DuPont Corporation

Nafion -115 purchased from DuPont Corporation. The activated carbon of Vulcan XC-72R with a specific surface area (BET) of about 250 m /g (Cabot Corp.) was used as a support for all catalysts. 

Polymers were purchased from stock (Aldrich Chemicals Co. and DuPont Corporation). These materials were dissolved in ethanol and other solvents, but ethanol was a preferable medium because it is not toxic and often used in clinical environments. The identification of the polymers follows. 

Polypropylene terephthalate, sold as Sorona by the DuPont Corporation, is made into fibers used in clothing and other materials. Although 1,3-propanediol, one of the monomers needed for its synthesis, has been prepared from petroleum feedstocks in the past, it is now available from a renewable plant source such as corn. 

Properties of DuPont Vespel parts. 1993. pp. 6-7, 10. Wilmington, DE DuPont Corporation. 

The first major dry film resist was introduced in 1970 hy the Dupont Corporation and was marketed under the trade name Riston. It has undergone many updates since then and remains fairly competitive to this day. Other dry film resists have been developed since the invention of Riston, and have found applications in printed circuit board (PCB) and printed wiring board (PWB) manufacturing. ... 

DuPont, Corporate Catalysis Center, Central Science and Engineering, Wilmington, DE 19880-0262... 

Aramid fiber is a proprietary organic product of the E. I. DuPont Corporation, marketed under the trade name Kevlar. The variant called Kevlar 49 is most useful... 

In the mid-seventies, spurred by developments from the DuPont Corporation, a new kind of two-component acrylic adhesive system was introduced to the joining industry. The DuPont technology has been widely licensed and is now referred to by numerous terms such as "second-generation acrylics", "reactive adhesives", "modified acrylics", "toughened acrylics", etc. These adhesives seemed to answer the need for improvements over some of the major disadvantages found in anaerobic structural adhesives, namely those of cost, the need for scrupulous surface preparation, and the ability to bond plastic surfaces. 

Three broad classes of these measures are trailing indicators, current indicators and leading indicators. A good combination of trailing, current and leading indicators, based on the company s own needs, is always best (Dupont Corporation 2001). 

Trailing indicators are the traditional metrics that measure past safety efforts (Dupont Corporation 2000). When using trailing indicators, data is collected after the fact (after a number of accidents or illnesses, after two years of workers compensation, etc.). Trailing indicators provide an organization with feedback in terms of how good performance has been over a period of time. Examples of trailing indicators include accident records, loss reports, injury and illness statistics, injury costs, and workers compensation costs. 

Current indicators tell an organization how well the management systems are working now, as opposed to in the past (Dupont Corporation 2000). In addition, they provide a measure of potential losses over the short term. Examples of current indicators... 

Leading indicators are those measures that can be effective in predicting future safety performance (Dupont Corporation 2000). Leading indicators can be considered before-the-fact measures. These measures assess outcome actions taken before accidents occur and are measures of proactive efforts designed to minimize losses and prevent accidents. Leading indicators can help uncover weaknesses in the organization s operations or employee behaviors before they develop into full-fledged problems. 

Dupont Corporation. 2001. Executive Safety News.Wehsite citation www.dupont.com/ safety / esnmenu.html. 

At DuPont corporation in the 1950s, as it became clear that control of nylon 6,6 production and sale would inevitably be out of the corporation s control, a polymer was synthesized, nylon 1, which was designed to allow DuPont to control another nylon-forming fiber that was of possible commercial importance. Anionic polymerization of alkyl isocyanates yields a polymer (R)NCO with stiff fiber-forming properties. However, hopes were dashed when the ceiling temperature of the polyisocyanate (nylon 1) was discovered to be near the boiling point of water. 

Commercial production started at ICI in 1938, and in 1940 polyethylene production had reached 100 tons which were utilized in early wire and cable applications to build radar systems and other applications to support the war effort. One could argue that these first 100 tons of polyethylene may have been the most important polyethylene ever manufactured. Toward the end of the war, British annual production was about 1,500 tons. In 1943, the great military significance of polyethylene led both the Union Carbide and DuPont corporations to license the ICI process and begin the manufacture of polyethylene in the United States. 

Some private-sector worksites such as the Dupont Corporation have successfully implemented an innovative written reporting system known as the Stop program, which has as its cornerstone basic hazard-recognition skills. A similar system may work well in your organization. 

---