Hogan and Banks retired in the same year, 1985. Crates and trays To begin with, polypropylene is also called, "polypropene". In 1925, research director George Oberfell convinced founder Frank Phillips to investigate additional uses for natural gas liquids. High Density Polyethylene is known for it's big strength-to-density ratio. These characteristics make Polypropylene the overwhelming choice for living hinges which are extremely thin pieces of plastic … Trash containers Moderate resistance to oils and greases 4. American Association of Chemistry Teachers, Reactions: Chemistry Science Videos & Infographics, Uses for Polypropylene and High-density Polyethylene (HDPE), Patent Litigation of Catalytic Polymerization of Propylene, Discovery of Polypropylene and High-Density Polyethylene. 1. In 1958, the U.S. Patent Office declared an interference, a proceeding in which it heard evidence regarding the claims of these and two additional companies. Hogan's father, Charles, was well known in Lowes as a farmer, mechanic and proprietor of a local store. Like HDPE it is rugged and usually resists man chemical solvents and acids. In time, Marlex® also became the preferred plastic for baby bottles (because of its ability to withstand the high temperatures of sterilization) and for safe, shatterproof containers for food and other household products. Polypropylene is very … The American Chemical Society designated the discovery of polypropylene and the development of a new high-density polyethylene process as a National Historic Chemical Landmark at Phillips Petroleum Company (now ConocoPhillips Company), on November 12, 1999… on Tue, May 17, 2016 @ 02:45. polypropylene- Is it different from HDPE? Household product bottles The American Chemical Society designated the discovery of polypropylene and the development of a new high-density polyethylene process as a National Historic Chemical Landmark at Phillips Petroleum Company (now ConocoPhillips Company), on November 12, 1999. degree in chemistry and physics from Murray State University, in Murray, Kentucky, in 1942. In 1951, polymer chemistry was still in its infancy. HDPE is stronger and more rigid than LDPE. HDPE is easy to fabricate and weld using thermoplastic … The density of polyethylene can vary from a low of 0.857 g/cm3 and to a maximum of 0.0975 gm/cm3. Trash and lawn bags, Carpeting But the company had a history of trying new ideas and supporting and funding their development. The key people at Phillips had little, if any, experience with plastics. We offer quality assured range of HDPE sheets, also known as High Density Polyethylene Sheets. In 1935, he urged the company to acquire vast quantities of natural gas acreage and to pursue research on the separation of natural gas into its various components. In a little more than a century, plastics have spread throughout the material world, moving from almost no presence at all to near ubiquity.”, — Jeffrey L. Meikle, American Plastic: A Cultural History. New Address , Business Hours: 8:00 AM - 5 PM PST, fire retardant black plastic for haunted houses. As Paul Hogan recalls it, he was standing outside the laboratory when Banks came out saying, "Hey, we've got something new coming in our kettle that we've never seen before." Bottles and containers Extrusions: Sheet, Polypropylene (PP), High Density manufacturers, service companies and distributors are listed in this trusted and comprehensive vertical portal. They fed propylene, along with a propane carrier, into a pipe packed with catalyst and waited for the expected results. Banks was born two years later, in 1921, and grew up in the southeastern Missouri community of Piedmont. Banks' father, James, was a dentist in Piedmont. Diversity in Chemistry Awards
HDPE can be more rigid as a result. Toys Patent Office actions and the court battle that followed lasted three decades and produced volumes of testimony and scientific research. HDPE is resistant to many different solvents and has a wide variety of applications. Portable gas cans For your security, this online session is about to end due to inactivity. High-density polyethylene (HDPE) is used for milk cartons, fuel tanks and pipes. HDPE has a working temperature of 212 degrees F to 200 degrees F. Polypropylene has a melting point between 266 degrees F to 340 degrees F. Polypropylene has good chemical resistance like HDPE but it has poor UV resistance -unless it is stabilized with additives. Back to National Historic Chemical Landmarks Main Page. The toy's popularity continued long enough for Phillips to improve the production process and expand the number of available product grades. Polypropylene is readily available and relatively inexpensive. Though polyethylene had been invented in the 1930s (by the British company Imperial Chemical Industries), the production process required extreme pressures of 20 to 30 thousand pounds per square inch (psi), and it produced a branched, low-density polymer. Therefore, to determine the exact density