To make a test of the new salt water soap developed for the Army say Louise Feldman left, and Frances Montgomery, chemists in the DuPont Technical Laboratory at Deepwater Point, New Jersey. Miss Montgomery, using the new soap khaki colored for camouflage, got the heavy fuel oil off her hand quicker and more easily that Miss Feldman who used ordinary soap. Secret of the new soap's success is a special synthetic detergent, know n only as MP-646, developed by DuPont chemists. Both the laboratory basins contain salt water, often the only kid available to soldiers for bathing and laundry in some theaters of war.
Quilon chrome complex, a chemical that makes materials water repellent, was developed in DuPont's Industrial and Bio chemicals Department. It greatly increases the wet strength of paper and is also widely used in treating felt hats, shoe leather and garment suede. Garments of sheepskin suede treated with Quilon may be dry cleaned by ordinary methods, without special processing. Here a DuPont Chemist makes an experimental batch for test coatings.
Behind the scenes of a Avon Fashion shoot. Gloria Fiore, Avon Fashion Consultant, discusses the research and quality of Avon jewelry. Jewelry designers Jose Barrara and Kenneth Jay Lane explain their designs. After program, several jewelry pieces are shown for availability to representatives.
The unique magnetic properties of a new compound are demonstrated in this simple experiment. The compound was discovered by DuPont scientists in a fundamental research project on magnetism. A burner flame, at the left, raises the temperature of the new material and it is pulled to the permanent magnet. A similar piece on the right side of the stand was not heated and it is not attractive to the magnet. This is the unique characteristic of the new material. At and above a specific temperature it is strongly magnetic, below this temperature it becomes non magnetic.
Heat resistance of the new H film is demonstrated in a laboratory at DuPont's Experimental Station. The film is made form polymers that DuPont scientists have been working on for many years. The company is also investigating their uses as plastics, industrial finishes and coatings. DuPont is building a plant at Circleville, Ohio to manufacture H film, which has a range of properties that make it interesting for aerospace applications and in the electrical field.
Cured tire is ready to be removed from press for studies to determine role of cord in tire performance. Equipment is part of facilities for study of processing methods and development of new industrial end products of man-made fibers at DuPont's Textile Research Laboratory at Chestnut Run, near Wilmington, Delaware.
Memeger, Wesley, Jr. (interviewee), Smith, John K. (John Kenly), 1951- (interviewer), Oates, Mike (videographer), 302 Stories, Inc. (production company), Eleutherian Mills-Hagley Foundation (originator)
Wesley Memeger, Jr. details his contribution to streamlining the synthesis of Kevlar, which allowed the timely start-up of the first commercial scale Kevlar plant. In the laboratory, the polymer for Kevlar had previously been prepared by polymerizing para-phenylene diamine and terephthaloyl chloride in a mixture of two solvents, HMPA (hexamethylphosphoramide) and NMP (N-methylpyrrolidinone). Memeger found that a polymer with satisfactory molecular weight could be made using only HMPA, a discovery which made the preparation of Kevlar more commercially viable, as it allowed for a continuous polymerizer in a single solvent system.
Memeger recounts that DuPont used HMPA as the solvent for Kevlar production in the early 1970s, but after toxicology tests conducted at the company's Haskell Laboratory raised doubts about the safety of the solvent, DuPont replaced HMPA with NMP and calcium chloride. Memeger describes his subsequent work at DuPont investigating melt processible polymers, which share some properties with Kevlar but lack equivalent chemical and thermal stability, as well as his work on ring opening routes to polymers with novel properties. An accomplished artist, Memeger continues to be impressed by the elegance and simplicity of the Kevlar polymer that produces such remarkable properties.
Charcoal and sulfur, basic raw materials, are stored separately at Belin Works near Moosic, Pennsylvania then pushed in these narrow gauge cars to mill for pulverizing. The plant furnishes all DuPont's black powder customers, ranging from fisherman's supply houses which by the product for whalers' and Coast Guard line throwing guns to specialty quarries producing monumental stone.
