Toner and developer compositions with sulfur cotaining organopolysiloxane waxes
US4820604A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Oct 1, 1987 |
| Grant date | Apr 11, 1989 |
| Priority date | — |
| Expiry date | Oct 1, 2007 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03G9/08773
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A toner composition comprised of resin particles, pigment particles, and a sulfur containing organopolysiloxane wax, such as those with PA1 (1) at least three mole percent of siloxane units of the formula ##STR1## (2) at least one mole percent of siloxane units selected from the formulas ##STR2## (3) from 0 to 96 mole percent of siloxane units have the formula ##EQU1## where R is a monovalent hydrocarbon radical having from 1 to 10 carbon atoms, R.sup.1 is an alkyl radical linked to silicon with an SiC-bond which has at an average of least 25 carbon atoms, R.sup.2 is a multivalent radical selected from a hydrocarbon radical having from 2 to 10 carbon atoms and which radical is free of aliphatic unsaturation, a hydrocarbon ether or a hydrocarbon thioether, a is an integer of from 0 to 2, b is an integer of 1 or 2, c is an integer of 1 or 2, d is an integer of from 0 to 2, e is an integer of from 0 to 3, and the sum of a+bis 1,2 or 3, and and the sum of c+d is 1,2 or 3.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.