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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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Plastic
Brief