Polymerization of hexafluoropropene oxide

Details Polymerization of hexafluoropropene oxide Polymerization of hexafluoropropene oxide

1997-09-30

1998-10-06

Gulakowski, Randy

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

From fluorine-containing reactant

528408, 528421, C08G 6522, C08G 5968

Patent

active

058177469

ABSTRACT:
In polymerizing hexafluoropropene oxide (HFPO) into a fluorinated polyether, a liquefied gas of fluorocarbon having 1 to 4 carbon atoms is added to a reactor. HFPO is polymerized in the reactor while maintaining a gas phase in the reactor under a pressure lower than the vapor pressure of the liquefied gas and allowing the liquefied gas to evaporate from the polymerization system. Heat of polymerization can be efficiently removed from the HFPO polymerization system of high viscosity, and the polymerization temperature is kept low.

REFERENCES:
patent: 3322826 (1967-05-01), Moore
patent: 3660315 (1972-05-01), Hill et al.
patent: 4303593 (1981-12-01), Kuhne
Chemical Abstracts, vol. 81, No. 6, 12 Aug. 1974, 26333.
Hill, J. T., "Polymers from Hexafluoropropylene", J. Marcromol. Sci. Chem., vol. 8, No. 3 (1974) pp. 499-520.
European Search Report.
CA AN:117:251917, Feng et al., Controlled synthesis of . . . poly(hexafluoropropylene oxide), Sep. 1992.
CA, AN:95:204487, Duan et al., "Anionic polymerization of hexafluoropropylene oxide", Feb. 1981.

Affiliated with

Also associated with

Rating

Polymerization of hexafluoropropene oxide does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Polymerization of hexafluoropropene oxide, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Polymerization of hexafluoropropene oxide will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-78176