发明名称 |
Mid-range vinylidene content polyisobutylene polymer product and process for producing the same |
摘要 |
A relatively low molecular weight, mid-range vinylidene content PIB polymer product and a process for making the same. At least about 90% of the PIB molecules present in the product comprise alpha or beta position isomers. The vinylidene (alpha) isomer content of the product may range from 20% to 70% thereof and the content of tetra-substituted internal double bonds is very low, preferably less than about 5% and ideally less than about 1-2%. The midrange vinylidene content PIB polymer products are prepared by a liquid phase polymerization process conducted in a loop reactor at a temperature of at least 60° F. using a BF<SUB>3</SUB>/methanol catalyst complex and a contact time of no more than 4 minutes.
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申请公布号 |
US7037999(B2) |
申请公布日期 |
2006.05.02 |
申请号 |
US20020102279 |
申请日期 |
2002.03.19 |
申请人 |
TEXAS PETROCHEMICALS LP |
发明人 |
BAXTER, JR. C. EDWARD;LOBUE CHRISTOPHER;VALDEZ GILBERT;HERNDON DANIEL;LOWRY TIMOTHY |
分类号 |
C08F110/10;C08F2/00;C08F10/00;C08F10/10;C08F110/14;C08F210/10 |
主分类号 |
C08F110/10 |
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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