Fluorocarbons


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Fluorocarbons

Carbon-fluorine compounds that often contain other elements such as hydrogen, chlorine, or bromine. Fluorocarbons are used as refrigerants and propellants in aerosol products, among other uses. Common fluorocarbons include chlorofluorocarbons (CFCs), hydrochlorofluorocarbons (HCFCs), hydrofluorocarbons (HFCs), and perfluorocarbons (PFCs). In 1978 the United States began phasing out the use of CFCs because of their ozone-depleting effect.
References in periodicals archive ?
Businesses are working to make transitions to compounds with more environmental protection while continuing the important attributes contained in fluorocarbons such as energy efficiency, low toxicity, and non-flammability," Stirpe said.
In addition, fluorocarbons are mostly nonflammable and have a low order of toxicity, which makes them significantly safer in use than alternatives such as hydrocarbons and ammonia that are either extremely flammable or highly toxic.
Made of a lipid or albumin shell, the bubbles are filled with fluorocarbons that the body naturally expels through the lungs.
Research into the use of fluorocarbon gases in ultrasound contrast agents is increasing and it is gratifying that the United States Patent Office continues to recognize SONUS' pioneering work efforts in this area," added Dr.
Specialty Materials, headquartered in Morristown, New Jersey, is a US $4 billion strategic business group of Honeywell that serves as a world leader in the production of nylon, polyester, polyethylene, fluorocarbons, caprolactam, electronic materials and specialty chemicals.
In reaction to the world-recognized detriments of CFC's, or freons, Saab will soon be phasing out its use of freons (R-12) and changing over to a refrigerant void of chlorinated fluorocarbons, well ahead of legislation which will require phase-out.
has announced the promotion of Jeff Lewis to business manager of the company's Fluorocarbon business line.
The company's fluorocarbon products consist primarily of HCFC-141b and the newly developed HFC-245fa.
While regulations and consumer concerns have reduced demand for some fluorine-based products, particularly fluorocarbons, they have also opened up opportunities for products such as newer fluorocarbons with low global warming potential.
developed moisturecurable silicone fluorocarbons by reacting oxamido ester-terminated silicones and fluorocarbon amines with moisture-curable groups.
Until now, says fluoride consultant Ebnesajjad, the only sources of information about fluoropolymers and fluorocarbons have been snippets here and there in studies of other matters, and brochures from commercial manufacturers.
Ziaie has tested prototypes with liquids called fluorocarbons, which are used as refrigerants and also in semiconductor manufacturing.