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polyethylene bags

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  • Polyethylene — or polythene (IUPAC name poly(ethene)) is a thermoplastic commodity heavily used in consumer products (notably the plastic shopping bag). Over 60 million tons of the material are produced worldwide every year. Description Polyethylene is a… …   Wikipedia

  • polyethylene (PE) — Any of the polymers of ethylene, the largest class of plastics. Its simple basic structure, of ethylene monomers, can be linear (high density and ultrahigh molecular weight polyethylene; HDPE and UHMWPE, respectively) or branched to a greater or… …   Universalium

  • polyethylene — [[t]pɒ̱lie̱θɪliːn[/t]] N UNCOUNT Polyethylene is a type of plastic made into thin sheets or bags and used especially to keep food fresh or to keep things dry. [mainly AM] (in BRIT, usually use polythene) …   English dictionary

  • polyethylene — pol|y|eth|y|lene [ˌpɔliˈeθəli:n US ˌpa: ] n [U] AmE a strong light plastic used to make bags, sheets for covering food, small containers etc British Equivalent: polythene …   Dictionary of contemporary English

  • Polyethylene —   A registered trademark for plastic sheeting material that can be used as a vapor retarder. This plastic is used to make grocery bags. It is a long chain of carbon atoms with 2 hydrogen atoms attached to each carbon atom …   Energy terms

  • polyethylene — noun (U) AmE a strong light plastic used to make bags, sheets for covering food, small containers etc; polythene BrE …   Longman dictionary of contemporary English

  • Low-density polyethylene — LDPE has SPI resin ID code 4 Low density polyethylene (LDPE) is a thermoplastic made from petroleum. It was the first grade of polyethylene, produced in 1933 by Imperial Chemical Industries (ICI) using a high pressure process via free radical… …   Wikipedia

  • High-density polyethylene — HDPE has SPI resin ID code 2 High density polyethylene (HDPE) or polyethylene high density (PEHD) is a polyethylene thermoplastic made from petroleum. It takes 1.75 kilograms of petroleum (in terms of energy and raw materials) to make one… …   Wikipedia

  • Medium-density polyethylene — MDPE Density 0.926 0.940 g/cm3 Young modulus/ E modulus/ Tensile modulus 172–379 MPa Tensile strength(σt) 12.4–19.3 MPa Elongation @ break 100–150% …   Wikipedia

  • Thermal bags — were patented in 1983 by Ingrid Kosar of Gilberts, Illinois for the specific use of allowing delivered pizzas to stay hotter, longer.The first commercial application of the thermal bag was by the Domino s Pizza chain in 1984.American Bag Company* …   Wikipedia

  • Medium density polyethylene — Medium Density Polyethylene, or MDPE is a type of Polyethylene defined by a density range of 0.926 0.940 g/cm3. It is less dense than HDPE, which is more common.MDPE can be produced by chromium/silica catalysts, Ziegler Natta catalysts or… …   Wikipedia

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