发明授权
- 专利标题: Preparation of epoxy resins
- 专利标题(中): 环氧树脂的制备
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申请号: US523910申请日: 1983-08-16
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公开(公告)号: US4499255A公开(公告)日: 1985-02-12
- 发明人: Chun S. Wang , Ha Q. Pham , James L. Bertram
- 申请人: Chun S. Wang , Ha Q. Pham , James L. Bertram
- 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: C08G59/06
- IPC分类号: C08G59/06 ; C08G59/10
摘要:
Epoxy resins are prepared by reacting an excess of an epihalohydrin with a phenolic hydroxyl-containing compound in the presence of the incremental addition of a basic catalyst while removing water by codistilling with a solvent and epihalohydrin.