Electrostatic image forming toner
US4564573A · kind A · utility
7Cited by
2References
10Claims
0Family size
Assignees
Inventors
Key dates
| Filing date | Jul 24, 1984 |
| Grant date | Jan 14, 1986 |
| Priority date | — |
| Expiry date | Jul 24, 2004 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03G9/08708
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
An electrostatic image developing toner comprises a binder resin which contains at least 60% by weight of a styrene-butadiene copolymer. The copolymer contains a component A having a molecular weight of at least 100,000 in an amount of at least 20% by weight relative to the binder resin, and a component B having a molecular weight of at least 500,000 in the component A is not more than 15% by weight relative to the binder resin. The toner has adequate flowability and noncoagulation property and is capable of forming a superior visible image in a contact heat fixing system.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.