Chemical compositions or chemically-made fibers that come in contact with the skin create specialized and challenging problems for the toxicologist. As an example, before nylon was put on the market, it was carefully tested by DuPont's toxicologist to make sure it would not cause dermatitis. First, it was applied to laboratory animals in a variety of ways. Proved harmless to them, small pieces of nylon were taped to legs or arms of hundreds of paid volunteers like those above. Patches were left on for one week, then removed for ten days and again applied. Final test of nylons purity came with wear tests of history by 5,000 women. Studies such as this which have been carried on by DuPont for many years are being continued at the Haskell Laboratory for Toxicology and Industrial Medicine near Newark, Delaware.
First panel board in company was established on a powder line to permit sage remote control operation. Here an operator starts up a mill. To insure maximum safety, DuPont's Belin Works is made up of several dozen small and independent buildings, each housing a distinct phase of the operation.
A Launderometer, a machine which tests the fastness of dyes in chemicals used in commercial laundries. Pieces of the dyed fabric are place din the jars with the chemicals and some stainless steel balls. The whole battery of jars is then revolved for the duration of the test.
A circular piece of Teflon tetrafluoroethylene resin, a DuPont industrial plastic, placed between tinfoil electrodes, is being measured for its dielectric constant and power factor at 60 to 15,000 cycles. A laboratory technician adjusts the instrument. Teflon's low dielectric loss factor makes it an excellent insulator. This plastic also withstands acids, even those which dissolve gold and platinum and retains its strength and form at high temperatures.
Panel exposure room tests performance of pigments in indoor paints in DuPont's sales service laboratory at Chestnut Run. Here technician is installing paint chips which later will be compared with identical control samples and evaluated for performance after exposure under controlled conditions.
An instron tester, capable of exerting force of 10,000 pounds, is used to determine carcass strength and record exact force required to push plunger through wall of fully inflated tired. Equipment is part of facilities for study of processing methods and development of new industrial end products of manmade fibers at DuPont's Textile Research Laboratory at Chestnut Run, near Wilmington, Delaware.
The tensile strength of fabrics is tested on this modern version of a medieval torture tack. A swathe of fabric is secured in jaws of the machine which exerts a pulling pressure to tear it apart. Point at which it tears is recorded by dial at right.
E.I. du Pont de Nemours & Company (originator), Richie, Robert Yarnall, photographer (photographer)
A chemical test at the DuPont Company's Eastern Laboratory in Gibbstown New Jersey determines moisture content in dynamite ingredients. Here a chemist boils a sample with carbon tetrachloride and measures the amount of water. At Eastern Laboratory, research is carried out on blasting supplies, dynamite and other high explosives and their intermediates and miscellaneous organic and inorganic chemicals.
E.I. du Pont de Nemours & Company (originator), Stewart, Willard S., 1915-2003 (photographer)
A physicist in DuPont's Central Research Department measures the magnetic properties of new class of antimonides discovered in a fundamental research program- chromium manganese antimonides, a new material with unique on and off magnetic characteristics. At the company's Experimental Station the Central Research Department carries out exploratory and fundamental programs in chemistry, physics and biology for the benefit of the whole company. Such research information is exchanged with other departments so that maximum advantage may be taken of findings made in various programs. Coupled with fundamental research at the Experimental Station is work aimed at the application of scientific knowledge for the development of new products and new uses.
Forney, Bob, 1927- (interviewee), Plasky, Joseph G. (interviewer)
Forney's interview chronicles the development of a continuous polymerization process for polyester fibers, including the use of the two-step pre-polymerization process, for the prototype at Seaford and the implementation at Kinston, where he moved to supervise the project. Forney also discusses his experience concerning the development of EFT and his work at Old Hickory as assistant plant manager. He also discusses the modernization of Nylon spinners in Wilmington.
Partial view of the DuPont Film Department's sales development and technical service laboratory at Chestnut Run near Wilmington, Delaware. Shows some of the equipment used in testing cellophane and other films.