基本信息:
- 专利标题： フッ素樹脂およびその製造方法
- 专利标题（英）：FLUORORESIN AND METHOD FOR PRODUCING THE SAME
- 申请号：JP2021049845 申请日：2021-03-24
- 公开(公告)号：JP2021155736A 公开(公告)日：2021-10-07
- 发明人： 坂口 孝太 , 岩永 和也 , 下野 智弥 , 長井 智成 , 山川 浩
- 申请人： 東ソー株式会社
- 申请人地址： 山口県周南市開成町4560番地
- 专利权人： 東ソー株式会社
- 当前专利权人： 東ソー株式会社
- 当前专利权人地址： 山口県周南市開成町4560番地
- 优先权： JP2020055776 2020-03-26
- 主分类号： C08F4/34
- IPC分类号： C08F4/34 ; C08F2/04 ; C08F24/00
To provide: a fluororesin having an oxolane ring, which is suppressed in yellowing after heating and melting and which is reduced in coloring especially in molding of a thick wall product; and a method for producing the same.SOLUTION: Provided is a fluororesin which contains a residue unit represented by the following formula (1) and, when dissolved in perfluorohexane to make a 10 wt% perfluorohexane solution, has a transmittance of 50% or more as measured with an optical path length of 10 mm and a wave length of 275 nm. (In formula (1), Rf1, Rf2, Rf3, and Rf4 each independently represent one selected from the group consisting of a fluorine atom, C1-7 linear perfluoroalkyl groups, C3-7 branched perfluoroalkyl groups, or C3-7 cyclic perfluoroalkyl groups. The perfluoroalkyl group may have an ethereal oxygen. Further, Rf1, Rf2, Rf3, and Rf4 may be linked to each other to form a C4-8 ring and the ring may be one containing an ethereal oxygen.)SELECTED DRAWING: None