Title:
【発明の名称】テロマー混合物を精製する方法
Document Type and Number:
Japanese Patent JP2634913
Kind Code:
B2
Abstract:
A mixture of telomers prepared by reacting chlorotrifluoroethylene with 1,1,2-trichlorotrifluoroethane (CCl2FCF2Cl) is purified by reacting the telomer mixture with potassium hydroxide in the presence of a quarternery ammonium compound and, optionally, a glycol, separating and removing impurities from the telomer mixture, subsequently reacting the telomer with potassium permanganate in the presence of the quarternery ammonium compound in a solvent, and recovering a purified telomer mixture. If additional purity is required, the purified telomer mixture can be heated to a temperature of from about 150 DEG C to about 250 DEG C for at least 12 hours, and impurities formed during the thermal treatment are removed. The purified telomers of this invention find uses in applications requiring the use of non-flammable hydraulic fluids.
Inventors:
BOBII EFU DANERUSU
DEBORA JEI ORUSEN
JON FUOOKUTSUKII
DEBORA JEI ORUSEN
JON FUOOKUTSUKII
Application Number:
JP21475289A
Publication Date:
July 30, 1997
Filing Date:
August 21, 1989
Export Citation:
Assignee:
OKUSHIDENTARU CHEM CORP
International Classes:
C07C17/38; C07C17/00; C07C17/278; C07C17/395; C07C19/10; C07C67/00; C08F6/00; C08F6/06; (IPC1-7): C07C19/08; C07C17/38; C08F6/00
Attorney, Agent or Firm:
Minoru Nakamura (8 outside)