发明申请
US20080242873A1 METHODS FOR PRODUCING AND PURIFYING 2-HYDROCARBYL-3,3-BIS(4-HYDROXYARYL)PHTHALIMIDINE MONOMERS AND POLYCARBONATES DERIVED THEREFROM
有权
2-烃基-3,3-双（4-羟基）苯基咪唑单体和衍生自其的聚碳酸酯的生产和纯化方法
- 专利标题： METHODS FOR PRODUCING AND PURIFYING 2-HYDROCARBYL-3,3-BIS(4-HYDROXYARYL)PHTHALIMIDINE MONOMERS AND POLYCARBONATES DERIVED THEREFROM
- 专利标题（中）： 2-烃基-3,3-双（4-羟基）苯基咪唑单体和衍生自其的聚碳酸酯的生产和纯化方法
-
申请号： US11694466申请日： 2007-03-30
-
公开(公告)号： US20080242873A1公开(公告)日： 2008-10-02
- 发明人: Rajshekhar Basale , Hyacinth Mary Bastian , Balakrishnan Ganesan , Venkata Rama Narayana Ganapathy Bhotla , Gurram Kishan , Pushpa Narayanan , Swaminathan Shubashree , Ravindra Vikram Singh
- 申请人： Rajshekhar Basale , Hyacinth Mary Bastian , Balakrishnan Ganesan , Venkata Rama Narayana Ganapathy Bhotla , Gurram Kishan , Pushpa Narayanan , Swaminathan Shubashree , Ravindra Vikram Singh
- 申请人地址： US NY Schenectady
- 专利权人： GENERAL ELECTRIC COMPANY
- 当前专利权人： GENERAL ELECTRIC COMPANY
- 当前专利权人地址： US NY Schenectady
- 主分类号： C07D209/32
- IPC分类号： C07D209/32
摘要：
Disclosed herein is a method comprising reacting a phenolphthalein material and a primary hydrocarbyl amine in the presence of an acid catalyst to form a reaction mixture comprising 2-hydrocarbyl-3,3-bis(4-hydroxyaryl)phthalimidine, wherein the phenolphthalein material comprises greater than or equal to 99 weight percent phenolphthalein, based on the total weight of the phenolphthalein material; quenching the reaction mixture and treating the quenched reaction mixture to obtain a first solid. The first solid is purified by a combination of techniques to produce a solid comprising 2-hydrocarbyl-3,3-bis(4-hydroxyaryl)phthalimidine with sufficient purity to be used as a monomer in the synthesis of clear polymers.
公开/授权文献
信息查询