of plastic… Indeed, the court's decision contained what may be the most complete scientific record of a crystalline material. They are used in medical care and in public health and are essential materials in a variety of manufacturing industries and consumer-product companies. Microwave cookware, Food and drink containers Polypropylene has a relatively slippery surface. Bumpers Fender liners High Density Polyethylene Sheet (HDPE) YOUR STRONGEST EVERYDAY PLASTIC High Density Polyethylene (HDPE) sheet is extremely strong against impact, abrasion resistant, and exhibits a low … It is important to note that density varies with temperature. Water bottles and coolers This discovery led to the development of a new catalytic process for the making of high-density polyethylene. The properties of polypropylene depend on the molecular weight and molecular weight distribution, crystallinity, type and proportion of comonomer (if used) and the isotacticity. High Density Polyethylene Chemical resistance: 1. High Density Polyethylene (HDPE) sheet is designed to be used in the manufacturing and food processing industry as it is moisture, stain, and odor resistant. This children's toy became so immensely popular that the demand for Marlex® soared, taking the plant's entire output for nearly six months. Tubing and catheters, Highway barriers Stock items ship within 24 hours. Woven bags, Cable jacketing The Phillips Petroleum Company Hydrocarbon Research Laboratory in 1927. High-density polyethylene or HDPE is a commonly used petroleum thermoplastic and the most used of the three polyethylenes for a wide range of applications. After the war ended, both men joined Phillips as research chemists — Hogan in 1944 and Banks in 1946. Polypropylene is a lightweight and flexible thermoplastic that does not break when bent repeatedly. Pharmaceutical bottles Please visit the web to learn more about these very versatile plastics. So if Hogan and Banks's discovery was in fact serendipitous, it was not accidental: Phillips had set the stage for important innovations in the uses of natural gas. Explore chemistry education resources by topic that support distance learning. Running inside, they saw that the nickel oxide had produced the expected liquids. Density Differences: Several things differentiate polypropylene from HDPE. Today, chromium catalysts still account for most of the world's HDPE. Poor resistance to hydrocarbons (aliphatic, aromatic, halogenated) 4. Hundreds of different grades of resin are produced globally by a variety of manufacturing processes from scores of different variants on the original chromium catalyst. HDPE (high density polyethylene) is a rigid, tough plastic that offers good chemical resistance and low moisture absorption. It is often used to replace wood and … http://www.acs.org/content/acs/en/education/whatischemistry/landmarks/polypropylene.html (accessed Month Day, Year). Office furniture In less than a year, Hogan and Banks developed a new process that required only a few hundred psi — and produced a high-density polyethylene (HDPE) far stiffer, harder and more heat-resistant than anything on the market. In isotactic polypropylene, for example, the methyl groups are oriented on one side of the car… These polymers have become an integral part of our everyday lives. Density is the first factor. Phillips introduced HDPE in 1954, under the brand name Marlex® polyethylene. Not only is it one of … It is sometimes called "alkathene" or "polythene" when used for HDPE pipes. But high-density polyethylene (or HDPE) plastic has been courting my favor recently. Launch and grow your career with career services and resources. Reservoirs, Fuel Tanks The next was to use their new chromium catalyst to produce an ethylene polymer. Writing instruments, Classroom and stadium seating You'll find 10 different sizes of our 2 Mil Clear High Density Layflat Poly Bags in stock. It is a thermoplastic with a very high strength to density ratio. degree from the University of Missouri-Rolla and an M.S. Oil and gas lines Learn More. Tanks and drums Dedicated November 12, 1999, at Phillips Petroleum Company (now ConocoPhillips) in Bartlesville, Oklahoma. Two years later, Oberfell established one of the world's first hydrocarbon research laboratories, moving the company into new arenas in the production and marketing of fuels and of raw materials for the chemical industries. Adapted for the internet from “Discovery of Polypropylene and the Development of a New High-density Polyethylene,” produced by the National Historic Chemical Landmarks program of the American Chemical Society in 1999. Polypropylene is one of … High Density Polyethylene (HDPE) Sheet This sheet can be heat formed, shaped, and welded … Let ACS help you navigate your career journey with tools, personal coaching and networking. Importantly, these plastics also have created industries that provide thousands of jobs and business opportunities in this country and around the world. During World War