Electrophotographic toner comprising low and high molecular weight blend of binder resins
US4246332A · kind A · utility
30Cited by
1References
11Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 27, 1979 |
| Grant date | Jan 20, 1981 |
| Priority date | — |
| Expiry date | Feb 27, 1999 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03G9/08795
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
An electrophotographic toner comprising a binder resin and a colorant dispersed therein wherein the binder resin comprises about 50 to 95% by weight of a low temperature melting, high fluidity resin having a number average molecular weight of about 1,000 to 4,000, a glass transition temperature of about 40.degree. to 60.degree. C. and a melt index at 110.degree. C. of about 50 to 200 g/10 min or a mixture thereof, and about 5 to 50% by weight of a high molecular weight polymer having a glass transition temperature of about 35.degree. to 60.degree. C. and a weight average molecular weight of more than about 500,000.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.