发明名称 |
Two-step process for brominating butadiene copolymers |
摘要 |
Butadiene copolymers are brominated using certain quaternary ammonium tribromides as the brominating agent in a first step, and then with elemental bromine in a second bromination step. The bromination process proceeds easily under mild conditions, and produces a brominated product that has excellent thermal stability. The bromination proceeds to high conversions in shorter reaction times, when the bromination is performed using only the first bromination step. |
申请公布号 |
US8410226(B2) |
申请公布日期 |
2013.04.02 |
申请号 |
US20090936843 |
申请日期 |
2009.04.17 |
申请人 |
HULL, JR. JOHN W.;GREMINGER DOUGLAS C.;ADAWAY TIMOTHY J.;DOW GLOBAL TECHNOLOGIES LLC |
发明人 |
HULL, JR. JOHN W.;GREMINGER DOUGLAS C.;ADAWAY TIMOTHY J. |
分类号 |
C08F8/20;C08F36/16;C08F236/16 |
主分类号 |
C08F8/20 |
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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