low-density polyethylene
51Resin identification code — Sorted household plastic waiting to be hauled away for reprocessing …
52ethylene — ethylenic /eth euh lee nik, len ik/, adj. /eth euh leen /, Chem. adj. 1. containing the ethylene group. n. 2. Also called ethene, olefiant gas. a colorless, flammable gas, C2H4, having a sweet, unpleasant odor and taste, the first member of the… …
53Barrel — For other uses, see Barrel (disambiguation). For the use of oak aging barrels in wine, see Oak (wine). Traditional oak barrels in Chile …
54Metallised film — Metallised films used for food packaging Metallised films (or metallized films) are polymer films coated with a thin layer of metal, usually aluminium. They offer the glossy metallic appearance of an aluminium foil at a reduced weight and cost.… …
55Rotational molding — or moulding is a versatile process for creating many kinds of mostly hollow plastic parts. The phrase is often shortened to rotomolding or rotomoulding.The process was developed in the 1940s but in early years was used little because it was a… …
56Check weigher — Example checkweigher. Product passes on the conveyor belt where it is weighed A checkweigher is an automatic machine for checking the weight of packaged commodities. It is normally found at the offgoing end of a production process and is used to… …
57Properties and Applications of Commercially Important Plastics, Table — ▪ Table Table 1: Properties and Applications of Commercially Important Plastics Polymer family and type density (g/cm3) degree of crystallinity glass transition temperature (° C) crystal melting temperature (° C) deflection … …
58Carton — Examples of several types of cartons for different products Carton is the name of certain types of containers typically made from paperboard which is also sometimes known as cardboard. Many types of cartons are used in packaging. Sometimes a… …
59Linear alpha olefin — Linear Alpha Olefins (LAO) or Normal Alpha Olefins (NAO) are olefins or alkenes with a chemical formula CxH2x, distinguished from other mono olefins with a similar molecular formula by linearity of the hydrocarbon chain and the position of the… …
60Ductile iron pipe — is a pipe commonly used for potable water distribution.[1] The predominant wall material is ductile iron, a spheroidized graphite cast iron, although an internal cement mortar lining usually serves to inhibit corrosion from the fluid being… …
