发明名称 |
Process for preparing halogenated aromatic hydroxy ethers |
摘要 |
An oxyalkylated, halogenated product useful in making polyurethane foams is prepared by reacting an epoxide compound with a halogenated aromatic hydroxyl-containing compound (phenol) which is either a monohydroxy or polyhydroxy compound. Said aromatic hydroxyl compound has a hydroxy group attached directly to the aromatic nucleus. By the process of the invention, hydroxyalkylation occurs in the presence of a catalyst selectively active in the predominant oxyalkylation of aromatic hydroxyl groups, said catalyst selected from the group consisting of zinc, magnesium and a zinc or magnesium salt as defined. The reaction mixture can include an aliphatic hydroxyl-containing compound, a neutral phosphorus compound, and aliphatic or aromatic anhydrides or mixtures thereof to enhance the flame-retardant properties of the oxyalkylated product.
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申请公布号 |
US4149987(A) |
申请公布日期 |
1979.04.17 |
申请号 |
US19780882078 |
申请日期 |
1978.03.01 |
申请人 |
BASF WYANDOTTE CORPORATION |
发明人 |
AUSTIN, ARTHUR L.;LEVIS, JR., WILLIAM W. |
分类号 |
C08G65/26;(IPC1-7):C08K5/06;C08K5/50;C07C41/02 |
主分类号 |
C08G65/26 |
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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