US4831085A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fluorine containing polymers and compositions containing same
Assignee: Nippon Mektron KK
•
Filing: 1987-11-17
•
Granted: 1989-05-16
•
Expires: 2007-11-17
Abstract
Abstract This invention relates to a fluorine containing polymer as well as a curable composition containing the polymer and an organic peroxide. The fluorine containing polymer consists of a copolymer of (1) 3-bromoperfluoropropyl perfluorovinyl ether or 2-bromoperfluoropropyl perfluorovinyl ether, and (2) a fluorine containing monomer of 2 to 8 carbon atoms copolymerizable with said perfluoropropyl perfluorovinyl ether, the content of said perfluoropropyl perfluorovinyl ether in said copolymer being less than 5 mol %.
Inventors
- 👤 Jun Okabe
- 👤 Akihiro Naraki
- 👤 Masatoshi Abe
- 👤 Haruyoshi Tatsu
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 20:12
CPC Classifications
C; C08; C08F; C08F214/00; C08F214/18; C08F214/186; C08F214/188; C08K; C08K5/00; C08K5/04; C08K5/14
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
50 words
A fluorine containing polymer consisting of a copolymer of (1) 3-bromoperfluoropropyl perfluorovinyl ether or 2-bromoperfluoropropyl perfluorovinyl ether, and (2) a fluorine containing monomer of 2 to 8 carbon atoms copolymerizable with said perfluoropropyl perfluorovinyl ether, the content of said perfluoropropyl perfluorovinyl ether in said copolymer being less than 5 mol%.
Claim 2
Dependent Claim
50 words
A fluorine containing polymer consisting of a copolymer of (1) 3-bromoperfluoropropyl perfluorovinyl ether or 2-bromoperfluoropropyl perfluorovinyl ether, and (2) a fluorine containing monomer of 2 to 8 carbon atoms copolymerizable with said perfluoropropyl perfluorovinyl ether, the content of said perfluoropropyl perfluorovinyl ether in said copolymer being less than 5 mol%.
Claim 3
Dependent Claim
36 words
The fluorine containing polymer according to claim 1 wherein the fluorine containing monomer of 2 to 8 carbon atoms copolymerizable with the bromoperfluoropropyl perfluorovinyl ether is tetrafluoroethylene, chlorotrifluoroethylene, vinylidene fluoride, hexafluoropropene, pentafluoropropene or perfluoroalkyl perfluorovinyl ethers.
Claim 4
Dependent Claim
24 words
The fluorine containing polymer according to claim 1 wherein the content of said perfluoropropyl perfluorovinyl ether in said copolymer is 0.01 to 2.0 mol%.
Claim 5
Dependent Claim
67 words
A curable fluorine containing polymer composition comprising a copolymer [A] of (1) 3-bromoperfluoropropyl perfluorovinyl ether or 2-bromoperfluoropropyl perfluorovinyl ether, and (2) a fluorine containing monomer of 2 to 8 carbon atoms copolymerizable with said perfluoropropyl perfluorovinyl ether, the content of said perfluoropropylvinyl ether in said copolymer being less than 5 mol%, and [B] 0.1 to 10% by weight, based on the copolymer [A] of an organic peroxide.
Claim 6
Dependent Claim
67 words
A curable fluorine containing polymer composition comprising a copolymer [A] of (1) 3-bromoperfluoropropyl perfluorovinyl ether or 2-bromoperfluoropropyl perfluorovinyl ether, and (2) a fluorine containing monomer of 2 to 8 carbon atoms copolymerizable with said perfluoropropyl perfluorovinyl ether, the content of said perfluoropropylvinyl ether in said copolymer being less than 5 mol%, and [B] 0.1 to 10% by weight, based on the copolymer [A] of an organic peroxide.
Claim 7
Dependent Claim
38 words
The curable fluorine containing polymer composition according to claim 4 wherein the fluorine containing monomer of 2 to 8 carbon atoms copolymerizable with the bromoperfluoropropyl perfluorovinyl ether is tetrafluoroethylene, chlorotrifluoroethylene, vinylidene fluoride, hexafluoropropene, pentafluoropropene or perfluoroalkyl perfluorovinyl ethers.
Claim 8
Dependent Claim
24 words
The fluorine containing polymer according to claim 4 wherein the content of said perfluoropropyl perfluorovinyl ether in said copolymer is 0.01 to 2.0 mol%.
References Cited (Backward Citations)
US3306879A
Cited
US3351619A
Cited
US4035565A
Cited
US4262101A
Cited
JPS541585A
Cited
JPS534115A
Cited
EP0055407A1
Cited
US4546157A
Cited
EP0153848A2
Cited
JPS60195113A
Cited
US4564662A
Cited
EP0224037A2
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1992-05-15 | 1992-11-14 | 1993-05-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1996-05-15 | 1996-11-14 | 1997-05-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2000-05-15 | 2000-11-14 | 2001-05-16 | $7700.00 | Window Closed / Lapsed |