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Related to olefin: paraffin, Alpha olefin


1. Any of a class of unsaturated open-chain hydrocarbons having at least one double bond.
2. A fiber or fabric made of this material.

[French (gaz) oléfiant, oil-forming (gas), ethylene : Latin oleum, oil; see oil + French -fiant, present participle of -fier, -fy.]

o′le·fin′ic adj.


(ˈæl kin)

any member of the homologous series of unsaturated, aliphatic hydrocarbons having at least one double bond and the general formula CnH2n, as ethlyene. Also called olefin .


See alkene.
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.olefin - any unsaturated aliphatic hydrocarbon
aliphatic compound - organic compound that is an alkane or alkene or alkyne or their derivative
ethene, ethylene - a flammable colorless gaseous alkene; obtained from petroleum and natural gas and used in manufacturing many other chemicals; sometimes used as an anesthetic
References in periodicals archive ?
Olefins Conversion--The Superflex, Prodflex, Isomplus, isomerisation and hydration catalytic processes for the selective conversion of low-value, mixed-olefin streams from crackers to ethylene, propylene and butenes.
has introduced Apel cyclic olefin copolymer (COC) to North America.
Synergy could be created by revamping the olefin division of CAPC increasing its capacity to be able to supply PT PENI with the feedstock in needs.
based olefin production assets which could be placed in such a structure include Chevron Phillips Chemical Co.
The Dow Chemical Company has introduced Infuse Olefin Block Coploymers (OBCs), a breakthrough in olefin elastomers.
The client owns an existing commercial plant of coal-to-olefins which was put into production in 2011 and is the first and largest coal-to-olefin project in the world using coal as the feedstock to produce polyethylene and polypropylene by coal gasification to methanol, then methanol to olefin (MTO), and then olefin polymerization.
Key statement: A rubber material is described, modified with a barrier material in the form of a copolymer which can be produced via ring-opening metathesis polymerization of a) at least one olefin monomer selected from the group consisting of monocyclic olefin monomers having one or two endocyclic C--C double bonds and bicyclic olefin monomers having one endocyclic C--C double bond and b) at least one polycyclic olefin monomer having at least two C--C double bonds.
Patented is a multilayer polymer structure comprising a layer with at least one fluorohydrocarbon polymer linked to a layer comprising at least one olefin polymer via a layer comprising from 97% to 10% by weight of at least one grafted olefin polymer and from 3 to 90% by weight of at least one fluorohydrocarbon polymer.
Cyclic olefin homopolymers and copolymers are engineering thermoplastics derived from the ring-shaped norbornene molecule, which is made from dicyclopentadiene (DCPD) and ethylene.
Under the circumstances, the 7th International Olefin Annual conference, hosted by CBI China, will be held in Hong Kong on October 31st and November 1st.
According to the Fiber Economics Bureau (FEB), domestic shipments of olefin, polyester and rayon staple to nonwovens producers in the first quarter totaled only 184 million pounds, the lowest in three years.
Of the three major fiber types, only olefin recorded a slight decrease, down nearly 2% from 2001.