US4594399A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Cyclic monomers derived from trifluoropyruvate esters, amended to polymers and polymer films from dioxoles
Assignee: EIDP Inc
•
Filing: 1985-03-12
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Granted: 1986-06-10
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Expires: 2005-03-12
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
2026-10-26 21:17
CPC Classifications
C; C07; C07D; C07D317/00; C07D317/08; C07D317/10; C07D317/32; C07D317/42; C08; C08F; C08F24/00
Claims Analysis
Total Claims: 14
Claim 1
Independent Claim
34 words
A polymer of a dioxole of the formula: ##STR26## wherein Y 1 , Y 2 and Y 3 , independently, are F or Cl, and R F is perfluoroalkyl of 1 to 4 carbons.
Claim 2
Dependent Claim
34 words
A polymer of a dioxole of the formula: ##STR26## wherein Y 1 , Y 2 and Y 3 , independently, are F or Cl, and R F is perfluoroalkyl of 1 to 4 carbons.
Claim 3
Dependent Claim
36 words
A copolymer of a dioxole of the formula: ##STR27## wherein Y 1 , Y 2 and Y 3 , independently, are F or Cl, and R F is perfluoroalkyl of 1 to 4 carbons; and tetrafluoroethylene.
Claim 4
Dependent Claim
36 words
A copolymer of a dioxole of the formula: ##STR27## wherein Y 1 , Y 2 and Y 3 , independently, are F or Cl, and R F is perfluoroalkyl of 1 to 4 carbons; and tetrafluoroethylene.
Claim 5
Dependent Claim
13 words
A polymer according to claim 1 wherein R F is CF 3 .
Claim 6
Dependent Claim
26 words
A copolymer of a dioxole of the formula: ##STR28## wherein Y 1 , Y 2 and Y 3 , independently, are F or Cl; and tetrafluoroethylene.
Claim 7
Dependent Claim
26 words
A copolymer of a dioxole of the formula: ##STR28## wherein Y 1 , Y 2 and Y 3 , independently, are F or Cl; and tetrafluoroethylene.
Claim 8
Dependent Claim
17 words
A copolymer according to claim 4 wherein Y 1 , Y 2 and Y 3 are F.
Claim 9
Dependent Claim
19 words
A copolymer according to claim 4 wherein Y 1 is Cl and Y 2 and Y 3 are F.
Claim 10
Dependent Claim
13 words
A film of the polymer according to one of claims 1 or 3.
Claim 11
Dependent Claim
9 words
A coating solution comprising a polymer of claim 1.
Claim 12
Dependent Claim
13 words
A coating solution of claim 8 wherein R F is CF 3 .
Claim 13
Dependent Claim
41 words
A coating solution comprising a copolymer of a dioxole of the formula: ##STR29## wherein Y 1 , Y 2 , and Y 3 are, independently, F or Cl, and R F is perfluoroalkyl of 1 to 4 carbon atoms; and tetrafluoroethylene.
Claim 14
Dependent Claim
41 words
A coating solution comprising a copolymer of a dioxole of the formula: ##STR29## wherein Y 1 , Y 2 , and Y 3 are, independently, F or Cl, and R F is perfluoroalkyl of 1 to 4 carbon atoms; and tetrafluoroethylene.
References Cited (Backward Citations)
US4393227A
Cited
US4431786A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1989-06-09 | 1989-12-09 | 1990-06-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1993-06-09 | 1993-12-09 | 1994-06-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1997-06-09 | 1997-12-09 | 1998-06-10 | $7700.00 | Window Closed / Lapsed |