fiber permeators. In 1992, DuPont introduced the B-10 Twin permeator. The Twin drastically reduced operating costs and was more efficient than the standard B-10. Permasep, originally part of the DuPont Company's polymer sector, was switched to the fibers sector in 1993, where it joined fibers like Kevlar and Nomex.
By 1997, DuPont had sold over 1.5 billion gallons of desalting capacity. DuPont had Permasep sales offices in seven countries: United States, Japan, United Kingdom, Switzerland, Saudi Arabia, Germany, and Belgium. These offices sold Permasep products across the globe, especially to the Middle East. Customers there included Jordan, Kuwait, Libya, United Arab Emirates, Iraq, Iran, Saudi Arabia, and Bahrain, which had the world's largest reverse osmosis plant. Other countries include Malta, the Canary Islands, Italy, Venezuela, Chile, Morocco, and Singapore. Despite Permasep's success, DuPont decided to discontinue the production of hollow-fiber permeators in 1997. The reverse osmosis market slowly shifted away from hollow-fiber permeators toward spiral-wound permeators. This shift was the deciding factor in the decision to discontinue production.
The materials in the Permasep® Collection were donated by the DuPont Corporate Records and Information Management Department (CRIM). The materials arrived from CRIM arranged in binders that contained either promotional or technical material. An accompanying inventory gave a brief description of the binder contents and approximate dates for the material. The collection is arranged chronologically by series. The materials that were in the binders have been removed and placed in folders. The material in each binder takes up several folders. Each folder is numbered and grouped with the other folders from a single binder.
The collection is arranged in two series. Series I. Promotional material includes Permasep® articles from the DuPont Magazine, marketing information for the B-9, licenses and agreements, press releases, product bulletins, installation guides, product facts, website information, consulting reports, product literature, brochures, and image studies. Series II. Technical material is divided into three sub-series: Sub-Series A: Manuals; Sub-Series B: Patent information; and Sub-Series C: Reports. The series includes product manuals, acid storage manuals, an engineering design manual, technical information manuals for the B-9 and B-10, patents and patent infringement cases, and reports on reverse osmosis.
Scope and Contents
This collection documents the marketing and patenting efforts of DuPont on behalf of their Permasep® product line. Permasep® was the leading maker of reverse osmosis permeators, and this collection reflects the global scope of their activities. The marketing materials include press releases, brochures, license agreements, magazine articles, product bulletins, fact sheets, website information, and sales kits. The technical aspects of the collection focus on Permasep® patents, patent infringement cases, specifications for various Permasep® products, user manuals, and technical reports and publications discussing reverse osmosis methods.
Records less than twenty-five years old are closed.
DuPont Permasep Products photographs (Accession 2007.213), Audiovisual Collections and Digital Initiatives Department, Hagley Museum and Library.
- E.I. du Pont de Nemours & Company (Organization)
Finding Aid & Administrative Information
- DuPont Permasep Products records
- Jason Sylvestre
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- 2021: Laurie Sather