polyurethanes


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Related to polyurethanes: polyurethane foam, polycarbonate

polyurethanes

(pŏl'ēyo͝or`əthānz), group of plasticsplastic,
any organic material with the ability to flow into a desired shape when heat and pressure are applied to it and to retain the shape when they are withdrawn. Composition and Types of Plastic
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 that may be either thermosetting or thermoplastic. Polyurethane can be made into both flexible and rigid foams. The flexible foam is often used in furniture and automobile cushions, in mattresses, and for carpet backings. The rigid foam is used for the thermal insulation of refrigerators, trucks, and buildings. In the furniture industry the rigid foam is molded into mirror frames, chair shells, and other parts that were formerly made from wood. Some polyurethanes are highly elastic materials that are resistant to chemical attack and to abrasion. They are used in such things as solid rubber tires and shoe heels. Lycra, a fiber used in stretch clothing, is a polyurethane. Polyurethanes are also used as decorative and protective coatings, exhibiting high gloss, hardness, and toughness.
References in periodicals archive ?
As the conference's approximately 70 technical papers demonstrated, the polyurethanes industry continues to be a hub of innovation.
The Virtual Expo includes such features as a polyurethanes message board, search capabilities, and an option enabling visitors to send polyurethanes-oriented postcards to their colleagues.
bought Upjohn's polyurethane business in 1985 and closed the North Haven lab in '89.
Rigid polyurethane foam is mainly applied fields such as refrigerator and freezer, automobile, water heater, and heat preservation of building.
The survey shows wood floor and hard surface coatings continue to be a major portion of the demand for polyurethane coatings.
Unlike a rigid steel edge, the polyurethane edge "squeegees:" the blades pick up more snow and slush, while getting water out of pockets or depressions in the road surface, leaving less behind to refreeze.
Miles will report on new technology for producing energy-absorbing polyurethanes for automotive components, vibration-damping elements, and shoe insoles.
Featuring more than 60 technical presentations, the conference will provide leaders and professionals with an opportunity to hear about the latest innovations, technical developments and issues affecting the global polyurethanes industry.
To achieve this goal, the group develops and distributes product stewardship tools to support environmental, health and safety programs affecting the polyurethanes industry.
This month's Polyurethanes World Congress in Nice, France, cosponsored by SPI's Polyurethanes Div.
MARKET FOR POLYURETHANE RESINS FOR PAINTWORK MATERIALS
Finalists will provide a three minute presentation of their entry for the Polyurethanes 2010 Technical Conference in partnership with Utech North America.