Toner for developing an electrostatically charged image
US4657837A · kind A · utility
24Cited by
5References
6Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 6, 1985 |
| Grant date | Apr 14, 1987 |
| Priority date | — |
| Expiry date | Nov 6, 2005 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S430/105
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
The present invention relates to toners for developing electrostatically charged images which are comprised of a polyester binder resin condensed from diols of the formula ##STR1## with a polyhydric carboxylic acid or a derivative thereof wherein the polyhydric carboxylic acid is a mixture of dihyridic carboxylic acid or its alkylesters and about 30 mole % to about 80 mole % of the total acid content of more hydric carboxylic acids or therein hydrids.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.