发明名称 |
Vinylidene fluoride polymer and process for production thereof |
摘要 |
A vinylidene fluoride polymer having good high-temperature coloring resistance is produced through suspension polymerization at 10-100° C. in a mixture solvent of 100 wt. parts of an aqueous medium and 10-50 wt. parts of a halogenated hydrocarbon solvent showing a good dissolving power to both a vinylidene fluoride monomer and a polymerization initiator and represented by a formula of:<paragraph lvl="0"><in-line-formula>CX3CX2CHX2,</in-line-formula>wherein X is a fluorine or chlorine atom, and 7 X's include 4-6 fluorine atoms and 1-3 chlorine atoms. The vinylidene fluoride polymer is characterized by an elutable total organic carbon content in pure water at 95° C. of at most 1.1 mug/cm2.
|
申请公布号 |
US2002143103(A1) |
申请公布日期 |
2002.10.03 |
申请号 |
US20020054795 |
申请日期 |
2002.01.25 |
申请人 |
KATSURAO TAKUMI;HOSOKAWA TOSHIO;HORIE KATSUO;TERAMOTO YOSHIKICHI;NAGAI AISAKU |
发明人 |
KATSURAO TAKUMI;HOSOKAWA TOSHIO;HORIE KATSUO;TERAMOTO YOSHIKICHI;NAGAI AISAKU |
分类号 |
C08F2/18;C08F6/00;C08F14/22;(IPC1-7):C08F12/20;C08K3/00 |
主分类号 |
C08F2/18 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|