US4515989A
Expired / Lapsed
US
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Preparation decarboxylation and polymerization of novel acid flourides and resulting monomers
Assignee: Dow Chemical Co
•
Filing: 1980-06-11
•
Granted: 1985-05-07
•
Expires: 2000-06-11
Abstract
Abstract Compounds represented by the general formulas ##STR1## are prepared by reacting halofluoropropylene oxides with fluorinated acid fluorides and ketones.
Inventors
- 👤 Bobby R. Ezzell
- 👤 William P. Carl
- 👤 William A. Mod
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 20:17
CPC Classifications
C; C07; C07C; C07C41/00; C07C41/01; C07C41/18; C07C41/24; C07C49/00; C07C49/04; C07C49/175; C07C51/00; C07C51/04; C07C51/58; C07C59/00; C07C59/125; C07C59/135; C08; C08F; C08F216/00; C08F216/12; C08F216/14; C08F216/1408
Claims Analysis
Total Claims: 21
Claim 1
Independent Claim
130 words
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 f and R' 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.
Claim 2
Dependent Claim
130 words
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 f and R' 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.
Claim 3
Dependent Claim
10 words
The method of claim 1 where a=0-3; b=0-3 and n=0-6.
Claim 4
Dependent Claim
12 words
The method of claim 1 where R f and R' f =F.
Claim 5
Dependent Claim
13 words
The method of claim 1 where X=Cl or F and Y=Cl or F.
Claim 6
Dependent Claim
9 words
The method of claim 1 where n=0 or 1.
Claim 7
Dependent Claim
11 words
The method of claim 1 where n=0 and Y=Cl or F.
Claim 8
Dependent Claim
12 words
The method of claim 1 where n=1; X=Cl and Y=Cl or F.
Claim 9
Dependent Claim
142 words
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 f and R' 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.
Claim 10
Dependent Claim
142 words
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 f and R' 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.
Claim 11
Dependent Claim
11 words
The method of claim 8 where a=0-3; b=0-3; n=0-6 and m=0-6.
Claim 12
Dependent Claim
12 words
The method of claim 8 where R f and R' f =F.
Claim 13
Dependent Claim
9 words
The method of claim 8 where n=0 and m=0.
Claim 14
Dependent Claim
7 words
The method of claim 11 where X=F.
Claim 15
Dependent Claim
9 words
The method of claim 12 where Y=Cl or F.
Claim 16
Dependent Claim
7 words
The method of claim 8 where Z=F.
Claim 17
Dependent Claim
18 words
The method of claim 1 or 8 where the reaction is conducted in the presence of a base.
Claim 18
Dependent Claim
11 words
The method of claim 15 where the base is sodium carbonate.
Claim 19
Dependent Claim
15 words
The method of claim 15 where the reaction temperature is less than about 300° C.
Claim 20
Dependent Claim
15 words
The method of claim 15 where the reaction temperature is less than about 200° C.
Claim 21
Dependent Claim
15 words
The method of claim 15 where the reaction temperature is less than about 100° C.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1988-05-06 | 1988-11-05 | 1989-05-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1992-05-06 | 1992-11-05 | 1993-05-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1996-05-06 | 1996-11-05 | 1997-05-07 | $7700.00 | Window Closed / Lapsed |