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::: 可授權專利

後部座席衝突防止エアバッグの吸?式空?充填器 (後座防撞空氣囊之吸氣式充氣器)

創作型式:
發明
專利證號:
JP4991232
發明人:
王金鵬、黃岡、袁良彥
國別:
日本
獲證日期:
2012/05/11
專利摘要:
A method for producing 1,4-bis(difluoromethyl)tetrafluorobenzene is disclosed, which has the following steps: (a) mixing 1,4-bis(dichloromethyl)tetrafluorobenzene, a catalyst, an aprotic polar solvent, and an alkali metal fluoride to form a reaction mixture; (b) heating the reaction mixture; and (c) purifying the resultant to obtain 1,4-bis(difluoromethyl)tetrafluorobenzene.
IPC國際分類號:
C07C0017093