Chemistry of hydrocarbon compounds – Product blend – e.g. – composition – etc. – or blending process... – Component of indefinite molecular weight greater than 150
Patent
1983-12-08
1984-11-13
Davis, Curtis R.
Chemistry of hydrocarbon compounds
Product blend, e.g., composition, etc., or blending process...
Component of indefinite molecular weight greater than 150
585 18, 585255, 585507, 585520, C07C 116, C07C 274, C07C 202
Patent
active
044827717
ABSTRACT:
1,3-Pentadiene is polymerized in an inert gaseous atmosphere from a mixture of saturated and unsaturated hydrocarbon molecules. At least 50 percent by weight of said molecules have 5 carbon atoms. An anionic polymerization initiator in conjunction with an organic polar solvent is used to effect polymerization. Cyclopentadiene, active hydrogen compounds and other polymerization-terminating compounds may be inactivated and separated from the mixture of hydrocarbon compounds before starting polymerization. As an alternative, inactivation and separation of cyclopentadiene, active hydrogen compounds and polymerization-terminating compounds may be omitted provided the anionic polymerization initiator is employed in an amount to (a) inactivate such compounds and (b) initiate polymerization of 1,3-pentadiene.
The polymer of 1,3-pentadiene so prepared is then hydrogenated or functionalized by further reaction.
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Bozzelli John W.
Dennis Kent S.
Donate Felipe A.
Davis Curtis R.
Howard Dan R.
The Dow Chemical Company
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