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| Glossary |
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| A B C D E F G H I J K L M N O P Q R S T U V W X Y Z |
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Olefin
An unsaturated simple hydrocarbon with one double bond per molecule, such as ethylene or butylene. Olefins are chained into polymers such as polyethylene.
Olefin Fiber
Generic name for fiber composed of a polymer with at least 85 wt% of ethylene, propylene or other olefin units, excepting amorphous rubbery polymers. Examples are Courlene, Fibralon, Herculon and Vectra.
Oleoresin
The initial exudation from certain trees when the bark is wounded. An oleoresin consists of a resinous component together with an essential oil. The latter usually evaporates, leaving the hard resin. Best studied is pine oleoresin, from which the resin rosin and the essential oil turpentine are obtained.
Oligomer
A substance composed of oligomer molecules
Oxygen induction time (OIT)
A relative measure of a level or a degree of stabilisation (amount of remaining active antioxidant). |
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