Magnetic or electrostatographic imaging and high speed fusing method uses polyamide resin in toner
US4256818A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Nov 5, 1979 |
| Grant date | Mar 17, 1981 |
| Priority date | — |
| Expiry date | Nov 5, 1999 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S260/38
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
This invention is directed to new electrophotographic, and magnetic toners, which are useful for example in high speed fusing systems, these toners being comprised of a polyamide resin, a pigment or colorant, which pigment or colorant may be magnetic and as an optional ingredient, a carrier material. The polyamide resin is of the formula ##STR1## wherein R, R.sub.1, R.sub.2, and R.sub.3 are radicals independently selected from aliphatic, substituted aliphatic, aromatic, substituted aromatic, cycloaliphatic, and heterocyclic, x is a number of from 1 to about 100, and y is a number of from 1 to about 100. In one preferred embodiment the toner composition is comprised of the polyamide resin and a high loading, 50-75 percent of a magnetic material, allowing for high speed fusing in magnetic imaging systems.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.