申请人:ASAHI GLASS COMPANY LTD.
公开号:EP1679311A1
公开(公告)日:2006-07-12
The present invention provides a fluoropolymer having excellent mechanical strength and transparency, having a high glass transition point suitable for high-temperature use, and having a high refractive index.
The present invention provides a novel compound represented by the following formula (1) and a fluoropolymer comprising monomer unit (2) formed by the polymerization of such a compound. RAF, RBF, RCF, RDF: each independently is a fluorine atom, a chlorine atom, a perfluoro monovalent saturated hydrocarbon group or a perfluoro(partially chlorinated monovalent saturated hydrocarbon) group, provided that at least one of RAF, RBF, RCF and RDF is a perfluoro(partially chlorinated monovalent saturated hydrocarbon) group.
本发明提供一种具有优异机械强度和透明度的氟聚合物,具有适用于高温使用的高玻璃转变点,并具有高折射率。本发明提供一种由以下式(1)表示的新型化合物以及由此类化合物聚合形成的单体单元(2)构成的氟聚合物。RAF、RBF、RCF、RDF:每个独立地是氟原子、氯原子、全氟单价饱和碳氢基团或全氟(部分氯化的单价饱和碳氢基团),前提是RAF、RBF、RCF和RDF中至少有一个是全氟(部分氯化的单价饱和碳氢基团)。