发明授权
US4210731A Aromatic polyformal-polycarbonate block polymers and method for making
same
失效
芳香族聚甲醛 - 聚碳酸酯嵌段聚合物及其制备方法
- 专利标题： Aromatic polyformal-polycarbonate block polymers and method for making same
- 专利标题（中）： 芳香族聚甲醛 - 聚碳酸酯嵌段聚合物及其制备方法
-
申请号： US942950申请日： 1978-09-18
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公开(公告)号： US4210731A公开(公告)日： 1980-07-01
- 发明人: Howard M. Relles , Donald S. Johnson
- 申请人： Howard M. Relles , Donald S. Johnson
- 申请人地址： 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： NY Schenectady
- 主分类号： C08G64/18
- IPC分类号： C08G64/18 ; C08L69/00
摘要：
There are provided aromatic polyformal-polycarbonate block polymers and method for making such materials. The polyformal-polycarbonate block polymers can be made by phosgenating a mixture of a bisphenol and oligomeric aromatic polyformal having terminal phenolic groups. The aromatic block polymers are high performance thermoplastics having improved hydrolytic stability compared to aromatic polycarbonates and improved heat distortion temperature compared to conventional aromatic polyformal.
公开/授权文献
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