The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Aug. 26, 2014
Filed:
May. 22, 2012
Chun Hsu Lin, Taipei, TW;
Hung Cheng Yin, Keelung, TW;
Chien Yi Sun, Kaohsiung, TW;
Yung Yu Yin, Pingtung County, TW;
Chuan Yu Chou, Taoyuan County, TW;
Chun Hsu Lin, Taipei, TW;
Hung Cheng Yin, Keelung, TW;
Chien Yi Sun, Kaohsiung, TW;
Yung Yu Yin, Pingtung County, TW;
Chuan Yu Chou, Taoyuan County, TW;
Yuan-Shin Materials Technology Corp., Taipei, TW;
Chung-Shan Institute of Science and Technology, Armaments Bureau, M.N.D., Taoyuan County, TW;
Abstract
The present invention relates to a facile method of preparing 1,4-bis(chlorodifluoromethyl)benzene, comprising the steps of: (A) providing a reactant liquid of 1,4-bis(difluoromethyl)benzene; optionally (B) providing a light source for UV radiation; and (C) introducing chlorine gas into the reactant liquid at a temperature of 50-90° C. under a pressure above 1 atm to obtain 1,4-Bis(chlorodifluoromethyl)benzene. The invented facile method can be utilized in a batch process or a continuous process for effective production of 1,4-bis(chlorodifluoromethyl)benzene.