Patent US4418200A successfully refreshed from Google Patents.
US4418200A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Tricyclic imidyl derivatives
Assignee: Novartis Corp
•
Filing: 1982-02-16
•
Granted: 1983-11-29
•
Expires: 2002-02-16
Abstract
Abstract Novel tricyclic imidyl derivatives, for example those of the formula ##STR1## [n=1 or 2, Y=a bridge member and X=a functional group] are described. The novel tricyclic imidyl derivatives are suitable for the preparation of photocrosslinkable polymers by incorporation into existing polymer chains or by building up the polymer chain from tricyclic imidyl derivatives, according to the definition, with suitable functional groups X by polymerization or polycondensation. The photocrosslinkable polymers obtained by this means can be used, for example, to produce printing plates for the offset printing process and especially as photoresists.
Inventors
- 👤 Hans Zweifel
- 👤 Walter Schilling
- 👤 Angelo Storni
- 👤 Daniel Bellus
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 10:12
CPC Classifications
C; C07; C07D; C07D491/00; C07D491/02; C07D491/04; C07C; C07C61/00; C07C61/16; C07C61/39; C07D209/00; C07D209/56; C07D209/58; C07D209/62; C07D209/66; C07D209/70; C08; C08G; C08G85/00; G; G03; G03F; G03F7/00; G03F7/004; G03F7/038; G03F7/0388
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
97 words
A compound of the formula ##STR45## in which R and R 1 independently of one another are hydrogen, halogen, alkyl having 1 to 4 carbon atoms or methoxy, Y is alkylene having 2 to 30 carbon atoms, cycloalkylene having 5 or 6 carbon atoms, methylenebis(cyclohexylene), arylene having 6 to 10 carbon atoms, aralkylene having 7 or 8 carbon atoms or alkylarylene having 7 or 8 carbon atoms; or said arylene substituted by one alkyl of 1 to 4 carbon atoms, by one alkoxy of 1 to 4 carbon atoms or by one nitro, and X is --OH.
Claim 2
Dependent Claim
97 words
A compound of the formula ##STR45## in which R and R 1 independently of one another are hydrogen, halogen, alkyl having 1 to 4 carbon atoms or methoxy, Y is alkylene having 2 to 30 carbon atoms, cycloalkylene having 5 or 6 carbon atoms, methylenebis(cyclohexylene), arylene having 6 to 10 carbon atoms, aralkylene having 7 or 8 carbon atoms or alkylarylene having 7 or 8 carbon atoms; or said arylene substituted by one alkyl of 1 to 4 carbon atoms, by one alkoxy of 1 to 4 carbon atoms or by one nitro, and X is --OH.
Claim 3
Dependent Claim
42 words
The compound according to claim 1 in which R and R 1 are each hydrogen, Y is a straight-chain or branched alkylene group having 2 to 11 carbon atoms, a 1,3- or 1,4-phenylene group or the 1,4-cyclohexylene group, and X is --OH.
Claim 4
Dependent Claim
32 words
A compound according to claim 1 in which R and R 1 are each hydrogen, Y is a straight-chain or branched alkylene having 2 to 11 carbon atoms, and X is --OH.
Claim 5
Dependent Claim
10 words
The compound according to claim 1 having the formula ##STR46##
Claim 6
Dependent Claim
10 words
The compound according to claim 1 having the formula ##STR47##
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1986-11-28 | 1987-05-30 | 1987-11-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1990-11-28 | 1991-05-30 | 1991-11-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1994-11-28 | 1995-05-30 | 1995-11-29 | $7700.00 | Window Closed / Lapsed |