Oil and gas production handbook An introduction to oil and gas production

Linear low-density polyethylene (LLDPE) is used predominantly in 
film applications due to its toughness, flexibility and relative 
transparency. LLDPE is the preferred resin for injection molding 
because of its superior toughness 
Polyvinyl chloride (PVC). A polymer of vinyl chloride is used to make a 
diverse range of cost-effective products with various levels of technical 
performance suited to a wide range of applications. Many of these PVC 
products are used every day and include everything from medical devices 
such as medical tubing and blood bags, to footwear, electrical cables, 
packaging, stationery and toys. 
7.2.2 Propylene, derivatives  
Polypropylenes (PP) are various thermoplastic plastics or fibers that are 
polymers of propylene. Polypropylene can be made into fibers, where it is a 
major constituent in fabrics for home furnishings such as upholstery and 
carpets. Numerous industrial end uses include rope and cordage, disposable 
non-woven fabrics for diapers and medical applications. As a plastic, 
polypropylene is molded into bottles for foods and personal care products, 

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appliance housings, dishwasher-proof food containers, toys, automobile 
battery casings and outdoor furniture. 
 
Polyurethanes are used to make the foam in furniture, mattresses, car 
seats, building insulation, and coatings for floors, furniture and refrigerators. 
They are also used in artificial sports tracks, jogging shoes, and in roller 
blade wheels. (See also, Chapter 7.1.2.)