Fluidity improver for positively-charging resin powder
US4845004A · kind A · utility
21Cited by
2References
15Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | May 16, 1988 |
| Grant date | Jul 4, 1989 |
| Priority date | — |
| Expiry date | May 16, 2008 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/2995
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
There is disclosed a hydrophobic silica-type micropowder comprising silica-type microparticles which have been treated with certain secondary or tertiary amine-functional silanes. When the micropowder is combined with a positively-charging resin powder, such as a toner, the fluidity of the resin powder is substantially increased and this improved fluidity is retained upon long term storage.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.