发明授权
US4058578A Process for the manufacture of paste-extrudable polymers of
tetrafluoroethylene
失效
用于制造四氟乙烯的糊状可挤出聚合物的方法
- 专利标题: Process for the manufacture of paste-extrudable polymers of tetrafluoroethylene
- 专利标题(中): 用于制造四氟乙烯的糊状可挤出聚合物的方法
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申请号: US727643申请日: 1976-09-29
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公开(公告)号: US4058578A公开(公告)日: 1977-11-15
- 发明人: Jurgen Kuhls , Thomas Martini , Alfred Steininger
- 申请人: Jurgen Kuhls , Thomas Martini , Alfred Steininger
- 申请人地址: DT
- 专利权人: Hoechst Aktiengesellschaft
- 当前专利权人: Hoechst Aktiengesellschaft
- 当前专利权人地址: DT
- 优先权: DT2544040 19751002
- 主分类号: B21B13/14
- IPC分类号: B21B13/14 ; C08F214/26 ; C08F259/08 ; F16C29/02 ; H01B3/44 ; C08L27/18
摘要:
Modified tetrafluoroethylene dispersion polymers are prepared by polymerizing tetrafluoroethylene in the presence of perfluorinated vinyl ethers of the formula I ##STR1## as modification agent. The articles made from the polymers by paste-extrusion have improved mechanical and electrical properties even if the extrusion is carried out at a high reduction ratio and draw-off rate.
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