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Title:
ANIONIC POLYMERIZATION OF CIS- AND TRANS-1,3-PENTADIENE FROM A MIXTURE OF SATURATED AND UNSATURATED HYDROCARBONS
Document Type and Number:
WIPO Patent Application WO/1986/002931
Kind Code:
A1
Abstract:
1,3-pentadiene is polymerized from a mixture of saturated and unsaturated hydrocarbon compounds, the compounds having primarily 5 carbon atoms per molecule, with an anionic polymerization initiator. The mixture of saturated and unsaturated hydrocarbon compounds is contacted, in an inert atmosphere, with an anionic polymerization initator to form a reaction mixture. The anionic polymerization initiator is present in an amount sufficient to inactivate polymerization-terminating compounds present in the mixture and to initiate polymerization of 1,3-pentadiene from the mixture. The reaction mixture is heated with stirring to a temperature sufficient to inactivate the polymerization terminating compounds. After inactivation of the polymerization terminating compounds, the reaction mixture is then heated with stirring to a temperature sufficient to initiate polymerization of 1,3-pentadiene from the reaction mixture. Polymer recovery and subsequent functionalization, if any, follow thereafter.

Inventors:
DONATE FELIPE A (US)
BOZZELLI JOHN W (US)
DENNIS KENT S (US)
Application Number:
PCT/US1984/001874
Publication Date:
May 22, 1986
Filing Date:
November 16, 1984
Export Citation:
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Assignee:
DOW CHEMICAL CO (US)
International Classes:
C08F4/44; C07C2/40; C07C9/22; C07C11/21; C08C19/00; C08C19/02; C08C19/06; C08C19/14; C08C19/20; C08F4/42; C08F8/04; C08F36/04; C08F136/04; (IPC1-7): C08F136/04; C07C7/148; C07C11/20; C08C19/02; C08F4/46
Foreign References:
US4482771A1984-11-13
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