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olefin

   Also found in: Dictionary/thesaurus, Medical, Wikipedia, Hutchinson 0.06 sec.
olefin (ō`ləfĭn) or olefin series: see alkene alkene (ăl`kēn), any of a group of aliphatic hydrocarbons whose molecules contain one or more carbon-carbon double bonds (see
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olefin

 or alkene

Any unsaturated hydrocarbon containing one or more pairs of carbon atoms linked by a double bond (see covalent bond, saturation). Olefins may be classified by whether the double bond is in a ring (cyclic) or a chain (acyclic, or aliphatic) or by the number of double bonds (monoolefin, diolefin, etc.). Rare in nature, olefins are obtained by the cracking of petroleum fractions at high temperatures. The simplest ones (ethylene, propylene, butylene, butadiene, and isoprene) are the basis of the petrochemicals industry. They react by adding other chemical agents at the double bond to form derivatives or polymers.
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Developmental Infuse thermoplastic olefin block copolymers (OBCs) from Dow Chemical, Midland, Mich.
Olefin block copolymers aimed at auto interiors by Plastics Technology
com) is calling a new olefin elastomers it has developed a "breakthrough.
Dow claims olefin "breakthrough" by Automotive Design & Production
Infuse olefin block copolymers (OBCs) feature a block architecture that is said to deliver enhanced performance and processing properties beyond current olefin elastomers, including outstanding high temperature performance, faster set-up in processing (reduced cycle times), improved abrasion resistance and excellent elasticity and compression set properties, both at room and elevated temperatures.
Olefin block copolymers by Rubber World
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