Patent US4548696A successfully refreshed from Google Patents.
US4548696A
Expired / Lapsed
US
⏱️ 0.0 years remaining
3,4-Disubstituted polypyrroles and articles of manufacture coated therewith
Assignee: Olin Corp
•
Filing: 1984-11-15
•
Granted: 1985-10-22
•
Expires: 2004-11-15
Abstract
Abstract Electrically conducting and non-conducting 3,4-disubstituted polypyrroles of the formulae: <IMAGE> (I) wherein: n is a positive integer greater than 4; R1 and R2 may be the same or different, provided that (1) when R1 and R2 are different, one of R1 and R2 is CH3 and the other of R1 and R2 is -COOR3 or -COCH3, wherein R3 is CH3, C2H5, C3H7 or t-C4H9; and (2) when R1 and R2 are the same they are C3H7, C4H9, C5H11 or C6H13; and electrically conducting salts thereof having the formula: <IMAGE> (II) wherein: n, R1, R2 and R3 have the above meanings, X is an anion, and Z is a number from about 3 to about 4.
Inventors
- 👤 Otha G. Weaver, Jr.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 17:22
CPC Classifications
H; H01; H01B; H01B1/00; H01B1/06; H01B1/12; H01B1/124; H01B1/127; C; C08; C08G; C08G61/00; C08G61/12; C08G61/122; C08G61/123; C08G61/124; Y; Y10; Y10T; Y10T428/00; Y10T428/31504; Y10T428/31678
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
153 words
An electrically non-conducting 3,4-disubstituted polypyrrole having the formula: ##STR5## wherein: x is a positive integer greater than 4; R 1 and R 2 may be the same or different, provided that (1) when R 1 and R 2 are different, one or R 1 and R 2 is CH 3 and the other of R 1 and R 2 is --COOR 3 or --COCH 3 , wherein R 3 is CH 3 , C 2 H 5 , C 3 H 7 or t-C 7 H 9 and (2) when R 1 and R 2 are the same they are C 4 H 9 , C 5 H 11 or C 6 H 13 or an electrically conducting salt thereof having the formula: ##STR6## wherein: n, R 1 , R 2 and R 3 have the above meanings, X is an anion, and Z is a number from about 3 to about 4.
Claim 2
Dependent Claim
153 words
An electrically non-conducting 3,4-disubstituted polypyrrole having the formula: ##STR5## wherein: x is a positive integer greater than 4; R 1 and R 2 may be the same or different, provided that (1) when R 1 and R 2 are different, one or R 1 and R 2 is CH 3 and the other of R 1 and R 2 is --COOR 3 or --COCH 3 , wherein R 3 is CH 3 , C 2 H 5 , C 3 H 7 or t-C 7 H 9 and (2) when R 1 and R 2 are the same they are C 4 H 9 , C 5 H 11 or C 6 H 13 or an electrically conducting salt thereof having the formula: ##STR6## wherein: n, R 1 , R 2 and R 3 have the above meanings, X is an anion, and Z is a number from about 3 to about 4.
Claim 3
Dependent Claim
29 words
A polypyrrole of claim 1 wherein one of R 1 and R 2 is CH 3 and the other of R 1 and R 2 is --COOR 3 .
Claim 4
Dependent Claim
12 words
A polypyrrole of claim 2 wherein R 3 is CH 3 .
Claim 5
Dependent Claim
29 words
A polypyrrole of claim 1 wherein one of R 1 and R 2 is CH 3 and the other of R 1 and R 2 is --COCH 3 .
Claim 6
Dependent Claim
17 words
A polypyrrole of claim 1 wherein R 1 and R 2 are C 4 H 9 .
Claim 7
Dependent Claim
17 words
A polypyrrole of claim 1 wherein R 1 and R 2 are C 5 H 11 .
Claim 8
Dependent Claim
17 words
A polypyrrole of claim 1 wherein R 1 and R 2 are C 6 H 13 .
Claim 9
Dependent Claim
18 words
An article of manufacture comprising a substrate coated with a polymer film comprising a polypyrrole of claim 1.
Claim 10
Dependent Claim
30 words
The article of claim 8 wherein said substrate is an electrically conductive surface and said polymer film is coated thereon by electrochemical polymerization utilizing said substrate as an electrode therein.
Claim 11
Dependent Claim
17 words
The article of claim 8 wherein said polymer film is coated on said substrate by solvent casting.
Claim 12
Dependent Claim
10 words
An organic solvent solution of a polypyrrole of claim 1.
References Cited (Backward Citations)
US3574072A
Cited
US4487667A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1988-10-21 | 1989-04-22 | 1989-10-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1992-10-21 | 1993-04-22 | 1993-10-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1996-10-21 | 1997-04-22 | 1997-10-22 | $7700.00 | Window Closed / Lapsed |