Back to results
US 4,515,989 AGranted
Preparation decarboxylation and polymerization of novel acid flourides and resulting monomers
AssigneeThe Dow Chemical Company
InventorsBobby R. Ezzell, William P. Carl, William A. Mod
Life of this patent
Estimating the term…
Abstract
Compounds represented by the general formulas ##STR1## are prepared by reacting halofluoropropylene oxides with fluorinated acid fluorides and ketones.
Claims19
In a method of preparing a compound of the formula ##STR44## which comprises reacting a compound of the formula ##STR45## for a sufficient time and at a sufficient temperature to form said compound (I);
- where
- a=is 0 or an integer greater than 0;
- b=is 0 or an integer greater than 0;
- R.sub.f and R'.sub.f are independently selected from the group consisting of F, Cl, perfluoroalkyl radicals and fluorochloroalkyl radicals;
- X=F, Cl, Br, or mixtures thereof when n>1;
- X'=Cl or Br;
- n=0 or an integer greater than 0;
- Z=F, OH, NRR' or OA, Cl, Br;
- A=alkali metal, quaternary nitrogen, or R;
- R and R' are independently selected from the group consisting of hydrogen, an alkyl having more than one carbon atom and an aryl;
- Y=I, Br, Cl or F.
8 more elements
In a method of preparing a compound of the formula:
- ##STR46## which comprises reacting a compound of the formula ##STR47## for a sufficient time and at a sufficient temperature to form said compound (I);
- where
- a=is 0 or an integer greater than 0;
- b=is 0 or an integer greater than 0;
- n=0 or an integer greater than 0;
- m=0 or an integer greater than 0;
- R.sub.f and R'.sub.f are independently selected from the group consisting of F, Cl, perfluoroalkyl radicals and fluorochloroalkyl radicals;
- X=F, Cl, Br, or mixtures thereof when n>1;
- X' is independently Cl or Br;
- Z=F, Cl, Br, OH, NRR' or OA;
- R and R' are independently selected from the group consisting of hydrogen, an alkyl having one or more than one carbon atom and an aryl;
- A=alkali metal, quaternary nitrogen, or R;
- Y=I, Br, Cl, or F.
10 more elements
Dependencies are inferred from the claim text.