发明名称 |
Anionic polymerization of cis- and trans-1,3-pentadiene from a mixture of saturated and unsaturated hydrocarbons |
摘要 |
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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申请公布号 |
US4482771(A) |
申请公布日期 |
1984.11.13 |
申请号 |
US19830559525 |
申请日期 |
1983.12.08 |
申请人 |
THE DOW CHEMICAL COMPANY |
发明人 |
BOZZELLI, JOHN W.;DENNIS, KENT S.;DONATE, FELIPE A. |
分类号 |
C08F4/46;C08F36/00;C08F36/04;C08F240/00;(IPC1-7):C07C1/16;C07C2/74;C07C2/02 |
主分类号 |
C08F4/46 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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