发明授权
US4064112A Process for the continuous production of high molecular weight
polyethylene terephthalate
失效
连续生产高分子量聚对苯二甲酸乙二醇酯的方法
- 专利标题: Process for the continuous production of high molecular weight polyethylene terephthalate
- 专利标题(中): 连续生产高分子量聚对苯二甲酸乙二醇酯的方法
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申请号: US677503申请日: 1976-04-15
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公开(公告)号: US4064112A公开(公告)日: 1977-12-20
- 发明人: Hans Joachim Rothe , Helmut Heinze , Brian D. Whitehead , Gunther Priepke
- 申请人: Hans Joachim Rothe , Helmut Heinze , Brian D. Whitehead , Gunther Priepke
- 申请人地址: DT Frankfurt
- 专利权人: Zimmer Aktiengesellschaft
- 当前专利权人: Zimmer Aktiengesellschaft
- 当前专利权人地址: DT Frankfurt
- 优先权: DT2559290 19751231
- 主分类号: C08G63/80
- IPC分类号: C08G63/80 ; C08G63/26
摘要:
This invention relates to a process for the continuous production of high molecular weight polyethylene terephthalate by polycondensation in the solid phase wherein granulated, dried polyethylene terephthalate, having an intrinsic viscosity of at least 0.15, is first crystallized and is thereafter subjected to solid state polycondensation.
公开/授权文献
- US5160228A Cutting tool with clamped-on inserts 公开/授权日:1992-11-03
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