Patent DE426785C successfully refreshed from Google Patents.
US4656113A
Expired / Lapsed
US
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Dye composition and use thereof
Assignee: Orient Chemical Industries Ltd
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Filing: 1985-09-19
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Granted: 1987-04-07
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Expires: 2005-09-19
Abstract
Abstract A dye composition prepared by polymerizing an unsaturated monomer in the presence of a quinoneimine dye and an azo initiator in amounts expressed by x≧5 and y≧0.33x 1 .2 wherein x is the amount of the quinoneimine dye in % by weight based on the unsaturated monomer, and y is the amount of the azo initiator in % by weight based on the unsaturated monomer. The composition is useful for preparing toners for developing electrostatic images because of its outstanding charge control effect and also for preparing electrostatic coating powder compositions.
Inventors
- 👤 Tetsuya Ohshima
- 👤 Hisashi Senshu
- 👤 Takeshi Matsuyama
- 👤 Yoji Kawagishi
- 👤 Takuo Andoh
- 👤 Takashi Kiryu
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 19:37
CPC Classifications
G; G03; G03G; G03G9/00; G03G9/08; G03G9/09; G03G9/0906; G03G9/0922; C; C08; C08F; C08F2/00; C08F2/44
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
65 words
A dye composition prepared by polymerizing an unsaturated monomer in the presence of a quinoneimine dye and an azo initiator in amounts expressed by x≧5 and y≧0.33x 1 .2 wherein x is the amount of the quinoneimine dye in % by weight based on the unsaturated monomer, and y is the amount of the azo initiator in % by weight based on the unsaturated monomer.
Claim 2
Dependent Claim
65 words
A dye composition prepared by polymerizing an unsaturated monomer in the presence of a quinoneimine dye and an azo initiator in amounts expressed by x≧5 and y≧0.33x 1 .2 wherein x is the amount of the quinoneimine dye in % by weight based on the unsaturated monomer, and y is the amount of the azo initiator in % by weight based on the unsaturated monomer.
Claim 3
Dependent Claim
72 words
An electrostatic coating powder composition which comprises a dye composition prepared by polymerizing an unsaturated monomer in the presence of a quinoneimine dye and an azo initiator in amounts expressed by x≧5 and y≧0.33x 1 .2 wherein x is the amount of the quinoneimine dye in % by weight based on the unsaturated monomer, and y is the amount of the azo initiator in % by weight based on the unsaturated monomer.
Claim 4
Dependent Claim
72 words
An electrostatic coating powder composition which comprises a dye composition prepared by polymerizing an unsaturated monomer in the presence of a quinoneimine dye and an azo initiator in amounts expressed by x≧5 and y≧0.33x 1 .2 wherein x is the amount of the quinoneimine dye in % by weight based on the unsaturated monomer, and y is the amount of the azo initiator in % by weight based on the unsaturated monomer.
Claim 5
Dependent Claim
92 words
An electrostatic coating powder composition which comprises a dye composition prepared by polymerizing an unsaturated monomer in the presence of a quinoneimine dye and an azo initiator in amounts expressed by x≧5 and y≧0.33x 1 .2 wherein x is the amount of the quinoneimine dye in % by weight based on the unsaturated monomer, and y is the amount of the azo initiator in % by weight based on the unsaturated monomer, said dye composition being combined with a coating resin to provide an electrostatic coating powder for electrostatic coating of surfaces.
Claim 6
Dependent Claim
92 words
An electrostatic coating powder composition which comprises a dye composition prepared by polymerizing an unsaturated monomer in the presence of a quinoneimine dye and an azo initiator in amounts expressed by x≧5 and y≧0.33x 1 .2 wherein x is the amount of the quinoneimine dye in % by weight based on the unsaturated monomer, and y is the amount of the azo initiator in % by weight based on the unsaturated monomer, said dye composition being combined with a coating resin to provide an electrostatic coating powder for electrostatic coating of surfaces.
Claim 7
Dependent Claim
29 words
Coating composition of claim 3, wherein the resin is a meltable resin capable of forming an adherent coating upon baking a surface electrostatically coated with the electrostatic coating powder.
Claim 8
Dependent Claim
16 words
Composition of claim 1 wherein x is 5 to 200% and y is 2.28 to 190.4%.
Claim 9
Dependent Claim
16 words
Composition of claim 2 wherein x is 5 to 200% and y is 2.28 to 190.4%.
Claim 10
Dependent Claim
16 words
Composition of claim 3 wherein x is 5 to 200% and y is 2.28 to 190.4%.
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) | 1990-04-06 | 1990-10-06 | 1991-04-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1994-04-06 | 1994-10-06 | 1995-04-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1998-04-06 | 1998-10-06 | 1999-04-07 | $7700.00 | Window Closed / Lapsed |