Patent US4122113A successfully refreshed from Google Patents.
US4122113A
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9-Fluorenyl acrylates
Assignee: Xerox Corp
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Filing: 1977-04-20
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Granted: 1978-10-24
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Expires: 1997-04-20
Abstract
Abstract Process for preparation of monomers of the formula ##STR1## WHEREIN R is hydrogen or methyl; X and Y are independently selected from the group consisting of NO 2 , halogen, --CN and --CF 3 ; and m and n can range from 0 to 3. Typical monomers embraced by the above formula can be prepared by Lewis Acid catalyzed esterification of methacrylic acid with a diazo derivative of an electron acceptor such as 9-diazo-2,4,7-trinitrofluorenone. These monomers can be used with other binders or polymerized by standard, free-radical techniques to polymers capable of forming self-supporting films which are useful in electrophotographic imaging members and methods.
Inventors
- 👤 Sam R. Turner
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 20:30
CPC Classifications
C; C07; C07C; C07C205/00; C07C205/39; C07C205/42; C08; C08F; C08F20/00; C08F20/02; C08F20/10; C08F20/12; C07C2603/00; C07C2603/02; C07C2603/04; C07C2603/06; C07C2603/10; C07C2603/12; C07C2603/18
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
40 words
Monomers of the formula where R is hydrogen or methyl; X and Y are independently selected from the group consisting of NO 2 , halogen, --CN and --CF 3 ; and m and n can range from 0 to 3.
Claim 2
Dependent Claim
40 words
Monomers of the formula where R is hydrogen or methyl; X and Y are independently selected from the group consisting of NO 2 , halogen, --CN and --CF 3 ; and m and n can range from 0 to 3.
References Cited (Backward Citations)
US3883488A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1981-10-23 | 1982-04-24 | 1982-10-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1985-10-23 | 1986-04-24 | 1986-10-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1989-10-23 | 1990-04-24 | 1990-10-24 | $7700.00 | Window Closed / Lapsed |