发明授权
- 专利标题: Preparation of highly pure alpha-methylstyrene polymer
- 专利标题(中): 高纯度α-甲基苯乙烯聚合物的制备
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申请号: US846539申请日: 1986-03-31
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公开(公告)号: US4748222A公开(公告)日: 1988-05-31
- 发明人: Michael T. Malanga
- 申请人: Michael T. Malanga
- 申请人地址: MI Midland
- 专利权人: The Dow Chemical Company
- 当前专利权人: The Dow Chemical Company
- 当前专利权人地址: MI Midland
- 主分类号: C08F2/00
- IPC分类号: C08F2/00 ; C08F2/06 ; C08F4/42 ; C08F4/48 ; C08F12/12 ; C08F212/12
摘要:
An improved process for the anionic polymerization of alpha-methylstyrene polymers employs an organolithium initiator and a sodium-, potassium-, rubidium- or cesium initiator activator compound.
公开/授权文献
- US5777460A Voltage step-up circuit with output voltage regulation 公开/授权日:1998-07-07
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