US4414159A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Vinyl ether monomers and polymers therefrom
Assignee: EIDP Inc
•
Filing: 1981-12-14
•
Granted: 1983-11-08
•
Expires: 2001-12-14
Abstract
Abstract Vinyl ether monomers derived from diesters of the formula: <IMAGE> wherein R is CH3 or C2H5 and n is 0 to 10; copolymers of the vinyl ether monomers with one or more selected perfluorinated monoolefins; articles of manufacture made from the copolymers; process for making the diesters; process for using copolymer membranes in a chlor-alkali cell.
Inventors
- 👤 Paul R. Resnick
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 16:15
CPC Classifications
C; C07; C07C; C07C255/00; C08; C08F; C08F16/00; C08F16/12; C08F16/14; C08J; C08J5/00; C08J5/20; C08J5/22; C08J5/2206; C08J5/2218; C08J5/2231; C08J5/2237; C08J2333/00; C08J2333/04; C08J2333/06; C08J2333/10; C08J2333/12
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
74 words
A vinyl ether monomer of the formula: ##STR19## wherein Y is selected from the group consisting of CF 2 CN, of CF 2 CO 2 R, CF 2 CO 2 H, CF 2 CO 2 M, CF 2 CONH 2 and CF 2 CONR 2 ; R is CH 3 or C 2 H 5 ; n is an integer from 0 to 10; M is an alkali metal, ammonium or quaternary ammonium group.
Claim 2
Dependent Claim
74 words
A vinyl ether monomer of the formula: ##STR19## wherein Y is selected from the group consisting of CF 2 CN, of CF 2 CO 2 R, CF 2 CO 2 H, CF 2 CO 2 M, CF 2 CONH 2 and CF 2 CONR 2 ; R is CH 3 or C 2 H 5 ; n is an integer from 0 to 10; M is an alkali metal, ammonium or quaternary ammonium group.
Claim 3
Dependent Claim
14 words
A vinyl ether monomer according to claim 1 wherein R is CH 3 .
Claim 4
Dependent Claim
16 words
A vinyl ether monomer according to claim 1 wherein R is C 2 H 5 .
Claim 5
Dependent Claim
15 words
A vinyl ether monomer according to claim 2 or claim 3 wherein n is 0.
Claim 6
Dependent Claim
15 words
A vinyl ether monomer according to claim 2 or claim 3 wherein n is 1.
Claim 7
Dependent Claim
16 words
A vinyl ether monomer according to claim 4 where Y is CF 2 CO 2 R.
Claim 8
Dependent Claim
14 words
A vinyl ether monomer according to claim 4 wherein Y is CF 2 CN.
Claim 9
Dependent Claim
16 words
A vinyl ether monomer according to claim 5 where Y is CF 2 CO 2 R.
Claim 10
Dependent Claim
14 words
A vinyl ether monomer according to claim 5 where Y is CF 2 CN.
References Cited (Backward Citations)
US2988537A
Cited
US3274239A
Cited
US3654245A
Cited
US3674820A
Cited
US3546186A
Cited
US3467638A
Cited
US3933767A
Cited
BE861430A
Cited
US4153804A
Cited
US4131740A
Cited
US4138426A
Cited
US4281092A
Cited
US4273782A
Cited
US4275225A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1986-11-07 | 1987-05-09 | 1987-11-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1990-11-07 | 1991-05-09 | 1991-11-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1994-11-07 | 1995-05-09 | 1995-11-08 | $7700.00 | Window Closed / Lapsed |