发明名称 |
Aromatic polysulfone compounds and their manufacture |
摘要 |
This invention relates to aromatic polysulfone compounds and their manufacture. More particularly, this invention relates to functional group containing aromatic polysulfones, and their manufacture by metalation with organo-lithium compounds, of halogenated (e.g. brominated or chloromethylated) aromatic polysulfone compounds. The degree of halogenation of the starting material determines the sites that may be metalated, and the degree of metalation determines how many of these sites will be metalated. At least one of the metalated sites may be treated with an electrophile so that the lithium at that site is replaced by a residuum of the electrophile.
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申请公布号 |
US4999415(A) |
申请公布日期 |
1991.03.12 |
申请号 |
US19880281042 |
申请日期 |
1988.12.07 |
申请人 |
NATIONAL RESEARCH COUNCIL OF CANADA/CONSEIL DE RECHERCHES CANADA |
发明人 |
GUIVER, MICHAEL D.;KUTOWY, OLEH |
分类号 |
C08G75/20 |
主分类号 |
C08G75/20 |
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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