US4076641A
Expired / Lapsed
US
⏱️ 0.0 years remaining
ω-AND CIS Alkenoic acid amides in electrostatographic developers
Assignee: Xerox Corp
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Filing: 1976-06-03
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Granted: 1978-02-28
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Expires: 1996-06-03
Abstract
Abstract An image developing material comprising particles, said particles including finely divided toner material and a minor proportion based on the weight of said toner material of primary and secondary amides of ω- and cis alkenoic acids.
Inventors
- 👤 Charles G. Scouten
- 👤 Willard C. Hamilton
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 16:20
CPC Classifications
G; G03; G03G; G03G9/00; G03G9/08; G03G9/097; G03G9/09733; G03G9/09775; G03G9/10
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
102 words
An image developing material comprising particles, said particles includng finely divided toner material and a minor proportion based on the weight of said toner material of an additive comprising ##STR4## where R 1 is H or an alkyl of 1 to about 18 carbon atoms and n is an integer having a value such that the total number of carbon atoms is from about 10 to about 22 and where R 2 is H, phenyl, lower alkyl substituted phenyl, and lower alkyl groups where lower alkyl includes from 1 to about 7 carbon atoms in either branched, straight chained, or cyclic configuration.
Claim 2
Dependent Claim
102 words
An image developing material comprising particles, said particles includng finely divided toner material and a minor proportion based on the weight of said toner material of an additive comprising ##STR4## where R 1 is H or an alkyl of 1 to about 18 carbon atoms and n is an integer having a value such that the total number of carbon atoms is from about 10 to about 22 and where R 2 is H, phenyl, lower alkyl substituted phenyl, and lower alkyl groups where lower alkyl includes from 1 to about 7 carbon atoms in either branched, straight chained, or cyclic configuration.
Claim 3
Dependent Claim
11 words
The developing material of claim 1 wherein the additive is oleamide.
Claim 4
Dependent Claim
11 words
The developing material of claim 1 wherein the additive is 10-undecenamide.
Claim 5
Dependent Claim
31 words
The developing material of claim 1 wherein said developing material comprises from about 0.01 percent to about 10 percent by weight of said additive based on the weight of said toner.
Claim 6
Dependent Claim
31 words
The developing mateial of claim 1 wherein said deveoping material comprises from about 0.1 percent to about 4 percent by weight of said additive based on the weight of said toner.
Claim 7
Dependent Claim
32 words
The developing material of claim 1 including from 10 to 1,000 parts by weight of carrier particles per part of toner, said carrier particles being larger than said finely divided toner material.
References Cited (Backward Citations)
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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) | 1981-02-27 | 1981-08-29 | 1982-02-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1985-02-27 | 1985-08-29 | 1986-02-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1989-02-27 | 1989-08-29 | 1990-02-28 | $7700.00 | Window Closed / Lapsed |