Two-component dry-type developer
US4562136A · kind A · utility
27Cited by
1References
14Claims
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Key dates
| Filing date | Nov 7, 1984 |
| Grant date | Dec 31, 1985 |
| Priority date | — |
| Expiry date | Nov 7, 2004 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC09B45/16
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
A two-component dry-type developer which comprises carrier particles coated with silicone resin and toner particles containing as a negative polarity control agent a monoazo metal complex dye. As the monoazo metal complex dye, the following metal complex dye is preferable for use in this two-component dry-type developer: ##STR1## wherein X, Y and Z independently represent hydrogen, halogen, a carboxyl group, a hydroxyl group, a nitro group, a sulfo group or a sulfonamide group; and A.sup.+ represents H.sup.+, K.sup.+, Na.sup.+ or an aliphatic ammonium cation.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.