II, Banks worked as a process engineer at an aviation gasoline plant in Coffeyville, Kansas, and Hogan became an instructor at an Army preflight school in Oklahoma. Erosion barriers However, recent innovations have … In June 1951, they set up an experiment in which they modified their original catalyst (nickel oxide) to include small amounts of chromium oxide. Continuous temperature: -50°C to +60°C, Relatively stiff material with useful temperature capabilities 5. With full support from Phillips management, Hogan and Banks quickly switched their research efforts from gasoline production to the development of plastics. Both men climbed the Phillips ladder, achieving the level of senior research associate. Packaging films Polypropylene- Is it different from HDPE? — P. M. Arnold, Vice President, Phillips R&D, The Chemist, April 1971. Find awards and scholarships advancing diversity in the chemical sciences. The Plastic Sheeting Gurus! Polypropylene (PP) is a linear hydrocarbon polymer, expressed as CnH2n. Food packaging Wire insulation, Biomedical waste containers Polypropylene has high flexural strength due to its semi-crystalline nature. The discovery of crystalline polypropylene and the development of HDPE launched what is now a multibillion-dollar industry. In the course of these investigations, Hogan and Banks began to study catalysts and what makes them work. But the market had become large and diverse and Marlex®, then produced in only one grade, was unsuitable for some applications. Inventories piled up in the warehouses. Under-hood reservoirs High density polyethylene (HDPE) offers superior corrosion resistance, a higher working temperature range, and higher tensile strength over Low density polyethylene (LDPE). Phillips Petroleum Company in Bartlesville, Oklahoma, entered the plastics business in 1951, following a discovery by researchers J. Paul Hogan and Robert L. Banks. Collaborate with scientists in your field of chemistry and stay current in your area of specialization. With a … The density of HDPE can range from 0.93 to 0.97 g/cm³. It is said that PP has an intermediate level of crystallinity between low density polyethylene (LDPE) and high density polyethylene (HDPE); On the other hand PP has higher working temperatures and tensile … Phillips president Paul Endacott was so delighted that he kept a hoop in his office for impromptu demonstrations. Reactions: Chemistry Science Videos & Infographics
CEO Lee Hinsley. Two years later, they received the Society of Chemical Industry's Perkin Medal for their contributions to chemistry. Very good resistance to alcohols, dilute acids and alkalis 3. Landfill liners Explore Career Options
Yes, I love polypropylene and polyester and silicones and all sorts of other plastics.
See our Browser Support/Compatibility page for supported browsers list. As you can see, PP has the lowest … Hogan received a B.S. Considering their similar backgrounds, it seems fitting that J. Paul Hogan (1919-2012) and Robert L. Banks (1921-1989) would eventually come together as a team. ACS Professional Education
Take action: Nominate a Landmark and Contact the NHCL Coordinator. Motor oil containers High density polyethylene, often abbreviated to HDPE, is a polymer whose monomer is ethylene. Box 8313 Chula Vista, CA 91912 866.597.9298 Warehouse & Sales Office: 1548 JayKen Way, Units C & D, Chula Vista, CA 91911 © 2008-2019 www.globalplasticsheeting.com. High density polyethylene (HDPE) is a strong, durable, lightweight, and chemically resistant plastic material popular for a variety of applications. High-density polyethylene plastic is used for purposes that require a greater tensile strength than that found in … However, HDPE is less flexible than low density … The methyl group improves mechanical properties and thermal resistance, although the chemical resistance decreases. Plastic refers to a group of synthetic … The turnaround came from an unlikely source — a large ring of plastic tubing called the hula hoop. Transparent sleeves Now, billions of pounds of polypropylene and high-density polyethylene are used each year in packaging of every shape and size, from milk jugs to large chemical drums; in toys, tools, furniture, and fibers; in water, sewer and gas pipes; and in auto parts. degree in chemical engineering from Oklahoma State University. Hogan's mother, Alma, taught elementary school. Hogan and Banks were looking at a new polymer: crystalline polypropylene. A lot of empiricism and some serendipity is needed for success in the field of industrial catalysis... serendipity in science ripens into fruition only when the unexpected phenomenon is observed by a scientist with a large bump of curiosity...". Watercraft components, It is hard to do justice to plastic because it serves so many functions, assumes so many guises, satisfies so many desires, and so quickly recedes into relative invisibility as long as it does its job well. Find a chemistry community of interest and connect on a local and global level.