发明名称 |
Method for making a polyether monomer |
摘要 |
A method for making a polyether monomer having at least one unsaturated site per molecule and having a desired number of alkoxyl repeating units includes the steps of reacting an active hydrogen-containing monomer having at least one unsaturated site per molecule with an alkyl oxide in the presence of an alkoxylation catalyst and a polymerization inhibitor at a temperature from about 30° C. to less than 45° C. to produce a polyether monomer. In one embodiment, from about 5 to about 1000 parts by weight of a phenothiazine polymerization inhibitor per one million parts by weight of the active hydrogen-containing monomer phenothiazine compound is used as the polymerization inhibitor.
|
申请公布号 |
US7884229(B2) |
申请公布日期 |
2011.02.08 |
申请号 |
US20040838714 |
申请日期 |
2004.05.04 |
申请人 |
RHODIA INC. |
发明人 |
SHARMA AMIT K.;MARTIN CLAUDE K.;BOUKHELIFA AZIZ;CHEN NING |
分类号 |
C07C67/26;C07C67/28;C07C69/52;C08G65/26 |
主分类号 |
C07C67/26 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|