US4429143A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Cyclic monomers derived from trifluoropyruvate esters
Assignee: EIDP Inc
•
Filing: 1981-09-28
•
Granted: 1984-01-31
•
Expires: 2001-09-28
Abstract
Abstract Perhalogenated dioxoles, halogenated dioxolanes, a process for making the dioxoles and dioxolanes, and polymers of dioxole and dioxolane monomers.
Inventors
- 👤 Burton C. Anderson
- 👤 David C. England
- 👤 Paul R. Resnick
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 21:01
CPC Classifications
C; C07; C07D; C07D317/00; C07D317/08; C07D317/10; C07D317/32; C07D317/42; C08; C08F; C08F24/00; C08F34/00; C08F34/02
Claims Analysis
Total Claims: 30
Claim 1
Independent Claim
125 words
A dioxolane of the formula: ##STR26## wherein: X 1 is selected from the group consisting of Cl, F, COF, COCl, CO 2 CCl 3 , CO 2 R and CO 2 M; R is selected from the group consisting of H and alkyl of 1 to 4 carbon atoms; R F is perfluoroalkyl of 1 to 4 carbon atoms; M is selected from the group consisting of alkali metal ion and ammonium; X 2 , X 3 , X 4 and X 5 , independently, are selected from the group consisting of H, Cl and F; with the proviso that when X 2 , X 3 , X 4 and X 5 are each H, X 1 is CO 2 R or CO 2 M.
Claim 2
Dependent Claim
125 words
A dioxolane of the formula: ##STR26## wherein: X 1 is selected from the group consisting of Cl, F, COF, COCl, CO 2 CCl 3 , CO 2 R and CO 2 M; R is selected from the group consisting of H and alkyl of 1 to 4 carbon atoms; R F is perfluoroalkyl of 1 to 4 carbon atoms; M is selected from the group consisting of alkali metal ion and ammonium; X 2 , X 3 , X 4 and X 5 , independently, are selected from the group consisting of H, Cl and F; with the proviso that when X 2 , X 3 , X 4 and X 5 are each H, X 1 is CO 2 R or CO 2 M.
Claim 3
Dependent Claim
7 words
A dioxolane according to claim 1: ##STR27##
Claim 4
Dependent Claim
7 words
A dioxolane according to claim 1: ##STR28##
Claim 5
Dependent Claim
23 words
A dioxolane according to claim 1 wherein each of X 1 to X 5 is Cl and R F is CF 3 .
Claim 6
Dependent Claim
23 words
A dioxolane according to claim 1 wherein each of X 1 to X 5 is F and R F is CF 3 .
Claim 7
Dependent Claim
37 words
A dioxolane according to claim 1 wherein X 1 is selected from the group consisting of COF, COCl, CO 2 CCl 3 , CO 2 R and CO 2 M, and R F is CF 3 .
Claim 8
Dependent Claim
11 words
A dioxolane according to claim 6 wherein X 1 is COCl.
Claim 9
Dependent Claim
15 words
A dioxolane according to claim 7 wherein X 2 to X 5 are each Cl.
Claim 10
Dependent Claim
23 words
A dioxolane according to claim 6 wherein X 1 is CO 2 CCl 3 and X 2 to X 5 are each Cl.
Claim 11
Dependent Claim
13 words
A dioxolane according to claim 6 wherein X 1 is CO 2 M.
Claim 12
Dependent Claim
11 words
A dioxolane according to claim 6 wherein X 1 is COF.
Claim 13
Dependent Claim
19 words
A dioxolane according to claim 10 wherein not more than one of X 2 to X 5 is F.
Claim 14
Dependent Claim
18 words
A dioxolane according to claim 10 wherein at least two of X 2 to X 5 are F.
Claim 15
Dependent Claim
13 words
A dioxolane according to claim 1 wherein X 1 is Cl or F.
Claim 16
Dependent Claim
18 words
A dioxolane according to claim 14 wherein at least one of X 2 to X 5 is Cl.
Claim 17
Dependent Claim
13 words
A dioxolane according to claim 15 wherein R F is CF 3 .
Claim 18
Dependent Claim
15 words
A dioxolane according to claim 2 or 3 wherein R F is CF 3 .
Claim 19
Dependent Claim
27 words
A dioxolane according to claim 2 wherein R F is CF 3 and R is selected from the group CH 3 and C 2 H 5 .
Claim 20
Dependent Claim
31 words
A dioxolane of the formula: ##STR29## wherein X 2 , X 3 , X 4 and X 5 , independently, are Cl or F, provided that at least two are F.
Claim 21
Dependent Claim
31 words
A dioxolane of the formula: ##STR29## wherein X 2 , X 3 , X 4 and X 5 , independently, are Cl or F, provided that at least two are F.
Claim 22
Dependent Claim
22 words
A dioxolane according to claim 19 wherein X 2 and X 4 are F and X 3 and X 5 are Cl.
Claim 23
Dependent Claim
16 words
A dioxolane according to claim 19 wherein each of X 2 to X 5 is F.
Claim 24
Dependent Claim
32 words
A dioxole of the formula: ##STR30## wherein Y 1 , Y 2 and Y 3 , independently, are F or Cl, and R F is perfluoroalkyl of 1 to 4 carbon atoms.
Claim 25
Dependent Claim
32 words
A dioxole of the formula: ##STR30## wherein Y 1 , Y 2 and Y 3 , independently, are F or Cl, and R F is perfluoroalkyl of 1 to 4 carbon atoms.
Claim 26
Dependent Claim
13 words
A dioxole according to claim 22 wherein R F is CF 3 .
Claim 27
Dependent Claim
16 words
A dioxole according to claim 23 wherein each of Y 1 to Y 3 is F.
Claim 28
Dependent Claim
36 words
A process for preparing a dioxolane of claim 2 comprising reacting a fluorinated keto ester of the formula R.sub.F COCO.sub.2 R with at least one member of the group consisting of 2-chloroethanol, 2-bromoethanol, and ethylene oxide.
Claim 29
Dependent Claim
36 words
A process for preparing a dioxolane of the formula ##STR31## wherein X 1 is selected from the group consisting of Cl, COCl and CO 2 CCl 3 , comprising chlorinating a dioxolane according to claim 2.
Claim 30
Dependent Claim
78 words
A process for preparing a dioxolane according to claim 1 wherein X 1 is selected from the group consisting of F, Cl, COF and COCl; and X 2 , X 3 , X 4 and X 5 are F or Cl; at least one of X 1 to X 5 containing F; comprising fluorinating a dioxolane of the formula ##STR32## wherein X 1 is selected from the group consisting of Cl, COCl and CO 2 CCl 3 .
References Cited (Backward Citations)
US2925424A
Cited
US3316216A
Cited
US3324144A
Cited
US3308107A
Cited
US3532725A
Cited
US3557165A
Cited
US3555100A
Cited
US3865845A
Cited
US3749791A
Cited
SU503872A1
Cited
US3978030A
Cited
US4287124A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1987-01-30 | 1987-08-01 | 1988-01-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1991-01-30 | 1991-08-01 | 1992-01-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1995-01-30 | 1995-08-01 | 1996-01-31 | $7700.00 | Window Closed / Lapsed |