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Composite Materials
Encyclopedia entry from: UXL Encyclopedia of Science
...composite materials. Thin sheets of aluminum metal are attached to polyurethane foam. The polyurethane foam is itself a composite consisting of air mixed with polyurethane. Joining the polyurethane foam to the aluminum makes the aluminum...
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Glycol
Encyclopedia entry from: The Gale Encyclopedia of Science
...number of identical repeating units. Polyurethane — A polymer formed through...diethylene glycol in the manufacture of polyurethane and unsaturated polyester resins. Propylene glycol is used to make polyurethane foam used in
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SIC 2385 Waterproof Outerwear
Encyclopedia entry from: Encyclopedia of American Industries
...1987. The 1990s brought a return of polyurethane-coated fabrics to the forefront of raincoat fashion. Polyurethane gives fabrics the shiny look associated...used to back a very thin layer of polyurethane, creating a much more comfortable...
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Bandages and Dressings
Encyclopedia entry from: Gale Encyclopedia of Surgery: A Guide for Patients and Caregivers
...attached to a foam sheet or a thin polyurethane film. Hydrofibers. Similar in appearance...compression bandages, or pneumatic pump. Polyurethane foam dressings. These are sheets of...films. These consist of a thin, clear polyurethane sheet that, on one side, has a special...
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Eyeglasses and Contact Lenses
Encyclopedia entry from: Gale Encyclopedia of Children's Health: Infancy through Adolescence
...early 2000s eyeglass wearers can choose polycarbonate or polyurethane materials for their lenses. Polycarbonate is the most impact-resistant material available for eyewear, and polyurethane has exceptional optical qualities and an index of refraction...
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polyurethanes
Book article from: The Columbia Encyclopedia, Sixth Edition
...plastics that may be either thermosetting or thermoplastic. Polyurethane can be made into both flexible and rigid foams. The flexible...shoe heels. Lycra, a fiber used in stretch clothing, is a polyurethane. Polyurethanes are also used as decorative and protective...
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SIC 3086 Plastics Foam Products
Encyclopedia entry from: Encyclopedia of American Industries
...connected, thus giving it a spongy structure. Polystyrene and polyurethane are used for rigid foams and vinyls and cellulose acetate...most grades of foam. More than half of foamed plastic is polyurethane, and the rest consists of expandable polystyrene and vinyl...
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Condom
Encyclopedia entry from: Gale Encyclopedia of Medicine, 3rd ed.
...Definition Male condoms are thin sheaths of latex (rubber), polyurethane (plastic), or animal tissue that are rolled onto an erect...called "safes" or "rubbers." Female condoms are made of polyurethane and are inserted into the vaginal canal before sexual relations...
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SIC 2515 Mattresses, Foundations, and Convertible Beds
Encyclopedia entry from: Encyclopedia of American Industries
...30 billion in 1999, and to $4.73 billion in 2000. Between 1997 and 2000, shipments of innerspring mattresses with polyurethane or rubber tops climbed from $2.13 billion to $2.72 billion, while shipments of foundations rose from $1.12 billion...
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Eye Glasses and Contact Lenses
Encyclopedia entry from: Gale Encyclopedia of Medicine, 3rd ed.
...wearers can also choose between polycarbonate, which is the most impact-resistant material available for eyewear, and polyurethane, which has exceptional optical qualities and higher refraction than the conventional plastics even glass. Patients with...
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