Processes for low melt crosslinked toner resins and toner
US5601960A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Nov 13, 1995 |
| Grant date | Feb 11, 1997 |
| Priority date | — |
| Expiry date | Nov 13, 2015 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03G9/081
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A process comprising: PA1 (a) reactive melt mixing of a base resin with a chemical initiator and crosslinking of said base resin to enable a highly crosslinked precursor resin, said highly crosslinked precursor resin being substantially free of sol, and comprising uncrosslinked portions and crosslinked portions, said crosslinked portions comprised of high density crosslinked microgel particles; and PA1 (b) accomplishing dilution by melt mixing said highly crosslinked precursor resin of (a) with a base resin to form a partially crosslinked toner resin, said toner resin being substantially free of sol, and comprising linear uncrosslinked portions and crosslinked portions, said crosslinked portions comprised essentially of high density crosslinked microgel particles, wherein said microgel particles are present in an amount of from about 1 to about 45 percent by weight of said toner resin.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.