Process for preparing toner of improved mechanical properties
US4222982A · kind A · utility
7Cited by
5References
6Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 19, 1979 |
| Grant date | Sep 16, 1980 |
| Priority date | — |
| Expiry date | Jan 19, 1999 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S428/91
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A process for preparing electrostatographic toner particles having improved mechanical properties and controlled particle size and size distribution is provided through molecular orientation of glassy, brittle, semicrystalline, low molecular weight polymers. Molecular orientation results in more flexible polymers and greatly increases their yield stress, modulus and mechanical fatigue lifetime. The molecular orientation of these polymers is obtained by extrusion of fibers or films thereof.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.