Patent US4868572A successfully refreshed from Google Patents.
US4851472A
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Copolymers of vinyl alcohol and fluorine-containing acrylate monomers
Assignee: Celanese International Corp
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Filing: 1987-07-01
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Granted: 1989-07-25
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Expires: 2007-07-01
Abstract
Abstract A vinyl alcohol copolymer comprising the following general structure: ##STR1## wherein R is hydrogen or methyl; X is an organic linking group such as ##STR2## R 1 is C 1 -C 4 alkyl; R f is a perfluoronated alkyl or poly(alkyleneoxy) group; m is 0 or 1; x is 50-99.9 mole %; y is 0-50 mole %; and z is 0.001-50 mole %. The vinyl alcohol copolymer has excellent solvent barrier properties.
Inventors
- 👤 Amir Famili
- 👤 Finn L. Marten
- 👤 Dillip K. Mohanty
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 22:43
CPC Classifications
C; C08; C08F; C08F8/00; C08F8/12
Claims Analysis
Total Claims: 28
Claim 1
Independent Claim
63 words
A vinyl alcohol copolymer comprising the following general structure: ##STR10## wherein R is hydrogen or methyl; X is ##STR11## wherein R 1 is a C 1 -C 4 alkyl group, and n is 0 or 1; R f is a perfluoroalkyl or perfluoro poly(alkyleneoxy) group; m is 0 or 1; x is 50-99.9 mole%; y is 0-50 mole%; and z is 0.001-50 mole%.
Claim 2
Dependent Claim
63 words
A vinyl alcohol copolymer comprising the following general structure: ##STR10## wherein R is hydrogen or methyl; X is ##STR11## wherein R 1 is a C 1 -C 4 alkyl group, and n is 0 or 1; R f is a perfluoroalkyl or perfluoro poly(alkyleneoxy) group; m is 0 or 1; x is 50-99.9 mole%; y is 0-50 mole%; and z is 0.001-50 mole%.
Claim 3
Dependent Claim
10 words
The copolymer of claim 1 in which R is methyl.
Claim 4
Dependent Claim
10 words
The copolymer of claim 1 in which m is 0.
Claim 5
Dependent Claim
10 words
The copolymer of claim 1 in which m is 1.
Claim 6
Dependent Claim
20 words
The copolymer of claim 1 in which x is 75-99.5 mole%, y is 0-25 mole% and z is 0.005-15 mole%.
Claim 7
Dependent Claim
20 words
The copolymer of claim 1 in which x is 85-99 mole%, y is 0-15 mole% and z is 0.005-10 mole%.
Claim 8
Dependent Claim
20 words
The copolymer of claim 2 in which x is 75-99.5 mole%,, y is 0-25 mole% and z is 0.005-15 mole%.
Claim 9
Dependent Claim
20 words
The copolymer of claim 2 in which x is 85-99 mole%, y is 0-15 mole% and z is 0.005-10 mole%.
Claim 10
Dependent Claim
11 words
The copolymer of claim 4 in which R f is perfluoroalkyl.
Claim 11
Dependent Claim
12 words
The copolymer of claim 3 in which R f is perfluoro poly(alkyleneoxy).
Claim 12
Dependent Claim
10 words
The copolymer of claim 4 in which n is 0.
Claim 13
Dependent Claim
10 words
The copolymer of claim 4 in which n is 1.
Claim 14
Dependent Claim
43 words
A vinyl alcohol copolymer consisting essentially of the following general formula ##STR12## wherein R 1 is C 1 -C 4 alkyl; R f is perfluoroalkyl; m is 0 or 1; x is 75-99.5 mole%; y is 0-25 mole%; and z is 0.005-15 mole%.
Claim 15
Dependent Claim
43 words
A vinyl alcohol copolymer consisting essentially of the following general formula ##STR12## wherein R 1 is C 1 -C 4 alkyl; R f is perfluoroalkyl; m is 0 or 1; x is 75-99.5 mole%; y is 0-25 mole%; and z is 0.005-15 mole%.
Claim 16
Dependent Claim
11 words
The copolymer of claim 13 in which R 1 is ethyl.
Claim 17
Dependent Claim
51 words
The copolymer of claim 13 in which m is 0 and R f is represented by R 2 --(CF 2 ) n and (CF 3 ) 2 CR 2 (CF 2 ) p -- where R 2 is F and n is 2 to 20 and p is 0 to 17.
Claim 18
Dependent Claim
50 words
The copolymer of claim 13 in which m is 1 and R f is represented by R 2 --(CF 2 ) n and (CF 3 ) 2 CR 2 (CF 2 ) p where R 2 is F and n is 2 to 20 and p is 0 to 17.
Claim 19
Dependent Claim
15 words
The copolymer of claim 15 in which R f is --C 8 F 17 .
Claim 20
Dependent Claim
15 words
The copolymer of claim 16 in which R f is --C 8 F 17 .
Claim 21
Dependent Claim
20 words
The copolymer of claim 13 in which x is 85-99 mole%, y is 0-15 mole% and z is 0.005-10 mole%.
Claim 22
Dependent Claim
64 words
A vinyl alcohol copolymer consisting essentially of the following general formula ##STR13## wherein R 4 is F or CF 3 ; R 3 is H, C 1 -C 20 alkyl, C 6 -C 20 aryl, C 7 -C 30 alkylaryl or a perflouro derivative thereof; n is a number from 1-10; x is 75-99.5 mole%; y is 0-25 mole%; and z is 0.005-15 mole%.
Claim 23
Dependent Claim
64 words
A vinyl alcohol copolymer consisting essentially of the following general formula ##STR13## wherein R 4 is F or CF 3 ; R 3 is H, C 1 -C 20 alkyl, C 6 -C 20 aryl, C 7 -C 30 alkylaryl or a perflouro derivative thereof; n is a number from 1-10; x is 75-99.5 mole%; y is 0-25 mole%; and z is 0.005-15 mole%.
Claim 24
Dependent Claim
11 words
The copolymer of claim 20 in which R 4 is F.
Claim 25
Dependent Claim
11 words
The copolymer of claim 21 in which R 3 is H.
Claim 26
Dependent Claim
16 words
The copolymer of claim 21 in which R 3 is a C 1 -C 20 perfluoroalkyl.
Claim 27
Dependent Claim
10 words
The copolymer of claim 20 in which n is 3-5.
Claim 28
Dependent Claim
20 words
The copolymer of claim 20 in which x is 85-99 mole%; y is 0-15 mole% and z is 0.005-10 mole%.
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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) | 1992-07-24 | 1993-01-23 | 1993-07-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1996-07-24 | 1997-01-23 | 1997-07-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2000-07-24 | 2001-01-23 | 2001-07-25 | $7700.00 | Window Closed / Lapsed |