发明授权
US4123503A Catalysis of phosphazene cyclics to polymer, using Lewis acid compounds
失效
使用路易斯酸化合物将磷腈环化合物催化成聚合物
- 专利标题: Catalysis of phosphazene cyclics to polymer, using Lewis acid compounds
- 专利标题(中): 使用路易斯酸化合物将磷腈环化合物催化成聚合物
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申请号: US771221申请日: 1977-03-23
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公开(公告)号: US4123503A公开(公告)日: 1978-10-31
- 发明人: Dennis L. Snyder , Mark L. Stayer, Jr. , Jung W. Kang
- 申请人: Dennis L. Snyder , Mark L. Stayer, Jr. , Jung W. Kang
- 申请人地址: OH Akron
- 专利权人: The Firestone Tire & Rubber Company
- 当前专利权人: The Firestone Tire & Rubber Company
- 当前专利权人地址: OH Akron
- 主分类号: C01B21/097
- IPC分类号: C01B21/097 ; C01B21/098 ; C01B25/10
摘要:
Thermal polymerization of (NPCl.sub.2).sub.3,4 is improved by conducting the polymerization in the presence of Lewis Acid type compounds of Al or B.
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