Electrophotographic toner using bioplastic and production method thereof
US9785072B2 · kind B2 · utility
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10Claims
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Key dates
| Filing date | Mar 20, 2015 |
| Grant date | Oct 10, 2017 |
| Priority date | — |
| Expiry date | May 31, 2035 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03G9/08797
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
An electrophotographic toner which is excellent in grindability, fixing property and durability by being obtained via a step of melt-kneading a mixture containing an amorphous bioplastic having a weight-average molecular weight (Mw) of 55000 to 120000, a terpene phenol resin, and a styrene acrylic resin having a weight-average molecular weight (Mw) of 85500 to 118000 so as to obtain a kneaded mixture, and a step of grinding the kneaded mixture after hardening.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.