Patent US4337211A successfully refreshed from Google Patents.
US4337211A
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US
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Fluorocarbon ethers having substituted halogen site(s) and process to prepare
Assignee: Dow Chemical Co
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Filing: 1980-06-11
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Granted: 1982-06-29
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Expires: 2000-06-11
Abstract
Abstract Novel perhalofluoro ethers and methods for preparing the same having generic formula, ##STR1## wherein a=0 or an integer greater than O; b=0 or an integer greater than O; n=zero or an integer greater than zero; R f and R' f are each independently selected from the group consisting of F, perfluoroalkyl and fluorochloroalkyl; X=F, Cl or Br; X'=Cl or Br; Y is an acid group or a group easily convertible to an acid group; 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 aryl; A=alkali metal, quaternary nitrogen, or R.
Inventors
- 👤 Bobby R. Ezzell
- 👤 William P. Carl
- 👤 William A. Mod
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 08:45
CPC Classifications
C; C07; C07C; C07C41/00; C07F; C07F9/00; C07F9/02; C07F9/28; C07F9/38; C07F9/40; C07F9/4003; C07F9/4006; C07C309/00; C07C51/00; C07C51/58; C07C69/00; C07C69/66; C07C69/67
Claims Analysis
Total Claims: 18
Claim 1
Independent Claim
157 words
As a composition of matter the compounds represented by the general formula: ##STR43## where a=an integer from, and including, 0 to 3; b=an integer from, and including, 0 to 3; m=an integer from, and including 0 to 6; n=an integer from and including 0 to 6; R f and R f ' are each independently selected from the group consisting of F, Cl, perfluoroalkyl and fluorochloroalkyl; X=F, Cl, Br, or mixtures thereof when n>1; X'=Cl, Br, or mixtures thereof; Y is selected from the group consisting of ##STR44## Z' is 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; 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 carbon atom and aryl; A=alkali metal, quaterary ammonium or R.
Claim 2
Dependent Claim
157 words
As a composition of matter the compounds represented by the general formula: ##STR43## where a=an integer from, and including, 0 to 3; b=an integer from, and including, 0 to 3; m=an integer from, and including 0 to 6; n=an integer from and including 0 to 6; R f and R f ' are each independently selected from the group consisting of F, Cl, perfluoroalkyl and fluorochloroalkyl; X=F, Cl, Br, or mixtures thereof when n>1; X'=Cl, Br, or mixtures thereof; Y is selected from the group consisting of ##STR44## Z' is 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; 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 carbon atom and aryl; A=alkali metal, quaterary ammonium or R.
Claim 3
Dependent Claim
7 words
The compounds of claim 1 where X=Cl.
Claim 4
Dependent Claim
7 words
The compounds of claim 1 where X'=Cl.
Claim 5
Dependent Claim
11 words
The compounds of claim 1 where X=F and n is 1-6.
Claim 6
Dependent Claim
9 words
The compounds of claim 1 where X=F and X'=Cl.
Claim 7
Dependent Claim
9 words
The compounds of claim 1 where Y=Z'SO 2 .
Claim 8
Dependent Claim
7 words
The compounds of claim 1 where Y=COZ'.
Claim 9
Dependent Claim
9 words
The compounds of claims 6 or 7 where X=Cl.
Claim 10
Dependent Claim
9 words
The compounds of claims 6 or 7 where X'=Cl.
Claim 11
Dependent Claim
11 words
The compounds of claims 6 or 7 where X=Cl and X'=Cl.
Claim 12
Dependent Claim
11 words
The compounds of claims 1, 3, 6 and 7 where n=0.
Claim 13
Dependent Claim
14 words
The compounds of claims 1, 2, 3, 4, 5, 6 and 7 where m=0.
Claim 14
Dependent Claim
9 words
The compounds of claim 1 where n=0 and m=0.
Claim 15
Dependent Claim
7 words
The compounds of claim 13 where X'=Cl.
Claim 16
Dependent Claim
9 words
The compounds of claim 1 where n=1 and m=0.
Claim 17
Dependent Claim
7 words
The compounds of claim 15 where X=Cl.
Claim 18
Dependent Claim
7 words
The compounds of claim 16 where X'=Cl.
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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) | 1985-06-28 | 1985-12-28 | 1986-06-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1989-06-28 | 1989-12-28 | 1990-06-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1993-06-28 | 1993-12-28 | 1994-06-29 | $7700.00 | Window Closed / Lapsed |