US4079014A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electrographic toner and developer composition containing a 4-aza-1-azoniabicyclo(2.2.2) octane salt as a charge control agent
Assignee: Eastman Kodak Co
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Filing: 1976-07-21
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Granted: 1978-03-14
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Expires: 1996-07-21
Abstract
Abstract The present invention relates to the use of 4-aza-1-azoniabicyclo(2.2.2)octane salts as charge control agents for an electrostatic toner contained in dry electrographic developer compositions. These charge control agents preferably have the formula ##STR1## wherein R is an aliphatic organic group having from 4 to about 30 carbon atoms, and X is an anion.
Inventors
- 👤 Donald MacArthur Burness
- 👤 Thomas Karl Dykstra
- 👤 Thomas Arthur Jadwin
- 👤 Hans Gway Ling
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 03:31
CPC Classifications
G; G03; G03G; G03G9/00; G03G9/08; G03G9/097; G03G9/09733; G03G9/09758
Claims Analysis
Total Claims: 16
Claim 1
Independent Claim
72 words
A dry, particulate electrostatic toner containing particles having a particle size of from about 0.1 micron to about 100 microns, said particles having a composition comprising a polymeric binder having a softening temperature within the range of from about 40° C to about 200° C and a material having the formula: ##STR4## wherein R is an aliphatic organic group having from 4 to about 30 carbon atoms, and X is an anion.
Claim 2
Dependent Claim
72 words
A dry, particulate electrostatic toner containing particles having a particle size of from about 0.1 micron to about 100 microns, said particles having a composition comprising a polymeric binder having a softening temperature within the range of from about 40° C to about 200° C and a material having the formula: ##STR4## wherein R is an aliphatic organic group having from 4 to about 30 carbon atoms, and X is an anion.
Claim 3
Dependent Claim
27 words
A dry, particulate electrostatic toner as defined in claim 1 wherein said particle contains a pigment or a dyestuff in an amount effective to color said particles.
Claim 4
Dependent Claim
30 words
A dry, particulate electrostatic toner as defined in claim 1 wherein said material is present in a concentration within the range of from about 0.001 to about 3 weight percent.
Claim 5
Dependent Claim
88 words
A dry, particulate electrostatic toner containing particles having a particle size of from about 0.1 micron to about 30 microns, said particles having a composition comprising (a) a polymeric binder having a softening temperature within the range of from about 40° C to about 200° C, (b) a pigment or dyestuff in an amount effective to color said particles, and (c) a material having the following formula: ##STR5## wherein R is an aliphatic organic group having from 4 to about 30 carbon atoms, and X is an anion.
Claim 6
Dependent Claim
88 words
A dry, particulate electrostatic toner containing particles having a particle size of from about 0.1 micron to about 30 microns, said particles having a composition comprising (a) a polymeric binder having a softening temperature within the range of from about 40° C to about 200° C, (b) a pigment or dyestuff in an amount effective to color said particles, and (c) a material having the following formula: ##STR5## wherein R is an aliphatic organic group having from 4 to about 30 carbon atoms, and X is an anion.
Claim 7
Dependent Claim
18 words
A dry, particulate electrostatic toner as defined in claim 4 wherein said polymeric binder is a styrene-containing binder.
Claim 8
Dependent Claim
30 words
A dry, particulate electrostatic toner as defined in claim 4 wherein said material is present in a concentration within the range of from about 0.001 to about 3 weight percent.
Claim 9
Dependent Claim
92 words
A dry, particulate electrostatic toner containing particles having a particle size of from about 0.1 micron to about 30 microns, said particles having a composition comprising (a) a styrene-containing polymeric binder, (b) a pigment or dyestuff in an amount effective to color said particles, and (c) an amount within the range of from about 0.001 to about 3 percent by weight of said particles of a material having the following formula: ##STR6## wherein R is an aliphatic organic group having from 4 to about 30 carbon atoms, and X is an anion.
Claim 10
Dependent Claim
92 words
A dry, particulate electrostatic toner containing particles having a particle size of from about 0.1 micron to about 30 microns, said particles having a composition comprising (a) a styrene-containing polymeric binder, (b) a pigment or dyestuff in an amount effective to color said particles, and (c) an amount within the range of from about 0.001 to about 3 percent by weight of said particles of a material having the following formula: ##STR6## wherein R is an aliphatic organic group having from 4 to about 30 carbon atoms, and X is an anion.
Claim 11
Dependent Claim
19 words
A dry, particulate electrostatic toner as defined in claim 7 wherein said particles contain carbon black as a pigment.
Claim 12
Dependent Claim
30 words
A dry, particulate electrostatic toner as defined in claim 7 wherein said material is present in a concentration within the range of from about 0.1 to about 2 weight percent.
Claim 13
Dependent Claim
119 words
An electrographic developer composition comprising magnetic carrier particles having a particle size within the range of from about 30 to about 1200 microns and having electrostatically attractable thereto a dry, particulate electrostatic toner containing particles having a particle size of from about 0.1 micron to about 30 microns, said toner particles having a particle composition comprising (a) a polymeric binder having a softening temperature within the range of from about 40° C to about 200° C, (b) a pigment or dyestuff in an amount effective to color said toner particles, and (c) a material having the following formula: ##STR7## wherein R is an aliphatic organic group having from 4 to about 30 carbon atoms, and X is an anion.
Claim 14
Dependent Claim
119 words
An electrographic developer composition comprising magnetic carrier particles having a particle size within the range of from about 30 to about 1200 microns and having electrostatically attractable thereto a dry, particulate electrostatic toner containing particles having a particle size of from about 0.1 micron to about 30 microns, said toner particles having a particle composition comprising (a) a polymeric binder having a softening temperature within the range of from about 40° C to about 200° C, (b) a pigment or dyestuff in an amount effective to color said toner particles, and (c) a material having the following formula: ##STR7## wherein R is an aliphatic organic group having from 4 to about 30 carbon atoms, and X is an anion.
Claim 15
Dependent Claim
34 words
An electrographic developer composition as defined in claim 10 wherein said material is present in a concentration within the range of from about 0.001 to about 3 percent by weight of said toner particles.
Claim 16
Dependent Claim
17 words
An electrographic developer composition as defined in claim 10 wherein said polymeric binder is a styrene-containing binder.
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) | 1981-03-13 | 1981-09-12 | 1982-03-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1985-03-13 | 1985-09-12 | 1986-03-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1989-03-13 | 1989-09-12 | 1990-03-14 | $7700.00 | Window Closed / Lapsed |