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  2. Polyethylene terephthalate - Wikipedia

    en.wikipedia.org/wiki/Polyethylene_terephthalate

    Plastic bottles made from PET are widely used for soft drinks, both still and sparkling. For beverages that are degraded by oxygen, such as beer, a multilayer structure is used. PET sandwiches an additional polyvinyl alcohol (PVOH) or polyamide (PA) layer to further reduce its oxygen permeability.

  3. Plasticulture - Wikipedia

    en.wikipedia.org/wiki/Plasticulture

    A greenhouse is a large structure in which it is possible to stand and work with automated ventilation. High tunnels are hoop houses, manually ventilated by rolling up the sides. Greenhouse and high tunnel films are usually within the parameters of 80-220μm thick and 20m wide, and have a life span between 6–45 months dependent on several ...

  4. Low-density polyethylene - Wikipedia

    en.wikipedia.org/wiki/Low-density_polyethylene

    LDPE has SPI resin ID code 4 Schematic of LDPE branching structure. Low-density polyethylene (LDPE) is a thermoplastic made from the monomer ethylene.It was the first grade of polyethylene, produced in 1933 by John C. Swallow and M.W Perrin who were working for Imperial Chemical Industries (ICI) using a high pressure process via free radical polymerization. [1]

  5. Biodegradable plastic - Wikipedia

    en.wikipedia.org/wiki/Biodegradable_plastic

    A plastic is considered biodegradable if it can degrade into water, carbon dioxide, and biomass in a given time frame (dependent on different standards). Thus, the terms are not synonymous. Not all bioplastics are biodegradable. [44] An example of a non-biodegradable bioplastic is bio-based PET. PET is a petrochemical plastic, derived from ...

  6. Bears fire OC Shane Waldron; passing coordinator Thomas Brown ...

    www.aol.com/sports/bears-reportedly-fire-oc...

    The Chicago Bears have finally made a change after this weekend's awful 19-3 loss to the New England Patriots. The Bears announced Tuesday morning that offensive coordinator Shane Waldron is out ...

  7. Factbox-What to expect on Trump's Inauguration Day - AOL

    www.aol.com/news/factbox-expect-trumps...

    Trump will take the oath of office, likely administered by U.S. Supreme Court Chief Justice John Roberts, at 12 p.m. ET (1700 GMT) in front of the U.S. Capitol.

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